Merge branch 'linux-2.6'

172 files changed, 3762 insertions, 923 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0d8fac3b037..d7c0984d4a8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -354,6 +354,7 @@ config ARCH_SA1100
 config ARCH_S3C2410
 	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
 	select GENERIC_GPIO
+	select GENERIC_TIME
 	help
 	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index ab9f2d4bd04..00ea4305ad5 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -47,8 +47,13 @@ comma = ,
 # Note that GCC does not numerically define an architecture version
 # macro, but instead defines a whole series of macros which makes
 # testing for a specific architecture or later rather impossible.
+arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a)
 arch-$(CONFIG_CPU_32v6)		:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
+# Only override the compiler option if ARMv6. The ARMv6K extensions are
+# always available in ARMv7
+ifeq ($(CONFIG_CPU_32v6),y)
 arch-$(CONFIG_CPU_32v6K)	:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
+endif
 arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
 arch-$(CONFIG_CPU_32v4T)	:=-D__LINUX_ARM_ARCH__=4 -march=armv4t
 arch-$(CONFIG_CPU_32v4)		:=-D__LINUX_ARM_ARCH__=4 -march=armv4
diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
index 0119c0d5f97..5d78ffb8a9a 100644
--- a/arch/arm/kernel/head-nommu.S
+++ b/arch/arm/kernel/head-nommu.S
@@ -33,7 +33,7 @@
  * numbers for r1.
  *
  */
-	__INIT
+	.section ".text.head", "ax"
 	.type	stext, %function
 ENTRY(stext)
 	msr	cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 1d35edacc01..41f98b4ba2e 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -73,7 +73,7 @@
  * crap here - that's what the boot loader (or in extreme, well justified
  * circumstances, zImage) is for.
  */
-	__INIT
+	.section ".text.head", "ax"
 	.type	stext, %function
 ENTRY(stext)
 	msr	cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
diff --git a/arch/arm/kernel/init_task.c b/arch/arm/kernel/init_task.c
index a00cca0000b..bd4ef53bc6b 100644
--- a/arch/arm/kernel/init_task.c
+++ b/arch/arm/kernel/init_task.c
@@ -31,7 +31,7 @@ EXPORT_SYMBOL(init_mm);
  * The things we do for performance..
  */
 union thread_union init_thread_union
-	__attribute__((__section__(".init.task"))) =
+	__attribute__((__section__(".data.init_task"))) =
 		{ INIT_THREAD_INFO(init_task) };
 
 /*
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 1b061583408..79b7e5cf541 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -116,8 +116,8 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 
 			offset += sym->st_value - loc;
 			if (offset & 3 ||
-			    offset <= (s32)0xfc000000 ||
-			    offset >= (s32)0x04000000) {
+			    offset <= (s32)0xfe000000 ||
+			    offset >= (s32)0x02000000) {
 				printk(KERN_ERR
 				       "%s: relocation out of range, section "
 				       "%d reloc %d sym '%s'\n", module->name,
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 070bcb7a630..1b76d87fa33 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -486,7 +486,7 @@ static void ipi_timer(void)
 }
 
 #ifdef CONFIG_LOCAL_TIMERS
-asmlinkage void do_local_timer(struct pt_regs *regs)
+asmlinkage void __exception do_local_timer(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	int cpu = smp_processor_id();
@@ -551,7 +551,7 @@ static void ipi_cpu_stop(unsigned int cpu)
  *
  *  Bit 0 - Inter-processor function call
  */
-asmlinkage void do_IPI(struct pt_regs *regs)
+asmlinkage void __exception do_IPI(struct pt_regs *regs)
 {
 	unsigned int cpu = smp_processor_id();
 	struct ipi_data *ipi = &per_cpu(ipi_data, cpu);
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 6be67296f33..e4156e7868c 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -23,11 +23,15 @@ SECTIONS
 #else
 	. = PAGE_OFFSET + TEXT_OFFSET;
 #endif
-	.init : {			/* Init code and data		*/
+	.text.head : {
 		_stext = .;
-			_sinittext = .;
+		_sinittext = .;
+		*(.text.head)
+	}
+
+	.init : {			/* Init code and data		*/
 			*(.init.text)
-			_einittext = .;
+		_einittext = .;
 		__proc_info_begin = .;
 			*(.proc.info.init)
 		__proc_info_end = .;
@@ -119,7 +123,7 @@ SECTIONS
 		 * first, the init task union, aligned
 		 * to an 8192 byte boundary.
 		 */
-		*(.init.task)
+		*(.data.init_task)
 
 #ifdef CONFIG_XIP_KERNEL
 		. = ALIGN(4096);
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index e238ad8cfd8..018d637f87f 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -107,7 +107,7 @@ config ARCH_AT91SAM9260_SAM9XE
 	depends on ARCH_AT91SAM9260
 	help
 	  Select this if you are using Atmel's AT91SAM9XE System-on-Chip.
-	  They are basicaly AT91SAM9260s with various sizes of embedded Flash.
+	  They are basically AT91SAM9260s with various sizes of embedded Flash.
 
 comment "AT91SAM9260 / AT91SAM9XE Board Type"
 
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index 8781aaeb576..856c681ebbb 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -22,6 +22,7 @@ comment "OMAP Board Type"
 config MACH_OMAP_INNOVATOR
 	bool "TI Innovator"
 	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX)
+	select OMAP_MCBSP
 	help
           TI OMAP 1510 or 1610 Innovator board support. Say Y here if you
           have such a board.
@@ -29,6 +30,7 @@ config MACH_OMAP_INNOVATOR
 config MACH_OMAP_H2
 	bool "TI H2 Support"
 	depends on ARCH_OMAP1 && ARCH_OMAP16XX
+	select OMAP_MCBSP
     	help
 	  TI OMAP 1610/1611B H2 board support. Say Y here if you have such
 	  a board.
@@ -36,6 +38,7 @@ config MACH_OMAP_H2
 config MACH_OMAP_H3
 	bool "TI H3 Support"
 	depends on ARCH_OMAP1 && ARCH_OMAP16XX
+	select GPIOEXPANDER_OMAP
     	help
 	  TI OMAP 1710 H3 board support. Say Y here if you have such
 	  a board.
@@ -43,7 +46,7 @@ config MACH_OMAP_H3
 config MACH_OMAP_OSK
 	bool "TI OSK Support"
 	depends on ARCH_OMAP1 && ARCH_OMAP16XX
-	select TPS65010
+	select OMAP_MCBSP
     	help
 	  TI OMAP 5912 OSK (OMAP Starter Kit) board support. Say Y here
           if you have such a board.
@@ -84,7 +87,7 @@ config MACH_OMAP_PALMTE
           Support for the Palm Tungsten E PDA. Currently only the LCD panel
           is supported. To boot the kernel, you'll need a PalmOS compatible
           bootloader; check out http://palmtelinux.sourceforge.net for more
-          informations.
+          information.
           Say Y here if you have such a PDA, say NO otherwise.
 
 config MACH_NOKIA770
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
index 7165f74f78d..a8b9a00cea2 100644
--- a/arch/arm/mach-omap1/Makefile
+++ b/arch/arm/mach-omap1/Makefile
@@ -37,4 +37,3 @@ led-$(CONFIG_MACH_OMAP_INNOVATOR)	+= leds-innovator.o
 led-$(CONFIG_MACH_OMAP_PERSEUS2)	+= leds-h2p2-debug.o
 led-$(CONFIG_MACH_OMAP_OSK)		+= leds-osk.o
 obj-$(CONFIG_LEDS)			+= $(led-y)
-
diff --git a/arch/arm/mach-omap1/board-fsample.c b/arch/arm/mach-omap1/board-fsample.c
index 62e42c7a628..f65baa95986 100644
--- a/arch/arm/mach-omap1/board-fsample.c
+++ b/arch/arm/mach-omap1/board-fsample.c
@@ -246,7 +246,7 @@ static void __init fsample_init_smc91x(void)
 	mdelay(50);
 }
 
-void omap_fsample_init_irq(void)
+static void __init omap_fsample_init_irq(void)
 {
 	omap1_init_common_hw();
 	omap_init_irq();
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 9d2346fb68f..7b260b7c537 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -455,7 +455,7 @@ static void __init h3_init_smc91x(void)
 	}
 }
 
-void h3_init_irq(void)
+static void __init h3_init_irq(void)
 {
 	omap1_init_common_hw();
 	omap_init_irq();
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index cb00530ad27..7e63a41e37c 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -308,7 +308,7 @@ static void __init innovator_init_smc91x(void)
 	}
 }
 
-void innovator_init_irq(void)
+static void __init innovator_init_irq(void)
 {
 	omap1_init_common_hw();
 	omap_init_irq();
diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c
index fa4be962df6..1d5c8d50972 100644
--- a/arch/arm/mach-omap1/board-perseus2.c
+++ b/arch/arm/mach-omap1/board-perseus2.c
@@ -246,7 +246,7 @@ static void __init perseus2_init_smc91x(void)
 	mdelay(50);
 }
 
-void omap_perseus2_init_irq(void)
+static void __init omap_perseus2_init_irq(void)
 {
 	omap1_init_common_hw();
 	omap_init_irq();
diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
index 6dcd10ab449..da8a3ac47e1 100644
--- a/arch/arm/mach-omap1/devices.c
+++ b/arch/arm/mach-omap1/devices.c
@@ -24,35 +24,6 @@
 #include <asm/arch/mux.h>
 #include <asm/arch/gpio.h>
 
-#if	defined(CONFIG_OMAP1610_IR) || defined(CONFIG_OMAP161O_IR_MODULE)
-
-static u64 irda_dmamask = 0xffffffff;
-
-static struct platform_device omap1610ir_device = {
-	.name = "omap1610-ir",
-	.id = -1,
-	.dev = {
-		.dma_mask	= &irda_dmamask,
-	},
-};
-
-static void omap_init_irda(void)
-{
-	/* FIXME define and use a boot tag, members something like:
-	 *  u8		uart;		// uart1, or uart3
-	 * ... but driver only handles uart3 for now
-	 *  s16		fir_sel;	// gpio for SIR vs FIR
-	 * ... may prefer a callback for SIR/MIR/FIR mode select;
-	 * while h2 uses a GPIO, H3 uses a gpio expander
-	 */
-	if (machine_is_omap_h2()
-			|| machine_is_omap_h3())
-		(void) platform_device_register(&omap1610ir_device);
-}
-#else
-static inline void omap_init_irda(void) {}
-#endif
-
 /*-------------------------------------------------------------------------*/
 
 #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
@@ -90,6 +61,45 @@ static void omap_init_rtc(void)
 static inline void omap_init_rtc(void) {}
 #endif
 
+#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
+
+#if defined(CONFIG_ARCH_OMAP15XX)
+#  define OMAP1_MBOX_SIZE	0x23
+#  define INT_DSP_MAILBOX1	INT_1510_DSP_MAILBOX1
+#elif defined(CONFIG_ARCH_OMAP16XX)
+#  define OMAP1_MBOX_SIZE	0x2f
+#  define INT_DSP_MAILBOX1	INT_1610_DSP_MAILBOX1
+#endif
+
+#define OMAP1_MBOX_BASE		IO_ADDRESS(OMAP16XX_MAILBOX_BASE)
+
+static struct resource mbox_resources[] = {
+	{
+		.start		= OMAP1_MBOX_BASE,
+		.end		= OMAP1_MBOX_BASE + OMAP1_MBOX_SIZE,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= INT_DSP_MAILBOX1,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mbox_device = {
+	.name		= "mailbox",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(mbox_resources),
+	.resource	= mbox_resources,
+};
+
+static inline void omap_init_mbox(void)
+{
+	platform_device_register(&mbox_device);
+}
+#else
+static inline void omap_init_mbox(void) { }
+#endif
+
 #if defined(CONFIG_OMAP_STI)
 
 #define OMAP1_STI_BASE		IO_ADDRESS(0xfffea000)
@@ -154,7 +164,8 @@ static int __init omap1_init_devices(void)
 	/* please keep these calls, and their implementations above,
 	 * in alphabetical order so they're easier to sort through.
 	 */
-	omap_init_irda();
+
+	omap_init_mbox();
 	omap_init_rtc();
 	omap_init_sti();
 
diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c
index fab8b0b27cf..81c4e738506 100644
--- a/arch/arm/mach-omap1/io.c
+++ b/arch/arm/mach-omap1/io.c
@@ -17,11 +17,11 @@
 #include <asm/io.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/tc.h>
-#include <asm/arch/omapfb.h>
 
 extern int omap1_clk_init(void);
 extern void omap_check_revision(void);
 extern void omap_sram_init(void);
+extern void omapfb_reserve_sdram(void);
 
 /*
  * The machine specific code may provide the extra mapping besides the
@@ -121,7 +121,7 @@ void __init omap1_map_common_io(void)
 #endif
 
 	omap_sram_init();
-	omapfb_reserve_mem();
+	omapfb_reserve_sdram();
 }
 
 /*
diff --git a/arch/arm/mach-omap1/mailbox.c b/arch/arm/mach-omap1/mailbox.c
new file mode 100644
index 00000000000..d3abf560990
--- /dev/null
+++ b/arch/arm/mach-omap1/mailbox.c
@@ -0,0 +1,206 @@
+/*
+ * Mailbox reservation modules for DSP
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ * Written by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/resource.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <asm/arch/mailbox.h>
+#include <asm/arch/irqs.h>
+#include <asm/io.h>
+
+#define MAILBOX_ARM2DSP1		0x00
+#define MAILBOX_ARM2DSP1b		0x04
+#define MAILBOX_DSP2ARM1		0x08
+#define MAILBOX_DSP2ARM1b		0x0c
+#define MAILBOX_DSP2ARM2		0x10
+#define MAILBOX_DSP2ARM2b		0x14
+#define MAILBOX_ARM2DSP1_Flag		0x18
+#define MAILBOX_DSP2ARM1_Flag		0x1c
+#define MAILBOX_DSP2ARM2_Flag		0x20
+
+unsigned long mbox_base;
+
+struct omap_mbox1_fifo {
+	unsigned long cmd;
+	unsigned long data;
+	unsigned long flag;
+};
+
+struct omap_mbox1_priv {
+	struct omap_mbox1_fifo tx_fifo;
+	struct omap_mbox1_fifo rx_fifo;
+};
+
+static inline int mbox_read_reg(unsigned int reg)
+{
+	return __raw_readw(mbox_base + reg);
+}
+
+static inline void mbox_write_reg(unsigned int val, unsigned int reg)
+{
+	__raw_writew(val, mbox_base + reg);
+}
+
+/* msg */
+static inline mbox_msg_t omap1_mbox_fifo_read(struct omap_mbox *mbox)
+{
+	struct omap_mbox1_fifo *fifo =
+		&((struct omap_mbox1_priv *)mbox->priv)->rx_fifo;
+	mbox_msg_t msg;
+
+	msg = mbox_read_reg(fifo->data);
+	msg |= ((mbox_msg_t) mbox_read_reg(fifo->cmd)) << 16;
+
+	return msg;
+}
+
+static inline void
+omap1_mbox_fifo_write(struct omap_mbox *mbox, mbox_msg_t msg)
+{
+	struct omap_mbox1_fifo *fifo =
+		&((struct omap_mbox1_priv *)mbox->priv)->tx_fifo;
+
+	mbox_write_reg(msg & 0xffff, fifo->data);
+	mbox_write_reg(msg >> 16, fifo->cmd);
+}
+
+static inline int omap1_mbox_fifo_empty(struct omap_mbox *mbox)
+{
+	return 0;
+}
+
+static inline int omap1_mbox_fifo_full(struct omap_mbox *mbox)
+{
+	struct omap_mbox1_fifo *fifo =
+		&((struct omap_mbox1_priv *)mbox->priv)->rx_fifo;
+
+	return (mbox_read_reg(fifo->flag));
+}
+
+/* irq */
+static inline void
+omap1_mbox_enable_irq(struct omap_mbox *mbox, omap_mbox_type_t irq)
+{
+	if (irq == IRQ_RX)
+		enable_irq(mbox->irq);
+}
+
+static inline void
+omap1_mbox_disable_irq(struct omap_mbox *mbox, omap_mbox_type_t irq)
+{
+	if (irq == IRQ_RX)
+		disable_irq(mbox->irq);
+}
+
+static inline int
+omap1_mbox_is_irq(struct omap_mbox *mbox, omap_mbox_type_t irq)
+{
+	if (irq == IRQ_TX)
+		return 0;
+	return 1;
+}
+
+static struct omap_mbox_ops omap1_mbox_ops = {
+	.type		= OMAP_MBOX_TYPE1,
+	.fifo_read	= omap1_mbox_fifo_read,
+	.fifo_write	= omap1_mbox_fifo_write,
+	.fifo_empty	= omap1_mbox_fifo_empty,
+	.fifo_full	= omap1_mbox_fifo_full,
+	.enable_irq	= omap1_mbox_enable_irq,
+	.disable_irq	= omap1_mbox_disable_irq,
+	.is_irq		= omap1_mbox_is_irq,
+};
+
+/* FIXME: the following struct should be created automatically by the user id */
+
+/* DSP */
+static struct omap_mbox1_priv omap1_mbox_dsp_priv = {
+	.tx_fifo = {
+		.cmd	= MAILBOX_ARM2DSP1b,
+		.data	= MAILBOX_ARM2DSP1,
+		.flag	= MAILBOX_ARM2DSP1_Flag,
+	},
+	.rx_fifo = {
+		.cmd	= MAILBOX_DSP2ARM1b,
+		.data	= MAILBOX_DSP2ARM1,
+		.flag	= MAILBOX_DSP2ARM1_Flag,
+	},
+};
+
+struct omap_mbox mbox_dsp_info = {
+	.name	= "dsp",
+	.ops	= &omap1_mbox_ops,
+	.priv	= &omap1_mbox_dsp_priv,
+};
+EXPORT_SYMBOL(mbox_dsp_info);
+
+static int __init omap1_mbox_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int ret = 0;
+
+	if (pdev->num_resources != 2) {
+		dev_err(&pdev->dev, "invalid number of resources: %d\n",
+			pdev->num_resources);
+		return -ENODEV;
+	}
+
+	/* MBOX base */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (unlikely(!res)) {
+		dev_err(&pdev->dev, "invalid mem resource\n");
+		return -ENODEV;
+	}
+	mbox_base = res->start;
+
+	/* DSP IRQ */
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (unlikely(!res)) {
+		dev_err(&pdev->dev, "invalid irq resource\n");
+		return -ENODEV;
+	}
+	mbox_dsp_info.irq = res->start;
+
+	ret = omap_mbox_register(&mbox_dsp_info);
+
+	return ret;
+}
+
+static int omap1_mbox_remove(struct platform_device *pdev)
+{
+	omap_mbox_unregister(&mbox_dsp_info);
+
+	return 0;
+}
+
+static struct platform_driver omap1_mbox_driver = {
+	.probe	= omap1_mbox_probe,
+	.remove	= omap1_mbox_remove,
+	.driver	= {
+		.name	= "mailbox",
+	},
+};
+
+static int __init omap1_mbox_init(void)
+{
+	return platform_driver_register(&omap1_mbox_driver);
+}
+
+static void __exit omap1_mbox_exit(void)
+{
+	platform_driver_unregister(&omap1_mbox_driver);
+}
+
+module_init(omap1_mbox_init);
+module_exit(omap1_mbox_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index aab97ccf1e6..7393109f5c3 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -9,6 +9,7 @@ config ARCH_OMAP2420
 	bool "OMAP2420 support"
 	depends on ARCH_OMAP24XX
 	select OMAP_DM_TIMER
+	select ARCH_OMAP_OTG
 
 comment "OMAP Board Type"
 	depends on ARCH_OMAP2
@@ -20,6 +21,7 @@ config MACH_OMAP_GENERIC
 config MACH_OMAP_H4
 	bool "OMAP 2420 H4 board"
 	depends on ARCH_OMAP2 && ARCH_OMAP24XX
+	select OMAP_DEBUG_LEDS if LEDS || LEDS_OMAP_DEBUG
 
 config MACH_OMAP_APOLLON
 	bool "OMAP 2420 Apollon board"
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index 1e7ed6d22ca..452193f0153 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -266,12 +266,26 @@ static struct platform_device h4_lcd_device = {
 	.id		= -1,
 };
 
+static struct resource h4_led_resources[] = {
+	[0] = {
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device h4_led_device = {
+	.name		= "omap_dbg_led",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(h4_led_resources),
+	.resource	= h4_led_resources,
+};
+
 static struct platform_device *h4_devices[] __initdata = {
 	&h4_smc91x_device,
 	&h4_flash_device,
 	&h4_irda_device,
 	&h4_kp_device,
 	&h4_lcd_device,
+	&h4_led_device,
 };
 
 static inline void __init h4_init_smc91x(void)
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index aa4322451e8..52ec2f2d636 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -24,7 +24,7 @@
 #include <asm/arch/mux.h>
 #include <asm/arch/gpio.h>
 
-#if 	defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
+#if	defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
 
 #define OMAP2_I2C_BASE2		0x48072000
 #define OMAP2_I2C_INT2		57
@@ -42,8 +42,8 @@ static struct resource i2c_resources2[] = {
 };
 
 static struct platform_device omap_i2c_device2 = {
-        .name           = "i2c_omap",
-        .id             = 2,
+	.name           = "i2c_omap",
+	.id             = 2,
 	.num_resources	= ARRAY_SIZE(i2c_resources2),
 	.resource	= i2c_resources2,
 };
@@ -66,6 +66,40 @@ static void omap_init_i2c(void) {}
 
 #endif
 
+#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
+#define OMAP2_MBOX_BASE		IO_ADDRESS(OMAP24XX_MAILBOX_BASE)
+
+static struct resource mbox_resources[] = {
+	{
+		.start		= OMAP2_MBOX_BASE,
+		.end		= OMAP2_MBOX_BASE + 0x11f,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= INT_24XX_MAIL_U0_MPU,
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= INT_24XX_MAIL_U3_MPU,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mbox_device = {
+	.name		= "mailbox",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(mbox_resources),
+	.resource	= mbox_resources,
+};
+
+static inline void omap_init_mbox(void)
+{
+	platform_device_register(&mbox_device);
+}
+#else
+static inline void omap_init_mbox(void) { }
+#endif
+
 #if defined(CONFIG_OMAP_STI)
 
 #define OMAP2_STI_BASE		IO_ADDRESS(0x48068000)
@@ -111,29 +145,45 @@ static inline void omap_init_sti(void) {}
 #define OMAP2_MCSPI1_BASE		0x48098000
 #define OMAP2_MCSPI2_BASE		0x4809a000
 
-/* FIXME: use resources instead */
-
 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
-	.base		= io_p2v(OMAP2_MCSPI1_BASE),
 	.num_cs		= 4,
 };
 
+static struct resource omap2_mcspi1_resources[] = {
+	{
+		.start		= OMAP2_MCSPI1_BASE,
+		.end		= OMAP2_MCSPI1_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
 struct platform_device omap2_mcspi1 = {
 	.name		= "omap2_mcspi",
 	.id		= 1,
+	.num_resources	= ARRAY_SIZE(omap2_mcspi1_resources),
+	.resource	= omap2_mcspi1_resources,
 	.dev		= {
 		.platform_data = &omap2_mcspi1_config,
 	},
 };
 
 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
-	.base		= io_p2v(OMAP2_MCSPI2_BASE),
 	.num_cs		= 2,
 };
 
+static struct resource omap2_mcspi2_resources[] = {
+	{
+		.start		= OMAP2_MCSPI2_BASE,
+		.end		= OMAP2_MCSPI2_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
 struct platform_device omap2_mcspi2 = {
 	.name		= "omap2_mcspi",
 	.id		= 2,
+	.num_resources	= ARRAY_SIZE(omap2_mcspi2_resources),
+	.resource	= omap2_mcspi2_resources,
 	.dev		= {
 		.platform_data = &omap2_mcspi2_config,
 	},
@@ -157,10 +207,10 @@ static int __init omap2_init_devices(void)
 	 * in alphabetical order so they're easier to sort through.
 	 */
 	omap_init_i2c();
+	omap_init_mbox();
 	omap_init_mcspi();
 	omap_init_sti();
 
 	return 0;
 }
 arch_initcall(omap2_init_devices);
-
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index d8f57824423..54c836a9845 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -246,14 +246,22 @@ static int gpmc_cs_mem_enabled(int cs)
 	return l & (1 << 6);
 }
 
-static void gpmc_cs_set_reserved(int cs, int reserved)
+int gpmc_cs_set_reserved(int cs, int reserved)
 {
+	if (cs > GPMC_CS_NUM)
+		return -ENODEV;
+
 	gpmc_cs_map &= ~(1 << cs);
 	gpmc_cs_map |= (reserved ? 1 : 0) << cs;
+
+	return 0;
 }
 
-static int gpmc_cs_reserved(int cs)
+int gpmc_cs_reserved(int cs)
 {
+	if (cs > GPMC_CS_NUM)
+		return -ENODEV;
+
 	return gpmc_cs_map & (1 << cs);
 }
 
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index a0728c33e5d..82dc70f6b77 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -27,6 +27,7 @@ extern void omap_sram_init(void);
 extern int omap2_clk_init(void);
 extern void omap2_check_revision(void);
 extern void gpmc_init(void);
+extern void omapfb_reserve_sdram(void);
 
 /*
  * The machine specific code may provide the extra mapping besides the
@@ -40,9 +41,21 @@ static struct map_desc omap2_io_desc[] __initdata = {
 		.type		= MT_DEVICE
 	},
 	{
-		.virtual	= L4_24XX_VIRT,
-		.pfn		= __phys_to_pfn(L4_24XX_PHYS),
-		.length		= L4_24XX_SIZE,
+		.virtual	= DSP_MEM_24XX_VIRT,
+		.pfn		= __phys_to_pfn(DSP_MEM_24XX_PHYS),
+		.length		= DSP_MEM_24XX_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= DSP_IPI_24XX_VIRT,
+		.pfn		= __phys_to_pfn(DSP_IPI_24XX_PHYS),
+		.length		= DSP_IPI_24XX_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= DSP_MMU_24XX_VIRT,
+		.pfn		= __phys_to_pfn(DSP_MMU_24XX_PHYS),
+		.length		= DSP_MMU_24XX_SIZE,
 		.type		= MT_DEVICE
 	}
 };
@@ -60,7 +73,7 @@ void __init omap2_map_common_io(void)
 
 	omap2_check_revision();
 	omap_sram_init();
-	omapfb_reserve_mem();
+	omapfb_reserve_sdram();
 }
 
 void __init omap2_init_common_hw(void)
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
new file mode 100644
index 00000000000..b03cd06e055
--- /dev/null
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -0,0 +1,318 @@
+/*
+ * Mailbox reservation modules for OMAP2
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ * Written by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
+ *        and  Paul Mundt <paul.mundt@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <asm/arch/mailbox.h>
+#include <asm/arch/irqs.h>
+#include <asm/io.h>
+
+#define MAILBOX_REVISION		0x00
+#define MAILBOX_SYSCONFIG		0x10
+#define MAILBOX_SYSSTATUS		0x14
+#define MAILBOX_MESSAGE_0		0x40
+#define MAILBOX_MESSAGE_1		0x44
+#define MAILBOX_MESSAGE_2		0x48
+#define MAILBOX_MESSAGE_3		0x4c
+#define MAILBOX_MESSAGE_4		0x50
+#define MAILBOX_MESSAGE_5		0x54
+#define MAILBOX_FIFOSTATUS_0		0x80
+#define MAILBOX_FIFOSTATUS_1		0x84
+#define MAILBOX_FIFOSTATUS_2		0x88
+#define MAILBOX_FIFOSTATUS_3		0x8c
+#define MAILBOX_FIFOSTATUS_4		0x90
+#define MAILBOX_FIFOSTATUS_5		0x94
+#define MAILBOX_MSGSTATUS_0		0xc0
+#define MAILBOX_MSGSTATUS_1		0xc4
+#define MAILBOX_MSGSTATUS_2		0xc8
+#define MAILBOX_MSGSTATUS_3		0xcc
+#define MAILBOX_MSGSTATUS_4		0xd0
+#define MAILBOX_MSGSTATUS_5		0xd4
+#define MAILBOX_IRQSTATUS_0		0x100
+#define MAILBOX_IRQENABLE_0		0x104
+#define MAILBOX_IRQSTATUS_1		0x108
+#define MAILBOX_IRQENABLE_1		0x10c
+#define MAILBOX_IRQSTATUS_2		0x110
+#define MAILBOX_IRQENABLE_2		0x114
+#define MAILBOX_IRQSTATUS_3		0x118
+#define MAILBOX_IRQENABLE_3		0x11c
+
+static unsigned long mbox_base;
+
+#define MAILBOX_IRQ_NOTFULL(n)		(1 << (2 * (n) + 1))
+#define MAILBOX_IRQ_NEWMSG(n)		(1 << (2 * (n)))
+
+struct omap_mbox2_fifo {
+	unsigned long msg;
+	unsigned long fifo_stat;
+	unsigned long msg_stat;
+};
+
+struct omap_mbox2_priv {
+	struct omap_mbox2_fifo tx_fifo;
+	struct omap_mbox2_fifo rx_fifo;
+	unsigned long irqenable;
+	unsigned long irqstatus;
+	u32 newmsg_bit;
+	u32 notfull_bit;
+};
+
+static struct clk *mbox_ick_handle;
+
+static inline unsigned int mbox_read_reg(unsigned int reg)
+{
+	return __raw_readl(mbox_base + reg);
+}
+
+static inline void mbox_write_reg(unsigned int val, unsigned int reg)
+{
+	__raw_writel(val, mbox_base + reg);
+}
+
+/* Mailbox H/W preparations */
+static inline int omap2_mbox_startup(struct omap_mbox *mbox)
+{
+	unsigned int l;
+
+	mbox_ick_handle = clk_get(NULL, "mailboxes_ick");
+	if (IS_ERR(mbox_ick_handle)) {
+		printk("Could not get mailboxes_ick\n");
+		return -ENODEV;
+	}
+	clk_enable(mbox_ick_handle);
+
+	/* set smart-idle & autoidle */
+	l = mbox_read_reg(MAILBOX_SYSCONFIG);
+	l |= 0x00000011;
+	mbox_write_reg(l, MAILBOX_SYSCONFIG);
+
+	return 0;
+}
+
+static inline void omap2_mbox_shutdown(struct omap_mbox *mbox)
+{
+	clk_disable(mbox_ick_handle);
+	clk_put(mbox_ick_handle);
+}
+
+/* Mailbox FIFO handle functions */
+static inline mbox_msg_t omap2_mbox_fifo_read(struct omap_mbox *mbox)
+{
+	struct omap_mbox2_fifo *fifo =
+		&((struct omap_mbox2_priv *)mbox->priv)->rx_fifo;
+	return (mbox_msg_t) mbox_read_reg(fifo->msg);
+}
+
+static inline void omap2_mbox_fifo_write(struct omap_mbox *mbox, mbox_msg_t msg)
+{
+	struct omap_mbox2_fifo *fifo =
+		&((struct omap_mbox2_priv *)mbox->priv)->tx_fifo;
+	mbox_write_reg(msg, fifo->msg);
+}
+
+static inline int omap2_mbox_fifo_empty(struct omap_mbox *mbox)
+{
+	struct omap_mbox2_fifo *fifo =
+		&((struct omap_mbox2_priv *)mbox->priv)->rx_fifo;
+	return (mbox_read_reg(fifo->msg_stat) == 0);
+}
+
+static inline int omap2_mbox_fifo_full(struct omap_mbox *mbox)
+{
+	struct omap_mbox2_fifo *fifo =
+		&((struct omap_mbox2_priv *)mbox->priv)->tx_fifo;
+	return (mbox_read_reg(fifo->fifo_stat));
+}
+
+/* Mailbox IRQ handle functions */
+static inline void omap2_mbox_enable_irq(struct omap_mbox *mbox,
+		omap_mbox_type_t irq)
+{
+	struct omap_mbox2_priv *p = (struct omap_mbox2_priv *)mbox->priv;
+	u32 l, bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
+
+	l = mbox_read_reg(p->irqenable);
+	l |= bit;
+	mbox_write_reg(l, p->irqenable);
+}
+
+static inline void omap2_mbox_disable_irq(struct omap_mbox *mbox,
+		omap_mbox_type_t irq)
+{
+	struct omap_mbox2_priv *p = (struct omap_mbox2_priv *)mbox->priv;
+	u32 l, bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
+
+	l = mbox_read_reg(p->irqenable);
+	l &= ~bit;
+	mbox_write_reg(l, p->irqenable);
+}
+
+static inline void omap2_mbox_ack_irq(struct omap_mbox *mbox,
+		omap_mbox_type_t irq)
+{
+	struct omap_mbox2_priv *p = (struct omap_mbox2_priv *)mbox->priv;
+	u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
+
+	mbox_write_reg(bit, p->irqstatus);
+}
+
+static inline int omap2_mbox_is_irq(struct omap_mbox *mbox,
+		omap_mbox_type_t irq)
+{
+	struct omap_mbox2_priv *p = (struct omap_mbox2_priv *)mbox->priv;
+	u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
+	u32 enable = mbox_read_reg(p->irqenable);
+	u32 status = mbox_read_reg(p->irqstatus);
+
+	return (enable & status & bit);
+}
+
+static struct omap_mbox_ops omap2_mbox_ops = {
+	.type		= OMAP_MBOX_TYPE2,
+	.startup	= omap2_mbox_startup,
+	.shutdown	= omap2_mbox_shutdown,
+	.fifo_read	= omap2_mbox_fifo_read,
+	.fifo_write	= omap2_mbox_fifo_write,
+	.fifo_empty	= omap2_mbox_fifo_empty,
+	.fifo_full	= omap2_mbox_fifo_full,
+	.enable_irq	= omap2_mbox_enable_irq,
+	.disable_irq	= omap2_mbox_disable_irq,
+	.ack_irq	= omap2_mbox_ack_irq,
+	.is_irq		= omap2_mbox_is_irq,
+};
+
+/*
+ * MAILBOX 0: ARM -> DSP,
+ * MAILBOX 1: ARM <- DSP.
+ * MAILBOX 2: ARM -> IVA,
+ * MAILBOX 3: ARM <- IVA.
+ */
+
+/* FIXME: the following structs should be filled automatically by the user id */
+
+/* DSP */
+static struct omap_mbox2_priv omap2_mbox_dsp_priv = {
+	.tx_fifo = {
+		.msg		= MAILBOX_MESSAGE_0,
+		.fifo_stat	= MAILBOX_FIFOSTATUS_0,
+	},
+	.rx_fifo = {
+		.msg		= MAILBOX_MESSAGE_1,
+		.msg_stat	= MAILBOX_MSGSTATUS_1,
+	},
+	.irqenable	= MAILBOX_IRQENABLE_0,
+	.irqstatus	= MAILBOX_IRQSTATUS_0,
+	.notfull_bit	= MAILBOX_IRQ_NOTFULL(0),
+	.newmsg_bit	= MAILBOX_IRQ_NEWMSG(1),
+};
+
+struct omap_mbox mbox_dsp_info = {
+	.name	= "dsp",
+	.ops	= &omap2_mbox_ops,
+	.priv	= &omap2_mbox_dsp_priv,
+};
+EXPORT_SYMBOL(mbox_dsp_info);
+
+/* IVA */
+static struct omap_mbox2_priv omap2_mbox_iva_priv = {
+	.tx_fifo = {
+		.msg		= MAILBOX_MESSAGE_2,
+		.fifo_stat	= MAILBOX_FIFOSTATUS_2,
+	},
+	.rx_fifo = {
+		.msg		= MAILBOX_MESSAGE_3,
+		.msg_stat	= MAILBOX_MSGSTATUS_3,
+	},
+	.irqenable	= MAILBOX_IRQENABLE_3,
+	.irqstatus	= MAILBOX_IRQSTATUS_3,
+	.notfull_bit	= MAILBOX_IRQ_NOTFULL(2),
+	.newmsg_bit	= MAILBOX_IRQ_NEWMSG(3),
+};
+
+static struct omap_mbox mbox_iva_info = {
+	.name	= "iva",
+	.ops	= &omap2_mbox_ops,
+	.priv	= &omap2_mbox_iva_priv,
+};
+
+static int __init omap2_mbox_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int ret = 0;
+
+	if (pdev->num_resources != 3) {
+		dev_err(&pdev->dev, "invalid number of resources: %d\n",
+			pdev->num_resources);
+		return -ENODEV;
+	}
+
+	/* MBOX base */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (unlikely(!res)) {
+		dev_err(&pdev->dev, "invalid mem resource\n");
+		return -ENODEV;
+	}
+	mbox_base = res->start;
+
+	/* DSP IRQ */
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (unlikely(!res)) {
+		dev_err(&pdev->dev, "invalid irq resource\n");
+		return -ENODEV;
+	}
+	mbox_dsp_info.irq = res->start;
+
+	ret = omap_mbox_register(&mbox_dsp_info);
+
+	/* IVA IRQ */
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
+	if (unlikely(!res)) {
+		dev_err(&pdev->dev, "invalid irq resource\n");
+		return -ENODEV;
+	}
+	mbox_iva_info.irq = res->start;
+
+	ret = omap_mbox_register(&mbox_iva_info);
+
+	return ret;
+}
+
+static int omap2_mbox_remove(struct platform_device *pdev)
+{
+	omap_mbox_unregister(&mbox_dsp_info);
+	return 0;
+}
+
+static struct platform_driver omap2_mbox_driver = {
+	.probe = omap2_mbox_probe,
+	.remove = omap2_mbox_remove,
+	.driver = {
+		.name = "mailbox",
+	},
+};
+
+static int __init omap2_mbox_init(void)
+{
+	return platform_driver_register(&omap2_mbox_driver);
+}
+
+static void __exit omap2_mbox_exit(void)
+{
+	platform_driver_unregister(&omap2_mbox_driver);
+}
+
+module_init(omap2_mbox_init);
+module_exit(omap2_mbox_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/arch/arm/mach-s3c2410/sleep.S b/arch/arm/mach-s3c2410/sleep.S
index 637aaba6539..d1eeed2ad47 100644
--- a/arch/arm/mach-s3c2410/sleep.S
+++ b/arch/arm/mach-s3c2410/sleep.S
@@ -1,4 +1,4 @@
-/* linux/arch/arm/mach-s3c2410/s3c2410-sleep.S
+/* linux/arch/arm/mach-s3c2410/sleep.S
  *
  * Copyright (c) 2004 Simtec Electronics
  *	Ben Dooks <ben@simtec.co.uk>
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index e684e9b3821..b81391a4e37 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -366,6 +366,19 @@ config CPU_32v6K
 	  enabled will not boot on processors with do not support these
 	  instructions.
 
+# ARMv7
+config CPU_V7
+	bool "Support ARM V7 processor"
+	depends on ARCH_INTEGRATOR
+	select CPU_32v6K
+	select CPU_32v7
+	select CPU_ABRT_EV7
+	select CPU_CACHE_V7
+	select CPU_CACHE_VIPT
+	select CPU_CP15_MMU
+	select CPU_COPY_V6 if MMU
+	select CPU_TLB_V6 if MMU
+
 # Figure out what processor architecture version we should be using.
 # This defines the compiler instruction set which depends on the machine type.
 config CPU_32v3
@@ -391,6 +404,9 @@ config CPU_32v5
 config CPU_32v6
 	bool
 
+config CPU_32v7
+	bool
+
 # The abort model
 config CPU_ABRT_NOMMU
 	bool
@@ -413,6 +429,9 @@ config CPU_ABRT_EV5TJ
 config CPU_ABRT_EV6
 	bool
 
+config CPU_ABRT_EV7
+	bool
+
 # The cache model
 config CPU_CACHE_V3
 	bool
@@ -429,6 +448,9 @@ config CPU_CACHE_V4WB
 config CPU_CACHE_V6
 	bool
 
+config CPU_CACHE_V7
+	bool
+
 config CPU_CACHE_VIVT
 	bool
 
@@ -503,7 +525,7 @@ comment "Processor Features"
 
 config ARM_THUMB
 	bool "Support Thumb user binaries"
-	depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6
+	depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6 || CPU_V7
 	default y
 	help
 	  Say Y if you want to include kernel support for running user space
@@ -578,9 +600,15 @@ config CPU_CACHE_ROUND_ROBIN
 	  Say Y here to use the predictable round-robin cache replacement
 	  policy.  Unless you specifically require this or are unsure, say N.
 
+config CPU_L2CACHE_DISABLE
+	bool "Disable level 2 cache"
+	depends on CPU_V7
+	help
+	  Say Y here to disable the level 2 cache.  If unsure, say N.
+
 config CPU_BPREDICT_DISABLE
 	bool "Disable branch prediction"
-	depends on CPU_ARM1020 || CPU_V6 || CPU_XSC3
+	depends on CPU_ARM1020 || CPU_V6 || CPU_XSC3 || CPU_V7
 	help
 	  Say Y here to disable branch prediction.  If unsure, say N.
 
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index 2f8b9594777..b5bd335ff14 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -24,12 +24,14 @@ obj-$(CONFIG_CPU_ABRT_LV4T)	+= abort-lv4t.o
 obj-$(CONFIG_CPU_ABRT_EV5T)	+= abort-ev5t.o
 obj-$(CONFIG_CPU_ABRT_EV5TJ)	+= abort-ev5tj.o
 obj-$(CONFIG_CPU_ABRT_EV6)	+= abort-ev6.o
+obj-$(CONFIG_CPU_ABRT_EV7)	+= abort-ev7.o
 
 obj-$(CONFIG_CPU_CACHE_V3)	+= cache-v3.o
 obj-$(CONFIG_CPU_CACHE_V4)	+= cache-v4.o
 obj-$(CONFIG_CPU_CACHE_V4WT)	+= cache-v4wt.o
 obj-$(CONFIG_CPU_CACHE_V4WB)	+= cache-v4wb.o
 obj-$(CONFIG_CPU_CACHE_V6)	+= cache-v6.o
+obj-$(CONFIG_CPU_CACHE_V7)	+= cache-v7.o
 
 obj-$(CONFIG_CPU_COPY_V3)	+= copypage-v3.o
 obj-$(CONFIG_CPU_COPY_V4WT)	+= copypage-v4wt.o
@@ -66,5 +68,6 @@ obj-$(CONFIG_CPU_SA1100)	+= proc-sa1100.o
 obj-$(CONFIG_CPU_XSCALE)	+= proc-xscale.o
 obj-$(CONFIG_CPU_XSC3)		+= proc-xsc3.o
 obj-$(CONFIG_CPU_V6)		+= proc-v6.o
+obj-$(CONFIG_CPU_V7)		+= proc-v7.o
 
 obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
diff --git a/arch/arm/mm/abort-ev7.S b/arch/arm/mm/abort-ev7.S
new file mode 100644
index 00000000000..eb90bce38e1
--- /dev/null
+++ b/arch/arm/mm/abort-ev7.S
@@ -0,0 +1,32 @@
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+/*
+ * Function: v7_early_abort
+ *
+ * Params  : r2 = address of aborted instruction
+ *         : r3 = saved SPSR
+ *
+ * Returns : r0 = address of abort
+ *	   : r1 = FSR, bit 11 = write
+ *	   : r2-r8 = corrupted
+ *	   : r9 = preserved
+ *	   : sp = pointer to registers
+ *
+ * Purpose : obtain information about current aborted instruction.
+ */
+	.align	5
+ENTRY(v7_early_abort)
+	/*
+	 * The effect of data aborts on on the exclusive access monitor are
+	 * UNPREDICTABLE. Do a CLREX to clear the state
+	 */
+	clrex
+
+	mrc	p15, 0, r1, c5, c0, 0		@ get FSR
+	mrc	p15, 0, r0, c6, c0, 0		@ get FAR
+
+	/*
+	 * V6 code adjusts the returned DFSR.
+	 * New designs should not need to patch up faults.
+	 */
+	mov	pc, lr
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
new file mode 100644
index 00000000000..35ffc4d9599
--- /dev/null
+++ b/arch/arm/mm/cache-v7.S
@@ -0,0 +1,253 @@
+/*
+ *  linux/arch/arm/mm/cache-v7.S
+ *
+ *  Copyright (C) 2001 Deep Blue Solutions Ltd.
+ *  Copyright (C) 2005 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  This is the "shell" of the ARMv7 processor support.
+ */
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/assembler.h>
+
+#include "proc-macros.S"
+
+/*
+ *	v7_flush_dcache_all()
+ *
+ *	Flush the whole D-cache.
+ *
+ *	Corrupted registers: r0-r5, r7, r9-r11
+ *
+ *	- mm    - mm_struct describing address space
+ */
+ENTRY(v7_flush_dcache_all)
+	mrc	p15, 1, r0, c0, c0, 1		@ read clidr
+	ands	r3, r0, #0x7000000		@ extract loc from clidr
+	mov	r3, r3, lsr #23			@ left align loc bit field
+	beq	finished			@ if loc is 0, then no need to clean
+	mov	r10, #0				@ start clean at cache level 0
+loop1:
+	add	r2, r10, r10, lsr #1		@ work out 3x current cache level
+	mov	r1, r0, lsr r2			@ extract cache type bits from clidr
+	and	r1, r1, #7			@ mask of the bits for current cache only
+	cmp	r1, #2				@ see what cache we have at this level
+	blt	skip				@ skip if no cache, or just i-cache
+	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
+	isb					@ isb to sych the new cssr&csidr
+	mrc	p15, 1, r1, c0, c0, 0		@ read the new csidr
+	and	r2, r1, #7			@ extract the length of the cache lines
+	add	r2, r2, #4			@ add 4 (line length offset)
+	ldr	r4, =0x3ff
+	ands	r4, r4, r1, lsr #3		@ find maximum number on the way size
+	clz	r5, r4				@ find bit position of way size increment
+	ldr	r7, =0x7fff
+	ands	r7, r7, r1, lsr #13		@ extract max number of the index size
+loop2:
+	mov	r9, r4				@ create working copy of max way size
+loop3:
+	orr	r11, r10, r9, lsl r5		@ factor way and cache number into r11
+	orr	r11, r11, r7, lsl r2		@ factor index number into r11
+	mcr	p15, 0, r11, c7, c14, 2		@ clean & invalidate by set/way
+	subs	r9, r9, #1			@ decrement the way
+	bge	loop3
+	subs	r7, r7, #1			@ decrement the index
+	bge	loop2
+skip:
+	add	r10, r10, #2			@ increment cache number
+	cmp	r3, r10
+	bgt	loop1
+finished:
+	mov	r10, #0				@ swith back to cache level 0
+	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
+	isb
+	mov	pc, lr
+
+/*
+ *	v7_flush_cache_all()
+ *
+ *	Flush the entire cache system.
+ *  The data cache flush is now achieved using atomic clean / invalidates
+ *  working outwards from L1 cache. This is done using Set/Way based cache
+ *  maintainance instructions.
+ *  The instruction cache can still be invalidated back to the point of
+ *  unification in a single instruction.
+ *
+ */
+ENTRY(v7_flush_kern_cache_all)
+	stmfd	sp!, {r4-r5, r7, r9-r11, lr}
+	bl	v7_flush_dcache_all
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c5, 0		@ I+BTB cache invalidate
+	ldmfd	sp!, {r4-r5, r7, r9-r11, lr}
+	mov	pc, lr
+
+/*
+ *	v7_flush_cache_all()
+ *
+ *	Flush all TLB entries in a particular address space
+ *
+ *	- mm    - mm_struct describing address space
+ */
+ENTRY(v7_flush_user_cache_all)
+	/*FALLTHROUGH*/
+
+/*
+ *	v7_flush_cache_range(start, end, flags)
+ *
+ *	Flush a range of TLB entries in the specified address space.
+ *
+ *	- start - start address (may not be aligned)
+ *	- end   - end address (exclusive, may not be aligned)
+ *	- flags	- vm_area_struct flags describing address space
+ *
+ *	It is assumed that:
+ *	- we have a VIPT cache.
+ */
+ENTRY(v7_flush_user_cache_range)
+	mov	pc, lr
+
+/*
+ *	v7_coherent_kern_range(start,end)
+ *
+ *	Ensure that the I and D caches are coherent within specified
+ *	region.  This is typically used when code has been written to
+ *	a memory region, and will be executed.
+ *
+ *	- start   - virtual start address of region
+ *	- end     - virtual end address of region
+ *
+ *	It is assumed that:
+ *	- the Icache does not read data from the write buffer
+ */
+ENTRY(v7_coherent_kern_range)
+	/* FALLTHROUGH */
+
+/*
+ *	v7_coherent_user_range(start,end)
+ *
+ *	Ensure that the I and D caches are coherent within specified
+ *	region.  This is typically used when code has been written to
+ *	a memory region, and will be executed.
+ *
+ *	- start   - virtual start address of region
+ *	- end     - virtual end address of region
+ *
+ *	It is assumed that:
+ *	- the Icache does not read data from the write buffer
+ */
+ENTRY(v7_coherent_user_range)
+	dcache_line_size r2, r3
+	sub	r3, r2, #1
+	bic	r0, r0, r3
+1:	mcr	p15, 0, r0, c7, c11, 1		@ clean D line to the point of unification
+	dsb
+	mcr	p15, 0, r0, c7, c5, 1		@ invalidate I line
+	add	r0, r0, r2
+	cmp	r0, r1
+	blo	1b
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c5, 6		@ invalidate BTB
+	dsb
+	isb
+	mov	pc, lr
+
+/*
+ *	v7_flush_kern_dcache_page(kaddr)
+ *
+ *	Ensure that the data held in the page kaddr is written back
+ *	to the page in question.
+ *
+ *	- kaddr   - kernel address (guaranteed to be page aligned)
+ */
+ENTRY(v7_flush_kern_dcache_page)
+	dcache_line_size r2, r3
+	add	r1, r0, #PAGE_SZ
+1:
+	mcr	p15, 0, r0, c7, c14, 1		@ clean & invalidate D line / unified line
+	add	r0, r0, r2
+	cmp	r0, r1
+	blo	1b
+	dsb
+	mov	pc, lr
+
+/*
+ *	v7_dma_inv_range(start,end)
+ *
+ *	Invalidate the data cache within the specified region; we will
+ *	be performing a DMA operation in this region and we want to
+ *	purge old data in the cache.
+ *
+ *	- start   - virtual start address of region
+ *	- end     - virtual end address of region
+ */
+ENTRY(v7_dma_inv_range)
+	dcache_line_size r2, r3
+	sub	r3, r2, #1
+	tst	r0, r3
+	bic	r0, r0, r3
+	mcrne	p15, 0, r0, c7, c14, 1		@ clean & invalidate D / U line
+
+	tst	r1, r3
+	bic	r1, r1, r3
+	mcrne	p15, 0, r1, c7, c14, 1		@ clean & invalidate D / U line
+1:
+	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D / U line
+	add	r0, r0, r2
+	cmp	r0, r1
+	blo	1b
+	dsb
+	mov	pc, lr
+
+/*
+ *	v7_dma_clean_range(start,end)
+ *	- start   - virtual start address of region
+ *	- end     - virtual end address of region
+ */
+ENTRY(v7_dma_clean_range)
+	dcache_line_size r2, r3
+	sub	r3, r2, #1
+	bic	r0, r0, r3
+1:
+	mcr	p15, 0, r0, c7, c10, 1		@ clean D / U line
+	add	r0, r0, r2
+	cmp	r0, r1
+	blo	1b
+	dsb
+	mov	pc, lr
+
+/*
+ *	v7_dma_flush_range(start,end)
+ *	- start   - virtual start address of region
+ *	- end     - virtual end address of region
+ */
+ENTRY(v7_dma_flush_range)
+	dcache_line_size r2, r3
+	sub	r3, r2, #1
+	bic	r0, r0, r3
+1:
+	mcr	p15, 0, r0, c7, c14, 1		@ clean & invalidate D / U line
+	add	r0, r0, r2
+	cmp	r0, r1
+	blo	1b
+	dsb
+	mov	pc, lr
+
+	__INITDATA
+
+	.type	v7_cache_fns, #object
+ENTRY(v7_cache_fns)
+	.long	v7_flush_kern_cache_all
+	.long	v7_flush_user_cache_all
+	.long	v7_flush_user_cache_range
+	.long	v7_coherent_kern_range
+	.long	v7_coherent_user_range
+	.long	v7_flush_kern_dcache_page
+	.long	v7_dma_inv_range
+	.long	v7_dma_clean_range
+	.long	v7_dma_flush_range
+	.size	v7_cache_fns, . - v7_cache_fns
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
index 9da43a0fdcd..fc84fcc7438 100644
--- a/arch/arm/mm/context.c
+++ b/arch/arm/mm/context.c
@@ -14,7 +14,8 @@
 #include <asm/mmu_context.h>
 #include <asm/tlbflush.h>
 
-unsigned int cpu_last_asid = { 1 << ASID_BITS };
+static DEFINE_SPINLOCK(cpu_asid_lock);
+unsigned int cpu_last_asid = ASID_FIRST_VERSION;
 
 /*
  * We fork()ed a process, and we need a new context for the child
@@ -31,15 +32,16 @@ void __new_context(struct mm_struct *mm)
 {
 	unsigned int asid;
 
+	spin_lock(&cpu_asid_lock);
 	asid = ++cpu_last_asid;
 	if (asid == 0)
-		asid = cpu_last_asid = 1 << ASID_BITS;
+		asid = cpu_last_asid = ASID_FIRST_VERSION;
 
 	/*
 	 * If we've used up all our ASIDs, we need
 	 * to start a new version and flush the TLB.
 	 */
-	if ((asid & ~ASID_MASK) == 0) {
+	if (unlikely((asid & ~ASID_MASK) == 0)) {
 		asid = ++cpu_last_asid;
 		/* set the reserved ASID before flushing the TLB */
 		asm("mcr	p15, 0, %0, c13, c0, 1	@ set reserved context ID\n"
@@ -47,7 +49,16 @@ void __new_context(struct mm_struct *mm)
 		    : "r" (0));
 		isb();
 		flush_tlb_all();
+		if (icache_is_vivt_asid_tagged()) {
+			asm("mcr	p15, 0, %0, c7, c5, 0	@ invalidate I-cache\n"
+			    "mcr	p15, 0, %0, c7, c5, 6	@ flush BTAC/BTB\n"
+			    :
+			    : "r" (0));
+			dsb();
+		}
 	}
+	spin_unlock(&cpu_asid_lock);
 
+	mm->cpu_vm_mask = cpumask_of_cpu(smp_processor_id());
 	mm->context.id = asid;
 }
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index 9e2c89eb211..b13150052a7 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -59,3 +59,15 @@
 	.word	\ucset
 #endif
 	.endm
+
+/*
+ * cache_line_size - get the cache line size from the CSIDR register
+ * (available on ARMv7+). It assumes that the CSSR register was configured
+ * to access the L1 data cache CSIDR.
+ */
+	.macro	dcache_line_size, reg, tmp
+	mrc	p15, 1, \tmp, c0, c0, 0		@ read CSIDR
+	and	\tmp, \tmp, #7			@ cache line size encoding
+	mov	\reg, #16			@ size offset
+	mov	\reg, \reg, lsl \tmp		@ actual cache line size
+	.endm
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
new file mode 100644
index 00000000000..dd823dd4a37
--- /dev/null
+++ b/arch/arm/mm/proc-v7.S
@@ -0,0 +1,262 @@
+/*
+ *  linux/arch/arm/mm/proc-v7.S
+ *
+ *  Copyright (C) 2001 Deep Blue Solutions Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  This is the "shell" of the ARMv7 processor support.
+ */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include <asm/asm-offsets.h>
+#include <asm/elf.h>
+#include <asm/pgtable-hwdef.h>
+#include <asm/pgtable.h>
+
+#include "proc-macros.S"
+
+#define TTB_C		(1 << 0)
+#define TTB_S		(1 << 1)
+#define TTB_RGN_OC_WT	(2 << 3)
+#define TTB_RGN_OC_WB	(3 << 3)
+
+ENTRY(cpu_v7_proc_init)
+	mov	pc, lr
+
+ENTRY(cpu_v7_proc_fin)
+	mov	pc, lr
+
+/*
+ *	cpu_v7_reset(loc)
+ *
+ *	Perform a soft reset of the system.  Put the CPU into the
+ *	same state as it would be if it had been reset, and branch
+ *	to what would be the reset vector.
+ *
+ *	- loc   - location to jump to for soft reset
+ *
+ *	It is assumed that:
+ */
+	.align	5
+ENTRY(cpu_v7_reset)
+	mov	pc, r0
+
+/*
+ *	cpu_v7_do_idle()
+ *
+ *	Idle the processor (eg, wait for interrupt).
+ *
+ *	IRQs are already disabled.
+ */
+ENTRY(cpu_v7_do_idle)
+	.long	0xe320f003			@ ARM V7 WFI instruction
+	mov	pc, lr
+
+ENTRY(cpu_v7_dcache_clean_area)
+#ifndef TLB_CAN_READ_FROM_L1_CACHE
+	dcache_line_size r2, r3
+1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+	add	r0, r0, r2
+	subs	r1, r1, r2
+	bhi	1b
+	dsb
+#endif
+	mov	pc, lr
+
+/*
+ *	cpu_v7_switch_mm(pgd_phys, tsk)
+ *
+ *	Set the translation table base pointer to be pgd_phys
+ *
+ *	- pgd_phys - physical address of new TTB
+ *
+ *	It is assumed that:
+ *	- we are not using split page tables
+ */
+ENTRY(cpu_v7_switch_mm)
+	mov	r2, #0
+	ldr	r1, [r1, #MM_CONTEXT_ID]	@ get mm->context.id
+	orr	r0, r0, #TTB_RGN_OC_WB		@ mark PTWs outer cacheable, WB
+	mcr	p15, 0, r2, c13, c0, 1		@ set reserved context ID
+	isb
+1:	mcr	p15, 0, r0, c2, c0, 0		@ set TTB 0
+	isb
+	mcr	p15, 0, r1, c13, c0, 1		@ set context ID
+	isb
+	mov	pc, lr
+
+/*
+ *	cpu_v7_set_pte_ext(ptep, pte)
+ *
+ *	Set a level 2 translation table entry.
+ *
+ *	- ptep  - pointer to level 2 translation table entry
+ *		  (hardware version is stored at -1024 bytes)
+ *	- pte   - PTE value to store
+ *	- ext	- value for extended PTE bits
+ *
+ *	Permissions:
+ *	  YUWD  APX AP1 AP0	SVC	User
+ *	  0xxx   0   0   0	no acc	no acc
+ *	  100x   1   0   1	r/o	no acc
+ *	  10x0   1   0   1	r/o	no acc
+ *	  1011   0   0   1	r/w	no acc
+ *	  110x   0   1   0	r/w	r/o
+ *	  11x0   0   1   0	r/w	r/o
+ *	  1111   0   1   1	r/w	r/w
+ */
+ENTRY(cpu_v7_set_pte_ext)
+	str	r1, [r0], #-2048		@ linux version
+
+	bic	r3, r1, #0x000003f0
+	bic	r3, r3, #0x00000003
+	orr	r3, r3, r2
+	orr	r3, r3, #PTE_EXT_AP0 | 2
+
+	tst	r1, #L_PTE_WRITE
+	tstne	r1, #L_PTE_DIRTY
+	orreq	r3, r3, #PTE_EXT_APX
+
+	tst	r1, #L_PTE_USER
+	orrne	r3, r3, #PTE_EXT_AP1
+	tstne	r3, #PTE_EXT_APX
+	bicne	r3, r3, #PTE_EXT_APX | PTE_EXT_AP0
+
+	tst	r1, #L_PTE_YOUNG
+	biceq	r3, r3, #PTE_EXT_APX | PTE_EXT_AP_MASK
+
+	tst	r1, #L_PTE_EXEC
+	orreq	r3, r3, #PTE_EXT_XN
+
+	tst	r1, #L_PTE_PRESENT
+	moveq	r3, #0
+
+	str	r3, [r0]
+	mcr	p15, 0, r0, c7, c10, 1		@ flush_pte
+	mov	pc, lr
+
+cpu_v7_name:
+	.ascii	"ARMv7 Processor"
+	.align
+
+	.section ".text.init", #alloc, #execinstr
+
+/*
+ *	__v7_setup
+ *
+ *	Initialise TLB, Caches, and MMU state ready to switch the MMU
+ *	on.  Return in r0 the new CP15 C1 control register setting.
+ *
+ *	We automatically detect if we have a Harvard cache, and use the
+ *	Harvard cache control instructions insead of the unified cache
+ *	control instructions.
+ *
+ *	This should be able to cover all ARMv7 cores.
+ *
+ *	It is assumed that:
+ *	- cache type register is implemented
+ */
+__v7_setup:
+	adr	r12, __v7_setup_stack		@ the local stack
+	stmia	r12, {r0-r5, r7, r9, r11, lr}
+	bl	v7_flush_dcache_all
+	ldmia	r12, {r0-r5, r7, r9, r11, lr}
+	mov	r10, #0
+#ifdef HARVARD_CACHE
+	mcr	p15, 0, r10, c7, c5, 0		@ I+BTB cache invalidate
+#endif
+	dsb
+	mcr	p15, 0, r10, c8, c7, 0		@ invalidate I + D TLBs
+	mcr	p15, 0, r10, c2, c0, 2		@ TTB control register
+	orr	r4, r4, #TTB_RGN_OC_WB		@ mark PTWs outer cacheable, WB
+	mcr	p15, 0, r4, c2, c0, 0		@ load TTB0
+	mcr	p15, 0, r4, c2, c0, 1		@ load TTB1
+	mov	r10, #0x1f			@ domains 0, 1 = manager
+	mcr	p15, 0, r10, c3, c0, 0		@ load domain access register
+#ifndef CONFIG_CPU_L2CACHE_DISABLE
+	@ L2 cache configuration in the L2 aux control register
+	mrc	p15, 1, r10, c9, c0, 2
+	bic	r10, r10, #(1 << 16)		@ L2 outer cache
+	mcr	p15, 1, r10, c9, c0, 2
+	@ L2 cache is enabled in the aux control register
+	mrc	p15, 0, r10, c1, c0, 1
+	orr	r10, r10, #2
+	mcr	p15, 0, r10, c1, c0, 1
+#endif
+	mrc	p15, 0, r0, c1, c0, 0		@ read control register
+	ldr	r10, cr1_clear			@ get mask for bits to clear
+	bic	r0, r0, r10			@ clear bits them
+	ldr	r10, cr1_set			@ get mask for bits to set
+	orr	r0, r0, r10			@ set them
+	mov	pc, lr				@ return to head.S:__ret
+
+	/*
+	 *         V X F   I D LR
+	 * .... ...E PUI. .T.T 4RVI ZFRS BLDP WCAM
+	 * rrrr rrrx xxx0 0101 xxxx xxxx x111 xxxx < forced
+	 *         0 110       0011 1.00 .111 1101 < we want
+	 */
+	.type	cr1_clear, #object
+	.type	cr1_set, #object
+cr1_clear:
+	.word	0x0120c302
+cr1_set:
+	.word	0x00c0387d
+
+__v7_setup_stack:
+	.space	4 * 11				@ 11 registers
+
+	.type	v7_processor_functions, #object
+ENTRY(v7_processor_functions)
+	.word	v7_early_abort
+	.word	cpu_v7_proc_init
+	.word	cpu_v7_proc_fin
+	.word	cpu_v7_reset
+	.word	cpu_v7_do_idle
+	.word	cpu_v7_dcache_clean_area
+	.word	cpu_v7_switch_mm
+	.word	cpu_v7_set_pte_ext
+	.size	v7_processor_functions, . - v7_processor_functions
+
+	.type	cpu_arch_name, #object
+cpu_arch_name:
+	.asciz	"armv7"
+	.size	cpu_arch_name, . - cpu_arch_name
+
+	.type	cpu_elf_name, #object
+cpu_elf_name:
+	.asciz	"v7"
+	.size	cpu_elf_name, . - cpu_elf_name
+	.align
+
+	.section ".proc.info.init", #alloc, #execinstr
+
+	/*
+	 * Match any ARMv7 processor core.
+	 */
+	.type	__v7_proc_info, #object
+__v7_proc_info:
+	.long	0x000f0000		@ Required ID value
+	.long	0x000f0000		@ Mask for ID
+	.long   PMD_TYPE_SECT | \
+		PMD_SECT_BUFFERABLE | \
+		PMD_SECT_CACHEABLE | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	.long   PMD_TYPE_SECT | \
+		PMD_SECT_XN | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	b	__v7_setup
+	.long	cpu_arch_name
+	.long	cpu_elf_name
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long	cpu_v7_name
+	.long	v7_processor_functions
+	.long	v6wbi_tlb_fns
+	.long	v6_user_fns
+	.long	v7_cache_fns
+	.size	__v7_proc_info, . - __v7_proc_info
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 9e8d21eca4e..cfc69f3842f 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -20,6 +20,11 @@ endchoice
 
 comment "OMAP Feature Selections"
 
+config OMAP_DEBUG_LEDS
+	bool
+	help
+	  For debug card leds on TI reference boards.
+
 config OMAP_RESET_CLOCKS
 	bool "Reset unused clocks during boot"
 	depends on ARCH_OMAP
@@ -58,6 +63,14 @@ config OMAP_MUX_WARNINGS
 	  to change the pin multiplexing setup.  When there are no warnings
 	  printed, it's safe to deselect OMAP_MUX for your product.
 
+config OMAP_MCBSP
+	bool "McBSP support"
+	depends on ARCH_OMAP
+	default y
+	help
+	  Say Y here if you want support for the OMAP Multichannel
+	  Buffered Serial Port.
+
 choice
         prompt "System timer"
 	default OMAP_MPU_TIMER
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 2896b454641..41a3c1cf3bd 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -3,7 +3,8 @@
 #
 
 # Common support
-obj-y := common.o sram.o sram-fn.o clock.o devices.o dma.o mux.o gpio.o mcbsp.o usb.o fb.o
+obj-y := common.o sram.o sram-fn.o clock.o devices.o dma.o mux.o gpio.o \
+	 usb.o fb.o
 obj-m :=
 obj-n :=
 obj-  :=
@@ -16,4 +17,4 @@ obj-$(CONFIG_ARCH_OMAP16XX) += ocpi.o
 
 obj-$(CONFIG_CPU_FREQ) += cpu-omap.o
 obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o
-
+obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index f1179ad4be1..0a603242f36 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -33,6 +33,41 @@ static DEFINE_SPINLOCK(clockfw_lock);
 
 static struct clk_functions *arch_clock;
 
+#ifdef CONFIG_PM_DEBUG
+
+static void print_parents(struct clk *clk)
+{
+	struct clk *p;
+	int printed = 0;
+
+	list_for_each_entry(p, &clocks, node) {
+		if (p->parent == clk && p->usecount) {
+			if (!clk->usecount && !printed) {
+				printk("MISMATCH: %s\n", clk->name);
+				printed = 1;
+			}
+			printk("\t%-15s\n", p->name);
+		}
+	}
+}
+
+void clk_print_usecounts(void)
+{
+	unsigned long flags;
+	struct clk *p;
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+	list_for_each_entry(p, &clocks, node) {
+		if (p->usecount)
+			printk("%-15s: %d\n", p->name, p->usecount);
+		print_parents(p);
+
+	}
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+}
+
+#endif
+
 /*-------------------------------------------------------------------------
  * Standard clock functions defined in include/linux/clk.h
  *-------------------------------------------------------------------------*/
@@ -249,6 +284,8 @@ void followparent_recalc(struct clk *clk)
 		return;
 
 	clk->rate = clk->parent->rate;
+	if (unlikely(clk->flags & RATE_PROPAGATES))
+		propagate_rate(clk);
 }
 
 /* Propagate rate to children */
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index fecd3d62599..dd8708ad0a7 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -93,8 +93,12 @@ static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out)
 	 * in the kernel. */
 	for (i = 0; i < omap_board_config_size; i++) {
 		if (omap_board_config[i].tag == tag) {
-			kinfo = &omap_board_config[i];
-			break;
+			if (skip == 0) {
+				kinfo = &omap_board_config[i];
+				break;
+			} else {
+				skip--;
+			}
 		}
 	}
 	if (kinfo == NULL)
diff --git a/arch/arm/plat-omap/debug-leds.c b/arch/arm/plat-omap/debug-leds.c
new file mode 100644
index 00000000000..9128a80d228
--- /dev/null
+++ b/arch/arm/plat-omap/debug-leds.c
@@ -0,0 +1,314 @@
+/*
+ * linux/arch/arm/plat-omap/debug-leds.c
+ *
+ * Copyright 2003 by Texas Instruments Incorporated
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/leds.h>
+#include <asm/system.h>
+#include <asm/mach-types.h>
+
+#include <asm/arch/fpga.h>
+#include <asm/arch/gpio.h>
+
+
+/* Many OMAP development platforms reuse the same "debug board"; these
+ * platforms include H2, H3, H4, and Perseus2.  There are 16 LEDs on the
+ * debug board (all green), accessed through FPGA registers.
+ *
+ * The "surfer" expansion board and H2 sample board also have two-color
+ * green+red LEDs (in parallel), used here for timer and idle indicators
+ * in preference to the ones on the debug board, for a "Disco LED" effect.
+ *
+ * This driver exports either the original ARM LED API, the new generic
+ * one, or both.
+ */
+
+static spinlock_t			lock;
+static struct h2p2_dbg_fpga __iomem	*fpga;
+static u16				led_state, hw_led_state;
+
+
+#ifdef	CONFIG_LEDS_OMAP_DEBUG
+#define new_led_api()	1
+#else
+#define new_led_api()	0
+#endif
+
+
+/*-------------------------------------------------------------------------*/
+
+/* original ARM debug LED API:
+ *  - timer and idle leds (some boards use non-FPGA leds here);
+ *  - up to 4 generic leds, easily accessed in-kernel (any context)
+ */
+
+#define GPIO_LED_RED		3
+#define GPIO_LED_GREEN		OMAP_MPUIO(4)
+
+#define LED_STATE_ENABLED	0x01
+#define LED_STATE_CLAIMED	0x02
+#define LED_TIMER_ON		0x04
+
+#define GPIO_IDLE		GPIO_LED_GREEN
+#define GPIO_TIMER		GPIO_LED_RED
+
+static void h2p2_dbg_leds_event(led_event_t evt)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&lock, flags);
+
+	if (!(led_state & LED_STATE_ENABLED) && evt != led_start)
+		goto done;
+
+	switch (evt) {
+	case led_start:
+		if (fpga)
+			led_state |= LED_STATE_ENABLED;
+		break;
+
+	case led_stop:
+	case led_halted:
+		/* all leds off during suspend or shutdown */
+
+		if (!(machine_is_omap_perseus2() || machine_is_omap_h4())) {
+			omap_set_gpio_dataout(GPIO_TIMER, 0);
+			omap_set_gpio_dataout(GPIO_IDLE, 0);
+		}
+
+		__raw_writew(~0, &fpga->leds);
+		led_state &= ~LED_STATE_ENABLED;
+		goto done;
+
+	case led_claim:
+		led_state |= LED_STATE_CLAIMED;
+		hw_led_state = 0;
+		break;
+
+	case led_release:
+		led_state &= ~LED_STATE_CLAIMED;
+		break;
+
+#ifdef CONFIG_LEDS_TIMER
+	case led_timer:
+		led_state ^= LED_TIMER_ON;
+
+		if (machine_is_omap_perseus2() || machine_is_omap_h4())
+			hw_led_state ^= H2P2_DBG_FPGA_P2_LED_TIMER;
+		else {
+			omap_set_gpio_dataout(GPIO_TIMER,
+					led_state & LED_TIMER_ON);
+			goto done;
+		}
+
+		break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+	/* LED lit iff busy */
+	case led_idle_start:
+		if (machine_is_omap_perseus2() || machine_is_omap_h4())
+			hw_led_state &= ~H2P2_DBG_FPGA_P2_LED_IDLE;
+		else {
+			omap_set_gpio_dataout(GPIO_IDLE, 1);
+			goto done;
+		}
+
+		break;
+
+	case led_idle_end:
+		if (machine_is_omap_perseus2() || machine_is_omap_h4())
+			hw_led_state |= H2P2_DBG_FPGA_P2_LED_IDLE;
+		else {
+			omap_set_gpio_dataout(GPIO_IDLE, 0);
+			goto done;
+		}
+
+		break;
+#endif
+
+	case led_green_on:
+		hw_led_state |= H2P2_DBG_FPGA_LED_GREEN;
+		break;
+	case led_green_off:
+		hw_led_state &= ~H2P2_DBG_FPGA_LED_GREEN;
+		break;
+
+	case led_amber_on:
+		hw_led_state |= H2P2_DBG_FPGA_LED_AMBER;
+		break;
+	case led_amber_off:
+		hw_led_state &= ~H2P2_DBG_FPGA_LED_AMBER;
+		break;
+
+	case led_red_on:
+		hw_led_state |= H2P2_DBG_FPGA_LED_RED;
+		break;
+	case led_red_off:
+		hw_led_state &= ~H2P2_DBG_FPGA_LED_RED;
+		break;
+
+	case led_blue_on:
+		hw_led_state |= H2P2_DBG_FPGA_LED_BLUE;
+		break;
+	case led_blue_off:
+		hw_led_state &= ~H2P2_DBG_FPGA_LED_BLUE;
+		break;
+
+	default:
+		break;
+	}
+
+
+	/*
+	 *  Actually burn the LEDs
+	 */
+	if (led_state & LED_STATE_ENABLED)
+		__raw_writew(~hw_led_state, &fpga->leds);
+
+done:
+	spin_unlock_irqrestore(&lock, flags);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* "new" LED API
+ *  - with syfs access and generic triggering
+ *  - not readily accessible to in-kernel drivers
+ */
+
+struct dbg_led {
+	struct led_classdev	cdev;
+	u16			mask;
+};
+
+static struct dbg_led dbg_leds[] = {
+	/* REVISIT at least H2 uses different timer & cpu leds... */
+#ifndef CONFIG_LEDS_TIMER
+	{ .mask = 1 << 0,  .cdev.name =  "d4:green",
+		.cdev.default_trigger = "heartbeat", },
+#endif
+#ifndef CONFIG_LEDS_CPU
+	{ .mask = 1 << 1,  .cdev.name =  "d5:green", },		/* !idle */
+#endif
+	{ .mask = 1 << 2,  .cdev.name =  "d6:green", },
+	{ .mask = 1 << 3,  .cdev.name =  "d7:green", },
+
+	{ .mask = 1 << 4,  .cdev.name =  "d8:green", },
+	{ .mask = 1 << 5,  .cdev.name =  "d9:green", },
+	{ .mask = 1 << 6,  .cdev.name = "d10:green", },
+	{ .mask = 1 << 7,  .cdev.name = "d11:green", },
+
+	{ .mask = 1 << 8,  .cdev.name = "d12:green", },
+	{ .mask = 1 << 9,  .cdev.name = "d13:green", },
+	{ .mask = 1 << 10, .cdev.name = "d14:green", },
+	{ .mask = 1 << 11, .cdev.name = "d15:green", },
+
+#ifndef	CONFIG_LEDS
+	{ .mask = 1 << 12, .cdev.name = "d16:green", },
+	{ .mask = 1 << 13, .cdev.name = "d17:green", },
+	{ .mask = 1 << 14, .cdev.name = "d18:green", },
+	{ .mask = 1 << 15, .cdev.name = "d19:green", },
+#endif
+};
+
+static void
+fpga_led_set(struct led_classdev *cdev, enum led_brightness value)
+{
+	struct dbg_led	*led = container_of(cdev, struct dbg_led, cdev);
+	unsigned long	flags;
+
+	spin_lock_irqsave(&lock, flags);
+	if (value == LED_OFF)
+		hw_led_state &= ~led->mask;
+	else
+		hw_led_state |= led->mask;
+	__raw_writew(~hw_led_state, &fpga->leds);
+	spin_unlock_irqrestore(&lock, flags);
+}
+
+static void __init newled_init(struct device *dev)
+{
+	unsigned	i;
+	struct dbg_led	*led;
+	int		status;
+
+	for (i = 0, led = dbg_leds; i < ARRAY_SIZE(dbg_leds); i++, led++) {
+		led->cdev.brightness_set = fpga_led_set;
+		status = led_classdev_register(dev, &led->cdev);
+		if (status < 0)
+			break;
+	}
+	return;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int /* __init */ fpga_probe(struct platform_device *pdev)
+{
+	struct resource	*iomem;
+
+	spin_lock_init(&lock);
+
+	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!iomem)
+		return -ENODEV;
+
+	fpga = ioremap(iomem->start, H2P2_DBG_FPGA_SIZE);
+	__raw_writew(~0, &fpga->leds);
+
+#ifdef	CONFIG_LEDS
+	leds_event = h2p2_dbg_leds_event;
+	leds_event(led_start);
+#endif
+
+	if (new_led_api()) {
+		newled_init(&pdev->dev);
+	}
+
+	return 0;
+}
+
+static int fpga_suspend_late(struct platform_device *pdev, pm_message_t mesg)
+{
+	__raw_writew(~0, &fpga->leds);
+	return 0;
+}
+
+static int fpga_resume_early(struct platform_device *pdev)
+{
+	__raw_writew(~hw_led_state, &fpga->leds);
+	return 0;
+}
+
+
+static struct platform_driver led_driver = {
+	.driver.name	= "omap_dbg_led",
+	.probe		= fpga_probe,
+	.suspend_late	= fpga_suspend_late,
+	.resume_early	= fpga_resume_early,
+};
+
+static int __init fpga_init(void)
+{
+	if (machine_is_omap_h4()
+			|| machine_is_omap_h3()
+			|| machine_is_omap_h2()
+			|| machine_is_omap_perseus2()
+			)
+		return platform_driver_register(&led_driver);
+	return 0;
+}
+fs_initcall(fpga_init);
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index eeb33fed6f7..c5dab1d6417 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -25,7 +25,71 @@
 #include <asm/arch/gpio.h>
 #include <asm/arch/menelaus.h>
 
-#if 	defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
+#if	defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
+
+#include "../plat-omap/dsp/dsp_common.h"
+
+static struct dsp_platform_data dsp_pdata = {
+	.kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
+};
+
+static struct resource omap_dsp_resources[] = {
+	{
+		.name	= "dsp_mmu",
+		.start	= -1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device omap_dsp_device = {
+	.name		= "dsp",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(omap_dsp_resources),
+	.resource	= omap_dsp_resources,
+	.dev = {
+		.platform_data = &dsp_pdata,
+	},
+};
+
+static inline void omap_init_dsp(void)
+{
+	struct resource *res;
+	int irq;
+
+	if (cpu_is_omap15xx())
+		irq = INT_1510_DSP_MMU;
+	else if (cpu_is_omap16xx())
+		irq = INT_1610_DSP_MMU;
+	else if (cpu_is_omap24xx())
+		irq = INT_24XX_DSP_MMU;
+
+	res = platform_get_resource_byname(&omap_dsp_device,
+					   IORESOURCE_IRQ, "dsp_mmu");
+	res->start = irq;
+
+	platform_device_register(&omap_dsp_device);
+}
+
+int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
+{
+	static DEFINE_MUTEX(dsp_pdata_lock);
+
+	mutex_init(&kdev->lock);
+
+	mutex_lock(&dsp_pdata_lock);
+	list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
+	mutex_unlock(&dsp_pdata_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL(dsp_kfunc_device_register);
+
+#else
+static inline void omap_init_dsp(void) { }
+#endif	/* CONFIG_OMAP_DSP */
+
+/*-------------------------------------------------------------------------*/
+#if	defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
 
 #define	OMAP1_I2C_BASE		0xfffb3800
 #define OMAP2_I2C_BASE1		0x48070000
@@ -48,8 +112,8 @@ static struct resource i2c_resources1[] = {
 /* DMA not used; works around erratum writing to non-empty i2c fifo */
 
 static struct platform_device omap_i2c_device1 = {
-        .name           = "i2c_omap",
-        .id             = 1,
+	.name           = "i2c_omap",
+	.id             = 1,
 	.num_resources	= ARRAY_SIZE(i2c_resources1),
 	.resource	= i2c_resources1,
 };
@@ -376,7 +440,7 @@ static inline void omap_init_wdt(void) {}
 
 /*-------------------------------------------------------------------------*/
 
-#if	defined(CONFIG_OMAP_RNG) || defined(CONFIG_OMAP_RNG_MODULE)
+#if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
 
 #ifdef CONFIG_ARCH_OMAP24XX
 #define	OMAP_RNG_BASE		0x480A0000
@@ -436,6 +500,7 @@ static int __init omap_init_devices(void)
 	/* please keep these calls, and their implementations above,
 	 * in alphabetical order so they're easier to sort through.
 	 */
+	omap_init_dsp();
 	omap_init_i2c();
 	omap_init_kp();
 	omap_init_mmc();
@@ -446,4 +511,3 @@ static int __init omap_init_devices(void)
 	return 0;
 }
 arch_initcall(omap_init_devices);
-
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index f3f84fbf8b8..2d86b106ff3 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -925,10 +925,17 @@ static int omap2_dma_handle_ch(int ch)
 {
 	u32 status = OMAP_DMA_CSR_REG(ch);
 
-	if (!status)
+	if (!status) {
+		if (printk_ratelimit())
+			printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n", ch);
 		return 0;
-	if (unlikely(dma_chan[ch].dev_id == -1))
+	}
+	if (unlikely(dma_chan[ch].dev_id == -1)) {
+		if (printk_ratelimit())
+			printk(KERN_WARNING "IRQ %04x for non-allocated DMA"
+					"channel %d\n", status, ch);
 		return 0;
+	}
 	if (unlikely(status & OMAP_DMA_DROP_IRQ))
 		printk(KERN_INFO
 		       "DMA synchronization event drop occurred with device "
@@ -959,11 +966,15 @@ static irqreturn_t omap2_dma_irq_handler(int irq, void *dev_id)
 	int i;
 
 	val = omap_readl(OMAP_DMA4_IRQSTATUS_L0);
-
-	for (i = 1; i <= OMAP_LOGICAL_DMA_CH_COUNT; i++) {
-		int active = val & (1 << (i - 1));
-		if (active)
-			omap2_dma_handle_ch(i - 1);
+	if (val == 0) {
+		if (printk_ratelimit())
+			printk(KERN_WARNING "Spurious DMA IRQ\n");
+		return IRQ_HANDLED;
+	}
+	for (i = 0; i < OMAP_LOGICAL_DMA_CH_COUNT && val != 0; i++) {
+		if (val & 1)
+			omap2_dma_handle_ch(i);
+		val >>= 1;
 	}
 
 	return IRQ_HANDLED;
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 659619f235c..36073dfaa4d 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -372,7 +372,7 @@ void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
 
 	/* When the functional clock disappears, too quick writes seem to
 	 * cause an abort. */
-	__delay(15000);
+	__delay(150000);
 }
 
 #endif
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
index 56acb8720f7..4493bcff517 100644
--- a/arch/arm/plat-omap/fb.c
+++ b/arch/arm/plat-omap/fb.c
@@ -1,3 +1,26 @@
+/*
+ * File: arch/arm/plat-omap/fb.c
+ *
+ * Framebuffer device registration for TI OMAP platforms
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -16,6 +39,8 @@
 #if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
 
 static struct omapfb_platform_data omapfb_config;
+static int config_invalid;
+static int configured_regions;
 
 static u64 omap_fb_dma_mask = ~(u32)0;
 
@@ -30,39 +55,270 @@ static struct platform_device omap_fb_device = {
 	.num_resources = 0,
 };
 
-/* called from map_io */
-void omapfb_reserve_mem(void)
+static inline int ranges_overlap(unsigned long start1, unsigned long size1,
+				 unsigned long start2, unsigned long size2)
 {
-	const struct omap_fbmem_config *fbmem_conf;
+	return (start1 >= start2 && start1 < start2 + size2) ||
+	       (start2 >= start1 && start2 < start1 + size1);
+}
 
-	omapfb_config.fbmem.fb_sram_start = omap_fb_sram_start;
-	omapfb_config.fbmem.fb_sram_size = omap_fb_sram_size;
+static inline int range_included(unsigned long start1, unsigned long size1,
+				 unsigned long start2, unsigned long size2)
+{
+	return start1 >= start2 && start1 + size1 <= start2 + size2;
+}
 
-	fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
 
-	if (fbmem_conf != NULL) {
-		/* indicate that the bootloader already initialized the
-		 * fb device, so we'll skip that part in the fb driver
-		 */
-		omapfb_config.fbmem.fb_sdram_start = fbmem_conf->fb_sdram_start;
-		omapfb_config.fbmem.fb_sdram_size = fbmem_conf->fb_sdram_size;
-		if (fbmem_conf->fb_sdram_size) {
-			pr_info("Reserving %u bytes SDRAM for frame buffer\n",
-				fbmem_conf->fb_sdram_size);
-			reserve_bootmem(fbmem_conf->fb_sdram_start,
-					fbmem_conf->fb_sdram_size);
+/* Check if there is an overlapping region. */
+static int fbmem_region_reserved(unsigned long start, size_t size)
+{
+	struct omapfb_mem_region *rg;
+	int i;
+
+	rg = &omapfb_config.mem_desc.region[0];
+	for (i = 0; i < OMAPFB_PLANE_NUM; i++, rg++) {
+		if (!rg->paddr)
+			/* Empty slot. */
+			continue;
+		if (ranges_overlap(start, size, rg->paddr, rg->size))
+			return 1;
+	}
+	return 0;
+}
+
+/*
+ * Get the region_idx`th region from board config/ATAG and convert it to
+ * our internal format.
+ */
+static int get_fbmem_region(int region_idx, struct omapfb_mem_region *rg)
+{
+	const struct omap_fbmem_config	*conf;
+	u32				paddr;
+
+	conf = omap_get_nr_config(OMAP_TAG_FBMEM,
+				  struct omap_fbmem_config, region_idx);
+	if (conf == NULL)
+		return -ENOENT;
+
+	paddr = conf->start;
+	/*
+	 * Low bits encode the page allocation mode, if high bits
+	 * are zero. Otherwise we need a page aligned fixed
+	 * address.
+	 */
+	memset(rg, 0, sizeof(*rg));
+	rg->type = paddr & ~PAGE_MASK;
+	rg->paddr = paddr & PAGE_MASK;
+	rg->size = PAGE_ALIGN(conf->size);
+	return 0;
+}
+
+static int set_fbmem_region_type(struct omapfb_mem_region *rg, int mem_type,
+				  unsigned long mem_start,
+				  unsigned long mem_size)
+{
+	/*
+	 * Check if the configuration specifies the type explicitly.
+	 * type = 0 && paddr = 0, a default don't care case maps to
+	 * the SDRAM type.
+	 */
+	if (rg->type || (!rg->type && !rg->paddr))
+		return 0;
+	if (ranges_overlap(rg->paddr, rg->size, mem_start, mem_size)) {
+		rg->type = mem_type;
+		return 0;
+	}
+	/* Can't determine it. */
+	return -1;
+}
+
+static int check_fbmem_region(int region_idx, struct omapfb_mem_region *rg,
+			      unsigned long start_avail, unsigned size_avail)
+{
+	unsigned long	paddr = rg->paddr;
+	size_t		size = rg->size;
+
+	if (rg->type > OMAPFB_MEMTYPE_MAX) {
+		printk(KERN_ERR
+			"Invalid start address for FB region %d\n", region_idx);
+		return -EINVAL;
+	}
+
+	if (!rg->size) {
+		printk(KERN_ERR "Zero size for FB region %d\n", region_idx);
+		return -EINVAL;
+	}
+
+	if (!paddr)
+		/* Allocate this dynamically, leave paddr 0 for now. */
+		return 0;
+
+	/*
+	 * Fixed region for the given RAM range. Check if it's already
+	 * reserved by the FB code or someone else.
+	 */
+	if (fbmem_region_reserved(paddr, size) ||
+	    !range_included(paddr, size, start_avail, size_avail)) {
+		printk(KERN_ERR "Trying to use reserved memory "
+			"for FB region %d\n", region_idx);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/*
+ * Called from map_io. We need to call to this early enough so that we
+ * can reserve the fixed SDRAM regions before VM could get hold of them.
+ */
+void omapfb_reserve_sdram(void)
+{
+	struct bootmem_data	*bdata;
+	unsigned long		sdram_start, sdram_size;
+	unsigned long		reserved;
+	int			i;
+
+	if (config_invalid)
+		return;
+
+	bdata = NODE_DATA(0)->bdata;
+	sdram_start = bdata->node_boot_start;
+	sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
+	reserved = 0;
+	for (i = 0; ; i++) {
+		struct omapfb_mem_region	rg;
+
+		if (get_fbmem_region(i, &rg) < 0)
+			break;
+		if (i == OMAPFB_PLANE_NUM) {
+			printk(KERN_ERR
+				"Extraneous FB mem configuration entries\n");
+			config_invalid = 1;
+			return;
 		}
+		/* Check if it's our memory type. */
+		if (set_fbmem_region_type(&rg, OMAPFB_MEMTYPE_SDRAM,
+				          sdram_start, sdram_size) < 0 ||
+		    (rg.type != OMAPFB_MEMTYPE_SDRAM))
+			continue;
+		BUG_ON(omapfb_config.mem_desc.region[i].size);
+		if (check_fbmem_region(i, &rg, sdram_start, sdram_size) < 0) {
+			config_invalid = 1;
+			return;
+		}
+		if (rg.paddr)
+			reserve_bootmem(rg.paddr, rg.size);
+		reserved += rg.size;
+		omapfb_config.mem_desc.region[i] = rg;
+		configured_regions++;
 	}
+	omapfb_config.mem_desc.region_cnt = i;
+	if (reserved)
+		pr_info("Reserving %lu bytes SDRAM for frame buffer\n",
+			 reserved);
+}
+
+/*
+ * Called at sram init time, before anything is pushed to the SRAM stack.
+ * Because of the stack scheme, we will allocate everything from the
+ * start of the lowest address region to the end of SRAM. This will also
+ * include padding for page alignment and possible holes between regions.
+ *
+ * As opposed to the SDRAM case, we'll also do any dynamic allocations at
+ * this point, since the driver built as a module would have problem with
+ * freeing / reallocating the regions.
+ */
+unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
+				  unsigned long sram_vstart,
+				  unsigned long sram_size,
+				  unsigned long pstart_avail,
+				  unsigned long size_avail)
+{
+	struct omapfb_mem_region	rg;
+	unsigned long			pend_avail;
+	unsigned long			reserved;
+	int				i;
+
+	if (config_invalid)
+		return 0;
+
+	reserved = 0;
+	pend_avail = pstart_avail + size_avail;
+	for (i = 0; ; i++) {
+		if (get_fbmem_region(i, &rg) < 0)
+			break;
+		if (i == OMAPFB_PLANE_NUM) {
+			printk(KERN_ERR
+				"Extraneous FB mem configuration entries\n");
+			config_invalid = 1;
+			return 0;
+		}
+
+		/* Check if it's our memory type. */
+		if (set_fbmem_region_type(&rg, OMAPFB_MEMTYPE_SRAM,
+				          sram_pstart, sram_size) < 0 ||
+		    (rg.type != OMAPFB_MEMTYPE_SRAM))
+			continue;
+		BUG_ON(omapfb_config.mem_desc.region[i].size);
+
+		if (check_fbmem_region(i, &rg, pstart_avail, size_avail) < 0) {
+			config_invalid = 1;
+			return 0;
+		}
+
+		if (!rg.paddr) {
+			/* Dynamic allocation */
+			if ((size_avail & PAGE_MASK) < rg.size) {
+				printk("Not enough SRAM for FB region %d\n",
+					i);
+				config_invalid = 1;
+				return 0;
+			}
+			size_avail = (size_avail - rg.size) & PAGE_MASK;
+			rg.paddr = pstart_avail + size_avail;
+		}
+		/* Reserve everything above the start of the region. */
+		if (pend_avail - rg.paddr > reserved)
+			reserved = pend_avail - rg.paddr;
+		size_avail = pend_avail - reserved - pstart_avail;
+
+		/*
+		 * We have a kernel mapping for this already, so the
+		 * driver won't have to make one.
+		 */
+		rg.vaddr = (void *)(sram_vstart + rg.paddr - sram_pstart);
+		omapfb_config.mem_desc.region[i] = rg;
+		configured_regions++;
+	}
+	omapfb_config.mem_desc.region_cnt = i;
+	if (reserved)
+		pr_info("Reserving %lu bytes SRAM for frame buffer\n",
+			 reserved);
+	return reserved;
+}
+
+void omapfb_set_ctrl_platform_data(void *data)
+{
+	omapfb_config.ctrl_platform_data = data;
 }
 
 static inline int omap_init_fb(void)
 {
 	const struct omap_lcd_config *conf;
 
+	if (config_invalid)
+		return 0;
+	if (configured_regions != omapfb_config.mem_desc.region_cnt) {
+		printk(KERN_ERR "Invalid FB mem configuration entries\n");
+		return 0;
+	}
 	conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
-	if (conf == NULL)
+	if (conf == NULL) {
+		if (configured_regions)
+			/* FB mem config, but no LCD config? */
+			printk(KERN_ERR "Missing LCD configuration\n");
 		return 0;
-
+	}
 	omapfb_config.lcd = *conf;
 
 	return platform_device_register(&omap_fb_device);
@@ -72,7 +328,16 @@ arch_initcall(omap_init_fb);
 
 #else
 
-void omapfb_reserve_mem(void) {}
+void omapfb_reserve_sdram(void) {}
+unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
+				  unsigned long sram_vstart,
+				  unsigned long sram_size,
+				  unsigned long start_avail,
+				  unsigned long size_avail)
+{
+	return 0;
+}
+
 
 #endif
 
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 9dc6d3617bd..337455dfe64 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -13,7 +13,6 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
-#include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/sysdev.h>
 #include <linux/err.h>
@@ -1545,7 +1544,7 @@ void omap2_gpio_resume_after_retention(void)
  * This may get called early from board specific init
  * for boards that have interrupts routed via FPGA.
  */
-int omap_gpio_init(void)
+int __init omap_gpio_init(void)
 {
 	if (!initialized)
 		return _omap_gpio_init();
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
new file mode 100644
index 00000000000..de7e6ef48bd
--- /dev/null
+++ b/arch/arm/plat-omap/mailbox.c
@@ -0,0 +1,509 @@
+/*
+ * OMAP mailbox driver
+ *
+ * Copyright (C) 2006 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Toshihiro Kobayashi <toshihiro.kobayashi@nokia.com>
+ *		Restructured by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/blkdev.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/arch/mailbox.h>
+#include "mailbox.h"
+
+static struct omap_mbox *mboxes;
+static DEFINE_RWLOCK(mboxes_lock);
+
+/* Mailbox Sequence Bit function */
+void omap_mbox_init_seq(struct omap_mbox *mbox)
+{
+	mbox_seq_init(mbox);
+}
+EXPORT_SYMBOL(omap_mbox_init_seq);
+
+/*
+ * message sender
+ */
+static int __mbox_msg_send(struct omap_mbox *mbox, mbox_msg_t msg, void *arg)
+{
+	int ret = 0, i = 1000;
+
+	while (mbox_fifo_full(mbox)) {
+		if (mbox->ops->type == OMAP_MBOX_TYPE2)
+			return -1;
+		if (--i == 0)
+			return -1;
+		udelay(1);
+	}
+
+	if (arg && mbox->txq->callback) {
+		ret = mbox->txq->callback(arg);
+		if (ret)
+			goto out;
+	}
+
+	mbox_seq_toggle(mbox, &msg);
+	mbox_fifo_write(mbox, msg);
+ out:
+	return ret;
+}
+
+int omap_mbox_msg_send(struct omap_mbox *mbox, mbox_msg_t msg, void* arg)
+{
+	struct request *rq;
+	struct request_queue *q = mbox->txq->queue;
+	int ret = 0;
+
+	rq = blk_get_request(q, WRITE, GFP_ATOMIC);
+	if (unlikely(!rq)) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	rq->data = (void *)msg;
+	blk_insert_request(q, rq, 0, arg);
+
+	schedule_work(&mbox->txq->work);
+ fail:
+	return ret;
+}
+EXPORT_SYMBOL(omap_mbox_msg_send);
+
+static void mbox_tx_work(struct work_struct *work)
+{
+	int ret;
+	struct request *rq;
+	struct omap_mbox_queue *mq = container_of(work,
+				struct omap_mbox_queue, work);
+	struct omap_mbox *mbox = mq->queue->queuedata;
+	struct request_queue *q = mbox->txq->queue;
+
+	while (1) {
+		spin_lock(q->queue_lock);
+		rq = elv_next_request(q);
+		spin_unlock(q->queue_lock);
+
+		if (!rq)
+			break;
+
+		ret = __mbox_msg_send(mbox, (mbox_msg_t) rq->data, rq->special);
+		if (ret) {
+			enable_mbox_irq(mbox, IRQ_TX);
+			return;
+		}
+
+		spin_lock(q->queue_lock);
+		blkdev_dequeue_request(rq);
+		end_that_request_last(rq, 0);
+		spin_unlock(q->queue_lock);
+	}
+}
+
+/*
+ * Message receiver(workqueue)
+ */
+static void mbox_rx_work(struct work_struct *work)
+{
+	struct omap_mbox_queue *mq =
+			container_of(work, struct omap_mbox_queue, work);
+	struct omap_mbox *mbox = mq->queue->queuedata;
+	struct request_queue *q = mbox->rxq->queue;
+	struct request *rq;
+	mbox_msg_t msg;
+	unsigned long flags;
+
+	if (mbox->rxq->callback == NULL) {
+		sysfs_notify(&mbox->dev.kobj, NULL, "mbox");
+		return;
+	}
+
+	while (1) {
+		spin_lock_irqsave(q->queue_lock, flags);
+		rq = elv_next_request(q);
+		spin_unlock_irqrestore(q->queue_lock, flags);
+		if (!rq)
+			break;
+
+		msg = (mbox_msg_t) rq->data;
+
+		spin_lock_irqsave(q->queue_lock, flags);
+		blkdev_dequeue_request(rq);
+		end_that_request_last(rq, 0);
+		spin_unlock_irqrestore(q->queue_lock, flags);
+
+		mbox->rxq->callback((void *)msg);
+	}
+}
+
+/*
+ * Mailbox interrupt handler
+ */
+static void mbox_txq_fn(request_queue_t * q)
+{
+}
+
+static void mbox_rxq_fn(request_queue_t * q)
+{
+}
+
+static void __mbox_tx_interrupt(struct omap_mbox *mbox)
+{
+	disable_mbox_irq(mbox, IRQ_TX);
+	ack_mbox_irq(mbox, IRQ_TX);
+	schedule_work(&mbox->txq->work);
+}
+
+static void __mbox_rx_interrupt(struct omap_mbox *mbox)
+{
+	struct request *rq;
+	mbox_msg_t msg;
+	request_queue_t *q = mbox->rxq->queue;
+
+	disable_mbox_irq(mbox, IRQ_RX);
+
+	while (!mbox_fifo_empty(mbox)) {
+		rq = blk_get_request(q, WRITE, GFP_ATOMIC);
+		if (unlikely(!rq))
+			goto nomem;
+
+		msg = mbox_fifo_read(mbox);
+		rq->data = (void *)msg;
+
+		if (unlikely(mbox_seq_test(mbox, msg))) {
+			pr_info("mbox: Illegal seq bit!(%08x)\n", msg);
+			if (mbox->err_notify)
+				mbox->err_notify();
+		}
+
+		blk_insert_request(q, rq, 0, NULL);
+		if (mbox->ops->type == OMAP_MBOX_TYPE1)
+			break;
+	}
+
+	/* no more messages in the fifo. clear IRQ source. */
+	ack_mbox_irq(mbox, IRQ_RX);
+	enable_mbox_irq(mbox, IRQ_RX);
+	nomem:
+	schedule_work(&mbox->rxq->work);
+}
+
+static irqreturn_t mbox_interrupt(int irq, void *p)
+{
+	struct omap_mbox *mbox = (struct omap_mbox *)p;
+
+	if (is_mbox_irq(mbox, IRQ_TX))
+		__mbox_tx_interrupt(mbox);
+
+	if (is_mbox_irq(mbox, IRQ_RX))
+		__mbox_rx_interrupt(mbox);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * sysfs files
+ */
+static ssize_t
+omap_mbox_write(struct device *dev, struct device_attribute *attr,
+		const char * buf, size_t count)
+{
+	int ret;
+	mbox_msg_t *p = (mbox_msg_t *)buf;
+	struct omap_mbox *mbox = dev_get_drvdata(dev);
+
+	for (; count >= sizeof(mbox_msg_t); count -= sizeof(mbox_msg_t)) {
+		ret = omap_mbox_msg_send(mbox, be32_to_cpu(*p), NULL);
+		if (ret)
+			return -EAGAIN;
+		p++;
+	}
+
+	return (size_t)((char *)p - buf);
+}
+
+static ssize_t
+omap_mbox_read(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	unsigned long flags;
+	struct request *rq;
+	mbox_msg_t *p = (mbox_msg_t *) buf;
+	struct omap_mbox *mbox = dev_get_drvdata(dev);
+	struct request_queue *q = mbox->rxq->queue;
+
+	while (1) {
+		spin_lock_irqsave(q->queue_lock, flags);
+		rq = elv_next_request(q);
+		spin_unlock_irqrestore(q->queue_lock, flags);
+
+		if (!rq)
+			break;
+
+		*p = (mbox_msg_t) rq->data;
+
+		spin_lock_irqsave(q->queue_lock, flags);
+		blkdev_dequeue_request(rq);
+		end_that_request_last(rq, 0);
+		spin_unlock_irqrestore(q->queue_lock, flags);
+
+		if (unlikely(mbox_seq_test(mbox, *p))) {
+			pr_info("mbox: Illegal seq bit!(%08x) ignored\n", *p);
+			continue;
+		}
+		p++;
+	}
+
+	pr_debug("%02x %02x %02x %02x\n", buf[0], buf[1], buf[2], buf[3]);
+
+	return (size_t) ((char *)p - buf);
+}
+
+static DEVICE_ATTR(mbox, S_IRUGO | S_IWUSR, omap_mbox_read, omap_mbox_write);
+
+static ssize_t mbox_show(struct class *class, char *buf)
+{
+	return sprintf(buf, "mbox");
+}
+
+static CLASS_ATTR(mbox, S_IRUGO, mbox_show, NULL);
+
+static struct class omap_mbox_class = {
+	.name = "omap_mbox",
+};
+
+static struct omap_mbox_queue *mbox_queue_alloc(struct omap_mbox *mbox,
+					request_fn_proc * proc,
+					void (*work) (struct work_struct *))
+{
+	request_queue_t *q;
+	struct omap_mbox_queue *mq;
+
+	mq = kzalloc(sizeof(struct omap_mbox_queue), GFP_KERNEL);
+	if (!mq)
+		return NULL;
+
+	spin_lock_init(&mq->lock);
+
+	q = blk_init_queue(proc, &mq->lock);
+	if (!q)
+		goto error;
+	q->queuedata = mbox;
+	mq->queue = q;
+
+	INIT_WORK(&mq->work, work);
+
+	return mq;
+error:
+	kfree(mq);
+	return NULL;
+}
+
+static void mbox_queue_free(struct omap_mbox_queue *q)
+{
+	blk_cleanup_queue(q->queue);
+	kfree(q);
+}
+
+static int omap_mbox_init(struct omap_mbox *mbox)
+{
+	int ret;
+	struct omap_mbox_queue *mq;
+
+	if (likely(mbox->ops->startup)) {
+		ret = mbox->ops->startup(mbox);
+		if (unlikely(ret))
+			return ret;
+	}
+
+	mbox->dev.class = &omap_mbox_class;
+	strlcpy(mbox->dev.bus_id, mbox->name, KOBJ_NAME_LEN);
+	dev_set_drvdata(&mbox->dev, mbox);
+
+	ret = device_register(&mbox->dev);
+	if (unlikely(ret))
+		goto fail_device_reg;
+
+	ret = device_create_file(&mbox->dev, &dev_attr_mbox);
+	if (unlikely(ret)) {
+		printk(KERN_ERR
+			"device_create_file failed: %d\n", ret);
+		goto fail_create_mbox;
+	}
+
+	ret = request_irq(mbox->irq, mbox_interrupt, IRQF_DISABLED,
+				mbox->name, mbox);
+	if (unlikely(ret)) {
+		printk(KERN_ERR
+			"failed to register mailbox interrupt:%d\n", ret);
+		goto fail_request_irq;
+	}
+	enable_mbox_irq(mbox, IRQ_RX);
+
+	mq = mbox_queue_alloc(mbox, mbox_txq_fn, mbox_tx_work);
+	if (!mq) {
+		ret = -ENOMEM;
+		goto fail_alloc_txq;
+	}
+	mbox->txq = mq;
+
+	mq = mbox_queue_alloc(mbox, mbox_rxq_fn, mbox_rx_work);
+	if (!mq) {
+		ret = -ENOMEM;
+		goto fail_alloc_rxq;
+	}
+	mbox->rxq = mq;
+
+	return 0;
+
+ fail_alloc_rxq:
+	mbox_queue_free(mbox->txq);
+ fail_alloc_txq:
+	free_irq(mbox->irq, mbox);
+ fail_request_irq:
+	device_remove_file(&mbox->dev, &dev_attr_mbox);
+ fail_create_mbox:
+	device_unregister(&mbox->dev);
+ fail_device_reg:
+	if (unlikely(mbox->ops->shutdown))
+		mbox->ops->shutdown(mbox);
+
+	return ret;
+}
+
+static void omap_mbox_fini(struct omap_mbox *mbox)
+{
+	mbox_queue_free(mbox->txq);
+	mbox_queue_free(mbox->rxq);
+
+	free_irq(mbox->irq, mbox);
+	device_remove_file(&mbox->dev, &dev_attr_mbox);
+	class_unregister(&omap_mbox_class);
+
+	if (unlikely(mbox->ops->shutdown))
+		mbox->ops->shutdown(mbox);
+}
+
+static struct omap_mbox **find_mboxes(const char *name)
+{
+	struct omap_mbox **p;
+
+	for (p = &mboxes; *p; p = &(*p)->next) {
+		if (strcmp((*p)->name, name) == 0)
+			break;
+	}
+
+	return p;
+}
+
+struct omap_mbox *omap_mbox_get(const char *name)
+{
+	struct omap_mbox *mbox;
+	int ret;
+
+	read_lock(&mboxes_lock);
+	mbox = *(find_mboxes(name));
+	if (mbox == NULL) {
+		read_unlock(&mboxes_lock);
+		return ERR_PTR(-ENOENT);
+	}
+
+	read_unlock(&mboxes_lock);
+
+	ret = omap_mbox_init(mbox);
+	if (ret)
+		return ERR_PTR(-ENODEV);
+
+	return mbox;
+}
+EXPORT_SYMBOL(omap_mbox_get);
+
+void omap_mbox_put(struct omap_mbox *mbox)
+{
+	omap_mbox_fini(mbox);
+}
+EXPORT_SYMBOL(omap_mbox_put);
+
+int omap_mbox_register(struct omap_mbox *mbox)
+{
+	int ret = 0;
+	struct omap_mbox **tmp;
+
+	if (!mbox)
+		return -EINVAL;
+	if (mbox->next)
+		return -EBUSY;
+
+	write_lock(&mboxes_lock);
+	tmp = find_mboxes(mbox->name);
+	if (*tmp)
+		ret = -EBUSY;
+	else
+		*tmp = mbox;
+	write_unlock(&mboxes_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(omap_mbox_register);
+
+int omap_mbox_unregister(struct omap_mbox *mbox)
+{
+	struct omap_mbox **tmp;
+
+	write_lock(&mboxes_lock);
+	tmp = &mboxes;
+	while (*tmp) {
+		if (mbox == *tmp) {
+			*tmp = mbox->next;
+			mbox->next = NULL;
+			write_unlock(&mboxes_lock);
+			return 0;
+		}
+		tmp = &(*tmp)->next;
+	}
+	write_unlock(&mboxes_lock);
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(omap_mbox_unregister);
+
+static int __init omap_mbox_class_init(void)
+{
+	int ret = class_register(&omap_mbox_class);
+	if (!ret)
+		ret = class_create_file(&omap_mbox_class, &class_attr_mbox);
+
+	return ret;
+}
+
+static void __exit omap_mbox_class_exit(void)
+{
+	class_remove_file(&omap_mbox_class, &class_attr_mbox);
+	class_unregister(&omap_mbox_class);
+}
+
+subsys_initcall(omap_mbox_class_init);
+module_exit(omap_mbox_class_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/arch/arm/plat-omap/mailbox.h b/arch/arm/plat-omap/mailbox.h
new file mode 100644
index 00000000000..67c6740b8ad
--- /dev/null
+++ b/arch/arm/plat-omap/mailbox.h
@@ -0,0 +1,100 @@
+/*
+ * Mailbox internal functions
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ * Written by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef __ARCH_ARM_PLAT_MAILBOX_H
+#define __ARCH_ARM_PLAT_MAILBOX_H
+
+/*
+ * Mailbox sequence bit API
+ */
+#if defined(CONFIG_ARCH_OMAP1)
+#  define MBOX_USE_SEQ_BIT
+#elif defined(CONFIG_ARCH_OMAP2)
+#  define MBOX_USE_SEQ_BIT
+#endif
+
+#ifdef MBOX_USE_SEQ_BIT
+/* seq_rcv should be initialized with any value other than
+ * 0 and 1 << 31, to allow either value for the first
+ * message.  */
+static inline void mbox_seq_init(struct omap_mbox *mbox)
+{
+	/* any value other than 0 and 1 << 31 */
+	mbox->seq_rcv = 0xffffffff;
+}
+
+static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg)
+{
+	/* add seq_snd to msg */
+	*msg = (*msg & 0x7fffffff) | mbox->seq_snd;
+	/* flip seq_snd */
+	mbox->seq_snd ^= 1 << 31;
+}
+
+static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg)
+{
+	mbox_msg_t seq = msg & (1 << 31);
+	if (seq == mbox->seq_rcv)
+		return -1;
+	mbox->seq_rcv = seq;
+	return 0;
+}
+#else
+static inline void mbox_seq_init(struct omap_mbox *mbox)
+{
+}
+static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg)
+{
+}
+static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg)
+{
+	return 0;
+}
+#endif
+
+/* Mailbox FIFO handle functions */
+static inline mbox_msg_t mbox_fifo_read(struct omap_mbox *mbox)
+{
+	return mbox->ops->fifo_read(mbox);
+}
+static inline void mbox_fifo_write(struct omap_mbox *mbox, mbox_msg_t msg)
+{
+	mbox->ops->fifo_write(mbox, msg);
+}
+static inline int mbox_fifo_empty(struct omap_mbox *mbox)
+{
+	return mbox->ops->fifo_empty(mbox);
+}
+static inline int mbox_fifo_full(struct omap_mbox *mbox)
+{
+	return mbox->ops->fifo_full(mbox);
+}
+
+/* Mailbox IRQ handle functions */
+static inline void enable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
+{
+	mbox->ops->enable_irq(mbox, irq);
+}
+static inline void disable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
+{
+	mbox->ops->disable_irq(mbox, irq);
+}
+static inline void ack_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
+{
+	if (mbox->ops->ack_irq)
+		mbox->ops->ack_irq(mbox, irq);
+}
+static inline int is_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
+{
+	return mbox->ops->is_irq(mbox, irq);
+}
+
+#endif				/* __ARCH_ARM_PLAT_MAILBOX_H */
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 19014b2ff4c..bc46f33aede 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -46,14 +46,19 @@
 
 #define ROUND_DOWN(value,boundary)	((value) & (~((boundary)-1)))
 
+static unsigned long omap_sram_start;
 static unsigned long omap_sram_base;
 static unsigned long omap_sram_size;
 static unsigned long omap_sram_ceil;
 
-unsigned long omap_fb_sram_start;
-unsigned long omap_fb_sram_size;
+extern unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
+					 unsigned long sram_vstart,
+					 unsigned long sram_size,
+					 unsigned long pstart_avail,
+					 unsigned long size_avail);
 
-/* Depending on the target RAMFS firewall setup, the public usable amount of
+/*
+ * Depending on the target RAMFS firewall setup, the public usable amount of
  * SRAM varies.  The default accessable size for all device types is 2k. A GP
  * device allows ARM11 but not other initators for full size. This
  * functionality seems ok until some nice security API happens.
@@ -77,32 +82,6 @@ static int is_sram_locked(void)
 		return 1; /* assume locked with no PPA or security driver */
 }
 
-void get_fb_sram_conf(unsigned long start_avail, unsigned size_avail,
-		      unsigned long *start, unsigned long *size)
-{
-	const struct omap_fbmem_config *fbmem_conf;
-
-	fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
-	if (fbmem_conf != NULL) {
-		*start = fbmem_conf->fb_sram_start;
-		*size = fbmem_conf->fb_sram_size;
-	} else {
-		*size = 0;
-		*start = 0;
-	}
-
-	if (*size && (
-	    *start < start_avail ||
-	    *start + *size > start_avail + size_avail)) {
-		printk(KERN_ERR "invalid FB SRAM configuration\n");
-		*start = start_avail;
-		*size = size_avail;
-	}
-
-	if (*size)
-		pr_info("Reserving %lu bytes SRAM for frame buffer\n", *size);
-}
-
 /*
  * The amount of SRAM depends on the core type.
  * Note that we cannot try to test for SRAM here because writes
@@ -111,16 +90,16 @@ void get_fb_sram_conf(unsigned long start_avail, unsigned size_avail,
  */
 void __init omap_detect_sram(void)
 {
-	unsigned long sram_start;
+	unsigned long reserved;
 
 	if (cpu_is_omap24xx()) {
 		if (is_sram_locked()) {
 			omap_sram_base = OMAP2_SRAM_PUB_VA;
-			sram_start = OMAP2_SRAM_PUB_PA;
+			omap_sram_start = OMAP2_SRAM_PUB_PA;
 			omap_sram_size = 0x800; /* 2K */
 		} else {
 			omap_sram_base = OMAP2_SRAM_VA;
-			sram_start = OMAP2_SRAM_PA;
+			omap_sram_start = OMAP2_SRAM_PA;
 			if (cpu_is_omap242x())
 				omap_sram_size = 0xa0000; /* 640K */
 			else if (cpu_is_omap243x())
@@ -128,7 +107,7 @@ void __init omap_detect_sram(void)
 		}
 	} else {
 		omap_sram_base = OMAP1_SRAM_VA;
-		sram_start = OMAP1_SRAM_PA;
+		omap_sram_start = OMAP1_SRAM_PA;
 
 		if (cpu_is_omap730())
 			omap_sram_size = 0x32000;	/* 200K */
@@ -144,12 +123,11 @@ void __init omap_detect_sram(void)
 			omap_sram_size = 0x4000;
 		}
 	}
-	get_fb_sram_conf(sram_start + SRAM_BOOTLOADER_SZ,
-			 omap_sram_size - SRAM_BOOTLOADER_SZ,
-			 &omap_fb_sram_start, &omap_fb_sram_size);
-	if (omap_fb_sram_size)
-		omap_sram_size -= sram_start + omap_sram_size -
-				  omap_fb_sram_start;
+	reserved = omapfb_reserve_sram(omap_sram_start, omap_sram_base,
+				       omap_sram_size,
+				       omap_sram_start + SRAM_BOOTLOADER_SZ,
+				       omap_sram_size - SRAM_BOOTLOADER_SZ);
+	omap_sram_size -= reserved;
 	omap_sram_ceil = omap_sram_base + omap_sram_size;
 }
 
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c
index 7e8096809be..25489aafb11 100644
--- a/arch/arm/plat-omap/usb.c
+++ b/arch/arm/plat-omap/usb.c
@@ -37,9 +37,27 @@
 #include <asm/arch/usb.h>
 #include <asm/arch/board.h>
 
+#ifdef CONFIG_ARCH_OMAP1
+
+#define INT_USB_IRQ_GEN		IH2_BASE + 20
+#define INT_USB_IRQ_NISO	IH2_BASE + 30
+#define INT_USB_IRQ_ISO		IH2_BASE + 29
+#define INT_USB_IRQ_HGEN	INT_USB_HHC_1
+#define INT_USB_IRQ_OTG		IH2_BASE + 8
+
+#else
+
+#define INT_USB_IRQ_GEN		INT_24XX_USB_IRQ_GEN
+#define INT_USB_IRQ_NISO	INT_24XX_USB_IRQ_NISO
+#define INT_USB_IRQ_ISO		INT_24XX_USB_IRQ_ISO
+#define INT_USB_IRQ_HGEN	INT_24XX_USB_IRQ_HGEN
+#define INT_USB_IRQ_OTG		INT_24XX_USB_IRQ_OTG
+
+#endif
+
+
 /* These routines should handle the standard chip-specific modes
  * for usb0/1/2 ports, covering basic mux and transceiver setup.
- * Call omap_usb_init() once, from INIT_MACHINE().
  *
  * Some board-*.c files will need to set up additional mux options,
  * like for suspend handling, vbus sensing, GPIOs, and the D+ pullup.
@@ -96,19 +114,26 @@ static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
 {
 	u32	syscon1 = 0;
 
+	if (cpu_is_omap24xx())
+		CONTROL_DEVCONF_REG &= ~USBT0WRMODEI(USB_BIDIR_TLL);
+
 	if (nwires == 0) {
-		if (!cpu_is_omap15xx()) {
+		if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
 			/* pulldown D+/D- */
 			USB_TRANSCEIVER_CTRL_REG &= ~(3 << 1);
 		}
 		return 0;
 	}
 
-	if (is_device)
-		omap_cfg_reg(W4_USB_PUEN);
+	if (is_device) {
+		if (cpu_is_omap24xx())
+			omap_cfg_reg(J20_24XX_USB0_PUEN);
+		else
+			omap_cfg_reg(W4_USB_PUEN);
+	}
 
-	/* internal transceiver */
-	if (nwires == 2) {
+	/* internal transceiver (unavailable on 17xx, 24xx) */
+	if (!cpu_class_is_omap2() && nwires == 2) {
 		// omap_cfg_reg(P9_USB_DP);
 		// omap_cfg_reg(R8_USB_DM);
 
@@ -136,29 +161,50 @@ static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
 		return 0;
 	}
 
-	omap_cfg_reg(V6_USB0_TXD);
-	omap_cfg_reg(W9_USB0_TXEN);
-	omap_cfg_reg(W5_USB0_SE0);
+	if (cpu_is_omap24xx()) {
+		omap_cfg_reg(K18_24XX_USB0_DAT);
+		omap_cfg_reg(K19_24XX_USB0_TXEN);
+		omap_cfg_reg(J14_24XX_USB0_SE0);
+		if (nwires != 3)
+			omap_cfg_reg(J18_24XX_USB0_RCV);
+	} else {
+		omap_cfg_reg(V6_USB0_TXD);
+		omap_cfg_reg(W9_USB0_TXEN);
+		omap_cfg_reg(W5_USB0_SE0);
+		if (nwires != 3)
+			omap_cfg_reg(Y5_USB0_RCV);
+	}
 
-	/* NOTE:  SPEED and SUSP aren't configured here */
+	/* NOTE:  SPEED and SUSP aren't configured here.  OTG hosts
+	 * may be able to use I2C requests to set those bits along
+	 * with VBUS switching and overcurrent detction.
+	 */
 
-	if (nwires != 3)
-		omap_cfg_reg(Y5_USB0_RCV);
-	if (nwires != 6)
+	if (cpu_class_is_omap1() && nwires != 6)
 		USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
 
 	switch (nwires) {
 	case 3:
 		syscon1 = 2;
+		if (cpu_is_omap24xx())
+			CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR);
 		break;
 	case 4:
 		syscon1 = 1;
+		if (cpu_is_omap24xx())
+			CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR);
 		break;
 	case 6:
 		syscon1 = 3;
-		omap_cfg_reg(AA9_USB0_VP);
-		omap_cfg_reg(R9_USB0_VM);
-		USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R;
+		if (cpu_is_omap24xx()) {
+			omap_cfg_reg(J19_24XX_USB0_VP);
+			omap_cfg_reg(K20_24XX_USB0_VM);
+			CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_UNIDIR);
+		} else {
+			omap_cfg_reg(AA9_USB0_VP);
+			omap_cfg_reg(R9_USB0_VM);
+			USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R;
+		}
 		break;
 	default:
 		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
@@ -171,14 +217,22 @@ static u32 __init omap_usb1_init(unsigned nwires)
 {
 	u32	syscon1 = 0;
 
-	if (nwires != 6 && !cpu_is_omap15xx())
+	if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6)
 		USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB1_UNI_R;
+	if (cpu_is_omap24xx())
+		CONTROL_DEVCONF_REG &= ~USBT1WRMODEI(USB_BIDIR_TLL);
+
 	if (nwires == 0)
 		return 0;
 
 	/* external transceiver */
-	omap_cfg_reg(USB1_TXD);
-	omap_cfg_reg(USB1_TXEN);
+	if (cpu_class_is_omap1()) {
+		omap_cfg_reg(USB1_TXD);
+		omap_cfg_reg(USB1_TXEN);
+		if (nwires != 3)
+			omap_cfg_reg(USB1_RCV);
+	}
+
 	if (cpu_is_omap15xx()) {
 		omap_cfg_reg(USB1_SEO);
 		omap_cfg_reg(USB1_SPEED);
@@ -190,20 +244,38 @@ static u32 __init omap_usb1_init(unsigned nwires)
 	} else if (cpu_is_omap1710()) {
 		omap_cfg_reg(R13_1710_USB1_SE0);
 		// SUSP
+	} else if (cpu_is_omap24xx()) {
+		/* NOTE:  board-specific code must set up pin muxing for usb1,
+		 * since each signal could come out on either of two balls.
+		 */
 	} else {
-		pr_debug("usb unrecognized\n");
+		pr_debug("usb%d cpu unrecognized\n", 1);
+		return 0;
 	}
-	if (nwires != 3)
-		omap_cfg_reg(USB1_RCV);
 
 	switch (nwires) {
+	case 2:
+		if (!cpu_is_omap24xx())
+			goto bad;
+		/* NOTE: board-specific code must override this setting if
+		 * this TLL link is not using DP/DM
+		 */
+		syscon1 = 1;
+		CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR_TLL);
+		break;
 	case 3:
 		syscon1 = 2;
+		if (cpu_is_omap24xx())
+			CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR);
 		break;
 	case 4:
 		syscon1 = 1;
+		if (cpu_is_omap24xx())
+			CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR);
 		break;
 	case 6:
+		if (cpu_is_omap24xx())
+			goto bad;
 		syscon1 = 3;
 		omap_cfg_reg(USB1_VP);
 		omap_cfg_reg(USB1_VM);
@@ -211,6 +283,7 @@ static u32 __init omap_usb1_init(unsigned nwires)
 			USB_TRANSCEIVER_CTRL_REG |= CONF_USB1_UNI_R;
 		break;
 	default:
+bad:
 		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
 			1, nwires);
 	}
@@ -221,10 +294,17 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
 {
 	u32	syscon1 = 0;
 
-	/* NOTE erratum: must leave USB2_UNI_R set if usb0 in use */
+	if (cpu_is_omap24xx()) {
+		CONTROL_DEVCONF_REG &= ~(USBT2WRMODEI(USB_BIDIR_TLL)
+					| USBT2TLL5PI);
+		alt_pingroup = 0;
+	}
+
+	/* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */
 	if (alt_pingroup || nwires == 0)
 		return 0;
-	if (nwires != 6 && !cpu_is_omap15xx())
+
+	if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6)
 		USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
 
 	/* external transceiver */
@@ -242,19 +322,54 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
 		if (nwires != 3)
 			omap_cfg_reg(Y5_USB2_RCV);
 		// FIXME omap_cfg_reg(USB2_SPEED);
+	} else if (cpu_is_omap24xx()) {
+		omap_cfg_reg(Y11_24XX_USB2_DAT);
+		omap_cfg_reg(AA10_24XX_USB2_SE0);
+		if (nwires > 2)
+			omap_cfg_reg(AA12_24XX_USB2_TXEN);
+		if (nwires > 3)
+			omap_cfg_reg(AA6_24XX_USB2_RCV);
 	} else {
-		pr_debug("usb unrecognized\n");
+		pr_debug("usb%d cpu unrecognized\n", 1);
+		return 0;
 	}
-	// omap_cfg_reg(USB2_SUSP);
+	// if (cpu_class_is_omap1()) omap_cfg_reg(USB2_SUSP);
 
 	switch (nwires) {
+	case 2:
+		if (!cpu_is_omap24xx())
+			goto bad;
+		/* NOTE: board-specific code must override this setting if
+		 * this TLL link is not using DP/DM
+		 */
+		syscon1 = 1;
+		CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR_TLL);
+		break;
 	case 3:
 		syscon1 = 2;
+		if (cpu_is_omap24xx())
+			CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR);
 		break;
 	case 4:
 		syscon1 = 1;
+		if (cpu_is_omap24xx())
+			CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR);
+		break;
+	case 5:
+		if (!cpu_is_omap24xx())
+			goto bad;
+		omap_cfg_reg(AA4_24XX_USB2_TLLSE0);
+		/* NOTE: board-specific code must override this setting if
+		 * this TLL link is not using DP/DM.  Something must also
+		 * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED}
+		 */
+		syscon1 = 3;
+		CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_UNIDIR_TLL)
+					| USBT2TLL5PI;
 		break;
 	case 6:
+		if (cpu_is_omap24xx())
+			goto bad;
 		syscon1 = 3;
 		if (cpu_is_omap15xx()) {
 			omap_cfg_reg(USB2_VP);
@@ -266,6 +381,7 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
 		}
 		break;
 	default:
+bad:
 		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
 			2, nwires);
 	}
@@ -294,13 +410,13 @@ static struct resource udc_resources[] = {
 		.end		= UDC_BASE + 0xff,
 		.flags		= IORESOURCE_MEM,
 	}, {		/* general IRQ */
-		.start		= IH2_BASE + 20,
+		.start		= INT_USB_IRQ_GEN,
 		.flags		= IORESOURCE_IRQ,
 	}, {		/* PIO IRQ */
-		.start		= IH2_BASE + 30,
+		.start		= INT_USB_IRQ_NISO,
 		.flags		= IORESOURCE_IRQ,
 	}, {		/* SOF IRQ */
-		.start		= IH2_BASE + 29,
+		.start		= INT_USB_IRQ_ISO,
 		.flags		= IORESOURCE_IRQ,
 	},
 };
@@ -329,11 +445,11 @@ static u64 ohci_dmamask = ~(u32)0;
 static struct resource ohci_resources[] = {
 	{
 		.start	= OMAP_OHCI_BASE,
-		.end	= OMAP_OHCI_BASE + 4096 - 1,
+		.end	= OMAP_OHCI_BASE + 0xff,
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.start	= INT_USB_HHC_1,
+		.start	= INT_USB_IRQ_HGEN,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -361,7 +477,7 @@ static struct resource otg_resources[] = {
 		.end		= OTG_BASE + 0xff,
 		.flags		= IORESOURCE_MEM,
 	}, {
-		.start		= IH2_BASE + 8,
+		.start		= INT_USB_IRQ_OTG,
 		.flags		= IORESOURCE_IRQ,
 	},
 };
@@ -385,7 +501,7 @@ static struct platform_device otg_device = {
 
 
 // FIXME correct answer depends on hmc_mode,
-// as does any nonzero value for config->otg port number
+// as does (on omap1) any nonzero value for config->otg port number
 #ifdef	CONFIG_USB_GADGET_OMAP
 #define	is_usb0_device(config)	1
 #else
@@ -426,12 +542,13 @@ omap_otg_init(struct omap_usb_config *config)
 	if (config->otg)
 		syscon |= OTG_EN;
 #endif
-	pr_debug("USB_TRANSCEIVER_CTRL_REG = %03x\n", USB_TRANSCEIVER_CTRL_REG);
+	if (cpu_class_is_omap1())
+		pr_debug("USB_TRANSCEIVER_CTRL_REG = %03x\n", USB_TRANSCEIVER_CTRL_REG);
 	pr_debug("OTG_SYSCON_2_REG = %08x\n", syscon);
 	OTG_SYSCON_2_REG = syscon;
 
 	printk("USB: hmc %d", config->hmc_mode);
-	if (alt_pingroup)
+	if (!alt_pingroup)
 		printk(", usb2 alt %d wires", config->pins[2]);
 	else if (config->pins[0])
 		printk(", usb0 %d wires%s", config->pins[0],
@@ -444,10 +561,12 @@ omap_otg_init(struct omap_usb_config *config)
 		printk(", Mini-AB on usb%d", config->otg - 1);
 	printk("\n");
 
-	/* leave USB clocks/controllers off until needed */
-	ULPD_SOFT_REQ_REG &= ~SOFT_USB_CLK_REQ;
-	ULPD_CLOCK_CTRL_REG &= ~USB_MCLK_EN;
-	ULPD_CLOCK_CTRL_REG |= DIS_USB_PVCI_CLK;
+	if (cpu_class_is_omap1()) {
+		/* leave USB clocks/controllers off until needed */
+		ULPD_SOFT_REQ_REG &= ~SOFT_USB_CLK_REQ;
+		ULPD_CLOCK_CTRL_REG &= ~USB_MCLK_EN;
+		ULPD_CLOCK_CTRL_REG |= DIS_USB_PVCI_CLK;
+	}
 	syscon = OTG_SYSCON_1_REG;
 	syscon |= HST_IDLE_EN|DEV_IDLE_EN|OTG_IDLE_EN;
 
@@ -585,7 +704,7 @@ omap_usb_init(void)
 	}
 	platform_data = *config;
 
-	if (cpu_is_omap730() || cpu_is_omap16xx())
+	if (cpu_is_omap730() || cpu_is_omap16xx() || cpu_is_omap24xx())
 		omap_otg_init(&platform_data);
 	else if (cpu_is_omap15xx())
 		omap_1510_usb_init(&platform_data);
diff --git a/arch/arm/plat-s3c24xx/sleep.S b/arch/arm/plat-s3c24xx/sleep.S
index 435349dc324..7b7ae790b00 100644
--- a/arch/arm/plat-s3c24xx/sleep.S
+++ b/arch/arm/plat-s3c24xx/sleep.S
@@ -1,4 +1,4 @@
-/* linux/arch/arm/mach-s3c2410/sleep.S
+/* linux/arch/arm/plat-s3c24xx/sleep.S
  *
  * Copyright (c) 2004 Simtec Electronics
  *	Ben Dooks <ben@simtec.co.uk>
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index 6115fc1f0cf..dc6bc01f232 100644
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -16,7 +16,7 @@ AFLAGS		+= -mrelax -mno-pic
 CFLAGS_MODULE	+= -mno-relax
 LDFLAGS_vmlinux	+= --relax
 
-cpuflags-$(CONFIG_CPU_AP7000)	+= -mcpu=ap7000
+cpuflags-$(CONFIG_CPU_AT32AP7000)	+= -mcpu=ap7000
 
 CFLAGS		+= $(cpuflags-y)
 AFLAGS		+= $(cpuflags-y)
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 4e4181ed1c6..13f98840261 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -330,13 +330,13 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 {
 	struct pt_regs *childregs;
 
-	childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long)p->thread_info)) - 1;
+	childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long)task_stack_page(p))) - 1;
 	*childregs = *regs;
 
 	if (user_mode(regs))
 		childregs->sp = usp;
 	else
-		childregs->sp = (unsigned long)p->thread_info + THREAD_SIZE;
+		childregs->sp = (unsigned long)task_stack_page(p) + THREAD_SIZE;
 
 	childregs->r12 = 0; /* Set return value for child */
 
@@ -403,7 +403,7 @@ unsigned long get_wchan(struct task_struct *p)
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 
-	stack_page = (unsigned long)p->thread_info;
+	stack_page = (unsigned long)task_stack_page(p);
 	BUG_ON(!stack_page);
 
 	/*
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index 8ac74dddbbd..3c36c2d1614 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -24,7 +24,7 @@
 
 static struct pt_regs *get_user_regs(struct task_struct *tsk)
 {
-	return (struct pt_regs *)((unsigned long) tsk->thread_info +
+	return (struct pt_regs *)((unsigned long)task_stack_page(tsk) +
 				  THREAD_SIZE - sizeof(struct pt_regs));
 }
 
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index 7c279586fbb..07f6a6fa340 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -291,4 +291,5 @@ sys_call_table:
 	.long	sys_shmget		/* 275 */
 	.long	sys_shmdt
 	.long	sys_shmctl
+	.long	sys_utimensat
 	.long	sys_ni_syscall		/* r8 is saturated at nr_syscalls */
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
index 4de9edf96ed..86d107511dd 100644
--- a/arch/avr32/kernel/traps.c
+++ b/arch/avr32/kernel/traps.c
@@ -123,7 +123,7 @@ asmlinkage void do_address_exception(unsigned long ecr, struct pt_regs *regs)
 
 /* This way of handling undefined instructions is stolen from ARM */
 static LIST_HEAD(undef_hook);
-static spinlock_t undef_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(undef_lock);
 
 void register_undef_hook(struct undef_hook *hook)
 {
diff --git a/arch/avr32/kernel/vmlinux.lds.c b/arch/avr32/kernel/vmlinux.lds.c
index 7ad20cfb48a..e7f72c995a3 100644
--- a/arch/avr32/kernel/vmlinux.lds.c
+++ b/arch/avr32/kernel/vmlinux.lds.c
@@ -35,7 +35,7 @@ SECTIONS
 			_einittext = .;
 		. = ALIGN(4);
 		__tagtable_begin = .;
-			*(.taglist)
+			*(.taglist.init)
 		__tagtable_end = .;
 			*(.init.data)
 		. = ALIGN(16);
diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c
index 00c435452d7..0f8c89c9f83 100644
--- a/arch/avr32/mach-at32ap/clock.c
+++ b/arch/avr32/mach-at32ap/clock.c
@@ -18,7 +18,7 @@
 
 #include "clock.h"
 
-static spinlock_t clk_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(clk_lock);
 
 struct clk *clk_get(struct device *dev, const char *id)
 {
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index b68d669f823..099212d4567 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -112,16 +112,21 @@ void dma_free_coherent(struct device *dev, size_t size,
 }
 EXPORT_SYMBOL(dma_free_coherent);
 
-#if 0
 void *dma_alloc_writecombine(struct device *dev, size_t size,
 			     dma_addr_t *handle, gfp_t gfp)
 {
 	struct page *page;
+	dma_addr_t phys;
 
 	page = __dma_alloc(dev, size, handle, gfp);
+	if (!page)
+		return NULL;
+
+	phys = page_to_phys(page);
+	*handle = phys;
 
 	/* Now, map the page into P3 with write-combining turned on */
-	return __ioremap(page_to_phys(page), size, _PAGE_BUFFER);
+	return __ioremap(phys, size, _PAGE_BUFFER);
 }
 EXPORT_SYMBOL(dma_alloc_writecombine);
 
@@ -132,8 +137,7 @@ void dma_free_writecombine(struct device *dev, size_t size,
 
 	iounmap(cpu_addr);
 
-	page = bus_to_page(handle);
+	page = phys_to_page(handle);
 	__dma_free(dev, size, page, handle);
 }
 EXPORT_SYMBOL(dma_free_writecombine);
-#endif
diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c
index 41d9a9f8970..e455f450450 100644
--- a/arch/blackfin/kernel/asm-offsets.c
+++ b/arch/blackfin/kernel/asm-offsets.c
@@ -46,7 +46,7 @@ int main(void)
 	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
 	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
 	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
-	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info));
+	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
 	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
 	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
 	DEFINE(TASK_SIGPENDING, offsetof(struct task_struct, pending));
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index d7c8e514cb9..e718bb4a1ef 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -73,7 +73,7 @@
 static inline struct pt_regs *get_user_regs(struct task_struct *task)
 {
 	return (struct pt_regs *)
-	    ((unsigned long)task->thread_info +
+	    ((unsigned long)task_stack_page(task) +
 	     (THREAD_SIZE - sizeof(struct pt_regs)));
 }
 
@@ -99,7 +99,7 @@ static inline long get_reg(struct task_struct *task, int regno)
 	unsigned char *reg_ptr;
 
 	struct pt_regs *regs =
-	    (struct pt_regs *)((unsigned long)task->thread_info +
+	    (struct pt_regs *)((unsigned long)task_stack_page(task) +
 			       (THREAD_SIZE - sizeof(struct pt_regs)));
 	reg_ptr = (char *)regs;
 
@@ -125,7 +125,7 @@ put_reg(struct task_struct *task, int regno, unsigned long data)
 	char * reg_ptr;
 
 	struct pt_regs *regs =
-	    (struct pt_regs *)((unsigned long)task->thread_info +
+	    (struct pt_regs *)((unsigned long)task_stack_page(task) +
 			       (THREAD_SIZE - sizeof(struct pt_regs)));
 	reg_ptr = (char *)regs;
 
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index f64624fc450..1d859c16931 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -603,7 +603,7 @@ config ETRAX_CARDBUS
         select HOTPLUG
         select PCCARD_NONSTATIC
         help
-	 Enabled the ETRAX Carbus driver.
+	 Enabled the ETRAX Cardbus driver.
 
 config PCI
        bool
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index eed694312a7..114738a4558 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -45,15 +45,15 @@ config TIME_LOW_RES
 	bool
 	default y
 
-config ARCH_HAS_ILOG2_U32
+config QUICKLIST
 	bool
 	default y
 
-config ARCH_HAS_ILOG2_U64
+config ARCH_HAS_ILOG2_U32
 	bool
 	default y
 
-config ARCH_USES_SLAB_PAGE_STRUCT
+config ARCH_HAS_ILOG2_U64
 	bool
 	default y
 
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 515a5cea546..9583a338e9d 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -25,12 +25,14 @@
 #include <linux/elf.h>
 #include <linux/reboot.h>
 #include <linux/interrupt.h>
+#include <linux/pagemap.h>
 
 #include <asm/asm-offsets.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
 #include <asm/setup.h>
 #include <asm/pgtable.h>
+#include <asm/tlb.h>
 #include <asm/gdb-stub.h>
 #include <asm/mb-regs.h>
 
@@ -88,6 +90,8 @@ void cpu_idle(void)
 		while (!need_resched()) {
 			irq_stat[cpu].idle_timestamp = jiffies;
 
+			check_pgt_cache();
+
 			if (!frv_dma_inprogress && idle)
 				idle();
 		}
diff --git a/arch/frv/mm/pgalloc.c b/arch/frv/mm/pgalloc.c
index 598a26ab8ad..7787c3cc52c 100644
--- a/arch/frv/mm/pgalloc.c
+++ b/arch/frv/mm/pgalloc.c
@@ -13,12 +13,12 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
+#include <linux/quicklist.h>
 #include <asm/pgalloc.h>
 #include <asm/page.h>
 #include <asm/cacheflush.h>
 
 pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((aligned(PAGE_SIZE)));
-struct kmem_cache *pgd_cache;
 
 pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
@@ -100,7 +100,7 @@ static inline void pgd_list_del(pgd_t *pgd)
 		set_page_private(next, (unsigned long) pprev);
 }
 
-void pgd_ctor(void *pgd, struct kmem_cache *cache, unsigned long unused)
+void pgd_ctor(void *pgd)
 {
 	unsigned long flags;
 
@@ -120,7 +120,7 @@ void pgd_ctor(void *pgd, struct kmem_cache *cache, unsigned long unused)
 }
 
 /* never called when PTRS_PER_PMD > 1 */
-void pgd_dtor(void *pgd, struct kmem_cache *cache, unsigned long unused)
+void pgd_dtor(void *pgd)
 {
 	unsigned long flags; /* can be called from interrupt context */
 
@@ -133,7 +133,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 {
 	pgd_t *pgd;
 
-	pgd = kmem_cache_alloc(pgd_cache, GFP_KERNEL);
+	pgd = quicklist_alloc(0, GFP_KERNEL, pgd_ctor);
 	if (!pgd)
 		return pgd;
 
@@ -143,15 +143,15 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 void pgd_free(pgd_t *pgd)
 {
 	/* in the non-PAE case, clear_page_tables() clears user pgd entries */
-	kmem_cache_free(pgd_cache, pgd);
+ 	quicklist_free(0, pgd_dtor, pgd);
 }
 
 void __init pgtable_cache_init(void)
 {
-	pgd_cache = kmem_cache_create("pgd",
-				      PTRS_PER_PGD * sizeof(pgd_t),
-				      PTRS_PER_PGD * sizeof(pgd_t),
-				      SLAB_PANIC,
-				      pgd_ctor,
-				      pgd_dtor);
 }
+
+void check_pgt_cache(void)
+{
+	quicklist_trim(0, pgd_dtor, 25, 16);
+}
+
diff --git a/arch/h8300/Kconfig.debug b/arch/h8300/Kconfig.debug
index e0e9bcb015a..554efe604a0 100644
--- a/arch/h8300/Kconfig.debug
+++ b/arch/h8300/Kconfig.debug
@@ -21,12 +21,12 @@ config GDB_MAGICPRINT
 	bool "Message Output for GDB MagicPrint service"
 	depends on (H8300H_SIM || H8S_SIM)
 	help
-	  kernel messages output useing MagicPrint service from GDB
+	  kernel messages output using MagicPrint service from GDB
 
 config SYSCALL_PRINT
 	bool "SystemCall trace print"
 	help
-	  outout history of systemcall
+	  output history of systemcall
 
 config GDB_DEBUG
    	bool "Use gdb stub"
diff --git a/arch/h8300/kernel/asm-offsets.c b/arch/h8300/kernel/asm-offsets.c
index b78b82ad28a..fc30b4fd091 100644
--- a/arch/h8300/kernel/asm-offsets.c
+++ b/arch/h8300/kernel/asm-offsets.c
@@ -30,7 +30,7 @@ int main(void)
 	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
 	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
 	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
-	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info));
+	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
 	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
 	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
 
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 64ad10f984a..30944ee2e61 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -858,9 +858,9 @@ config RELOCATABLE
 	bool "Build a relocatable kernel(EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	help
-	  This build a kernel image that retains relocation information
+	  This builds a kernel image that retains relocation information
           so it can be loaded someplace besides the default 1MB.
-	  The relocations tend to the kernel binary about 10% larger,
+	  The relocations tend to make the kernel binary about 10% larger,
           but are discarded at runtime.
 
 	  One use is for the kexec on panic case where the recovery kernel
diff --git a/arch/i386/Kconfig.cpu b/arch/i386/Kconfig.cpu
index dce6124cb84..d7f6fb0b30f 100644
--- a/arch/i386/Kconfig.cpu
+++ b/arch/i386/Kconfig.cpu
@@ -108,7 +108,7 @@ config MCORE2
 	bool "Core 2/newer Xeon"
 	help
 	  Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx)
-	  CPUs. You can distingush newer from older Xeons by the CPU family
+	  CPUs. You can distinguish newer from older Xeons by the CPU family
 	  in /proc/cpuinfo. Newer ones have 6.
 
 config MPENTIUM4
@@ -172,7 +172,7 @@ config MWINCHIP3D
 	help
 	  Select this for an IDT Winchip-2A or 3.  Linux and GCC
 	  treat this chip as a 586TSC with some extended instructions
-	  and alignment reqirements.  Also enable out of order memory
+	  and alignment requirements.  Also enable out of order memory
 	  stores for this CPU, which can increase performance of some
 	  operations.
 
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index 80b4c5d421b..e5be819492e 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -733,9 +733,11 @@ static int __cpuinit cacheinfo_cpu_callback(struct notifier_block *nfb,
 	sys_dev = get_cpu_sysdev(cpu);
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		cache_add_dev(sys_dev);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		cache_remove_dev(sys_dev);
 		break;
 	}
diff --git a/arch/i386/kernel/cpu/mcheck/therm_throt.c b/arch/i386/kernel/cpu/mcheck/therm_throt.c
index 065005c3f16..7ba7c3abd3a 100644
--- a/arch/i386/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/i386/kernel/cpu/mcheck/therm_throt.c
@@ -1,5 +1,5 @@
 /*
- * linux/arch/i386/kerne/cpu/mcheck/therm_throt.c
+ * linux/arch/i386/kernel/cpu/mcheck/therm_throt.c
  *
  * Thermal throttle event support code (such as syslog messaging and rate
  * limiting) that was factored out from x86_64 (mce_intel.c) and i386 (p4.c).
@@ -137,10 +137,12 @@ static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb,
 	mutex_lock(&therm_cpu_lock);
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		err = thermal_throttle_add_dev(sys_dev);
 		WARN_ON(err);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		thermal_throttle_remove_dev(sys_dev);
 		break;
 	}
diff --git a/arch/i386/kernel/cpu/transmeta.c b/arch/i386/kernel/cpu/transmeta.c
index 6471a5a1320..200fb3f9ebf 100644
--- a/arch/i386/kernel/cpu/transmeta.c
+++ b/arch/i386/kernel/cpu/transmeta.c
@@ -77,8 +77,10 @@ static void __cpuinit init_transmeta(struct cpuinfo_x86 *c)
 	set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
 	
 	/* If we can run i686 user-space code, call us an i686 */
-#define USER686 (X86_FEATURE_TSC|X86_FEATURE_CX8|X86_FEATURE_CMOV)
-        if ( c->x86 == 5 && (c->x86_capability[0] & USER686) == USER686 )
+#define USER686 ((1 << X86_FEATURE_TSC)|\
+		 (1 << X86_FEATURE_CX8)|\
+		 (1 << X86_FEATURE_CMOV))
+        if (c->x86 == 5 && (c->x86_capability[0] & USER686) == USER686)
 		c->x86 = 6;
 
 #ifdef CONFIG_SYSCTL
diff --git a/arch/i386/kernel/cpuid.c b/arch/i386/kernel/cpuid.c
index eeae0d99233..5c2faa10e9f 100644
--- a/arch/i386/kernel/cpuid.c
+++ b/arch/i386/kernel/cpuid.c
@@ -169,9 +169,11 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb, unsigned long ac
 
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		cpuid_device_create(cpu);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
 		break;
 	}
diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c
index cbe7ec8dbb9..83f825f2e2d 100644
--- a/arch/i386/kernel/microcode.c
+++ b/arch/i386/kernel/microcode.c
@@ -567,7 +567,7 @@ static int cpu_request_microcode(int cpu)
 	return error;
 }
 
-static int apply_microcode_on_cpu(int cpu)
+static int apply_microcode_check_cpu(int cpu)
 {
 	struct cpuinfo_x86 *c = cpu_data + cpu;
 	struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
@@ -575,8 +575,9 @@ static int apply_microcode_on_cpu(int cpu)
 	unsigned int val[2];
 	int err = 0;
 
+	/* Check if the microcode is available */
 	if (!uci->mc)
-		return -EINVAL;
+		return 0;
 
 	old = current->cpus_allowed;
 	set_cpus_allowed(current, cpumask_of_cpu(cpu));
@@ -614,7 +615,7 @@ static int apply_microcode_on_cpu(int cpu)
 	return err;
 }
 
-static void microcode_init_cpu(int cpu)
+static void microcode_init_cpu(int cpu, int resume)
 {
 	cpumask_t old;
 	struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
@@ -624,8 +625,7 @@ static void microcode_init_cpu(int cpu)
 	set_cpus_allowed(current, cpumask_of_cpu(cpu));
 	mutex_lock(&microcode_mutex);
 	collect_cpu_info(cpu);
-	if (uci->valid && system_state == SYSTEM_RUNNING &&
-	    !suspend_cpu_hotplug)
+	if (uci->valid && system_state == SYSTEM_RUNNING && !resume)
 		cpu_request_microcode(cpu);
 	mutex_unlock(&microcode_mutex);
 	set_cpus_allowed(current, old);
@@ -702,7 +702,7 @@ static struct attribute_group mc_attr_group = {
 	.name = "microcode",
 };
 
-static int mc_sysdev_add(struct sys_device *sys_dev)
+static int __mc_sysdev_add(struct sys_device *sys_dev, int resume)
 {
 	int err, cpu = sys_dev->id;
 	struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
@@ -711,39 +711,31 @@ static int mc_sysdev_add(struct sys_device *sys_dev)
 		return 0;
 
 	pr_debug("Microcode:CPU %d added\n", cpu);
-	/* If suspend_cpu_hotplug is set, the system is resuming and we should
-	 * use the data from before the suspend.
-	 */
-	if (suspend_cpu_hotplug) {
-		err = apply_microcode_on_cpu(cpu);
-		if (err)
-			microcode_fini_cpu(cpu);
-	}
-	if (!uci->valid)
-		memset(uci, 0, sizeof(*uci));
+	memset(uci, 0, sizeof(*uci));
 
 	err = sysfs_create_group(&sys_dev->kobj, &mc_attr_group);
 	if (err)
 		return err;
 
-	if (!uci->valid)
-		microcode_init_cpu(cpu);
+	microcode_init_cpu(cpu, resume);
 
 	return 0;
 }
 
+static int mc_sysdev_add(struct sys_device *sys_dev)
+{
+	return __mc_sysdev_add(sys_dev, 0);
+}
+
 static int mc_sysdev_remove(struct sys_device *sys_dev)
 {
 	int cpu = sys_dev->id;
 
 	if (!cpu_online(cpu))
 		return 0;
+
 	pr_debug("Microcode:CPU %d removed\n", cpu);
-	/* If suspend_cpu_hotplug is set, the system is suspending and we should
-	 * keep the microcode in memory for the resume.
-	 */
-	if (!suspend_cpu_hotplug)
-		microcode_fini_cpu(cpu);
+	microcode_fini_cpu(cpu);
 	sysfs_remove_group(&sys_dev->kobj, &mc_attr_group);
 	return 0;
 }
@@ -774,13 +766,34 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
 
 	sys_dev = get_cpu_sysdev(cpu);
 	switch (action) {
+	case CPU_UP_CANCELED_FROZEN:
+		/* The CPU refused to come up during a system resume */
+		microcode_fini_cpu(cpu);
+		break;
 	case CPU_ONLINE:
 	case CPU_DOWN_FAILED:
 		mc_sysdev_add(sys_dev);
 		break;
+	case CPU_ONLINE_FROZEN:
+		/* System-wide resume is in progress, try to apply microcode */
+		if (apply_microcode_check_cpu(cpu)) {
+			/* The application of microcode failed */
+			microcode_fini_cpu(cpu);
+			__mc_sysdev_add(sys_dev, 1);
+			break;
+		}
+	case CPU_DOWN_FAILED_FROZEN:
+		if (sysfs_create_group(&sys_dev->kobj, &mc_attr_group))
+			printk(KERN_ERR "Microcode: Failed to create the sysfs "
+				"group for CPU%d\n", cpu);
+		break;
 	case CPU_DOWN_PREPARE:
 		mc_sysdev_remove(sys_dev);
 		break;
+	case CPU_DOWN_PREPARE_FROZEN:
+		/* Suspend is in progress, only remove the interface */
+		sysfs_remove_group(&sys_dev->kobj, &mc_attr_group);
+		break;
 	}
 	return NOTIFY_OK;
 }
diff --git a/arch/i386/kernel/msr.c b/arch/i386/kernel/msr.c
index 8cd0a91ce10..0c1069b8d63 100644
--- a/arch/i386/kernel/msr.c
+++ b/arch/i386/kernel/msr.c
@@ -153,9 +153,11 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
 
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		msr_device_create(cpu);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
 		break;
 	}
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 4bec0cbf407..c05e7e861b2 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -305,7 +305,7 @@ void show_registers(struct pt_regs *regs)
 	       regs->xds & 0xffff, regs->xes & 0xffff, regs->xfs & 0xffff, gs, ss);
 	printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)",
 		TASK_COMM_LEN, current->comm, current->pid,
-		current_thread_info(), current, current->thread_info);
+		current_thread_info(), current, task_thread_info(current));
 	/*
 	 * When in-kernel, we also print out the stack and code at the
 	 * time of the fault..
diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c
index a7b3999bb37..74f3da63442 100644
--- a/arch/i386/mach-generic/probe.c
+++ b/arch/i386/mach-generic/probe.c
@@ -119,9 +119,7 @@ int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 	return 0;	
 }
 
-#ifdef CONFIG_SMP
 int hard_smp_processor_id(void)
 {
 	return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID));
 }
-#endif
diff --git a/arch/i386/mach-voyager/voyager_basic.c b/arch/i386/mach-voyager/voyager_basic.c
index 8fe7e4593d5..9b77b39b71a 100644
--- a/arch/i386/mach-voyager/voyager_basic.c
+++ b/arch/i386/mach-voyager/voyager_basic.c
@@ -292,8 +292,8 @@ machine_emergency_restart(void)
 void
 mca_nmi_hook(void)
 {
-	__u8 dumpval __attribute__((unused)) = inb(0xf823);
-	__u8 swnmi __attribute__((unused)) = inb(0xf813);
+	__u8 dumpval __maybe_unused = inb(0xf823);
+	__u8 swnmi __maybe_unused = inb(0xf813);
 
 	/* FIXME: assume dump switch pressed */
 	/* check to see if the dump switch was pressed */
diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c
index 1cf11af96de..3de9f9ba2da 100644
--- a/arch/i386/pci/init.c
+++ b/arch/i386/pci/init.c
@@ -6,7 +6,7 @@
    in the right sequence from here. */
 static __init int pci_access_init(void)
 {
-	int type __attribute__((unused)) = 0;
+	int type __maybe_unused = 0;
 
 #ifdef CONFIG_PCI_DIRECT
 	type = pci_direct_probe();
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index e23af4b6ae8..6e41471449c 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -468,7 +468,7 @@ config KEXEC
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
-	  but it is indepedent of the system firmware.   And like a reboot
+	  but it is independent of the system firmware.   And like a reboot
 	  you can start any kernel with it, not just Linux.
 
 	  The name comes from the similiarity to the exec system call.
diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index 687e5fdc968..99b665e2b1d 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -52,43 +52,6 @@ ENTRY(ia32_clone)
 	br.ret.sptk.many rp
 END(ia32_clone)
 
-ENTRY(sys32_rt_sigsuspend)
-	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
-	alloc loc1=ar.pfs,8,2,3,0		// preserve all eight input regs
-	mov loc0=rp
-	mov out0=in0				// mask
-	mov out1=in1				// sigsetsize
-	mov out2=sp				// out2 = &sigscratch
-	.fframe 16
-	adds sp=-16,sp				// allocate dummy "sigscratch"
-	;;
-	.body
-	br.call.sptk.many rp=ia32_rt_sigsuspend
-1:	.restore sp
-	adds sp=16,sp
-	mov rp=loc0
-	mov ar.pfs=loc1
-	br.ret.sptk.many rp
-END(sys32_rt_sigsuspend)
-
-ENTRY(sys32_sigsuspend)
-	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
-	alloc loc1=ar.pfs,8,2,3,0		// preserve all eight input regs
-	mov loc0=rp
-	mov out0=in2				// mask (first two args are ignored)
-	;;
-	mov out1=sp				// out1 = &sigscratch
-	.fframe 16
-	adds sp=-16,sp				// allocate dummy "sigscratch"
-	.body
-	br.call.sptk.many rp=ia32_sigsuspend
-1:	.restore sp
-	adds sp=16,sp
-	mov rp=loc0
-	mov ar.pfs=loc1
-	br.ret.sptk.many rp
-END(sys32_sigsuspend)
-
 GLOBAL_ENTRY(ia32_ret_from_clone)
 	PT_REGS_UNWIND_INFO(0)
 {	/*
@@ -389,7 +352,7 @@ ia32_syscall_table:
 	data8 sys_rt_sigpending
 	data8 compat_sys_rt_sigtimedwait
 	data8 sys32_rt_sigqueueinfo
-	data8 sys32_rt_sigsuspend
+	data8 compat_sys_rt_sigsuspend
 	data8 sys32_pread	  /* 180 */
 	data8 sys32_pwrite
 	data8 sys_chown	/* 16-bit version */
diff --git a/arch/ia64/ia32/ia32_signal.c b/arch/ia64/ia32/ia32_signal.c
index 10510e58520..85e82f32e48 100644
--- a/arch/ia64/ia32/ia32_signal.c
+++ b/arch/ia64/ia32/ia32_signal.c
@@ -451,59 +451,20 @@ sigact_set_handler (struct k_sigaction *sa, unsigned int handler, unsigned int r
 		sa->sa.sa_handler = (__sighandler_t) (((unsigned long) restorer << 32) | handler);
 }
 
-long
-__ia32_rt_sigsuspend (compat_sigset_t *sset, unsigned int sigsetsize, struct sigscratch *scr)
+asmlinkage long
+sys32_sigsuspend (int history0, int history1, old_sigset_t mask)
 {
-	extern long ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall);
-	sigset_t oldset, set;
-
-	scr->scratch_unat = 0;	/* avoid leaking kernel bits to user level */
-	memset(&set, 0, sizeof(set));
-
-	memcpy(&set.sig, &sset->sig, sigsetsize);
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-
+	mask &= _BLOCKABLE;
 	spin_lock_irq(&current->sighand->siglock);
-	{
-		oldset = current->blocked;
-		current->blocked = set;
-		recalc_sigpending();
-	}
+	current->saved_sigmask = current->blocked;
+	siginitset(&current->blocked, mask);
+	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	/*
-	 * The return below usually returns to the signal handler.  We need to pre-set the
-	 * correct error code here to ensure that the right values get saved in sigcontext
-	 * by ia64_do_signal.
-	 */
-	scr->pt.r8 = -EINTR;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		if (ia64_do_signal(&oldset, scr, 1))
-			return -EINTR;
-	}
-}
-
-asmlinkage long
-ia32_rt_sigsuspend (compat_sigset_t __user *uset, unsigned int sigsetsize, struct sigscratch *scr)
-{
-	compat_sigset_t set;
-
-	if (sigsetsize > sizeof(compat_sigset_t))
-		return -EINVAL;
-
-	if (copy_from_user(&set.sig, &uset->sig, sigsetsize))
-		return -EFAULT;
-
-	return __ia32_rt_sigsuspend(&set, sigsetsize, scr);
-}
-
-asmlinkage long
-ia32_sigsuspend (unsigned int mask, struct sigscratch *scr)
-{
-	return __ia32_rt_sigsuspend((compat_sigset_t *) &mask, sizeof(mask), scr);
+	current->state = TASK_INTERRUPTIBLE;
+	schedule();
+	set_thread_flag(TIF_RESTORE_SIGMASK);
+	return -ERESTARTNOHAND;
 }
 
 asmlinkage long
@@ -810,7 +771,11 @@ get_sigframe (struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
 	}
 	/* Legacy stack switching not supported */
 
-	return (void __user *)((esp - frame_size) & -8ul);
+	esp -= frame_size;
+	/* Align the stack pointer according to the i386 ABI,
+	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
+	esp = ((esp + 4) & -16ul) - 4;
+	return (void __user *) esp;
 }
 
 static int
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 55fd2d5471e..b50bf208678 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1199,32 +1199,6 @@ ENTRY(notify_resume_user)
 	br.ret.sptk.many rp
 END(notify_resume_user)
 
-GLOBAL_ENTRY(sys_rt_sigsuspend)
-	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
-	alloc loc1=ar.pfs,8,2,3,0 // preserve all eight input regs in case of syscall restart!
-	mov r9=ar.unat
-	mov loc0=rp				// save return address
-	mov out0=in0				// mask
-	mov out1=in1				// sigsetsize
-	adds out2=8,sp				// out2=&sigscratch->ar_pfs
-	;;
-	.fframe 16
-	.spillsp ar.unat, 16
-	st8 [sp]=r9,-16				// allocate space for ar.unat and save it
-	st8 [out2]=loc1,-8			// save ar.pfs, out2=&sigscratch
-	.body
-	br.call.sptk.many rp=ia64_rt_sigsuspend
-.ret17:	.restore sp
-	adds sp=16,sp				// pop scratch stack space
-	;;
-	ld8 r9=[sp]				// load new unat from sw->caller_unat
-	mov rp=loc0
-	;;
-	mov ar.unat=r9
-	mov ar.pfs=loc1
-	br.ret.sptk.many rp
-END(sys_rt_sigsuspend)
-
 ENTRY(sys_rt_sigreturn)
 	PT_REGS_UNWIND_INFO(0)
 	/*
@@ -1598,8 +1572,8 @@ sys_call_table:
 	data8 sys_readlinkat
 	data8 sys_fchmodat
 	data8 sys_faccessat
-	data8 sys_ni_syscall			// reserved for pselect
-	data8 sys_ni_syscall			// 1295 reserved for ppoll
+	data8 sys_pselect6
+	data8 sys_ppoll
 	data8 sys_unshare
 	data8 sys_splice
 	data8 sys_set_robust_list
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index d3e9f33e8bd..6a49600cf33 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -236,9 +236,11 @@ static int __cpuinit err_inject_cpu_callback(struct notifier_block *nfb,
 	sys_dev = get_cpu_sysdev(cpu);
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		err_inject_add_dev(sys_dev);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		err_inject_remove_dev(sys_dev);
 		break;
 	}
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 93d9ab14ba2..37f46527d23 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -1012,7 +1012,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
 /*
  * ACPI calls this when it finds an entry for a legacy ISA IRQ override.
  */
-void __init
+void __devinit
 iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
 			  unsigned long polarity,
 			  unsigned long trigger)
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 1c5044a8095..bc47049f060 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -38,6 +38,7 @@
 #include <asm/machvec.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
+#include <asm/tlbflush.h>
 
 #ifdef CONFIG_PERFMON
 # include <asm/perfmon.h>
@@ -126,8 +127,10 @@ void destroy_irq(unsigned int irq)
 
 #ifdef CONFIG_SMP
 #	define IS_RESCHEDULE(vec)	(vec == IA64_IPI_RESCHEDULE)
+#	define IS_LOCAL_TLB_FLUSH(vec)	(vec == IA64_IPI_LOCAL_TLB_FLUSH)
 #else
 #	define IS_RESCHEDULE(vec)	(0)
+#	define IS_LOCAL_TLB_FLUSH(vec)	(0)
 #endif
 /*
  * That's where the IVT branches when we get an external
@@ -179,8 +182,11 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
 	saved_tpr = ia64_getreg(_IA64_REG_CR_TPR);
 	ia64_srlz_d();
 	while (vector != IA64_SPURIOUS_INT_VECTOR) {
-		if (unlikely(IS_RESCHEDULE(vector)))
-			 kstat_this_cpu.irqs[vector]++;
+		if (unlikely(IS_LOCAL_TLB_FLUSH(vector))) {
+			smp_local_flush_tlb();
+			kstat_this_cpu.irqs[vector]++;
+		} else if (unlikely(IS_RESCHEDULE(vector)))
+			kstat_this_cpu.irqs[vector]++;
 		else {
 			ia64_setreg(_IA64_REG_CR_TPR, vector);
 			ia64_srlz_d();
@@ -226,8 +232,11 @@ void ia64_process_pending_intr(void)
 	  * Perform normal interrupt style processing
 	  */
 	while (vector != IA64_SPURIOUS_INT_VECTOR) {
-		if (unlikely(IS_RESCHEDULE(vector)))
-			 kstat_this_cpu.irqs[vector]++;
+		if (unlikely(IS_LOCAL_TLB_FLUSH(vector))) {
+			smp_local_flush_tlb();
+			kstat_this_cpu.irqs[vector]++;
+		} else if (unlikely(IS_RESCHEDULE(vector)))
+			kstat_this_cpu.irqs[vector]++;
 		else {
 			struct pt_regs *old_regs = set_irq_regs(NULL);
 
@@ -259,12 +268,12 @@ void ia64_process_pending_intr(void)
 
 
 #ifdef CONFIG_SMP
-extern irqreturn_t handle_IPI (int irq, void *dev_id);
 
 static irqreturn_t dummy_handler (int irq, void *dev_id)
 {
 	BUG();
 }
+extern irqreturn_t handle_IPI (int irq, void *dev_id);
 
 static struct irqaction ipi_irqaction = {
 	.handler =	handle_IPI,
@@ -277,6 +286,13 @@ static struct irqaction resched_irqaction = {
 	.flags =	IRQF_DISABLED,
 	.name =		"resched"
 };
+
+static struct irqaction tlb_irqaction = {
+	.handler =	dummy_handler,
+	.flags =	IRQF_DISABLED,
+	.name =		"tlb_flush"
+};
+
 #endif
 
 void
@@ -302,6 +318,7 @@ init_IRQ (void)
 #ifdef CONFIG_SMP
 	register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction);
 	register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction);
+	register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction);
 #endif
 #ifdef CONFIG_PERFMON
 	pfm_init_percpu();
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 1d7cc7e2ce3..f8ae709de0b 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1689,7 +1689,7 @@ format_mca_init_stack(void *mca_data, unsigned long offset,
 	ti->preempt_count = 1;
 	ti->task = p;
 	ti->cpu = cpu;
-	p->thread_info = ti;
+	p->stack = ti;
 	p->state = TASK_UNINTERRUPTIBLE;
 	cpu_set(cpu, p->cpus_allowed);
 	INIT_LIST_HEAD(&p->tasks);
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index a71df9ae039..85829e27785 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -975,9 +975,11 @@ static int palinfo_cpu_callback(struct notifier_block *nfb,
 
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		create_palinfo_proc_entries(hotcpu);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		remove_palinfo_proc_entries(hotcpu);
 		break;
 	}
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 8bb571a8a73..d1c3ed9943e 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -155,7 +155,7 @@ show_regs (struct pt_regs *regs)
 }
 
 void
-do_notify_resume_user (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
+do_notify_resume_user (sigset_t *unused, struct sigscratch *scr, long in_syscall)
 {
 	if (fsys_mode(current, &scr->pt)) {
 		/* defer signal-handling etc. until we return to privilege-level 0.  */
@@ -170,8 +170,8 @@ do_notify_resume_user (sigset_t *oldset, struct sigscratch *scr, long in_syscall
 #endif
 
 	/* deal with pending signal delivery */
-	if (test_thread_flag(TIF_SIGPENDING))
-		ia64_do_signal(oldset, scr, in_syscall);
+	if (test_thread_flag(TIF_SIGPENDING)||test_thread_flag(TIF_RESTORE_SIGMASK))
+		ia64_do_signal(scr, in_syscall);
 }
 
 static int pal_halt        = 1;
@@ -236,6 +236,7 @@ void cpu_idle_wait(void)
 {
 	unsigned int cpu, this_cpu = get_cpu();
 	cpumask_t map;
+	cpumask_t tmp = current->cpus_allowed;
 
 	set_cpus_allowed(current, cpumask_of_cpu(this_cpu));
 	put_cpu();
@@ -257,6 +258,7 @@ void cpu_idle_wait(void)
 		}
 		cpus_and(map, map, cpu_online_map);
 	} while (!cpus_empty(map));
+	set_cpus_allowed(current, tmp);
 }
 EXPORT_SYMBOL_GPL(cpu_idle_wait);
 
diff --git a/arch/ia64/kernel/relocate_kernel.S b/arch/ia64/kernel/relocate_kernel.S
index ae473e3f2a0..903babd22d6 100644
--- a/arch/ia64/kernel/relocate_kernel.S
+++ b/arch/ia64/kernel/relocate_kernel.S
@@ -94,7 +94,7 @@ GLOBAL_ENTRY(relocate_new_kernel)
 4:
         srlz.i
         ;;
-	//purge TR entry for kernel text and data
+	// purge TR entry for kernel text and data
         movl r16=KERNEL_START
         mov r18=KERNEL_TR_PAGE_SHIFT<<2
         ;;
@@ -104,15 +104,6 @@ GLOBAL_ENTRY(relocate_new_kernel)
         srlz.i
         ;;
 
-	// purge TR entry for percpu data
-        movl r16=PERCPU_ADDR
-        mov r18=PERCPU_PAGE_SHIFT<<2
-        ;;
-        ptr.d r16,r18
-        ;;
-        srlz.d
-	;;
-
         // purge TR entry for pal code
         mov r16=in3
         mov r18=IA64_GRANULE_SHIFT<<2
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index a51f1d0bfb7..89f6b138a62 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -582,6 +582,7 @@ salinfo_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu
 	struct salinfo_data *data;
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		spin_lock_irqsave(&data_saved_lock, flags);
 		for (i = 0, data = salinfo_data;
 		     i < ARRAY_SIZE(salinfo_data);
@@ -592,6 +593,7 @@ salinfo_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu
 		spin_unlock_irqrestore(&data_saved_lock, flags);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		spin_lock_irqsave(&data_saved_lock, flags);
 		for (i = 0, data = salinfo_data;
 		     i < ARRAY_SIZE(salinfo_data);
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 6e19da122ae..9df1efe7487 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -786,7 +786,7 @@ identify_cpu (struct cpuinfo_ia64 *c)
 	c->unimpl_pa_mask = ~((1L<<63) | ((1L << phys_addr_size) - 1));
 }
 
-void
+void __init
 setup_per_cpu_areas (void)
 {
 	/* start_kernel() requires this... */
diff --git a/arch/ia64/kernel/sigframe.h b/arch/ia64/kernel/sigframe.h
index 37b986cb86e..9fd9a1933b3 100644
--- a/arch/ia64/kernel/sigframe.h
+++ b/arch/ia64/kernel/sigframe.h
@@ -22,4 +22,4 @@ struct sigframe {
 	struct sigcontext sc;
 };
 
-extern long ia64_do_signal (sigset_t *, struct sigscratch *, long);
+extern void ia64_do_signal (struct sigscratch *, long);
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index 0dcd56da600..aeec8184e86 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -40,47 +40,6 @@
 # define GET_SIGSET(k,u)	__get_user((k)->sig[0], &(u)->sig[0])
 #endif
 
-long
-ia64_rt_sigsuspend (sigset_t __user *uset, size_t sigsetsize, struct sigscratch *scr)
-{
-	sigset_t oldset, set;
-
-	/* XXX: Don't preclude handling different sized sigset_t's.  */
-	if (sigsetsize != sizeof(sigset_t))
-		return -EINVAL;
-
-	if (!access_ok(VERIFY_READ, uset, sigsetsize))
-		return -EFAULT;
-
-	if (GET_SIGSET(&set, uset))
-		return -EFAULT;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-
-	spin_lock_irq(&current->sighand->siglock);
-	{
-		oldset = current->blocked;
-		current->blocked = set;
-		recalc_sigpending();
-	}
-	spin_unlock_irq(&current->sighand->siglock);
-
-	/*
-	 * The return below usually returns to the signal handler.  We need to
-	 * pre-set the correct error code here to ensure that the right values
-	 * get saved in sigcontext by ia64_do_signal.
-	 */
-	scr->pt.r8 = EINTR;
-	scr->pt.r10 = -1;
-
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		if (ia64_do_signal(&oldset, scr, 1))
-			return -EINTR;
-	}
-}
-
 asmlinkage long
 sys_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, long arg2,
 		 long arg3, long arg4, long arg5, long arg6, long arg7,
@@ -477,10 +436,11 @@ handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigse
  * Note that `init' is a special process: it doesn't get signals it doesn't want to
  * handle.  Thus you cannot kill init even with a SIGKILL even by mistake.
  */
-long
-ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
+void
+ia64_do_signal (struct sigscratch *scr, long in_syscall)
 {
 	struct k_sigaction ka;
+	sigset_t *oldset;
 	siginfo_t info;
 	long restart = in_syscall;
 	long errno = scr->pt.r8;
@@ -492,9 +452,11 @@ ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
 	 * doing anything if so.
 	 */
 	if (!user_mode(&scr->pt))
-		return 0;
+		return;
 
-	if (!oldset)
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
 		oldset = &current->blocked;
 
 	/*
@@ -557,8 +519,15 @@ ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
 		 * Whee!  Actually deliver the signal.  If the delivery failed, we need to
 		 * continue to iterate in this loop so we can deliver the SIGSEGV...
 		 */
-		if (handle_signal(signr, &ka, &info, oldset, scr))
-			return 1;
+		if (handle_signal(signr, &ka, &info, oldset, scr)) {
+			/* a signal was successfully delivered; the saved
+			 * sigmask will have been stored in the signal frame,
+			 * and will be restored by sigreturn, so we can simply
+			 * clear the TIF_RESTORE_SIGMASK flag */
+			if (test_thread_flag(TIF_RESTORE_SIGMASK))
+				clear_thread_flag(TIF_RESTORE_SIGMASK);
+			return;
+		}
 	}
 
 	/* Did we come from a system call? */
@@ -584,5 +553,11 @@ ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
 			}
 		}
 	}
-	return 0;
+
+	/* if there's no signal to deliver, we just put the saved sigmask
+	 * back */
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
 }
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 55ddd809b02..221de380456 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -50,6 +50,18 @@
 #include <asm/mca.h>
 
 /*
+ * Note: alignment of 4 entries/cacheline was empirically determined
+ * to be a good tradeoff between hot cachelines & spreading the array
+ * across too many cacheline.
+ */
+static struct local_tlb_flush_counts {
+	unsigned int count;
+} __attribute__((__aligned__(32))) local_tlb_flush_counts[NR_CPUS];
+
+static DEFINE_PER_CPU(unsigned int, shadow_flush_counts[NR_CPUS]) ____cacheline_aligned;
+
+
+/*
  * Structure and data for smp_call_function(). This is designed to minimise static memory
  * requirements. It also looks cleaner.
  */
@@ -248,6 +260,62 @@ smp_send_reschedule (int cpu)
 	platform_send_ipi(cpu, IA64_IPI_RESCHEDULE, IA64_IPI_DM_INT, 0);
 }
 
+/*
+ * Called with preeemption disabled.
+ */
+static void
+smp_send_local_flush_tlb (int cpu)
+{
+	platform_send_ipi(cpu, IA64_IPI_LOCAL_TLB_FLUSH, IA64_IPI_DM_INT, 0);
+}
+
+void
+smp_local_flush_tlb(void)
+{
+	/*
+	 * Use atomic ops. Otherwise, the load/increment/store sequence from
+	 * a "++" operation can have the line stolen between the load & store.
+	 * The overhead of the atomic op in negligible in this case & offers
+	 * significant benefit for the brief periods where lots of cpus
+	 * are simultaneously flushing TLBs.
+	 */
+	ia64_fetchadd(1, &local_tlb_flush_counts[smp_processor_id()].count, acq);
+	local_flush_tlb_all();
+}
+
+#define FLUSH_DELAY	5 /* Usec backoff to eliminate excessive cacheline bouncing */
+
+void
+smp_flush_tlb_cpumask(cpumask_t xcpumask)
+{
+	unsigned int *counts = __ia64_per_cpu_var(shadow_flush_counts);
+	cpumask_t cpumask = xcpumask;
+	int mycpu, cpu, flush_mycpu = 0;
+
+	preempt_disable();
+	mycpu = smp_processor_id();
+
+	for_each_cpu_mask(cpu, cpumask)
+		counts[cpu] = local_tlb_flush_counts[cpu].count;
+
+	mb();
+	for_each_cpu_mask(cpu, cpumask) {
+		if (cpu == mycpu)
+			flush_mycpu = 1;
+		else
+			smp_send_local_flush_tlb(cpu);
+	}
+
+	if (flush_mycpu)
+		smp_local_flush_tlb();
+
+	for_each_cpu_mask(cpu, cpumask)
+		while(counts[cpu] == local_tlb_flush_counts[cpu].count)
+			udelay(FLUSH_DELAY);
+
+	preempt_enable();
+}
+
 void
 smp_flush_tlb_all (void)
 {
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 687500ddb4b..94ae3c87d82 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -412,9 +412,11 @@ static int __cpuinit cache_cpu_callback(struct notifier_block *nfb,
 	sys_dev = get_cpu_sysdev(cpu);
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		cache_add_dev(sys_dev);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		cache_remove_dev(sys_dev);
 		break;
 	}
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 5bfb8be02b7..b8e0d70bf98 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -43,9 +43,9 @@ die (const char *str, struct pt_regs *regs, long err)
 		u32 lock_owner;
 		int lock_owner_depth;
 	} die = {
-		.lock =			SPIN_LOCK_UNLOCKED,
-		.lock_owner =		-1,
-		.lock_owner_depth =	0
+		.lock =	__SPIN_LOCK_UNLOCKED(die.lock),
+		.lock_owner = -1,
+		.lock_owner_depth = 0
 	};
 	static int die_counter;
 	int cpu = get_cpu();
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index 93d5a3b41f6..fe1426266b9 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -60,6 +60,7 @@
 #  define UNW_DEBUG_ON(n)	unw_debug_level >= n
    /* Do not code a printk level, not all debug lines end in newline */
 #  define UNW_DPRINT(n, ...)  if (UNW_DEBUG_ON(n)) printk(__VA_ARGS__)
+#  undef inline
 #  define inline
 #else /* !UNW_DEBUG */
 #  define UNW_DEBUG_ON(n)  0
@@ -145,7 +146,7 @@ static struct {
 # endif
 } unw = {
 	.tables = &unw.kernel_table,
-	.lock = SPIN_LOCK_UNLOCKED,
+	.lock = __SPIN_LOCK_UNLOCKED(unw.lock),
 	.save_order = {
 		UNW_REG_RP, UNW_REG_PFS, UNW_REG_PSP, UNW_REG_PR,
 		UNW_REG_UNAT, UNW_REG_LC, UNW_REG_FPSR, UNW_REG_PRI_UNAT_GR
@@ -1943,9 +1944,9 @@ EXPORT_SYMBOL(unw_unwind);
 int
 unw_unwind_to_user (struct unw_frame_info *info)
 {
-	unsigned long ip, sp, pr = 0;
+	unsigned long ip, sp, pr = info->pr;
 
-	while (unw_unwind(info) >= 0) {
+	do {
 		unw_get_sp(info, &sp);
 		if ((long)((unsigned long)info->task + IA64_STK_OFFSET - sp)
 		    < IA64_PT_REGS_SIZE) {
@@ -1963,7 +1964,7 @@ unw_unwind_to_user (struct unw_frame_info *info)
 				__FUNCTION__, ip);
 			return -1;
 		}
-	}
+	} while (unw_unwind(info) >= 0);
 	unw_get_ip(info, &ip);
 	UNW_DPRINT(0, "unwind.%s: failed to unwind to user-level (ip=0x%lx)\n",
 		   __FUNCTION__, ip);
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index ffad7624436..fa4e6d4810f 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -32,9 +32,9 @@ static struct {
 } purge;
 
 struct ia64_ctx ia64_ctx = {
-	.lock =		SPIN_LOCK_UNLOCKED,
-	.next =		1,
-	.max_ctx =	~0U
+	.lock =	__SPIN_LOCK_UNLOCKED(ia64_ctx.lock),
+	.next =	1,
+	.max_ctx = ~0U
 };
 
 DEFINE_PER_CPU(u8, ia64_need_tlb_flush);
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index 8d2a1bfbfe7..7f6d2360a26 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -59,6 +59,22 @@ void sn_intr_free(nasid_t local_nasid, int local_widget,
 			(u64) sn_irq_info->irq_cookie, 0, 0);
 }
 
+u64 sn_intr_redirect(nasid_t local_nasid, int local_widget,
+		      struct sn_irq_info *sn_irq_info,
+		      nasid_t req_nasid, int req_slice)
+{
+	struct ia64_sal_retval ret_stuff;
+	ret_stuff.status = 0;
+	ret_stuff.v0 = 0;
+
+	SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_INTERRUPT,
+			(u64) SAL_INTR_REDIRECT, (u64) local_nasid,
+			(u64) local_widget, __pa(sn_irq_info),
+			(u64) req_nasid, (u64) req_slice, 0);
+
+	return ret_stuff.status;
+}
+
 static unsigned int sn_startup_irq(unsigned int irq)
 {
 	return 0;
@@ -127,15 +143,8 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
 	struct sn_irq_info *new_irq_info;
 	struct sn_pcibus_provider *pci_provider;
 
-	new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
-	if (new_irq_info == NULL)
-		return NULL;
-
-	memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
-
-	bridge = (u64) new_irq_info->irq_bridge;
+	bridge = (u64) sn_irq_info->irq_bridge;
 	if (!bridge) {
-		kfree(new_irq_info);
 		return NULL; /* irq is not a device interrupt */
 	}
 
@@ -145,8 +154,25 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
 		local_widget = TIO_SWIN_WIDGETNUM(bridge);
 	else
 		local_widget = SWIN_WIDGETNUM(bridge);
-
 	vector = sn_irq_info->irq_irq;
+
+	/* Make use of SAL_INTR_REDIRECT if PROM supports it */
+	status = sn_intr_redirect(local_nasid, local_widget, sn_irq_info, nasid, slice);
+	if (!status) {
+		new_irq_info = sn_irq_info;
+		goto finish_up;
+	}
+
+	/*
+	 * PROM does not support SAL_INTR_REDIRECT, or it failed.
+	 * Revert to old method.
+	 */
+	new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
+	if (new_irq_info == NULL)
+		return NULL;
+
+	memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
+
 	/* Free the old PROM new_irq_info structure */
 	sn_intr_free(local_nasid, local_widget, new_irq_info);
 	unregister_intr_pda(new_irq_info);
@@ -162,11 +188,18 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
 		return NULL;
 	}
 
+	register_intr_pda(new_irq_info);
+	spin_lock(&sn_irq_info_lock);
+	list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
+	spin_unlock(&sn_irq_info_lock);
+	call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
+
+
+finish_up:
 	/* Update kernels new_irq_info with new target info */
 	cpuid = nasid_slice_to_cpuid(new_irq_info->irq_nasid,
 				     new_irq_info->irq_slice);
 	new_irq_info->irq_cpuid = cpuid;
-	register_intr_pda(new_irq_info);
 
 	pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
 
@@ -178,11 +211,6 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
 	    pci_provider && pci_provider->target_interrupt)
 		(pci_provider->target_interrupt)(new_irq_info);
 
-	spin_lock(&sn_irq_info_lock);
-	list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
-	spin_unlock(&sn_irq_info_lock);
-	call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
-
 #ifdef CONFIG_SMP
 	cpuphys = cpu_physical_id(cpuid);
 	set_irq_affinity_info((vector & 0xff), cpuphys, 0);
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index 601747b1e22..5d318b579fb 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -46,6 +46,9 @@ DECLARE_PER_CPU(struct ptc_stats, ptcstats);
 
 static  __cacheline_aligned DEFINE_SPINLOCK(sn2_global_ptc_lock);
 
+/* 0 = old algorithm (no IPI flushes), 1 = ipi deadlock flush, 2 = ipi instead of SHUB ptc, >2 = always ipi */
+static int sn2_flush_opt = 0;
+
 extern unsigned long
 sn2_ptc_deadlock_recovery_core(volatile unsigned long *, unsigned long,
 			       volatile unsigned long *, unsigned long,
@@ -76,6 +79,8 @@ struct ptc_stats {
 	unsigned long shub_itc_clocks;
 	unsigned long shub_itc_clocks_max;
 	unsigned long shub_ptc_flushes_not_my_mm;
+	unsigned long shub_ipi_flushes;
+	unsigned long shub_ipi_flushes_itc_clocks;
 };
 
 #define sn2_ptctest	0
@@ -121,6 +126,18 @@ void sn_tlb_migrate_finish(struct mm_struct *mm)
 		flush_tlb_mm(mm);
 }
 
+static void
+sn2_ipi_flush_all_tlb(struct mm_struct *mm)
+{
+	unsigned long itc;
+
+	itc = ia64_get_itc();
+	smp_flush_tlb_cpumask(mm->cpu_vm_mask);
+	itc = ia64_get_itc() - itc;
+	__get_cpu_var(ptcstats).shub_ipi_flushes_itc_clocks += itc;
+	__get_cpu_var(ptcstats).shub_ipi_flushes++;
+}
+
 /**
  * sn2_global_tlb_purge - globally purge translation cache of virtual address range
  * @mm: mm_struct containing virtual address range
@@ -154,7 +171,12 @@ sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start,
 	unsigned long itc, itc2, flags, data0 = 0, data1 = 0, rr_value, old_rr = 0;
 	short nasids[MAX_NUMNODES], nix;
 	nodemask_t nodes_flushed;
-	int active, max_active, deadlock;
+	int active, max_active, deadlock, flush_opt = sn2_flush_opt;
+
+	if (flush_opt > 2) {
+		sn2_ipi_flush_all_tlb(mm);
+		return;
+	}
 
 	nodes_clear(nodes_flushed);
 	i = 0;
@@ -189,6 +211,12 @@ sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start,
 		return;
 	}
 
+	if (flush_opt == 2) {
+		sn2_ipi_flush_all_tlb(mm);
+		preempt_enable();
+		return;
+	}
+
 	itc = ia64_get_itc();
 	nix = 0;
 	for_each_node_mask(cnode, nodes_flushed)
@@ -256,6 +284,8 @@ sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start,
 			}
 			if (active >= max_active || i == (nix - 1)) {
 				if ((deadlock = wait_piowc())) {
+					if (flush_opt == 1)
+						goto done;
 					sn2_ptc_deadlock_recovery(nasids, ibegin, i, mynasid, ptc0, data0, ptc1, data1);
 					if (reset_max_active_on_deadlock())
 						max_active = 1;
@@ -267,6 +297,7 @@ sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start,
 		start += (1UL << nbits);
 	} while (start < end);
 
+done:
 	itc2 = ia64_get_itc() - itc2;
 	__get_cpu_var(ptcstats).shub_itc_clocks += itc2;
 	if (itc2 > __get_cpu_var(ptcstats).shub_itc_clocks_max)
@@ -279,6 +310,11 @@ sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start,
 
 	spin_unlock_irqrestore(PTC_LOCK(shub1), flags);
 
+	if (flush_opt == 1 && deadlock) {
+		__get_cpu_var(ptcstats).deadlocks++;
+		sn2_ipi_flush_all_tlb(mm);
+	}
+
 	preempt_enable();
 }
 
@@ -425,24 +461,42 @@ static int sn2_ptc_seq_show(struct seq_file *file, void *data)
 
 	if (!cpu) {
 		seq_printf(file,
-			   "# cpu ptc_l newrid ptc_flushes nodes_flushed deadlocks lock_nsec shub_nsec shub_nsec_max not_my_mm deadlock2\n");
-		seq_printf(file, "# ptctest %d\n", sn2_ptctest);
+			   "# cpu ptc_l newrid ptc_flushes nodes_flushed deadlocks lock_nsec shub_nsec shub_nsec_max not_my_mm deadlock2 ipi_fluches ipi_nsec\n");
+		seq_printf(file, "# ptctest %d, flushopt %d\n", sn2_ptctest, sn2_flush_opt);
 	}
 
 	if (cpu < NR_CPUS && cpu_online(cpu)) {
 		stat = &per_cpu(ptcstats, cpu);
-		seq_printf(file, "cpu %d %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld\n", cpu, stat->ptc_l,
+		seq_printf(file, "cpu %d %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld\n", cpu, stat->ptc_l,
 				stat->change_rid, stat->shub_ptc_flushes, stat->nodes_flushed,
 				stat->deadlocks,
 				1000 * stat->lock_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec,
 				1000 * stat->shub_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec,
 				1000 * stat->shub_itc_clocks_max / per_cpu(cpu_info, cpu).cyc_per_usec,
 				stat->shub_ptc_flushes_not_my_mm,
-				stat->deadlocks2);
+				stat->deadlocks2,
+				stat->shub_ipi_flushes,
+				1000 * stat->shub_ipi_flushes_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec);
 	}
 	return 0;
 }
 
+static ssize_t sn2_ptc_proc_write(struct file *file, const char __user *user, size_t count, loff_t *data)
+{
+	int cpu;
+	char optstr[64];
+
+	if (copy_from_user(optstr, user, count))
+		return -EFAULT;
+	optstr[count - 1] = '\0';
+	sn2_flush_opt = simple_strtoul(optstr, NULL, 0);
+
+	for_each_online_cpu(cpu)
+		memset(&per_cpu(ptcstats, cpu), 0, sizeof(struct ptc_stats));
+
+	return count;
+}
+
 static struct seq_operations sn2_ptc_seq_ops = {
 	.start = sn2_ptc_seq_start,
 	.next = sn2_ptc_seq_next,
@@ -458,6 +512,7 @@ static int sn2_ptc_proc_open(struct inode *inode, struct file *file)
 static const struct file_operations proc_sn2_ptc_operations = {
 	.open = sn2_ptc_proc_open,
 	.read = seq_read,
+	.write = sn2_ptc_proc_write,
 	.llseek = seq_lseek,
 	.release = seq_release,
 };
diff --git a/arch/m68knommu/Kconfig.debug b/arch/m68knommu/Kconfig.debug
index 763c9aa0b4f..9ff47bd09ae 100644
--- a/arch/m68knommu/Kconfig.debug
+++ b/arch/m68knommu/Kconfig.debug
@@ -5,7 +5,7 @@ source "lib/Kconfig.debug"
 config FULLDEBUG
 	bool "Full Symbolic/Source Debugging support"
 	help
-	  Enable debuging symbols on kernel build.
+	  Enable debugging symbols on kernel build.
 
 config HIGHPROFILE
 	bool "Use fast second timer for profiling"
diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68knommu/kernel/asm-offsets.c
index b988c7bdc6e..7cd183d346e 100644
--- a/arch/m68knommu/kernel/asm-offsets.c
+++ b/arch/m68knommu/kernel/asm-offsets.c
@@ -31,7 +31,7 @@ int main(void)
 	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
 	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
 	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
-	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info));
+	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
 	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
 	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
 
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b7cb048bc77..16ecea3c081 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -956,7 +956,7 @@ choice
 	  byte order. These modes require different kernels and a different
 	  Linux distribution.  In general there is one preferred byteorder for a
 	  particular system but some systems are just as commonly used in the
-	  one or the other endianess.
+	  one or the other endianness.
 
 config CPU_BIG_ENDIAN
 	bool "Big endian"
@@ -1750,7 +1750,7 @@ config ARCH_DISCONTIGMEM_ENABLE
 	bool
 	default y if SGI_IP27
 	help
-	  Say Y to upport efficient handling of discontiguous physical memory,
+	  Say Y to support efficient handling of discontiguous physical memory,
 	  for architectures which are either NUMA (Non-Uniform Memory Access)
 	  or have huge holes in the physical address space for other reasons.
 	  See <file:Documentation/vm/numa> for more.
@@ -1938,7 +1938,7 @@ config KEXEC
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
-	  but it is indepedent of the system firmware.   And like a reboot
+	  but it is independent of the system firmware.   And like a reboot
 	  you can start any kernel with it, not just Linux.
 
 	  The name comes from the similiarity to the exec system call.
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index f2f742df32c..4892db88a86 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -92,7 +92,7 @@ cflags-y += -ffreestanding
 # when fed the toolchain default!
 #
 # Certain gcc versions upto gcc 4.1.1 (probably 4.2-subversion as of
-# 2006-10-10 don't properly change the the predefined symbols if -EB / -EL
+# 2006-10-10 don't properly change the predefined symbols if -EB / -EL
 # are used, so we kludge that here.  A bug has been filed at
 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
 #
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 761a779d5c4..3b27309d54b 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -82,7 +82,7 @@ void output_task_defines(void)
 {
 	text("/* MIPS task_struct offsets. */");
 	offset("#define TASK_STATE         ", struct task_struct, state);
-	offset("#define TASK_THREAD_INFO   ", struct task_struct, thread_info);
+	offset("#define TASK_THREAD_INFO   ", struct task_struct, stack);
 	offset("#define TASK_FLAGS         ", struct task_struct, flags);
 	offset("#define TASK_MM            ", struct task_struct, mm);
 	offset("#define TASK_PID           ", struct task_struct, pid);
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 5dcfab6b288..b361edb83dc 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -560,7 +560,7 @@ void smtc_boot_secondary(int cpu, struct task_struct *idle)
 	write_tc_gpr_sp(__KSTK_TOS(idle));
 
 	/* global pointer */
-	write_tc_gpr_gp((unsigned long)idle->thread_info);
+	write_tc_gpr_gp((unsigned long)task_thread_info(idle));
 
 	smtc_status |= SMTC_MTC_ACTIVE;
 	write_tc_c0_tchalt(0);
diff --git a/arch/mips/pci/fixup-sb1250.c b/arch/mips/pci/fixup-sb1250.c
index 7a7444874e8..0ad39e53f7b 100644
--- a/arch/mips/pci/fixup-sb1250.c
+++ b/arch/mips/pci/fixup-sb1250.c
@@ -14,7 +14,7 @@
 #include <linux/pci.h>
 
 /*
- * Set the the BCM1250, etc. PCI host bridge's TRDY timeout
+ * Set the BCM1250, etc. PCI host bridge's TRDY timeout
  * to the finite max.
  */
 static void __init quirk_sb1250_pci(struct pci_dev *dev)
@@ -35,7 +35,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_HT,
 			quirk_sb1250_ht);
 
 /*
- * Set the the SP1011 HT/PCI bridge's TRDY timeout to the finite max.
+ * Set the SP1011 HT/PCI bridge's TRDY timeout to the finite max.
  */
 static void __init quirk_sp1011(struct pci_dev *dev)
 {
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 54fdb959149..d3b7917a87c 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -54,7 +54,7 @@
 
 int main(void)
 {
-	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info));
+	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
 	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
 	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
 	DEFINE(TASK_SIGPENDING, offsetof(struct task_struct, pending));
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index f70e795c262..346cd3befe1 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -32,7 +32,7 @@ config HCALL_STATS
 	depends on PPC_PSERIES && DEBUG_FS
 	help
 	  Adds code to keep track of the number of hypervisor calls made and
-	  the amount of time spent in hypervisor callsr.  Wall time spent in
+	  the amount of time spent in hypervisor calls.  Wall time spent in
 	  each call is always calculated, and if available CPU cycles spent
 	  are also calculated.  A directory named hcall_inst is added at the
 	  root of the debugfs filesystem.  Within the hcall_inst directory
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index d6803fb7b28..2cb1d948779 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -58,7 +58,7 @@ int main(void)
 #ifdef CONFIG_PPC64
 	DEFINE(AUDITCONTEXT, offsetof(struct task_struct, audit_context));
 #else
-	DEFINE(THREAD_INFO, offsetof(struct task_struct, thread_info));
+	DEFINE(THREAD_INFO, offsetof(struct task_struct, stack));
 	DEFINE(PTRACE, offsetof(struct task_struct, ptrace));
 #endif /* CONFIG_PPC64 */
 
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index cae39d9dfe4..68991c2d4a1 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -342,10 +342,12 @@ static int __cpuinit sysfs_cpu_notify(struct notifier_block *self,
 
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		register_cpu_online(cpu);
 		break;
 #ifdef CONFIG_HOTPLUG_CPU
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		unregister_cpu_online(cpu);
 		break;
 #endif
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index b3a592b25ab..de45aa82d97 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -252,12 +252,15 @@ static int __cpuinit cpu_numa_callback(struct notifier_block *nfb,
 
 	switch (action) {
 	case CPU_UP_PREPARE:
+	case CPU_UP_PREPARE_FROZEN:
 		numa_setup_cpu(lcpu);
 		ret = NOTIFY_OK;
 		break;
 #ifdef CONFIG_HOTPLUG_CPU
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 	case CPU_UP_CANCELED:
+	case CPU_UP_CANCELED_FROZEN:
 		unmap_cpu_from_node(lcpu);
 		break;
 		ret = NOTIFY_OK;
diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c
index 626b29f3830..c29293befba 100644
--- a/arch/powerpc/oprofile/op_model_cell.c
+++ b/arch/powerpc/oprofile/op_model_cell.c
@@ -747,7 +747,7 @@ cell_handle_interrupt(struct pt_regs *regs, struct op_counter_config *ctr)
 		 * counter value etc.) are not copied to the actual registers
 		 * until the performance monitor is enabled.  In order to get
 		 * this to work as desired, the permormance monitor needs to
-		 * be disabled while writting to the latches.  This is a
+		 * be disabled while writing to the latches.  This is a
 		 * HW design issue.
 		 */
 		cbe_enable_pm(cpu);
diff --git a/arch/powerpc/platforms/8xx/mpc86xads_setup.c b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
index a35315af5c5..cf0e7bc8c2e 100644
--- a/arch/powerpc/platforms/8xx/mpc86xads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
@@ -1,4 +1,4 @@
-/*arch/ppc/platforms/mpc86xads-setup.c
+/*arch/powerpc/platforms/8xx/mpc86xads_setup.c
  *
  * Platform setup for the Freescale mpc86xads board
  *
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index a57b57785ac..c36e475d93d 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -1,4 +1,4 @@
-/*arch/ppc/platforms/mpc885ads-setup.c
+/*arch/powerpc/platforms/8xx/mpc885ads_setup.c
  *
  * Platform setup for the Freescale mpc885ads board
  *
diff --git a/arch/powerpc/platforms/cell/io-workarounds.c b/arch/powerpc/platforms/cell/io-workarounds.c
index d68d920eb2c..7fb92f23f38 100644
--- a/arch/powerpc/platforms/cell/io-workarounds.c
+++ b/arch/powerpc/platforms/cell/io-workarounds.c
@@ -74,7 +74,7 @@ static void spider_io_flush(const volatile void __iomem *addr)
 	/* Fast path if we have a non-0 token, it indicates which bus we
 	 * are on.
 	 *
-	 * If the token is 0, that means either the the ioremap was done
+	 * If the token is 0, that means either that the ioremap was done
 	 * before we initialized this layer, or it's a PIO operation. We
 	 * fallback to a low path in this case. Hopefully, internal devices
 	 * which are ioremap'ed early should use in_XX/out_XX functions
diff --git a/arch/ppc/kernel/asm-offsets.c b/arch/ppc/kernel/asm-offsets.c
index c5850a27265..e8e94321b59 100644
--- a/arch/ppc/kernel/asm-offsets.c
+++ b/arch/ppc/kernel/asm-offsets.c
@@ -35,7 +35,7 @@ int
 main(void)
 {
 	DEFINE(THREAD, offsetof(struct task_struct, thread));
-	DEFINE(THREAD_INFO, offsetof(struct task_struct, thread_info));
+	DEFINE(THREAD_INFO, offsetof(struct task_struct, stack));
 	DEFINE(MM, offsetof(struct task_struct, mm));
 	DEFINE(PTRACE, offsetof(struct task_struct, ptrace));
 	DEFINE(KSP, offsetof(struct thread_struct, ksp));
diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c
index 7ce5364fdb3..bf72204125c 100644
--- a/arch/ppc/platforms/mpc866ads_setup.c
+++ b/arch/ppc/platforms/mpc866ads_setup.c
@@ -1,4 +1,4 @@
-/*arch/ppc/platforms/mpc866ads-setup.c
+/*arch/ppc/platforms/mpc866ads_setup.c
  *
  * Platform setup for the Freescale mpc866ads board
  *
diff --git a/arch/ppc/syslib/ipic.c b/arch/ppc/syslib/ipic.c
index 10659c24b1b..9192777d0f7 100644
--- a/arch/ppc/syslib/ipic.c
+++ b/arch/ppc/syslib/ipic.c
@@ -1,5 +1,5 @@
 /*
- * include/asm-ppc/ipic.c
+ * arch/ppc/syslib/ipic.c
  *
  * IPIC routines implementations.
  *
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index ee89b33145d..81a2b92ab0c 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -567,9 +567,11 @@ appldata_cpu_notify(struct notifier_block *self,
 {
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		appldata_online_cpu((long) hcpu);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		appldata_offline_cpu((long) hcpu);
 		break;
 	default:
diff --git a/arch/s390/crypto/Kconfig b/arch/s390/crypto/Kconfig
index 99ff9f08e4d..d1defbbfcd8 100644
--- a/arch/s390/crypto/Kconfig
+++ b/arch/s390/crypto/Kconfig
@@ -54,7 +54,7 @@ config S390_PRNG
 	default "m"
 	help
 	  Select this option if you want to use the s390 pseudo random number
-	  generator. The PRNG is part of the cryptograhic processor functions
+	  generator. The PRNG is part of the cryptographic processor functions
 	  and uses triple-DES to generate secure random numbers like the
 	  ANSI X9.17 standard. The PRNG is usable via the char device
 	  /dev/prandom.
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index ec514fe5ccd..1375f8a4469 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -15,7 +15,7 @@
 
 int main(void)
 {
-	DEFINE(__THREAD_info, offsetof(struct task_struct, thread_info),);
+	DEFINE(__THREAD_info, offsetof(struct task_struct, stack),);
 	DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp),);
 	DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info),);
 	DEFINE(__THREAD_mm_segment,
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b7977027a28..09f028a3266 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -789,10 +789,12 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self,
 
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		if (sysdev_create_file(s, &attr_capability))
 			return NOTIFY_BAD;
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		sysdev_remove_file(s, &attr_capability);
 		break;
 	}
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d74eb120a9c..038179ecf6a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -52,6 +52,9 @@ config GENERIC_IOMAP
 config GENERIC_TIME
 	def_bool n
 
+config GENERIC_CLOCKEVENTS
+	def_bool n
+
 config SYS_SUPPORTS_APM_EMULATION
 	bool
 
@@ -436,11 +439,11 @@ endmenu
 
 menu "Timer and clock configuration"
 
-if !GENERIC_TIME
-
 config SH_TMU
 	bool "TMU timer support"
 	depends on CPU_SH3 || CPU_SH4
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
 	default y
 	help
 	  This enables the use of the TMU as the system timer.
@@ -459,8 +462,6 @@ config SH_MTU2
 	help
 	  This enables the use of the MTU2 as the system timer.
 
-endif
-
 config SH_TIMER_IRQ
 	int
 	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
@@ -468,24 +469,6 @@ config SH_TIMER_IRQ
 	default "140" if CPU_SUBTYPE_SH7206
 	default "16"
 
-config NO_IDLE_HZ
-	bool "Dynamic tick timer"
-	help
-	  Select this option if you want to disable continuous timer ticks
-	  and have them programmed to occur as required. This option saves
-	  power as the system can remain in idle state for longer.
-
-	  By default dynamic tick is disabled during the boot, and can be
-	  manually enabled with:
-
-	    echo 1 > /sys/devices/system/timer/timer0/dyn_tick
-
-	  Alternatively, if you want dynamic tick automatically enabled
-	  during boot, pass "dyntick=enable" via the kernel command string.
-
-	  Please note that dynamic tick may affect the accuracy of
-	  timekeeping on some platforms depending on the implementation.
-
 config SH_PCLK_FREQ
 	int "Peripheral clock frequency (in Hz)"
 	default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
@@ -509,6 +492,8 @@ config SH_CLK_MD
 	help
 	  MD2 - MD0 pin setting.
 
+source "kernel/time/Kconfig"
+
 endmenu
 
 menu "CPU Frequency scaling"
diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c
index a83a5d9587b..4058b4f50d4 100644
--- a/arch/sh/boards/landisk/setup.c
+++ b/arch/sh/boards/landisk/setup.c
@@ -93,6 +93,7 @@ static void __init landisk_setup(char **cmdline_p)
  */
 struct sh_machine_vector mv_landisk __initmv = {
 	.mv_name = "LANDISK",
+	.mv_nr_irqs = 72,
 	.mv_setup = landisk_setup,
 	.mv_init_irq = init_landisk_IRQ,
 };
diff --git a/arch/sh/boards/se/7751/setup.c b/arch/sh/boards/se/7751/setup.c
index 770defed9c4..52c7bfa57c2 100644
--- a/arch/sh/boards/se/7751/setup.c
+++ b/arch/sh/boards/se/7751/setup.c
@@ -1,5 +1,5 @@
 /*
- * linux/arch/sh/kernel/setup_7751se.c
+ * linux/arch/sh/boards/se/7751/setup.c
  *
  * Copyright (C) 2000  Kazumoto Kojima
  *
diff --git a/arch/sh/drivers/Makefile b/arch/sh/drivers/Makefile
index 6cb92676c5f..e13f06bebd9 100644
--- a/arch/sh/drivers/Makefile
+++ b/arch/sh/drivers/Makefile
@@ -2,8 +2,9 @@
 # Makefile for the Linux SuperH-specific device drivers.
 #
 
+obj-y		+= dma/
+
 obj-$(CONFIG_PCI)		+= pci/
-obj-$(CONFIG_SH_DMA)		+= dma/
 obj-$(CONFIG_SUPERHYWAY)	+= superhyway/
 obj-$(CONFIG_PUSH_SWITCH)	+= push-switch.o
 obj-$(CONFIG_HEARTBEAT)		+= heartbeat.o
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig
index defc13c37d4..99935f9daf4 100644
--- a/arch/sh/drivers/dma/Kconfig
+++ b/arch/sh/drivers/dma/Kconfig
@@ -1,12 +1,12 @@
 menu "DMA support"
 
-config SH_DMA
-	bool "DMA controller (DMAC) support"
-	help
-	  Selecting this option will provide same API as PC's Direct Memory
-	  Access Controller(8237A) for SuperH DMAC.
+config SH_DMA_API
+	bool
 
-	  If unsure, say N.
+config SH_DMA
+	bool "SuperH on-chip DMA controller (DMAC) support"
+	select SH_DMA_API
+	default n
 
 config NR_ONCHIP_DMA_CHANNELS
 	depends on SH_DMA
@@ -53,4 +53,12 @@ config DMA_PAGE_OPS_CHANNEL
 	  in case channel 3 is unavailable. On the SH4, channels 1,2, and 3
 	  are dual-address capable.
 
+config SH_DMABRG
+	bool "SH7760 DMABRG support"
+	depends on CPU_SUBTYPE_SH7760
+	help
+	  The DMABRG does data transfers from main memory to Audio/USB units
+	  of the SH7760.
+	  Say Y if you want to use Audio/USB DMA on your SH7760 board.
+
 endmenu
diff --git a/arch/sh/drivers/dma/Makefile b/arch/sh/drivers/dma/Makefile
index db1295d3226..1ac812d2448 100644
--- a/arch/sh/drivers/dma/Makefile
+++ b/arch/sh/drivers/dma/Makefile
@@ -2,8 +2,8 @@
 # Makefile for the SuperH DMA specific kernel interface routines under Linux.
 #
 
-obj-y				+= dma-api.o
+obj-$(CONFIG_SH_DMA_API)	+= dma-api.o dma-sysfs.o
 obj-$(CONFIG_ISA_DMA_API)	+= dma-isa.o
-obj-$(CONFIG_SYSFS)		+= dma-sysfs.o
 obj-$(CONFIG_SH_DMA)		+= dma-sh.o
 obj-$(CONFIG_SH_DREAMCAST)	+= dma-pvr2.o dma-g2.o
+obj-$(CONFIG_SH_DMABRG)		+= dmabrg.o
diff --git a/arch/sh/drivers/dma/dmabrg.c b/arch/sh/drivers/dma/dmabrg.c
new file mode 100644
index 00000000000..9d0a29370f2
--- /dev/null
+++ b/arch/sh/drivers/dma/dmabrg.c
@@ -0,0 +1,196 @@
+/*
+ * SH7760 DMABRG IRQ handling
+ *
+ * (c) 2007 MSC Vertriebsges.m.b.H, Manuel Lauss <mlau@msc-ge.com>
+ *  licensed under the GPLv2.
+ *
+ */
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <asm/dma.h>
+#include <asm/dmabrg.h>
+#include <asm/io.h>
+
+/*
+ * The DMABRG is a special DMA unit within the SH7760. It does transfers
+ * from USB-SRAM/Audio units to main memory (and also the LCDC; but that
+ * part is sensibly placed  in the LCDC  registers and requires no irqs)
+ * It has 3 IRQ lines which trigger 10 events, and works independently
+ * from the traditional SH DMAC (although it blocks usage of DMAC 0)
+ *
+ * BRGIRQID   | component | dir | meaning      | source
+ * -----------------------------------------------------
+ *     0      | USB-DMA   | ... | xfer done    | DMABRGI1
+ *     1      | USB-UAE   | ... | USB addr err.| DMABRGI0
+ *     2      | HAC0/SSI0 | play| all done     | DMABRGI1
+ *     3      | HAC0/SSI0 | play| half done    | DMABRGI2
+ *     4      | HAC0/SSI0 | rec | all done     | DMABRGI1
+ *     5      | HAC0/SSI0 | rec | half done    | DMABRGI2
+ *     6      | HAC1/SSI1 | play| all done     | DMABRGI1
+ *     7      | HAC1/SSI1 | play| half done    | DMABRGI2
+ *     8      | HAC1/SSI1 | rec | all done     | DMABRGI1
+ *     9      | HAC1/SSI1 | rec | half done    | DMABRGI2
+ *
+ * all can be enabled/disabled in the DMABRGCR register,
+ * as well as checked if they occured.
+ *
+ * DMABRGI0 services  USB  DMA  Address  errors,  but it still must be
+ * enabled/acked in the DMABRGCR register.  USB-DMA complete indicator
+ * is grouped together with the audio buffer end indicators, too bad...
+ *
+ * DMABRGCR:	Bits 31-24: audio-dma ENABLE flags,
+ *		Bits 23-16: audio-dma STATUS flags,
+ *		Bits  9-8:  USB error/xfer ENABLE,
+ *		Bits  1-0:  USB error/xfer STATUS.
+ *	Ack an IRQ by writing 0 to the STATUS flag.
+ *	Mask IRQ by writing 0 to ENABLE flag.
+ *
+ * Usage is almost like with any other IRQ:
+ *  dmabrg_request_irq(BRGIRQID, handler, data)
+ *  dmabrg_free_irq(BRGIRQID)
+ *
+ * handler prototype:  void brgirqhandler(void *data)
+ */
+
+#define DMARSRA		0xfe090000
+#define DMAOR		0xffa00040
+#define DMACHCR0	0xffa0000c
+#define DMABRGCR	0xfe3c0000
+
+#define DMAOR_BRG	0x0000c000
+#define DMAOR_DMEN	0x00000001
+
+#define DMABRGI0	68
+#define DMABRGI1	69
+#define DMABRGI2	70
+
+struct dmabrg_handler {
+	void (*handler)(void *);
+	void *data;
+} *dmabrg_handlers;
+
+static inline void dmabrg_call_handler(int i)
+{
+	dmabrg_handlers[i].handler(dmabrg_handlers[i].data);
+}
+
+/*
+ * main DMABRG irq handler. It acks irqs and then
+ * handles every set and unmasked bit sequentially.
+ * No locking and no validity checks; it should be
+ * as fast as possible (audio!)
+ */
+static irqreturn_t dmabrg_irq(int irq, void *data)
+{
+	unsigned long dcr;
+	unsigned int i;
+
+	dcr = ctrl_inl(DMABRGCR);
+	ctrl_outl(dcr & ~0x00ff0003, DMABRGCR);	/* ack all */
+	dcr &= dcr >> 8;	/* ignore masked */
+
+	/* USB stuff, get it out of the way first */
+	if (dcr & 1)
+		dmabrg_call_handler(DMABRGIRQ_USBDMA);
+	if (dcr & 2)
+		dmabrg_call_handler(DMABRGIRQ_USBDMAERR);
+
+	/* Audio */
+	dcr >>= 16;
+	while (dcr) {
+		i = __ffs(dcr);
+		dcr &= dcr - 1;
+		dmabrg_call_handler(i + DMABRGIRQ_A0TXF);
+	}
+	return IRQ_HANDLED;
+}
+
+static void dmabrg_disable_irq(unsigned int dmairq)
+{
+	unsigned long dcr;
+	dcr = ctrl_inl(DMABRGCR);
+	dcr &= ~(1 << ((dmairq > 1) ? dmairq + 22 : dmairq + 8));
+	ctrl_outl(dcr, DMABRGCR);
+}
+
+static void dmabrg_enable_irq(unsigned int dmairq)
+{
+	unsigned long dcr;
+	dcr = ctrl_inl(DMABRGCR);
+	dcr |= (1 << ((dmairq > 1) ? dmairq + 22 : dmairq + 8));
+	ctrl_outl(dcr, DMABRGCR);
+}
+
+int dmabrg_request_irq(unsigned int dmairq, void(*handler)(void*),
+		       void *data)
+{
+	if ((dmairq > 9) || !handler)
+		return -ENOENT;
+	if (dmabrg_handlers[dmairq].handler)
+		return -EBUSY;
+
+	dmabrg_handlers[dmairq].handler = handler;
+	dmabrg_handlers[dmairq].data = data;
+	
+	dmabrg_enable_irq(dmairq);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dmabrg_request_irq);
+
+void dmabrg_free_irq(unsigned int dmairq)
+{
+	if (likely(dmairq < 10)) {
+		dmabrg_disable_irq(dmairq);
+		dmabrg_handlers[dmairq].handler = NULL;
+		dmabrg_handlers[dmairq].data = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(dmabrg_free_irq);
+
+static int __init dmabrg_init(void)
+{
+	unsigned long or;
+	int ret;
+
+	dmabrg_handlers = kzalloc(10 * sizeof(struct dmabrg_handler),
+				  GFP_KERNEL);
+	if (!dmabrg_handlers)
+		return -ENOMEM;
+
+#ifdef CONFIG_SH_DMA
+	/* request DMAC channel 0 before anyone else can get it */
+	ret = request_dma(0, "DMAC 0 (DMABRG)");
+	if (ret < 0)
+		printk(KERN_INFO "DMABRG: DMAC ch0 not reserved!\n");
+#endif
+
+	ctrl_outl(0, DMABRGCR);
+	ctrl_outl(0, DMACHCR0);
+	ctrl_outl(0x94000000, DMARSRA);	/* enable DMABRG in DMAC 0 */
+
+	/* enable DMABRG mode, enable the DMAC */
+	or = ctrl_inl(DMAOR);
+	ctrl_outl(or | DMAOR_BRG | DMAOR_DMEN, DMAOR);
+
+	ret = request_irq(DMABRGI0, dmabrg_irq, IRQF_DISABLED,
+			"DMABRG USB address error", NULL);
+	if (ret)
+		goto out0;
+
+	ret = request_irq(DMABRGI1, dmabrg_irq, IRQF_DISABLED,
+			"DMABRG Transfer End", NULL);
+	if (ret)
+		goto out1;
+
+	ret = request_irq(DMABRGI2, dmabrg_irq, IRQF_DISABLED,
+			"DMABRG Transfer Half", NULL);
+	if (ret == 0)
+		return ret;
+
+	free_irq(DMABRGI1, 0);
+out1:	free_irq(DMABRGI0, 0);
+out0:	kfree(dmabrg_handlers);
+	return ret;
+}
+subsys_initcall(dmabrg_init);
diff --git a/arch/sh/kernel/cpu/sh2a/Makefile b/arch/sh/kernel/cpu/sh2a/Makefile
index 350972ae941..965fa2572b2 100644
--- a/arch/sh/kernel/cpu/sh2a/Makefile
+++ b/arch/sh/kernel/cpu/sh2a/Makefile
@@ -2,9 +2,8 @@
 # Makefile for the Linux/SuperH SH-2A backends.
 #
 
-obj-y	:= common.o probe.o
+obj-y	:= common.o probe.o opcode_helper.o
 
-common-y	+= $(addprefix ../sh2/, ex.o)
-common-y	+= $(addprefix ../sh2/, entry.o)
+common-y	+= $(addprefix ../sh2/, ex.o entry.o)
 
 obj-$(CONFIG_CPU_SUBTYPE_SH7206) += setup-sh7206.o clock-sh7206.o
diff --git a/arch/sh/kernel/cpu/sh2a/opcode_helper.c b/arch/sh/kernel/cpu/sh2a/opcode_helper.c
new file mode 100644
index 00000000000..9704b7926d8
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh2a/opcode_helper.c
@@ -0,0 +1,55 @@
+/*
+ * arch/sh/kernel/cpu/sh2a/opcode_helper.c
+ *
+ * Helper for the SH-2A 32-bit opcodes.
+ *
+ *  Copyright (C) 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kernel.h>
+#include <asm/system.h>
+
+/*
+ * Instructions on SH are generally fixed at 16-bits, however, SH-2A
+ * introduces some 32-bit instructions. Since there are no real
+ * constraints on their use (and they can be mixed and matched), we need
+ * to check the instruction encoding to work out if it's a true 32-bit
+ * instruction or not.
+ *
+ * Presently, 32-bit opcodes have only slight variations in what the
+ * actual encoding looks like in the first-half of the instruction, which
+ * makes it fairly straightforward to differentiate from the 16-bit ones.
+ *
+ * First 16-bits of encoding		Used by
+ *
+ *	0011nnnnmmmm0001	mov.b, mov.w, mov.l, fmov.d,
+ *				fmov.s, movu.b, movu.w
+ *
+ *	0011nnnn0iii1001        bclr.b, bld.b, bset.b, bst.b, band.b,
+ *				bandnot.b, bldnot.b, bor.b, bornot.b,
+ *				bxor.b
+ *
+ *	0000nnnniiii0000        movi20
+ *	0000nnnniiii0001        movi20s
+ */
+unsigned int instruction_size(unsigned int insn)
+{
+	/* Look for the common cases */
+	switch ((insn & 0xf00f)) {
+	case 0x0000:	/* movi20 */
+	case 0x0001:	/* movi20s */
+	case 0x3001:	/* 32-bit mov/fmov/movu variants */
+		return 4;
+	}
+
+	/* And the special cases.. */
+	switch ((insn & 0xf08f)) {
+	case 0x3009:	/* 32-bit b*.b bit operations */
+		return 4;
+	}
+
+	return 2;
+}
diff --git a/arch/sh/kernel/cpu/sh2a/probe.c b/arch/sh/kernel/cpu/sh2a/probe.c
index 426f6db01fc..f455c350978 100644
--- a/arch/sh/kernel/cpu/sh2a/probe.c
+++ b/arch/sh/kernel/cpu/sh2a/probe.c
@@ -18,6 +18,7 @@ int __init detect_cpu_and_cache_system(void)
 {
 	/* Just SH7206 for now .. */
 	current_cpu_data.type			= CPU_SH7206;
+	current_cpu_data.flags			|= CPU_HAS_OP32;
 
 	current_cpu_data.dcache.ways		= 4;
 	current_cpu_data.dcache.way_incr	= (1 << 11);
diff --git a/arch/sh/kernel/cpu/sh3/entry.S b/arch/sh/kernel/cpu/sh3/entry.S
index f3e827f29a4..832c0b4a1e6 100644
--- a/arch/sh/kernel/cpu/sh3/entry.S
+++ b/arch/sh/kernel/cpu/sh3/entry.S
@@ -1,5 +1,5 @@
 /*
- * arch/sh/kernel/entry.S
+ * arch/sh/kernel/cpu/sh3/entry.S
  *
  *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
  *  Copyright (C) 2003 - 2006  Paul Mundt
diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S
index ba3082d640b..2b2a9e02fb7 100644
--- a/arch/sh/kernel/cpu/sh3/ex.S
+++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -1,7 +1,7 @@
 /*
  *  arch/sh/kernel/cpu/sh3/ex.S
  *
- *  The SH-3 exception vector table.
+ *  The SH-3 and SH-4 exception vector table.
 
  *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
  *  Copyright (C) 2003 - 2006  Paul Mundt
@@ -9,7 +9,6 @@
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
- *
  */
 #include <linux/linkage.h>
 
@@ -36,8 +35,12 @@ ENTRY(exception_handling_table)
 	.long	exception_error	! address error load
 	.long	exception_error	! address error store	/* 100 */
 #endif
-	.long	exception_error	! fpu_exception	/* 120 */
-	.long	exception_error			/* 140 */
+#if defined(CONFIG_SH_FPU)
+	.long	do_fpu_error		/* 120 */
+#else
+	.long	exception_error		/* 120 */
+#endif
+	.long	exception_error		/* 140 */
 	.long	system_call	! Unconditional Trap	 /* 160 */
 	.long	exception_error	! reserved_instruction (filled by trap_init) /* 180 */
 	.long	exception_error	! illegal_slot_instruction (filled by trap_init) /*1A0*/
@@ -55,4 +58,4 @@ ENTRY(user_break_point_trap)
 	 * away offsets can be manually inserted in to their appropriate
 	 * location via set_exception_table_{evt,vec}().
 	 */
-	.balign 4096,0,4096
+	.balign	4096,0,4096
diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile
index 19ca68c7188..8add10bd826 100644
--- a/arch/sh/kernel/cpu/sh4/Makefile
+++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -2,10 +2,10 @@
 # Makefile for the Linux/SuperH SH-4 backends.
 #
 
-obj-y	:= ex.o probe.o common.o
-common-y	+= $(addprefix ../sh3/, entry.o)
+obj-y	:= probe.o common.o
+common-y	+= $(addprefix ../sh3/, entry.o ex.o)
 
-obj-$(CONFIG_SH_FPU)                    += fpu.o
+obj-$(CONFIG_SH_FPU)			+= fpu.o
 obj-$(CONFIG_SH_STORE_QUEUES)		+= sq.o
 
 # CPU subtype setup
diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S
deleted file mode 100644
index ac8ab57413c..00000000000
--- a/arch/sh/kernel/cpu/sh4/ex.S
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- *  arch/sh/kernel/cpu/sh4/ex.S
- *
- *  The SH-4 exception vector table.
-
- *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
- *  Copyright (C) 2003 - 2006  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#include <linux/linkage.h>
-
-	.align 2
-	.data
-
-ENTRY(exception_handling_table)
-	.long	exception_error		/* 000 */
-	.long	exception_error
-#if defined(CONFIG_MMU)
-	.long	tlb_miss_load		/* 040 */
-	.long	tlb_miss_store
-	.long	initial_page_write
-	.long	tlb_protection_violation_load
-	.long	tlb_protection_violation_store
-	.long	address_error_load
-	.long	address_error_store	/* 100 */
-#else
-	.long	exception_error	! tlb miss load		/* 040 */
-	.long	exception_error	! tlb miss store
-	.long	exception_error	! initial page write
-	.long	exception_error	! tlb prot violation load
-	.long	exception_error	! tlb prot violation store
-	.long	exception_error	! address error load
-	.long	exception_error	! address error store	/* 100 */
-#endif
-#if defined(CONFIG_SH_FPU)
-	.long	do_fpu_error		/* 120 */
-#else
-	.long	exception_error		/* 120 */
-#endif
-	.long	exception_error		/* 140 */
-	.long	system_call	! Unconditional Trap	 /* 160 */
-	.long	exception_error	! reserved_instruction (filled by trap_init) /* 180 */
-	.long	exception_error	! illegal_slot_instruction (filled by trap_init) /*1A0*/
-ENTRY(nmi_slot)
-#if defined (CONFIG_KGDB_NMI)
-	.long	debug_enter	/* 1C0 */	! Allow trap to debugger
-#else
-	.long	exception_none	/* 1C0 */	! Not implemented yet
-#endif
-ENTRY(user_break_point_trap)
-	.long	break_point_trap	/* 1E0 */
-
-	/*
-	 * Pad the remainder of the table out, exceptions residing in far
-	 * away offsets can be manually inserted in to their appropriate
-	 * location via set_exception_table_{evt,vec}().
-	 */
-	.balign	4096,0,4096
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index 7624677f662..d61dd599169 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/signal.h>
 #include <asm/processor.h>
+#include <asm/system.h>
 #include <asm/io.h>
 
 /* The PR (precision) bit in the FP Status Register must be clear when
@@ -265,7 +266,7 @@ ieee_fpe_handler (struct pt_regs *regs)
 		nextpc = regs->pr;
 		finsn = *(unsigned short *) (regs->pc + 2);
 	} else {
-		nextpc = regs->pc + 2;
+		nextpc = regs->pc + instruction_size(insn);
 		finsn = insn;
 	}
 
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh73180.c b/arch/sh/kernel/cpu/sh4a/clock-sh73180.c
index 2fa5cb2ae68..6d5ba373a75 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh73180.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh73180.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh/kernel/cpu/sh4/clock-sh73180.c
+ * arch/sh/kernel/cpu/sh4a/clock-sh73180.c
  *
  * SH73180 support for the clock framework
  *
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c b/arch/sh/kernel/cpu/sh4a/clock-sh7343.c
index 1707a213f0c..7adc4f16e95 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7343.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh/kernel/cpu/sh4/clock-sh7343.c
+ * arch/sh/kernel/cpu/sh4a/clock-sh7343.c
  *
  * SH7343/SH7722 support for the clock framework
  *
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7770.c b/arch/sh/kernel/cpu/sh4a/clock-sh7770.c
index c8694bac647..8e236062c72 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7770.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7770.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh/kernel/cpu/sh4/clock-sh7770.c
+ * arch/sh/kernel/cpu/sh4a/clock-sh7770.c
  *
  * SH7770 support for the clock framework
  *
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7780.c b/arch/sh/kernel/cpu/sh4a/clock-sh7780.c
index 9e6a216750c..01f3da619d3 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7780.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh/kernel/cpu/sh4/clock-sh7780.c
+ * arch/sh/kernel/cpu/sh4a/clock-sh7780.c
  *
  * SH7780 support for the clock framework
  *
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 329b3f3051d..6b4f5748d0b 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -15,9 +15,12 @@
 #include <linux/pm.h>
 #include <linux/kallsyms.h>
 #include <linux/kexec.h>
-#include <asm/kdebug.h>
+#include <linux/kdebug.h>
+#include <linux/tick.h>
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
+#include <asm/pgalloc.h>
+#include <asm/system.h>
 #include <asm/ubc.h>
 
 static int hlt_counter;
@@ -58,12 +61,15 @@ void cpu_idle(void)
 		if (!idle)
 			idle = default_idle;
 
+		tick_nohz_stop_sched_tick();
 		while (!need_resched())
 			idle();
+		tick_nohz_restart_sched_tick();
 
 		preempt_enable_no_resched();
 		schedule();
 		preempt_disable();
+		check_pgt_cache();
 	}
 }
 
@@ -495,9 +501,9 @@ asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
 	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
 
 	/* Rewind */
-	regs->pc -= 2;
+	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
 
-	if (notify_die(DIE_TRAP, regs, regs->tra & 0xff,
+	if (notify_die(DIE_TRAP, "debug trap", regs, 0, regs->tra & 0xff,
 		       SIGTRAP) == NOTIFY_STOP)
 		return;
 
@@ -514,9 +520,9 @@ asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
 	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
 
 	/* Rewind */
-	regs->pc -= 2;
+	regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
 
-	if (notify_die(DIE_TRAP, regs, TRAPA_BUG_OPCODE & 0xff,
+	if (notify_die(DIE_TRAP, "bug trap", regs, 0, TRAPA_BUG_OPCODE & 0xff,
 		       SIGTRAP) == NOTIFY_STOP)
 		return;
 
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 477d2a854fc..c2772913593 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -431,7 +431,7 @@ const char *get_cpu_subtype(struct sh_cpuinfo *c)
 /* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
 static const char *cpu_flags[] = {
 	"none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
-	"ptea", "llsc", "l2", NULL
+	"ptea", "llsc", "l2", "op32", NULL
 };
 
 static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c
index fa91641c1f6..c1cfcb9f047 100644
--- a/arch/sh/kernel/sh_ksyms.c
+++ b/arch/sh/kernel/sh_ksyms.c
@@ -58,8 +58,6 @@ EXPORT_SYMBOL(__udelay);
 EXPORT_SYMBOL(__ndelay);
 EXPORT_SYMBOL(__const_udelay);
 
-EXPORT_SYMBOL(__div64_32);
-
 #define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
 
 /* These symbols are generated by the compiler itself */
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c
index eb0191c374b..b32c35a7c0a 100644
--- a/arch/sh/kernel/signal.c
+++ b/arch/sh/kernel/signal.c
@@ -23,7 +23,7 @@
 #include <linux/personality.h>
 #include <linux/binfmts.h>
 #include <linux/freezer.h>
-
+#include <asm/system.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -500,7 +500,9 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
 				}
 			/* fallthrough */
 			case -ERESTARTNOINTR:
-				regs->pc -= 2;
+				regs->pc -= instruction_size(
+						ctrl_inw(regs->pc - 4));
+				break;
 		}
 	} else {
 		/* gUSA handling */
@@ -516,7 +518,8 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
 			regs->regs[15] = regs->regs[1];
 			if (regs->pc < regs->regs[0])
 				/* Go to rewind point #1 */
-				regs->pc = regs->regs[0] + offset - 2;
+				regs->pc = regs->regs[0] + offset -
+					instruction_size(ctrl_inw(regs->pc-4));
 		}
 #ifdef CONFIG_PREEMPT
 		local_irq_restore(flags);
@@ -600,9 +603,9 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0)
 		    regs->regs[0] == -ERESTARTSYS ||
 		    regs->regs[0] == -ERESTARTNOINTR) {
 			regs->regs[0] = save_r0;
-			regs->pc -= 2;
+			regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
 		} else if (regs->regs[0] == -ERESTART_RESTARTBLOCK) {
-			regs->pc -= 2;
+			regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
 			regs->regs[3] = __NR_restart_syscall;
 		}
 	}
diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c
index 4bdd2f83535..d41e561be20 100644
--- a/arch/sh/kernel/stacktrace.c
+++ b/arch/sh/kernel/stacktrace.c
@@ -17,7 +17,7 @@
 /*
  * Save stack-backtrace addresses into a stack_trace buffer.
  */
-void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
+void save_stack_trace(struct stack_trace *trace)
 {
 	unsigned long *sp = (unsigned long *)current_stack_pointer;
 
diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S
index 38fc8cd3ea3..4357d1a6358 100644
--- a/arch/sh/kernel/syscalls.S
+++ b/arch/sh/kernel/syscalls.S
@@ -354,3 +354,4 @@ ENTRY(sys_call_table)
 	.long sys_move_pages
 	.long sys_getcpu
 	.long sys_epoll_pwait
+	.long sys_utimensat		/* 320 */
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index d47e775962e..a3a67d151e5 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -3,7 +3,7 @@
  *
  *  Copyright (C) 1999  Tetsuya Okada & Niibe Yutaka
  *  Copyright (C) 2000  Philipp Rumpf <prumpf@tux.org>
- *  Copyright (C) 2002 - 2006  Paul Mundt
+ *  Copyright (C) 2002 - 2007  Paul Mundt
  *  Copyright (C) 2002  M. R. Brown  <mrbrown@linux-sh.org>
  *
  *  Some code taken from i386 version.
@@ -15,6 +15,7 @@
 #include <linux/profile.h>
 #include <linux/timex.h>
 #include <linux/sched.h>
+#include <linux/clockchips.h>
 #include <asm/clock.h>
 #include <asm/rtc.h>
 #include <asm/timer.h>
@@ -38,6 +39,14 @@ static int null_rtc_set_time(const time_t secs)
 	return 0;
 }
 
+/*
+ * Null high precision timer functions for systems lacking one.
+ */
+static cycle_t null_hpt_read(void)
+{
+	return 0;
+}
+
 void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
 int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
 
@@ -101,6 +110,7 @@ int do_settimeofday(struct timespec *tv)
 EXPORT_SYMBOL(do_settimeofday);
 #endif /* !CONFIG_GENERIC_TIME */
 
+#ifndef CONFIG_GENERIC_CLOCKEVENTS
 /* last time the RTC clock got updated */
 static long last_rtc_update;
 
@@ -138,6 +148,7 @@ void handle_timer_tick(void)
 			last_rtc_update = xtime.tv_sec - 600;
 	}
 }
+#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
 
 #ifdef CONFIG_PM
 int timer_suspend(struct sys_device *dev, pm_message_t state)
@@ -168,136 +179,58 @@ static struct sysdev_class timer_sysclass = {
 	.resume	 = timer_resume,
 };
 
-#ifdef CONFIG_NO_IDLE_HZ
-static int timer_dyn_tick_enable(void)
+static int __init timer_init_sysfs(void)
 {
-	struct dyn_tick_timer *dyn_tick = sys_timer->dyn_tick;
-	unsigned long flags;
-	int ret = -ENODEV;
-
-	if (dyn_tick) {
-		spin_lock_irqsave(&dyn_tick->lock, flags);
-		ret = 0;
-		if (!(dyn_tick->state & DYN_TICK_ENABLED)) {
-			ret = dyn_tick->enable();
-
-			if (ret == 0)
-				dyn_tick->state |= DYN_TICK_ENABLED;
-		}
-		spin_unlock_irqrestore(&dyn_tick->lock, flags);
-	}
+	int ret = sysdev_class_register(&timer_sysclass);
+	if (ret != 0)
+		return ret;
 
-	return ret;
+	sys_timer->dev.cls = &timer_sysclass;
+	return sysdev_register(&sys_timer->dev);
 }
+device_initcall(timer_init_sysfs);
 
-static int timer_dyn_tick_disable(void)
-{
-	struct dyn_tick_timer *dyn_tick = sys_timer->dyn_tick;
-	unsigned long flags;
-	int ret = -ENODEV;
-
-	if (dyn_tick) {
-		spin_lock_irqsave(&dyn_tick->lock, flags);
-		ret = 0;
-		if (dyn_tick->state & DYN_TICK_ENABLED) {
-			ret = dyn_tick->disable();
-
-			if (ret == 0)
-				dyn_tick->state &= ~DYN_TICK_ENABLED;
-		}
-		spin_unlock_irqrestore(&dyn_tick->lock, flags);
-	}
-
-	return ret;
-}
+void (*board_time_init)(void);
 
 /*
- * Reprogram the system timer for at least the calculated time interval.
- * This function should be called from the idle thread with IRQs disabled,
- * immediately before sleeping.
+ * Shamelessly based on the MIPS and Sparc64 work.
  */
-void timer_dyn_reprogram(void)
-{
-	struct dyn_tick_timer *dyn_tick = sys_timer->dyn_tick;
-	unsigned long next, seq, flags;
-
-	if (!dyn_tick)
-		return;
-
-	spin_lock_irqsave(&dyn_tick->lock, flags);
-	if (dyn_tick->state & DYN_TICK_ENABLED) {
-		next = next_timer_interrupt();
-		do {
-			seq = read_seqbegin(&xtime_lock);
-			dyn_tick->reprogram(next - jiffies);
-		} while (read_seqretry(&xtime_lock, seq));
-	}
-	spin_unlock_irqrestore(&dyn_tick->lock, flags);
-}
+static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
+unsigned long sh_hpt_frequency = 0;
+
+#define NSEC_PER_CYC_SHIFT	10
+
+struct clocksource clocksource_sh = {
+	.name		= "SuperH",
+	.rating		= 200,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.read		= null_hpt_read,
+	.shift		= 16,
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+};
 
-static ssize_t timer_show_dyn_tick(struct sys_device *dev, char *buf)
+static void __init init_sh_clocksource(void)
 {
-	return sprintf(buf, "%i\n",
-		       (sys_timer->dyn_tick->state & DYN_TICK_ENABLED) >> 1);
-}
+	if (!sh_hpt_frequency || clocksource_sh.read == null_hpt_read)
+		return;
 
-static ssize_t timer_set_dyn_tick(struct sys_device *dev, const char *buf,
-				  size_t count)
-{
-	unsigned int enable = simple_strtoul(buf, NULL, 2);
+	clocksource_sh.mult = clocksource_hz2mult(sh_hpt_frequency,
+						  clocksource_sh.shift);
 
-	if (enable)
-		timer_dyn_tick_enable();
-	else
-		timer_dyn_tick_disable();
+	timer_ticks_per_nsec_quotient =
+		clocksource_hz2mult(sh_hpt_frequency, NSEC_PER_CYC_SHIFT);
 
-	return count;
+	clocksource_register(&clocksource_sh);
 }
-static SYSDEV_ATTR(dyn_tick, 0644, timer_show_dyn_tick, timer_set_dyn_tick);
 
-/*
- * dyntick=enable|disable
- */
-static char dyntick_str[4] __initdata = "";
-
-static int __init dyntick_setup(char *str)
+#ifdef CONFIG_GENERIC_TIME
+unsigned long long sched_clock(void)
 {
-	if (str)
-		strlcpy(dyntick_str, str, sizeof(dyntick_str));
-	return 1;
+	unsigned long long ticks = clocksource_sh.read();
+	return (ticks * timer_ticks_per_nsec_quotient) >> NSEC_PER_CYC_SHIFT;
 }
-
-__setup("dyntick=", dyntick_setup);
-#endif
-
-static int __init timer_init_sysfs(void)
-{
-	int ret = sysdev_class_register(&timer_sysclass);
-	if (ret != 0)
-		return ret;
-
-	sys_timer->dev.cls = &timer_sysclass;
-	ret = sysdev_register(&sys_timer->dev);
-
-#ifdef CONFIG_NO_IDLE_HZ
-	if (ret == 0 && sys_timer->dyn_tick) {
-		ret = sysdev_create_file(&sys_timer->dev, &attr_dyn_tick);
-
-		/*
-		 * Turn on dynamic tick after calibrate delay
-		 * for correct bogomips
-		 */
-		if (ret == 0 && dyntick_str[0] == 'e')
-			ret = timer_dyn_tick_enable();
-	}
 #endif
 
-	return ret;
-}
-device_initcall(timer_init_sysfs);
-
-void (*board_time_init)(void);
-
 void __init time_init(void)
 {
 	if (board_time_init)
@@ -316,10 +249,15 @@ void __init time_init(void)
 	sys_timer = get_sys_timer();
 	printk(KERN_INFO "Using %s for system timer\n", sys_timer->name);
 
-#ifdef CONFIG_NO_IDLE_HZ
-	if (sys_timer->dyn_tick)
-		spin_lock_init(&sys_timer->dyn_tick->lock);
-#endif
+	if (sys_timer->ops->read)
+		clocksource_sh.read = sys_timer->ops->read;
+
+	init_sh_clocksource();
+
+	if (sh_hpt_frequency)
+		printk("Using %lu.%03lu MHz high precision timer.\n",
+		       ((sh_hpt_frequency + 500) / 1000) / 1000,
+		       ((sh_hpt_frequency + 500) / 1000) % 1000);
 
 #if defined(CONFIG_SH_KGDB)
 	/*
diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index d9e3151c891..2d997e2a5b6 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -1,7 +1,7 @@
 /*
  * arch/sh/kernel/timers/timer-tmu.c - TMU Timer Support
  *
- *  Copyright (C) 2005  Paul Mundt
+ *  Copyright (C) 2005 - 2007  Paul Mundt
  *
  * TMU handling code hacked out of arch/sh/kernel/time.c
  *
@@ -18,6 +18,7 @@
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
 #include <linux/seqlock.h>
+#include <linux/clockchips.h>
 #include <asm/timer.h>
 #include <asm/rtc.h>
 #include <asm/io.h>
@@ -25,56 +26,75 @@
 #include <asm/clock.h>
 
 #define TMU_TOCR_INIT	0x00
-#define TMU0_TCR_INIT	0x0020
-#define TMU_TSTR_INIT	1
+#define TMU_TCR_INIT	0x0020
 
-#define TMU0_TCR_CALIB	0x0000
+static int tmu_timer_start(void)
+{
+	ctrl_outb(ctrl_inb(TMU_TSTR) | 0x3, TMU_TSTR);
+	return 0;
+}
 
-static unsigned long tmu_timer_get_offset(void)
+static void tmu0_timer_set_interval(unsigned long interval, unsigned int reload)
 {
-	int count;
-	static int count_p = 0x7fffffff;    /* for the first call after boot */
-	static unsigned long jiffies_p = 0;
+	ctrl_outl(interval, TMU0_TCNT);
 
 	/*
-	 * cache volatile jiffies temporarily; we have IRQs turned off.
+	 * TCNT reloads from TCOR on underflow, clear it if we don't
+	 * intend to auto-reload
 	 */
-	unsigned long jiffies_t;
+	if (reload)
+		ctrl_outl(interval, TMU0_TCOR);
+	else
+		ctrl_outl(0, TMU0_TCOR);
 
-	/* timer count may underflow right here */
-	count = ctrl_inl(TMU0_TCNT);	/* read the latched count */
+	tmu_timer_start();
+}
 
-	jiffies_t = jiffies;
+static int tmu_timer_stop(void)
+{
+	ctrl_outb(ctrl_inb(TMU_TSTR) & ~0x3, TMU_TSTR);
+	return 0;
+}
 
-	/*
-	 * avoiding timer inconsistencies (they are rare, but they happen)...
-	 * there is one kind of problem that must be avoided here:
-	 *  1. the timer counter underflows
-	 */
+static cycle_t tmu_timer_read(void)
+{
+	return ~ctrl_inl(TMU1_TCNT);
+}
+
+static int tmu_set_next_event(unsigned long cycles,
+			      struct clock_event_device *evt)
+{
+	tmu0_timer_set_interval(cycles, 1);
+	return 0;
+}
 
-	if (jiffies_t == jiffies_p) {
-		if (count > count_p) {
-			/* the nutcase */
-			if (ctrl_inw(TMU0_TCR) & 0x100) { /* Check UNF bit */
-				count -= LATCH;
-			} else {
-				printk("%s (): hardware timer problem?\n",
-				       __FUNCTION__);
-			}
-		}
-	} else
-		jiffies_p = jiffies_t;
-
-	count_p = count;
-
-	count = ((LATCH-1) - count) * TICK_SIZE;
-	count = (count + LATCH/2) / LATCH;
-
-	return count;
+static void tmu_set_mode(enum clock_event_mode mode,
+			 struct clock_event_device *evt)
+{
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+		ctrl_outl(ctrl_inl(TMU0_TCNT), TMU0_TCOR);
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+		ctrl_outl(0, TMU0_TCOR);
+		break;
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+		break;
+	}
 }
 
+static struct clock_event_device tmu0_clockevent = {
+	.name		= "tmu0",
+	.shift		= 32,
+	.features	= CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+	.set_mode	= tmu_set_mode,
+	.set_next_event	= tmu_set_next_event,
+};
+
 static irqreturn_t tmu_timer_interrupt(int irq, void *dummy)
 {
+	struct clock_event_device *evt = &tmu0_clockevent;
 	unsigned long timer_status;
 
 	/* Clear UNF bit */
@@ -82,72 +102,76 @@ static irqreturn_t tmu_timer_interrupt(int irq, void *dummy)
 	timer_status &= ~0x100;
 	ctrl_outw(timer_status, TMU0_TCR);
 
-	/*
-	 * Here we are in the timer irq handler. We just have irqs locally
-	 * disabled but we don't know if the timer_bh is running on the other
-	 * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
-	 * the irq version of write_lock because as just said we have irq
-	 * locally disabled. -arca
-	 */
-	write_seqlock(&xtime_lock);
-	handle_timer_tick();
-	write_sequnlock(&xtime_lock);
+	evt->event_handler(evt);
 
 	return IRQ_HANDLED;
 }
 
-static struct irqaction tmu_irq = {
-	.name		= "timer",
+static struct irqaction tmu0_irq = {
+	.name		= "periodic timer",
 	.handler	= tmu_timer_interrupt,
 	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
 	.mask		= CPU_MASK_NONE,
 };
 
-static void tmu_clk_init(struct clk *clk)
+static void tmu0_clk_init(struct clk *clk)
 {
-	u8 divisor = TMU0_TCR_INIT & 0x7;
-	ctrl_outw(TMU0_TCR_INIT, TMU0_TCR);
+	u8 divisor = TMU_TCR_INIT & 0x7;
+	ctrl_outw(TMU_TCR_INIT, TMU0_TCR);
 	clk->rate = clk->parent->rate / (4 << (divisor << 1));
 }
 
-static void tmu_clk_recalc(struct clk *clk)
+static void tmu0_clk_recalc(struct clk *clk)
 {
 	u8 divisor = ctrl_inw(TMU0_TCR) & 0x7;
 	clk->rate = clk->parent->rate / (4 << (divisor << 1));
 }
 
-static struct clk_ops tmu_clk_ops = {
-	.init		= tmu_clk_init,
-	.recalc		= tmu_clk_recalc,
+static struct clk_ops tmu0_clk_ops = {
+	.init		= tmu0_clk_init,
+	.recalc		= tmu0_clk_recalc,
 };
 
 static struct clk tmu0_clk = {
 	.name		= "tmu0_clk",
-	.ops		= &tmu_clk_ops,
+	.ops		= &tmu0_clk_ops,
 };
 
-static int tmu_timer_start(void)
+static void tmu1_clk_init(struct clk *clk)
 {
-	ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
-	return 0;
+	u8 divisor = TMU_TCR_INIT & 0x7;
+	ctrl_outw(divisor, TMU1_TCR);
+	clk->rate = clk->parent->rate / (4 << (divisor << 1));
 }
 
-static int tmu_timer_stop(void)
+static void tmu1_clk_recalc(struct clk *clk)
 {
-	ctrl_outb(0, TMU_TSTR);
-	return 0;
+	u8 divisor = ctrl_inw(TMU1_TCR) & 0x7;
+	clk->rate = clk->parent->rate / (4 << (divisor << 1));
 }
 
+static struct clk_ops tmu1_clk_ops = {
+	.init		= tmu1_clk_init,
+	.recalc		= tmu1_clk_recalc,
+};
+
+static struct clk tmu1_clk = {
+	.name		= "tmu1_clk",
+	.ops		= &tmu1_clk_ops,
+};
+
 static int tmu_timer_init(void)
 {
 	unsigned long interval;
+	unsigned long frequency;
 
-	setup_irq(CONFIG_SH_TIMER_IRQ, &tmu_irq);
+	setup_irq(CONFIG_SH_TIMER_IRQ, &tmu0_irq);
 
 	tmu0_clk.parent = clk_get(NULL, "module_clk");
+	tmu1_clk.parent = clk_get(NULL, "module_clk");
 
-	/* Start TMU0 */
 	tmu_timer_stop();
+
 #if !defined(CONFIG_CPU_SUBTYPE_SH7300) && \
     !defined(CONFIG_CPU_SUBTYPE_SH7760) && \
     !defined(CONFIG_CPU_SUBTYPE_SH7785)
@@ -155,15 +179,29 @@ static int tmu_timer_init(void)
 #endif
 
 	clk_register(&tmu0_clk);
+	clk_register(&tmu1_clk);
 	clk_enable(&tmu0_clk);
+	clk_enable(&tmu1_clk);
 
-	interval = (clk_get_rate(&tmu0_clk) + HZ / 2) / HZ;
-	printk(KERN_INFO "Interval = %ld\n", interval);
+	frequency = clk_get_rate(&tmu0_clk);
+	interval = (frequency + HZ / 2) / HZ;
 
-	ctrl_outl(interval, TMU0_TCOR);
-	ctrl_outl(interval, TMU0_TCNT);
+	sh_hpt_frequency = clk_get_rate(&tmu1_clk);
+	ctrl_outl(~0, TMU1_TCNT);
+	ctrl_outl(~0, TMU1_TCOR);
 
-	tmu_timer_start();
+	tmu0_timer_set_interval(interval, 1);
+
+	tmu0_clockevent.mult = div_sc(frequency, NSEC_PER_SEC,
+				      tmu0_clockevent.shift);
+	tmu0_clockevent.max_delta_ns =
+			clockevent_delta2ns(-1, &tmu0_clockevent);
+	tmu0_clockevent.min_delta_ns =
+			clockevent_delta2ns(1, &tmu0_clockevent);
+
+	tmu0_clockevent.cpumask = cpumask_of_cpu(0);
+
+	clockevents_register_device(&tmu0_clockevent);
 
 	return 0;
 }
@@ -172,9 +210,7 @@ struct sys_timer_ops tmu_timer_ops = {
 	.init		= tmu_timer_init,
 	.start		= tmu_timer_start,
 	.stop		= tmu_timer_stop,
-#ifndef CONFIG_GENERIC_TIME
-	.get_offset	= tmu_timer_get_offset,
-#endif
+	.read		= tmu_timer_read,
 };
 
 struct sys_timer tmu_timer = {
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 7b40f0ff3df..3a197649cd8 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -20,10 +20,10 @@
 #include <linux/io.h>
 #include <linux/bug.h>
 #include <linux/debug_locks.h>
+#include <linux/kdebug.h>
 #include <linux/limits.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
-#include <asm/kdebug.h>
 
 #ifdef CONFIG_SH_KGDB
 #include <asm/kgdb.h>
@@ -76,20 +76,6 @@ static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
 	}
 }
 
-ATOMIC_NOTIFIER_HEAD(shdie_chain);
-
-int register_die_notifier(struct notifier_block *nb)
-{
-	return atomic_notifier_chain_register(&shdie_chain, nb);
-}
-EXPORT_SYMBOL(register_die_notifier);
-
-int unregister_die_notifier(struct notifier_block *nb)
-{
-	return atomic_notifier_chain_unregister(&shdie_chain, nb);
-}
-EXPORT_SYMBOL(unregister_die_notifier);
-
 static DEFINE_SPINLOCK(die_lock);
 
 void die(const char * str, struct pt_regs * regs, long err)
@@ -505,7 +491,7 @@ static int handle_unaligned_access(u16 instruction, struct pt_regs *regs)
  simple:
 	ret = handle_unaligned_ins(instruction,regs);
 	if (ret==0)
-		regs->pc += 2;
+		regs->pc += instruction_size(instruction);
 	return ret;
 }
 #endif /* CONFIG_CPU_SH2A */
@@ -682,7 +668,7 @@ asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5,
 
 	err = do_fpu_inst(inst, regs);
 	if (!err) {
-		regs->pc += 2;
+		regs->pc += instruction_size(inst);
 		return;
 	}
 	/* not a FPU inst. */
diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c
index 7b0f66f0331..e146bafcd14 100644
--- a/arch/sh/kernel/vsyscall/vsyscall.c
+++ b/arch/sh/kernel/vsyscall/vsyscall.c
@@ -1,5 +1,5 @@
 /*
- * arch/sh/kernel/vsyscall.c
+ * arch/sh/kernel/vsyscall/vsyscall.c
  *
  *  Copyright (C) 2006 Paul Mundt
  *
diff --git a/arch/sh/lib/delay.c b/arch/sh/lib/delay.c
index 351714694d6..f3ddd2133e6 100644
--- a/arch/sh/lib/delay.c
+++ b/arch/sh/lib/delay.c
@@ -24,9 +24,10 @@ inline void __const_udelay(unsigned long xloops)
 	__asm__("dmulu.l	%0, %2\n\t"
 		"sts	mach, %0"
 		: "=r" (xloops)
-		: "0" (xloops), "r" (cpu_data[raw_smp_processor_id()].loops_per_jiffy)
+		: "0" (xloops),
+		  "r" (HZ * cpu_data[raw_smp_processor_id()].loops_per_jiffy)
 		: "macl", "mach");
-	__delay(xloops * HZ);
+	__delay(xloops);
 }
 
 void __udelay(unsigned long usecs)
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 12f3d394dc2..253346d7b31 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -218,6 +218,9 @@ endmenu
 
 menu "Memory management options"
 
+config QUICKLIST
+	def_bool y
+
 config MMU
         bool "Support for memory management hardware"
 	depends on !CPU_SH2
@@ -300,6 +303,10 @@ config NODES_SHIFT
 config ARCH_FLATMEM_ENABLE
 	def_bool y
 
+config MAX_ACTIVE_REGIONS
+	int
+	default "1"
+
 config ARCH_POPULATES_NODE_MAP
 	def_bool y
 
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 0ecc117cade..9207da67ff8 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -15,7 +15,7 @@
 #include <linux/mm.h>
 #include <linux/hardirq.h>
 #include <linux/kprobes.h>
-#include <asm/kdebug.h>
+#include <linux/kdebug.h>
 #include <asm/system.h>
 #include <asm/mmu_context.h>
 #include <asm/tlbflush.h>
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4d030988b36..8fe223a890e 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -67,6 +67,8 @@ void show_mem(void)
 	printk("%d slab pages\n", slab);
 	printk("%d pages shared\n", shared);
 	printk("%d pages swap cached\n", cached);
+	printk(KERN_INFO "Total of %ld pages in page table cache\n",
+	       quicklist_total_size());
 }
 
 #ifdef CONFIG_MMU
diff --git a/arch/sparc/kernel/asm-offsets.c b/arch/sparc/kernel/asm-offsets.c
index 29d7cfd1c97..6773ed76e41 100644
--- a/arch/sparc/kernel/asm-offsets.c
+++ b/arch/sparc/kernel/asm-offsets.c
@@ -28,7 +28,7 @@ int foo(void)
 	DEFINE(AOFF_task_gid, offsetof(struct task_struct, gid));
 	DEFINE(AOFF_task_euid, offsetof(struct task_struct, euid));
 	DEFINE(AOFF_task_egid, offsetof(struct task_struct, egid));
-	/* DEFINE(THREAD_INFO, offsetof(struct task_struct, thread_info)); */
+	/* DEFINE(THREAD_INFO, offsetof(struct task_struct, stack)); */
 	DEFINE(ASIZ_task_uid,	sizeof(current->uid));
 	DEFINE(ASIZ_task_gid,	sizeof(current->gid));
 	DEFINE(ASIZ_task_euid,	sizeof(current->euid));
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index dc652f21029..d0fde36395b 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/kdebug.h>
 
+#include <asm/smp.h>
 #include <asm/delay.h>
 #include <asm/system.h>
 #include <asm/ptrace.h>
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 354cc6b7053..b9c0f307a8f 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -320,21 +320,7 @@ source "crypto/Kconfig"
 
 source "lib/Kconfig"
 
-menu "SCSI support"
-depends on BROKEN
-
-config SCSI
-	tristate "SCSI support"
-
-# This gives us free_dma, which scsi.c wants.
-config GENERIC_ISA_DMA
-	bool
-	depends on SCSI
-	default y
-
-source "arch/um/Kconfig.scsi"
-
-endmenu
+source "drivers/scsi/Kconfig"
 
 source "drivers/md/Kconfig"
 
diff --git a/arch/um/Kconfig.scsi b/arch/um/Kconfig.scsi
deleted file mode 100644
index c291c942b1a..00000000000
--- a/arch/um/Kconfig.scsi
+++ /dev/null
@@ -1,58 +0,0 @@
-comment "SCSI support type (disk, tape, CD-ROM)"
-	depends on SCSI
-
-config BLK_DEV_SD
-	tristate "SCSI disk support"
-	depends on SCSI
-
-config SD_EXTRA_DEVS
-	int "Maximum number of SCSI disks that can be loaded as modules"
-	depends on BLK_DEV_SD
-	default "40"
-
-config CHR_DEV_ST
-	tristate "SCSI tape support"
-	depends on SCSI
-
-config BLK_DEV_SR
-	tristate "SCSI CD-ROM support"
-	depends on SCSI
-
-config BLK_DEV_SR_VENDOR
-	bool "Enable vendor-specific extensions (for SCSI CDROM)"
-	depends on BLK_DEV_SR
-
-config SR_EXTRA_DEVS
-	int "Maximum number of CDROM devices that can be loaded as modules"
-	depends on BLK_DEV_SR
-	default "2"
-
-config CHR_DEV_SG
-	tristate "SCSI generic support"
-	depends on SCSI
-
-comment "Some SCSI devices (e.g. CD jukebox) support multiple LUNs"
-	depends on SCSI
-
-#if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-config SCSI_DEBUG_QUEUES
-	bool "Enable extra checks in new queueing code"
-	depends on SCSI
-
-#fi
-config SCSI_MULTI_LUN
-	bool "Probe all LUNs on each SCSI device"
-	depends on SCSI
-
-config SCSI_CONSTANTS
-	bool "Verbose SCSI error reporting (kernel size +=12K)"
-	depends on SCSI
-
-config SCSI_LOGGING
-	bool "SCSI logging facility"
-	depends on SCSI
-
-config SCSI_DEBUG
-	tristate "SCSI debugging host simulator (EXPERIMENTAL)"
-	depends on SCSI
-
diff --git a/arch/um/include/sysdep-i386/archsetjmp.h b/arch/um/include/sysdep-i386/archsetjmp.h
index 11bafab669e..0f312085ce1 100644
--- a/arch/um/include/sysdep-i386/archsetjmp.h
+++ b/arch/um/include/sysdep-i386/archsetjmp.h
@@ -1,5 +1,5 @@
 /*
- * arch/i386/include/klibc/archsetjmp.h
+ * arch/um/include/sysdep-i386/archsetjmp.h
  */
 
 #ifndef _KLIBC_ARCHSETJMP_H
diff --git a/arch/um/include/sysdep-x86_64/archsetjmp.h b/arch/um/include/sysdep-x86_64/archsetjmp.h
index 9a5e1a6ec80..2af8f12ca16 100644
--- a/arch/um/include/sysdep-x86_64/archsetjmp.h
+++ b/arch/um/include/sysdep-x86_64/archsetjmp.h
@@ -1,5 +1,5 @@
 /*
- * arch/x86_64/include/klibc/archsetjmp.h
+ * arch/um/include/sysdep-x86_64/archsetjmp.h
  */
 
 #ifndef _KLIBC_ARCHSETJMP_H
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index ef36facd8fe..a96ae1a0610 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -178,20 +178,23 @@ int start_uml_skas(void)
 
 int external_pid_skas(struct task_struct *task)
 {
-#warning Need to look up userspace_pid by cpu
+	/* FIXME: Need to look up userspace_pid by cpu */
 	return(userspace_pid[0]);
 }
 
 int thread_pid_skas(struct task_struct *task)
 {
-#warning Need to look up userspace_pid by cpu
+	/* FIXME: Need to look up userspace_pid by cpu */
 	return(userspace_pid[0]);
 }
 
 void kill_off_processes_skas(void)
 {
 	if(proc_mm)
-#warning need to loop over userspace_pids in kill_off_processes_skas
+		/*
+		 * FIXME: need to loop over userspace_pids in
+		 * kill_off_processes_skas
+		 */
 		os_kill_ptraced_process(userspace_pid[0], 1);
 	else {
 		struct task_struct *p;
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index 92a7b59120d..2d9d2ca3929 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -239,6 +239,7 @@ out:
 	return ok;
 }
 
+#ifdef UML_CONFIG_MODE_TT
 void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int))
 {
 	int flags = 0, pages;
@@ -260,6 +261,7 @@ void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int))
 			      "errno = %d\n", errno);
 	}
 }
+#endif
 
 void init_new_thread_signals(void)
 {
diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c
index 8e490fff3d4..5c894632079 100644
--- a/arch/um/os-Linux/skas/mem.c
+++ b/arch/um/os-Linux/skas/mem.c
@@ -68,7 +68,7 @@ static inline long do_syscall_stub(struct mm_id * mm_idp, void **addr)
 	int err, pid = mm_idp->u.pid;
 
 	if(proc_mm)
-#warning Need to look up userspace_pid by cpu
+		/* FIXME: Need to look up userspace_pid by cpu */
 		pid = userspace_pid[0];
 
 	multi_count++;
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 5c088a55396..6a0e466d01e 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -586,7 +586,7 @@ void switch_mm_skas(struct mm_id *mm_idp)
 {
 	int err;
 
-#warning need cpu pid in switch_mm_skas
+	/* FIXME: need cpu pid in switch_mm_skas */
 	if(proc_mm){
 		err = ptrace(PTRACE_SWITCH_MM, userspace_pid[0], 0,
 			     mm_idp->u.mm_fd);
diff --git a/arch/v850/kernel/asm-offsets.c b/arch/v850/kernel/asm-offsets.c
index 24f29136907..cee5c3142d4 100644
--- a/arch/v850/kernel/asm-offsets.c
+++ b/arch/v850/kernel/asm-offsets.c
@@ -29,7 +29,7 @@ int main (void)
 	DEFINE (TASK_PTRACE, offsetof (struct task_struct, ptrace));
 	DEFINE (TASK_BLOCKED, offsetof (struct task_struct, blocked));
 	DEFINE (TASK_THREAD, offsetof (struct task_struct, thread));
-	DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, thread_info));
+	DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, stack));
 	DEFINE (TASK_MM, offsetof (struct task_struct, mm));
 	DEFINE (TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
 	DEFINE (TASK_PID, offsetof (struct task_struct, pid));
diff --git a/arch/v850/kernel/entry.S b/arch/v850/kernel/entry.S
index 8bc521ca081..e4327a8d6bc 100644
--- a/arch/v850/kernel/entry.S
+++ b/arch/v850/kernel/entry.S
@@ -523,7 +523,7 @@ END(ret_from_trap)
 
 
 /* This the initial entry point for a new child thread, with an appropriate
-   stack in place that makes it look the the child is in the middle of an
+   stack in place that makes it look that the child is in the middle of an
    syscall.  This function is actually `returned to' from switch_thread
    (copy_thread makes ret_from_fork the return address in each new thread's
    saved context).  */
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 4d582589fa8..d8bfe315471 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1413,7 +1413,7 @@ static void ack_apic_level(unsigned int irq)
 
 	/*
 	 * We must acknowledge the irq before we move it or the acknowledge will
-	 * not propogate properly.
+	 * not propagate properly.
 	 */
 	ack_APIC_irq();
 
diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index 3bc30d2c13d..3eaceac3248 100644
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -32,7 +32,7 @@ atomic_t irq_err_count;
  */
 static inline void stack_overflow_check(struct pt_regs *regs)
 {
-	u64 curbase = (u64) current->thread_info;
+	u64 curbase = (u64)task_stack_page(current);
 	static unsigned long warned = -60*HZ;
 
 	if (regs->rsp >= curbase && regs->rsp <= curbase + THREAD_SIZE &&
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c
index 442169640e4..a14375dd542 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -720,9 +720,11 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
 
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		mce_create_device(cpu);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		mce_remove_device(cpu);
 		break;
 	}
diff --git a/arch/x86_64/kernel/mce_amd.c b/arch/x86_64/kernel/mce_amd.c
index d0bd5d66e10..03356e64f9c 100644
--- a/arch/x86_64/kernel/mce_amd.c
+++ b/arch/x86_64/kernel/mce_amd.c
@@ -654,9 +654,11 @@ static int threshold_cpu_callback(struct notifier_block *nfb,
 
 	switch (action) {
 	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
 		threshold_create_device(cpu);
 		break;
 	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
 		threshold_remove_device(cpu);
 		break;
 	default:
diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c
index dc32cef9619..51d4c6fa88c 100644
--- a/arch/x86_64/kernel/vsyscall.c
+++ b/arch/x86_64/kernel/vsyscall.c
@@ -327,7 +327,7 @@ static int __cpuinit
 cpu_vsyscall_notifier(struct notifier_block *n, unsigned long action, void *arg)
 {
 	long cpu = (long)arg;
-	if (action == CPU_ONLINE)
+	if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN)
 		smp_call_function_single(cpu, cpu_vsyscall_init, NULL, 0, 1);
 	return NOTIFY_DONE;
 }
diff --git a/arch/xtensa/kernel/asm-offsets.c b/arch/xtensa/kernel/asm-offsets.c
index b256cfbef34..698079b3a33 100644
--- a/arch/xtensa/kernel/asm-offsets.c
+++ b/arch/xtensa/kernel/asm-offsets.c
@@ -70,7 +70,7 @@ int main(void)
 	DEFINE(TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
 	DEFINE(TASK_PID, offsetof (struct task_struct, pid));
 	DEFINE(TASK_THREAD, offsetof (struct task_struct, thread));
-	DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, thread_info));
+	DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
 	DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
 	BLANK();
 
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index ca76f071666..f5319d78c87 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -1,5 +1,5 @@
 /*
- * arch/xtensa/pci-dma.c
+ * arch/xtensa/kernel/pci-dma.c
  *
  * DMA coherent memory allocation.
  *