Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Conflicts:
	drivers/mtd/mtd_blkdevs.c

Merge Grant's device-tree bits so that we can apply the subsequent fixes.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

13 files changed, 263 insertions, 223 deletions

diff --git a/arch/blackfin/include/asm/Kbuild b/arch/blackfin/include/asm/Kbuild
index d9eb29e2555..9e7c5379d3f 100644
--- a/arch/blackfin/include/asm/Kbuild
+++ b/arch/blackfin/include/asm/Kbuild
@@ -1,4 +1,5 @@
 include include/asm-generic/Kbuild.asm
 
 header-y += bfin_sport.h
+header-y += cachectl.h
 header-y += fixed_code.h
diff --git a/arch/blackfin/include/asm/bfin5xx_spi.h b/arch/blackfin/include/asm/bfin5xx_spi.h
index ed4f8c6db0c..0b5136e334b 100644
--- a/arch/blackfin/include/asm/bfin5xx_spi.h
+++ b/arch/blackfin/include/asm/bfin5xx_spi.h
@@ -11,26 +11,17 @@
 
 #define MIN_SPI_BAUD_VAL	2
 
-#define SPI_READ              0
-#define SPI_WRITE             1
-
-#define SPI_CTRL_OFF            0x0
-#define SPI_FLAG_OFF            0x4
-#define SPI_STAT_OFF            0x8
-#define SPI_TXBUFF_OFF          0xc
-#define SPI_RXBUFF_OFF          0x10
-#define SPI_BAUD_OFF            0x14
-#define SPI_SHAW_OFF            0x18
-
-
 #define BIT_CTL_ENABLE      0x4000
 #define BIT_CTL_OPENDRAIN   0x2000
 #define BIT_CTL_MASTER      0x1000
-#define BIT_CTL_POLAR       0x0800
-#define BIT_CTL_PHASE       0x0400
-#define BIT_CTL_BITORDER    0x0200
+#define BIT_CTL_CPOL        0x0800
+#define BIT_CTL_CPHA        0x0400
+#define BIT_CTL_LSBF        0x0200
 #define BIT_CTL_WORDSIZE    0x0100
-#define BIT_CTL_MISOENABLE  0x0020
+#define BIT_CTL_EMISO       0x0020
+#define BIT_CTL_PSSE        0x0010
+#define BIT_CTL_GM          0x0008
+#define BIT_CTL_SZ          0x0004
 #define BIT_CTL_RXMOD       0x0000
 #define BIT_CTL_TXMOD       0x0001
 #define BIT_CTL_TIMOD_DMA_TX 0x0003
@@ -50,61 +41,26 @@
 #define BIT_STU_SENDOVER    0x0001
 #define BIT_STU_RECVFULL    0x0020
 
-#define CFG_SPI_ENABLE      1
-#define CFG_SPI_DISABLE     0
-
-#define CFG_SPI_OUTENABLE   1
-#define CFG_SPI_OUTDISABLE  0
-
-#define CFG_SPI_ACTLOW      1
-#define CFG_SPI_ACTHIGH     0
-
-#define CFG_SPI_PHASESTART  1
-#define CFG_SPI_PHASEMID    0
-
-#define CFG_SPI_MASTER      1
-#define CFG_SPI_SLAVE       0
-
-#define CFG_SPI_SENELAST    0
-#define CFG_SPI_SENDZERO    1
-
-#define CFG_SPI_RCVFLUSH    1
-#define CFG_SPI_RCVDISCARD  0
-
-#define CFG_SPI_LSBFIRST    1
-#define CFG_SPI_MSBFIRST    0
-
-#define CFG_SPI_WORDSIZE16  1
-#define CFG_SPI_WORDSIZE8   0
-
-#define CFG_SPI_MISOENABLE   1
-#define CFG_SPI_MISODISABLE  0
-
-#define CFG_SPI_READ      0x00
-#define CFG_SPI_WRITE     0x01
-#define CFG_SPI_DMAREAD   0x02
-#define CFG_SPI_DMAWRITE  0x03
-
-#define CFG_SPI_CSCLEARALL  0
-#define CFG_SPI_CHIPSEL1    1
-#define CFG_SPI_CHIPSEL2    2
-#define CFG_SPI_CHIPSEL3    3
-#define CFG_SPI_CHIPSEL4    4
-#define CFG_SPI_CHIPSEL5    5
-#define CFG_SPI_CHIPSEL6    6
-#define CFG_SPI_CHIPSEL7    7
+/*
+ * All Blackfin system MMRs are padded to 32bits even if the register
+ * itself is only 16bits.  So use a helper macro to streamline this.
+ */
+#define __BFP(m) u16 m; u16 __pad_##m
 
-#define CFG_SPI_CS1VALUE    1
-#define CFG_SPI_CS2VALUE    2
-#define CFG_SPI_CS3VALUE    3
-#define CFG_SPI_CS4VALUE    4
-#define CFG_SPI_CS5VALUE    5
-#define CFG_SPI_CS6VALUE    6
-#define CFG_SPI_CS7VALUE    7
+/*
+ * bfin spi registers layout
+ */
+struct bfin_spi_regs {
+	__BFP(ctl);
+	__BFP(flg);
+	__BFP(stat);
+	__BFP(tdbr);
+	__BFP(rdbr);
+	__BFP(baud);
+	__BFP(shadow);
+};
 
-#define CMD_SPI_SET_BAUDRATE  2
-#define CMD_SPI_GET_SYSTEMCLOCK   25
-#define CMD_SPI_SET_WRITECONTINUOUS     26
+#define MAX_CTRL_CS          8  /* cs in spi controller */
 
 /* device.platform_data for SSP controller devices */
 struct bfin5xx_spi_master {
@@ -120,9 +76,7 @@ struct bfin5xx_spi_chip {
 	u16 ctl_reg;
 	u8 enable_dma;
 	u8 bits_per_word;
-	u8 cs_change_per_word;
 	u16 cs_chg_udelay; /* Some devices require 16-bit delays */
-	u32 cs_gpio;
 	/* Value to send if no TX value is supplied, usually 0x0 or 0xFFFF */
 	u16 idle_tx_val;
 	u8 pio_interrupt; /* Enable spi data irq */
diff --git a/arch/blackfin/include/asm/bfin_can.h b/arch/blackfin/include/asm/bfin_can.h
index eec0076a385..b1492e0bcab 100644
--- a/arch/blackfin/include/asm/bfin_can.h
+++ b/arch/blackfin/include/asm/bfin_can.h
@@ -34,6 +34,7 @@ struct bfin_can_mask_regs {
 };
 
 struct bfin_can_channel_regs {
+	/* data[0,2,4,6] -> data{0,1,2,3} while data[1,3,5,7] is padding */
 	u16 data[8];
 	__BFP(dlc);
 	__BFP(tsv);
@@ -83,16 +84,18 @@ struct bfin_can_regs {
 	__BFP(gif);           /* offset 0x9c */
 	__BFP(control);       /* offset 0xa0 */
 	__BFP(intr);          /* offset 0xa4 */
-	u32 __pad3[1];
+	__BFP(version);       /* offset 0xa8 */
 	__BFP(mbtd);          /* offset 0xac */
 	__BFP(ewr);           /* offset 0xb0 */
 	__BFP(esr);           /* offset 0xb4 */
-	u32 __pad4[2];
+	u32 __pad3[2];
 	__BFP(ucreg);         /* offset 0xc0 */
 	__BFP(uccnt);         /* offset 0xc4 */
 	__BFP(ucrc);          /* offset 0xc8 */
 	__BFP(uccnf);         /* offset 0xcc */
-	u32 __pad5[12];
+	u32 __pad4[1];
+	__BFP(version2);      /* offset 0xd4 */
+	u32 __pad5[10];
 
 	/*
 	 * channel(mailbox) mask and message registers
diff --git a/arch/blackfin/include/asm/bfin_ppi.h b/arch/blackfin/include/asm/bfin_ppi.h
new file mode 100644
index 00000000000..003900886f9
--- /dev/null
+++ b/arch/blackfin/include/asm/bfin_ppi.h
@@ -0,0 +1,51 @@
+/*
+ * bfin_ppi.h - interface to Blackfin PPIs
+ *
+ * Copyright 2005-2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_PPI_H__
+#define __ASM_BFIN_PPI_H__
+
+#include <linux/types.h>
+
+/*
+ * All Blackfin system MMRs are padded to 32bits even if the register
+ * itself is only 16bits.  So use a helper macro to streamline this.
+ */
+#define __BFP(m) u16 m; u16 __pad_##m
+
+/*
+ * bfin ppi registers layout
+ */
+struct bfin_ppi_regs {
+	__BFP(control);
+	__BFP(status);
+	__BFP(count);
+	__BFP(delay);
+	__BFP(frame);
+};
+
+/*
+ * bfin eppi registers layout
+ */
+struct bfin_eppi_regs {
+	__BFP(status);
+	__BFP(hcount);
+	__BFP(hdelay);
+	__BFP(vcount);
+	__BFP(vdelay);
+	__BFP(frame);
+	__BFP(line);
+	__BFP(clkdiv);
+	u32 control;
+	u32 fs1w_hbl;
+	u32 fs1p_avpl;
+	u32 fs2w_lvb;
+	u32 fs2p_lavf;
+	u32 clip;
+};
+
+#endif
diff --git a/arch/blackfin/include/asm/cachectl.h b/arch/blackfin/include/asm/cachectl.h
new file mode 100644
index 00000000000..03255df6c1e
--- /dev/null
+++ b/arch/blackfin/include/asm/cachectl.h
@@ -0,0 +1,20 @@
+/*
+ * based on the mips/cachectl.h
+ *
+ * Copyright 2010 Analog Devices Inc.
+ * Copyright (C) 1994, 1995, 1996 by Ralf Baechle
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef	_ASM_CACHECTL
+#define	_ASM_CACHECTL
+
+/*
+ * Options for cacheflush system call
+ */
+#define	ICACHE	(1<<0)		/* flush instruction cache        */
+#define	DCACHE	(1<<1)		/* writeback and flush data cache */
+#define	BCACHE	(ICACHE|DCACHE)	/* flush both caches              */
+
+#endif	/* _ASM_CACHECTL */
diff --git a/arch/blackfin/include/asm/cdef_LPBlackfin.h b/arch/blackfin/include/asm/cdef_LPBlackfin.h
index 6c39d94b44d..a1f6817687e 100644
--- a/arch/blackfin/include/asm/cdef_LPBlackfin.h
+++ b/arch/blackfin/include/asm/cdef_LPBlackfin.h
@@ -172,16 +172,19 @@
 #define bfin_write_ICPLB_DATA14(val)         bfin_write32(ICPLB_DATA14,val)
 #define bfin_read_ICPLB_DATA15()             bfin_read32(ICPLB_DATA15)
 #define bfin_write_ICPLB_DATA15(val)         bfin_write32(ICPLB_DATA15,val)
-#define bfin_read_ITEST_COMMAND()            bfin_read32(ITEST_COMMAND)
 #define bfin_write_ITEST_COMMAND(val)        bfin_write32(ITEST_COMMAND,val)
 #if 0
 #define ITEST_INDEX            0xFFE01304   /* Instruction Test Index Register */
 #endif
-#define bfin_read_ITEST_DATA0()              bfin_read32(ITEST_DATA0)
 #define bfin_write_ITEST_DATA0(val)          bfin_write32(ITEST_DATA0,val)
-#define bfin_read_ITEST_DATA1()              bfin_read32(ITEST_DATA1)
 #define bfin_write_ITEST_DATA1(val)          bfin_write32(ITEST_DATA1,val)
 
+#if ANOMALY_05000481
+#define bfin_read_ITEST_COMMAND()            bfin_read32(ITEST_COMMAND)
+#define bfin_read_ITEST_DATA0()              bfin_read32(ITEST_DATA0)
+#define bfin_read_ITEST_DATA1()              bfin_read32(ITEST_DATA1)
+#endif
+
 /* Event/Interrupt Registers*/
 
 #define bfin_read_EVT0()                     bfin_read32(EVT0)
diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h
index d3b40449ca0..40f94a704c0 100644
--- a/arch/blackfin/include/asm/ipipe.h
+++ b/arch/blackfin/include/asm/ipipe.h
@@ -49,7 +49,7 @@
 #define prepare_arch_switch(next)		\
 do {						\
 	ipipe_schedule_notify(current, next);	\
-	local_irq_disable_hw();			\
+	hard_local_irq_disable();			\
 } while (0)
 
 #define task_hijacked(p)						\
@@ -57,7 +57,7 @@ do {						\
 		int __x__ = __ipipe_root_domain_p;			\
 		__clear_bit(IPIPE_SYNC_FLAG, &ipipe_root_cpudom_var(status)); \
 		if (__x__)						\
-			local_irq_enable_hw();				\
+			hard_local_irq_enable();				\
 		!__x__;							\
 	})
 
@@ -167,7 +167,7 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul)
 #define __ipipe_run_isr(ipd, irq)					\
 	do {								\
 		if (!__ipipe_pipeline_head_p(ipd))			\
-			local_irq_enable_hw();				\
+			hard_local_irq_enable();				\
 		if (ipd == ipipe_root_domain) {				\
 			if (unlikely(ipipe_virtual_irq_p(irq))) {	\
 				irq_enter();				\
@@ -183,7 +183,7 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul)
 			__ipipe_run_irqtail();				\
 			__set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
 		}							\
-		local_irq_disable_hw();					\
+		hard_local_irq_disable();					\
 	} while (0)
 
 #define __ipipe_syscall_watched_p(p, sc)	\
diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h
index 813a1af3e86..41c4d70544e 100644
--- a/arch/blackfin/include/asm/irqflags.h
+++ b/arch/blackfin/include/asm/irqflags.h
@@ -8,6 +8,8 @@
 #ifndef __ASM_BFIN_IRQFLAGS_H__
 #define __ASM_BFIN_IRQFLAGS_H__
 
+#include <mach/blackfin.h>
+
 #ifdef CONFIG_SMP
 # include <asm/pda.h>
 # include <asm/processor.h>
@@ -31,54 +33,108 @@ static inline unsigned long bfin_cli(void)
 	return flags;
 }
 
-#ifdef CONFIG_IPIPE
-
-#include <linux/compiler.h>
-#include <linux/ipipe_base.h>
-#include <linux/ipipe_trace.h>
-
 #ifdef CONFIG_DEBUG_HWERR
 # define bfin_no_irqs 0x3f
 #else
 # define bfin_no_irqs 0x1f
 #endif
 
-#define raw_local_irq_disable()				\
-	do {						\
-		ipipe_check_context(ipipe_root_domain);	\
-		__ipipe_stall_root();			\
-		barrier();				\
-	} while (0)
+/*****************************************************************************/
+/*
+ * Hard, untraced CPU interrupt flag manipulation and access.
+ */
+static inline void __hard_local_irq_disable(void)
+{
+	bfin_cli();
+}
+
+static inline void __hard_local_irq_enable(void)
+{
+	bfin_sti(bfin_irq_flags);
+}
+
+static inline unsigned long hard_local_save_flags(void)
+{
+	return bfin_read_IMASK();
+}
 
-#define raw_local_irq_enable()				\
-	do {						\
-		barrier();				\
-		ipipe_check_context(ipipe_root_domain);	\
-		__ipipe_unstall_root();			\
-	} while (0)
+static inline unsigned long __hard_local_irq_save(void)
+{
+	unsigned long flags;
+	flags = bfin_cli();
+#ifdef CONFIG_DEBUG_HWERR
+	bfin_sti(0x3f);
+#endif
+	return flags;
+}
+
+static inline int hard_irqs_disabled_flags(unsigned long flags)
+{
+	return (flags & ~0x3f) == 0;
+}
+
+static inline int hard_irqs_disabled(void)
+{
+	unsigned long flags = hard_local_save_flags();
+	return hard_irqs_disabled_flags(flags);
+}
+
+static inline void __hard_local_irq_restore(unsigned long flags)
+{
+	if (!hard_irqs_disabled_flags(flags))
+		__hard_local_irq_enable();
+}
+
+/*****************************************************************************/
+/*
+ * Interrupt pipe handling.
+ */
+#ifdef CONFIG_IPIPE
+
+#include <linux/compiler.h>
+#include <linux/ipipe_base.h>
+#include <linux/ipipe_trace.h>
+
+/*
+ * Interrupt pipe interface to linux/irqflags.h.
+ */
+static inline void arch_local_irq_disable(void)
+{
+	ipipe_check_context(ipipe_root_domain);
+	__ipipe_stall_root();
+	barrier();
+}
 
-#define raw_local_save_flags_ptr(x)					\
-	do {								\
-		*(x) = __ipipe_test_root() ? bfin_no_irqs : bfin_irq_flags; \
-	} while (0)
+static inline void arch_local_irq_enable(void)
+{
+	barrier();
+	ipipe_check_context(ipipe_root_domain);
+	__ipipe_unstall_root();
+}
 
-#define raw_local_save_flags(x)		raw_local_save_flags_ptr(&(x))
+static inline unsigned long arch_local_save_flags(void)
+{
+	return __ipipe_test_root() ? bfin_no_irqs : bfin_irq_flags;
+}
 
-#define raw_irqs_disabled_flags(x)	((x) == bfin_no_irqs)
+static inline int arch_irqs_disabled_flags(unsigned long flags)
+{
+	return flags == bfin_no_irqs;
+}
 
-#define raw_local_irq_save_ptr(x)					\
-	do {								\
-		*(x) = __ipipe_test_and_stall_root() ? bfin_no_irqs : bfin_irq_flags; \
-		barrier();						\
-	} while (0)
+static inline void arch_local_irq_save_ptr(unsigned long *_flags)
+{
+	x = __ipipe_test_and_stall_root() ? bfin_no_irqs : bfin_irq_flags;
+	barrier();
+}
 
-#define raw_local_irq_save(x)				\
-	do {						\
-		ipipe_check_context(ipipe_root_domain);	\
-		raw_local_irq_save_ptr(&(x));		\
-	} while (0)
+static inline unsigned long arch_local_irq_save(void)
+{
+	ipipe_check_context(ipipe_root_domain);
+	return __hard_local_irq_save();
+}
 
-static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real)
+static inline unsigned long arch_mangle_irq_bits(int virt, unsigned long real)
 {
 	/*
 	 * Merge virtual and real interrupt mask bits into a single
@@ -87,130 +143,79 @@ static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real)
 	return (real & ~(1 << 31)) | ((virt != 0) << 31);
 }
 
-static inline int raw_demangle_irq_bits(unsigned long *x)
+static inline int arch_demangle_irq_bits(unsigned long *x)
 {
 	int virt = (*x & (1 << 31)) != 0;
 	*x &= ~(1L << 31);
 	return virt;
 }
 
-static inline void local_irq_disable_hw_notrace(void)
+/*
+ * Interface to various arch routines that may be traced.
+ */
+#ifdef CONFIG_IPIPE_TRACE_IRQSOFF
+static inline void hard_local_irq_disable(void)
 {
-	bfin_cli();
+	if (!hard_irqs_disabled()) {
+		__hard_local_irq_disable();
+		ipipe_trace_begin(0x80000000);
+	}
 }
 
-static inline void local_irq_enable_hw_notrace(void)
+static inline void hard_local_irq_enable(void)
 {
-	bfin_sti(bfin_irq_flags);
+	if (hard_irqs_disabled()) {
+		ipipe_trace_end(0x80000000);
+		__hard_local_irq_enable();
+	}
 }
 
-#define local_save_flags_hw(flags)			\
-	do {						\
-		(flags) = bfin_read_IMASK();		\
-	} while (0)
-
-#define irqs_disabled_flags_hw(flags) (((flags) & ~0x3f) == 0)
-
-#define irqs_disabled_hw()			\
-	({					\
-	unsigned long flags;			\
-	local_save_flags_hw(flags);		\
-	irqs_disabled_flags_hw(flags);		\
-	})
-
-static inline void local_irq_save_ptr_hw(unsigned long *flags)
+static inline unsigned long hard_local_irq_save(void)
 {
-	*flags = bfin_cli();
-#ifdef CONFIG_DEBUG_HWERR
-	bfin_sti(0x3f);
-#endif
+	unsigned long flags = hard_local_save_flags();
+	if (!hard_irqs_disabled_flags(flags)) {
+		__hard_local_irq_disable();
+		ipipe_trace_begin(0x80000001);
+	}
+	return flags;
 }
 
-#define local_irq_save_hw_notrace(flags)		\
-	do {						\
-		local_irq_save_ptr_hw(&(flags));	\
-	} while (0)
-
-static inline void local_irq_restore_hw_notrace(unsigned long flags)
+static inline void hard_local_irq_restore(unsigned long flags)
 {
-	if (!irqs_disabled_flags_hw(flags))
-		local_irq_enable_hw_notrace();
+	if (!hard_irqs_disabled_flags(flags)) {
+		ipipe_trace_end(0x80000001);
+		__hard_local_irq_enable();
+	}
 }
 
-#ifdef CONFIG_IPIPE_TRACE_IRQSOFF
-# define local_irq_disable_hw()				\
-	do {						\
-		if (!irqs_disabled_hw()) {		\
-			local_irq_disable_hw_notrace();	\
-			ipipe_trace_begin(0x80000000);	\
-		}					\
-	} while (0)
-# define local_irq_enable_hw()				\
-	do {						\
-		if (irqs_disabled_hw()) {		\
-			ipipe_trace_end(0x80000000);	\
-			local_irq_enable_hw_notrace();	\
-		}					\
-	} while (0)
-# define local_irq_save_hw(flags)			\
-	do {						\
-		local_save_flags_hw(flags);		\
-		if (!irqs_disabled_flags_hw(flags)) {	\
-			local_irq_disable_hw_notrace();	\
-			ipipe_trace_begin(0x80000001);	\
-		}					\
-	} while (0)
-# define local_irq_restore_hw(flags)			\
-	do {						\
-		if (!irqs_disabled_flags_hw(flags)) {	\
-			ipipe_trace_end(0x80000001);	\
-			local_irq_enable_hw_notrace();	\
-		}					\
-	} while (0)
 #else /* !CONFIG_IPIPE_TRACE_IRQSOFF */
-# define local_irq_disable_hw()		local_irq_disable_hw_notrace()
-# define local_irq_enable_hw()		local_irq_enable_hw_notrace()
-# define local_irq_save_hw(flags)	local_irq_save_hw_notrace(flags)
-# define local_irq_restore_hw(flags)	local_irq_restore_hw_notrace(flags)
+# define hard_local_irq_disable()	__hard_local_irq_disable()
+# define hard_local_irq_enable()	__hard_local_irq_enable()
+# define hard_local_irq_save()		__hard_local_irq_save()
+# define hard_local_irq_restore(flags)	__hard_local_irq_restore(flags)
 #endif /* !CONFIG_IPIPE_TRACE_IRQSOFF */
 
 #else /* CONFIG_IPIPE */
 
-static inline void raw_local_irq_disable(void)
-{
-	bfin_cli();
-}
-static inline void raw_local_irq_enable(void)
-{
-	bfin_sti(bfin_irq_flags);
-}
-
-#define raw_local_save_flags(flags) do { (flags) = bfin_read_IMASK(); } while (0)
-
-#define raw_irqs_disabled_flags(flags) (((flags) & ~0x3f) == 0)
+/*
+ * Direct interface to linux/irqflags.h.
+ */
+#define arch_local_save_flags()		hard_local_save_flags()
+#define arch_local_irq_save(flags)	__hard_local_irq_save()
+#define arch_local_irq_restore(flags)	__hard_local_irq_restore(flags)
+#define arch_local_irq_enable()		__hard_local_irq_enable()
+#define arch_local_irq_disable()	__hard_local_irq_disable()
+#define arch_irqs_disabled_flags(flags)	hard_irqs_disabled_flags(flags)
+#define arch_irqs_disabled()		hard_irqs_disabled()
 
-static inline unsigned long __raw_local_irq_save(void)
-{
-	unsigned long flags = bfin_cli();
-#ifdef CONFIG_DEBUG_HWERR
-	bfin_sti(0x3f);
-#endif
-	return flags;
-}
-#define raw_local_irq_save(flags) do { (flags) = __raw_local_irq_save(); } while (0)
+/*
+ * Interface to various arch routines that may be traced.
+ */
+#define hard_local_irq_save()		__hard_local_irq_save()
+#define hard_local_irq_restore(flags)	__hard_local_irq_restore(flags)
+#define hard_local_irq_enable()		__hard_local_irq_enable()
+#define hard_local_irq_disable()	__hard_local_irq_disable()
 
-#define local_irq_save_hw(flags)	raw_local_irq_save(flags)
-#define local_irq_restore_hw(flags)	raw_local_irq_restore(flags)
-#define local_irq_enable_hw()		raw_local_irq_enable()
-#define local_irq_disable_hw()		raw_local_irq_disable()
-#define irqs_disabled_hw()		irqs_disabled()
 
 #endif /* !CONFIG_IPIPE */
-
-static inline void raw_local_irq_restore(unsigned long flags)
-{
-	if (!raw_irqs_disabled_flags(flags))
-		raw_local_irq_enable();
-}
-
 #endif
diff --git a/arch/blackfin/include/asm/mmu_context.h b/arch/blackfin/include/asm/mmu_context.h
index e1a9b4624f9..3828c70e7a2 100644
--- a/arch/blackfin/include/asm/mmu_context.h
+++ b/arch/blackfin/include/asm/mmu_context.h
@@ -97,8 +97,8 @@ static inline void __switch_mm(struct mm_struct *prev_mm, struct mm_struct *next
 }
 
 #ifdef CONFIG_IPIPE
-#define lock_mm_switch(flags)	local_irq_save_hw_cond(flags)
-#define unlock_mm_switch(flags)	local_irq_restore_hw_cond(flags)
+#define lock_mm_switch(flags)	flags = hard_local_irq_save_cond()
+#define unlock_mm_switch(flags)	hard_local_irq_restore_cond(flags)
 #else
 #define lock_mm_switch(flags)	do { (void)(flags); } while (0)
 #define unlock_mm_switch(flags)	do { (void)(flags); } while (0)
@@ -205,9 +205,9 @@ static inline void destroy_context(struct mm_struct *mm)
 }
 
 #define ipipe_mm_switch_protect(flags)		\
-	local_irq_save_hw_cond(flags)
+	flags = hard_local_irq_save_cond()
 
 #define ipipe_mm_switch_unprotect(flags)	\
-	local_irq_restore_hw_cond(flags)
+	hard_local_irq_restore_cond(flags)
 
 #endif
diff --git a/arch/blackfin/include/asm/ptrace.h b/arch/blackfin/include/asm/ptrace.h
index aaa1c6c2bc1..832d7c009a2 100644
--- a/arch/blackfin/include/asm/ptrace.h
+++ b/arch/blackfin/include/asm/ptrace.h
@@ -113,6 +113,9 @@ extern void user_disable_single_step(struct task_struct *child);
 /* common code demands this function */
 #define ptrace_disable(child) user_disable_single_step(child)
 
+extern int is_user_addr_valid(struct task_struct *child,
+			      unsigned long start, unsigned long len);
+
 /*
  * Get the address of the live pt_regs for the specified task.
  * These are saved onto the top kernel stack when the process
diff --git a/arch/blackfin/include/asm/serial.h b/arch/blackfin/include/asm/serial.h
index 94a4a12e3bf..a0cb0caff15 100644
--- a/arch/blackfin/include/asm/serial.h
+++ b/arch/blackfin/include/asm/serial.h
@@ -1,2 +1 @@
 #include <asm-generic/serial.h>
-#define SERIAL_EXTRA_IRQ_FLAGS IRQF_TRIGGER_HIGH
diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index dde19b1d25f..19e2c7c3e63 100644
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.h
@@ -117,7 +117,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
 	unsigned long tmp = 0;
 	unsigned long flags;
 
-	local_irq_save_hw(flags);
+	flags = hard_local_irq_save();
 
 	switch (size) {
 	case 1:
@@ -139,7 +139,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
 			 : "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
 		break;
 	}
-	local_irq_restore_hw(flags);
+	hard_local_irq_restore(flags);
 	return tmp;
 }
 
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index 14fcd254b18..928ae975b87 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -392,8 +392,9 @@
 #define __NR_fanotify_init	371
 #define __NR_fanotify_mark	372
 #define __NR_prlimit64		373
+#define __NR_cacheflush		374
 
-#define __NR_syscall		374
+#define __NR_syscall		375
 #define NR_syscalls		__NR_syscall
 
 /* Old optional stuff no one actually uses */