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

Conflicts:
	drivers/mtd/mtdcore.c

Merged in order that I can apply the Nomadik nand/onenand support patches.

47 files changed, 3600 insertions, 276 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index a755eb5e236..75b1c7efae7 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -31,6 +31,11 @@ config MACH_OMAP_GENERIC
 	bool "Generic OMAP board"
 	depends on ARCH_OMAP2 && ARCH_OMAP24XX
 
+config MACH_OMAP2_TUSB6010
+	bool
+	depends on ARCH_OMAP2 && ARCH_OMAP2420
+	default y if MACH_NOKIA_N8X0
+
 config MACH_OMAP_H4
 	bool "OMAP 2420 H4 board"
 	depends on ARCH_OMAP2 && ARCH_OMAP24XX
@@ -68,6 +73,10 @@ config MACH_OMAP_3430SDP
 	bool "OMAP 3430 SDP board"
 	depends on ARCH_OMAP3 && ARCH_OMAP34XX
 
+config MACH_NOKIA_N8X0
+	bool "Nokia N800/N810"
+	depends on ARCH_OMAP2420
+
 config MACH_NOKIA_RX51
 	bool "Nokia RX-51 board"
 	depends on ARCH_OMAP3 && ARCH_OMAP34XX
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 735bae5b0de..8cb16777661 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -5,7 +5,7 @@
 # Common support
 obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o
 
-omap-2-3-common				= irq.o sdrc.o
+omap-2-3-common				= irq.o sdrc.o omap_hwmod.o
 prcm-common				= prcm.o powerdomain.o
 clock-common				= clock.o clockdomain.o
 
@@ -35,6 +35,11 @@ obj-$(CONFIG_ARCH_OMAP3)		+= pm34xx.o sleep34xx.o
 obj-$(CONFIG_PM_DEBUG)			+= pm-debug.o
 endif
 
+# PRCM
+obj-$(CONFIG_ARCH_OMAP2)		+= cm.o
+obj-$(CONFIG_ARCH_OMAP3)		+= cm.o
+obj-$(CONFIG_ARCH_OMAP4)		+= cm4xxx.o
+
 # Clock framework
 obj-$(CONFIG_ARCH_OMAP2)		+= clock24xx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= clock34xx.o
@@ -62,7 +67,7 @@ obj-$(CONFIG_MACH_OMAP3_PANDORA)	+= board-omap3pandora.o \
 					   mmc-twl4030.o
 obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o \
 					   mmc-twl4030.o
-
+obj-$(CONFIG_MACH_NOKIA_N8X0)		+= board-n8x0.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51.o \
 					   board-rx51-peripherals.o \
 					   mmc-twl4030.o
@@ -74,6 +79,7 @@ obj-$(CONFIG_MACH_OMAP_4430SDP)		+= board-4430sdp.o
 
 # Platform specific device init code
 obj-y					+= usb-musb.o
+obj-$(CONFIG_MACH_OMAP2_TUSB6010)	+= usb-tusb6010.o
 
 onenand-$(CONFIG_MTD_ONENAND_OMAP2)	:= gpmc-onenand.o
 obj-y					+= $(onenand-m) $(onenand-y)
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 8ec2a132904..42217b32f83 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -139,23 +139,19 @@ static inline void board_smc91x_init(void)
 
 #endif
 
+static struct omap_board_config_kernel sdp2430_config[] = {
+	{OMAP_TAG_LCD, &sdp2430_lcd_config},
+};
+
 static void __init omap_2430sdp_init_irq(void)
 {
+	omap_board_config = sdp2430_config;
+	omap_board_config_size = ARRAY_SIZE(sdp2430_config);
 	omap2_init_common_hw(NULL, NULL);
 	omap_init_irq();
 	omap_gpio_init();
 }
 
-static struct omap_uart_config sdp2430_uart_config __initdata = {
-	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
-static struct omap_board_config_kernel sdp2430_config[] = {
-	{OMAP_TAG_UART, &sdp2430_uart_config},
-	{OMAP_TAG_LCD, &sdp2430_lcd_config},
-};
-
-
 static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
 	.gpio_base	= OMAP_MAX_GPIO_LINES,
 	.irq_base	= TWL4030_GPIO_IRQ_BASE,
@@ -205,8 +201,6 @@ static void __init omap_2430sdp_init(void)
 	omap2430_i2c_init();
 
 	platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
-	omap_board_config = sdp2430_config;
-	omap_board_config_size = ARRAY_SIZE(sdp2430_config);
 	omap_serial_init();
 	twl4030_mmc_init(mmc);
 	usb_musb_init();
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index ac262cd7450..bd57ec76dc5 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -167,26 +167,23 @@ static struct platform_device *sdp3430_devices[] __initdata = {
 	&sdp3430_lcd_device,
 };
 
-static void __init omap_3430sdp_init_irq(void)
-{
-	omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL);
-	omap_init_irq();
-	omap_gpio_init();
-}
-
-static struct omap_uart_config sdp3430_uart_config __initdata = {
-	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
 static struct omap_lcd_config sdp3430_lcd_config __initdata = {
 	.ctrl_name	= "internal",
 };
 
 static struct omap_board_config_kernel sdp3430_config[] __initdata = {
-	{ OMAP_TAG_UART,	&sdp3430_uart_config },
 	{ OMAP_TAG_LCD,		&sdp3430_lcd_config },
 };
 
+static void __init omap_3430sdp_init_irq(void)
+{
+	omap_board_config = sdp3430_config;
+	omap_board_config_size = ARRAY_SIZE(sdp3430_config);
+	omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL);
+	omap_init_irq();
+	omap_gpio_init();
+}
+
 static int sdp3430_batt_table[] = {
 /* 0 C*/
 30800, 29500, 28300, 27100,
@@ -478,12 +475,15 @@ static inline void board_smc91x_init(void)
 
 #endif
 
+static void enable_board_wakeup_source(void)
+{
+	omap_cfg_reg(AF26_34XX_SYS_NIRQ); /* T2 interrupt line (keypad) */
+}
+
 static void __init omap_3430sdp_init(void)
 {
 	omap3430_i2c_init();
 	platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
-	omap_board_config = sdp3430_config;
-	omap_board_config_size = ARRAY_SIZE(sdp3430_config);
 	if (omap_rev() > OMAP3430_REV_ES1_0)
 		ts_gpio = SDP3430_TS_GPIO_IRQ_SDPV2;
 	else
@@ -495,6 +495,7 @@ static void __init omap_3430sdp_init(void)
 	omap_serial_init();
 	usb_musb_init();
 	board_smc91x_init();
+	enable_board_wakeup_source();
 }
 
 static void __init omap_3430sdp_map_io(void)
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index b0c7402248f..eb37c40ea83 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -39,7 +39,7 @@ static struct platform_device *sdp4430_devices[] __initdata = {
 };
 
 static struct omap_uart_config sdp4430_uart_config __initdata = {
-	.enabled_uarts	= (1 << 0) | (1 << 1) | (1 << 2),
+	.enabled_uarts	= (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
 };
 
 static struct omap_lcd_config sdp4430_lcd_config __initdata = {
@@ -47,14 +47,13 @@ static struct omap_lcd_config sdp4430_lcd_config __initdata = {
 };
 
 static struct omap_board_config_kernel sdp4430_config[] __initdata = {
-	{ OMAP_TAG_UART,	&sdp4430_uart_config },
 	{ OMAP_TAG_LCD,		&sdp4430_lcd_config },
 };
 
 static void __init gic_init_irq(void)
 {
-	gic_dist_init(0, IO_ADDRESS(OMAP44XX_GIC_DIST_BASE), 29);
-	gic_cpu_init(0, IO_ADDRESS(OMAP44XX_GIC_CPU_BASE));
+	gic_dist_init(0, OMAP2_IO_ADDRESS(OMAP44XX_GIC_DIST_BASE), 29);
+	gic_cpu_init(0, OMAP2_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE));
 }
 
 static void __init omap_4430sdp_init_irq(void)
diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c
index b4d4ef6d90b..a1132288c70 100644
--- a/arch/arm/mach-omap2/board-apollon.c
+++ b/arch/arm/mach-omap2/board-apollon.c
@@ -248,18 +248,6 @@ out:
 	clk_put(gpmc_fck);
 }
 
-static void __init omap_apollon_init_irq(void)
-{
-	omap2_init_common_hw(NULL, NULL);
-	omap_init_irq();
-	omap_gpio_init();
-	apollon_init_smc91x();
-}
-
-static struct omap_uart_config apollon_uart_config __initdata = {
-	.enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
-};
-
 static struct omap_usb_config apollon_usb_config __initdata = {
 	.register_dev	= 1,
 	.hmc_mode	= 0x14,	/* 0:dev 1:host1 2:disable */
@@ -272,10 +260,19 @@ static struct omap_lcd_config apollon_lcd_config __initdata = {
 };
 
 static struct omap_board_config_kernel apollon_config[] = {
-	{ OMAP_TAG_UART,	&apollon_uart_config },
 	{ OMAP_TAG_LCD,		&apollon_lcd_config },
 };
 
+static void __init omap_apollon_init_irq(void)
+{
+	omap_board_config = apollon_config;
+	omap_board_config_size = ARRAY_SIZE(apollon_config);
+	omap2_init_common_hw(NULL, NULL);
+	omap_init_irq();
+	omap_gpio_init();
+	apollon_init_smc91x();
+}
+
 static void __init apollon_led_init(void)
 {
 	/* LED0 - AA10 */
@@ -324,8 +321,6 @@ static void __init omap_apollon_init(void)
 	 * if not needed.
 	 */
 	platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
-	omap_board_config = apollon_config;
-	omap_board_config_size = ARRAY_SIZE(apollon_config);
 	omap_serial_init();
 }
 
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index fd00aa03690..2e09a1c444c 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -31,24 +31,19 @@
 #include <mach/board.h>
 #include <mach/common.h>
 
+static struct omap_board_config_kernel generic_config[] = {
+};
+
 static void __init omap_generic_init_irq(void)
 {
+	omap_board_config = generic_config;
+	omap_board_config_size = ARRAY_SIZE(generic_config);
 	omap2_init_common_hw(NULL, NULL);
 	omap_init_irq();
 }
 
-static struct omap_uart_config generic_uart_config __initdata = {
-	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
-static struct omap_board_config_kernel generic_config[] = {
-	{ OMAP_TAG_UART,	&generic_uart_config },
-};
-
 static void __init omap_generic_init(void)
 {
-	omap_board_config = generic_config;
-	omap_board_config_size = ARRAY_SIZE(generic_config);
 	omap_serial_init();
 }
 
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index 7b1d61d5bb2..eaa02d012c5 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -268,18 +268,6 @@ static void __init h4_init_flash(void)
 	h4_flash_resource.end	= base + SZ_64M - 1;
 }
 
-static void __init omap_h4_init_irq(void)
-{
-	omap2_init_common_hw(NULL, NULL);
-	omap_init_irq();
-	omap_gpio_init();
-	h4_init_flash();
-}
-
-static struct omap_uart_config h4_uart_config __initdata = {
-	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
 static struct omap_lcd_config h4_lcd_config __initdata = {
 	.ctrl_name	= "internal",
 };
@@ -318,10 +306,19 @@ static struct omap_usb_config h4_usb_config __initdata = {
 };
 
 static struct omap_board_config_kernel h4_config[] = {
-	{ OMAP_TAG_UART,	&h4_uart_config },
 	{ OMAP_TAG_LCD,		&h4_lcd_config },
 };
 
+static void __init omap_h4_init_irq(void)
+{
+	omap_board_config = h4_config;
+	omap_board_config_size = ARRAY_SIZE(h4_config);
+	omap2_init_common_hw(NULL, NULL);
+	omap_init_irq();
+	omap_gpio_init();
+	h4_init_flash();
+}
+
 static struct at24_platform_data m24c01 = {
 	.byte_len	= SZ_1K / 8,
 	.page_size	= 16,
@@ -366,8 +363,6 @@ static void __init omap_h4_init(void)
 			ARRAY_SIZE(h4_i2c_board_info));
 
 	platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
-	omap_board_config = h4_config;
-	omap_board_config_size = ARRAY_SIZE(h4_config);
 	omap_usb_init(&h4_usb_config);
 	omap_serial_init();
 }
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index ea383f88cb1..ec6854cbdd9 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -268,18 +268,6 @@ static inline void __init ldp_init_smsc911x(void)
 	gpio_direction_input(eth_gpio);
 }
 
-static void __init omap_ldp_init_irq(void)
-{
-	omap2_init_common_hw(NULL, NULL);
-	omap_init_irq();
-	omap_gpio_init();
-	ldp_init_smsc911x();
-}
-
-static struct omap_uart_config ldp_uart_config __initdata = {
-	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
 static struct platform_device ldp_lcd_device = {
 	.name		= "ldp_lcd",
 	.id		= -1,
@@ -290,10 +278,19 @@ static struct omap_lcd_config ldp_lcd_config __initdata = {
 };
 
 static struct omap_board_config_kernel ldp_config[] __initdata = {
-	{ OMAP_TAG_UART,	&ldp_uart_config },
 	{ OMAP_TAG_LCD,		&ldp_lcd_config },
 };
 
+static void __init omap_ldp_init_irq(void)
+{
+	omap_board_config = ldp_config;
+	omap_board_config_size = ARRAY_SIZE(ldp_config);
+	omap2_init_common_hw(NULL, NULL);
+	omap_init_irq();
+	omap_gpio_init();
+	ldp_init_smsc911x();
+}
+
 static struct twl4030_usb_data ldp_usb_data = {
 	.usb_mode	= T2_USB_MODE_ULPI,
 };
@@ -377,8 +374,6 @@ static void __init omap_ldp_init(void)
 {
 	omap_i2c_init();
 	platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
-	omap_board_config = ldp_config;
-	omap_board_config_size = ARRAY_SIZE(ldp_config);
 	ts_gpio = 54;
 	ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
 	spi_register_board_info(ldp_spi_board_info,
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
new file mode 100644
index 00000000000..8341632d260
--- /dev/null
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -0,0 +1,150 @@
+/*
+ * linux/arch/arm/mach-omap2/board-n8x0.c
+ *
+ * Copyright (C) 2005-2009 Nokia Corporation
+ * Author: Juha Yrjola <juha.yrjola@nokia.com>
+ *
+ * Modified from mach-omap2/board-generic.c
+ *
+ * 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/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/stddef.h>
+#include <linux/spi/spi.h>
+#include <linux/usb/musb.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+
+#include <mach/board.h>
+#include <mach/common.h>
+#include <mach/irqs.h>
+#include <mach/mcspi.h>
+#include <mach/onenand.h>
+#include <mach/serial.h>
+
+static struct omap2_mcspi_device_config p54spi_mcspi_config = {
+	.turbo_mode	= 0,
+	.single_channel = 1,
+};
+
+static struct spi_board_info n800_spi_board_info[] __initdata = {
+	{
+		.modalias	= "p54spi",
+		.bus_num	= 2,
+		.chip_select	= 0,
+		.max_speed_hz   = 48000000,
+		.controller_data = &p54spi_mcspi_config,
+	},
+};
+
+#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
+	defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
+
+static struct mtd_partition onenand_partitions[] = {
+	{
+		.name           = "bootloader",
+		.offset         = 0,
+		.size           = 0x20000,
+		.mask_flags     = MTD_WRITEABLE,	/* Force read-only */
+	},
+	{
+		.name           = "config",
+		.offset         = MTDPART_OFS_APPEND,
+		.size           = 0x60000,
+	},
+	{
+		.name           = "kernel",
+		.offset         = MTDPART_OFS_APPEND,
+		.size           = 0x200000,
+	},
+	{
+		.name           = "initfs",
+		.offset         = MTDPART_OFS_APPEND,
+		.size           = 0x400000,
+	},
+	{
+		.name           = "rootfs",
+		.offset         = MTDPART_OFS_APPEND,
+		.size           = MTDPART_SIZ_FULL,
+	},
+};
+
+static struct omap_onenand_platform_data board_onenand_data = {
+	.cs		= 0,
+	.gpio_irq	= 26,
+	.parts		= onenand_partitions,
+	.nr_parts	= ARRAY_SIZE(onenand_partitions),
+	.flags		= ONENAND_SYNC_READ,
+};
+
+static void __init n8x0_onenand_init(void)
+{
+	gpmc_onenand_init(&board_onenand_data);
+}
+
+#else
+
+static void __init n8x0_onenand_init(void) {}
+
+#endif
+
+static void __init n8x0_map_io(void)
+{
+	omap2_set_globals_242x();
+	omap2_map_common_io();
+}
+
+static void __init n8x0_init_irq(void)
+{
+	omap2_init_common_hw(NULL, NULL);
+	omap_init_irq();
+	omap_gpio_init();
+}
+
+static void __init n8x0_init_machine(void)
+{
+	/* FIXME: add n810 spi devices */
+	spi_register_board_info(n800_spi_board_info,
+				ARRAY_SIZE(n800_spi_board_info));
+
+	omap_serial_init();
+	n8x0_onenand_init();
+}
+
+MACHINE_START(NOKIA_N800, "Nokia N800")
+	.phys_io	= 0x48000000,
+	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
+	.boot_params	= 0x80000100,
+	.map_io		= n8x0_map_io,
+	.init_irq	= n8x0_init_irq,
+	.init_machine	= n8x0_init_machine,
+	.timer		= &omap_timer,
+MACHINE_END
+
+MACHINE_START(NOKIA_N810, "Nokia N810")
+	.phys_io	= 0x48000000,
+	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
+	.boot_params	= 0x80000100,
+	.map_io		= n8x0_map_io,
+	.init_irq	= n8x0_init_irq,
+	.init_machine	= n8x0_init_machine,
+	.timer		= &omap_timer,
+MACHINE_END
+
+MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
+	.phys_io	= 0x48000000,
+	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
+	.boot_params	= 0x80000100,
+	.map_io		= n8x0_map_io,
+	.init_irq	= n8x0_init_irq,
+	.init_machine	= n8x0_init_machine,
+	.timer		= &omap_timer,
+MACHINE_END
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index e00ba128cec..500c9956876 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -108,10 +108,6 @@ static struct platform_device omap3beagle_nand_device = {
 
 #include "sdram-micron-mt46h32m32lf-6.h"
 
-static struct omap_uart_config omap3_beagle_uart_config __initdata = {
-	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
 static struct twl4030_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
@@ -249,11 +245,16 @@ static struct regulator_init_data beagle_vpll2 = {
 	.consumer_supplies	= &beagle_vdvi_supply,
 };
 
+static struct twl4030_usb_data beagle_usb_data = {
+	.usb_mode	= T2_USB_MODE_ULPI,
+};
+
 static struct twl4030_platform_data beagle_twldata = {
 	.irq_base	= TWL4030_IRQ_BASE,
 	.irq_end	= TWL4030_IRQ_END,
 
 	/* platform_data for children goes here */
+	.usb		= &beagle_usb_data,
 	.gpio		= &beagle_gpio_data,
 	.vmmc1		= &beagle_vmmc1,
 	.vsim		= &beagle_vsim,
@@ -280,17 +281,6 @@ static int __init omap3_beagle_i2c_init(void)
 	return 0;
 }
 
-static void __init omap3_beagle_init_irq(void)
-{
-	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
-			     mt46h32m32lf6_sdrc_params);
-	omap_init_irq();
-#ifdef CONFIG_OMAP_32K_TIMER
-	omap2_gp_clockevent_set_gptimer(12);
-#endif
-	omap_gpio_init();
-}
-
 static struct gpio_led gpio_leds[] = {
 	{
 		.name			= "beagleboard::usr0",
@@ -345,10 +335,22 @@ static struct platform_device keys_gpio = {
 };
 
 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
-	{ OMAP_TAG_UART,	&omap3_beagle_uart_config },
 	{ OMAP_TAG_LCD,		&omap3_beagle_lcd_config },
 };
 
+static void __init omap3_beagle_init_irq(void)
+{
+	omap_board_config = omap3_beagle_config;
+	omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
+	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
+			     mt46h32m32lf6_sdrc_params);
+	omap_init_irq();
+#ifdef CONFIG_OMAP_32K_TIMER
+	omap2_gp_clockevent_set_gptimer(12);
+#endif
+	omap_gpio_init();
+}
+
 static struct platform_device *omap3_beagle_devices[] __initdata = {
 	&omap3_beagle_lcd_device,
 	&leds_gpio,
@@ -398,8 +400,6 @@ static void __init omap3_beagle_init(void)
 	omap3_beagle_i2c_init();
 	platform_add_devices(omap3_beagle_devices,
 			ARRAY_SIZE(omap3_beagle_devices));
-	omap_board_config = omap3_beagle_config;
-	omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 	omap_serial_init();
 
 	omap_cfg_reg(J25_34XX_GPIO170);
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index c4b144647dc..d50b9be9058 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -92,10 +92,6 @@ static inline void __init omap3evm_init_smc911x(void)
 	gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
 }
 
-static struct omap_uart_config omap3_evm_uart_config __initdata = {
-	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
 static struct twl4030_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
@@ -278,19 +274,20 @@ struct spi_board_info omap3evm_spi_board_info[] = {
 	},
 };
 
+static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
+	{ OMAP_TAG_LCD,		&omap3_evm_lcd_config },
+};
+
 static void __init omap3_evm_init_irq(void)
 {
+	omap_board_config = omap3_evm_config;
+	omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 	omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
 	omap_init_irq();
 	omap_gpio_init();
 	omap3evm_init_smc911x();
 }
 
-static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
-	{ OMAP_TAG_UART,	&omap3_evm_uart_config },
-	{ OMAP_TAG_LCD,		&omap3_evm_lcd_config },
-};
-
 static struct platform_device *omap3_evm_devices[] __initdata = {
 	&omap3_evm_lcd_device,
 	&omap3evm_smc911x_device,
@@ -301,8 +298,6 @@ static void __init omap3_evm_init(void)
 	omap3_evm_i2c_init();
 
 	platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
-	omap_board_config = omap3_evm_config;
-	omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 
 	spi_register_board_info(omap3evm_spi_board_info,
 				ARRAY_SIZE(omap3evm_spi_board_info));
diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c
index 864ee3d021f..b43f6e36b6d 100644
--- a/arch/arm/mach-omap2/board-omap3pandora.c
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
@@ -213,10 +213,6 @@ static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
 	{}	/* Terminator */
 };
 
-static struct omap_uart_config omap3pandora_uart_config __initdata = {
-	.enabled_uarts	= (1 << 2), /* UART3 */
-};
-
 static struct regulator_consumer_supply pandora_vmmc1_supply = {
 	.supply			= "vmmc",
 };
@@ -309,14 +305,6 @@ static int __init omap3pandora_i2c_init(void)
 	return 0;
 }
 
-static void __init omap3pandora_init_irq(void)
-{
-	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
-			     mt46h32m32lf6_sdrc_params);
-	omap_init_irq();
-	omap_gpio_init();
-}
-
 static void __init omap3pandora_ads7846_init(void)
 {
 	int gpio = OMAP3_PANDORA_TS_GPIO;
@@ -376,10 +364,19 @@ static struct omap_lcd_config omap3pandora_lcd_config __initdata = {
 };
 
 static struct omap_board_config_kernel omap3pandora_config[] __initdata = {
-	{ OMAP_TAG_UART,	&omap3pandora_uart_config },
 	{ OMAP_TAG_LCD,		&omap3pandora_lcd_config },
 };
 
+static void __init omap3pandora_init_irq(void)
+{
+	omap_board_config = omap3pandora_config;
+	omap_board_config_size = ARRAY_SIZE(omap3pandora_config);
+	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
+			     mt46h32m32lf6_sdrc_params);
+	omap_init_irq();
+	omap_gpio_init();
+}
+
 static struct platform_device *omap3pandora_devices[] __initdata = {
 	&omap3pandora_lcd_device,
 	&pandora_leds_gpio,
@@ -391,8 +388,6 @@ static void __init omap3pandora_init(void)
 	omap3pandora_i2c_init();
 	platform_add_devices(omap3pandora_devices,
 			ARRAY_SIZE(omap3pandora_devices));
-	omap_board_config = omap3pandora_config;
-	omap_board_config_size = ARRAY_SIZE(omap3pandora_config);
 	omap_serial_init();
 	spi_register_board_info(omap3pandora_spi_board_info,
 			ARRAY_SIZE(omap3pandora_spi_board_info));
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index 6bce23004aa..9917d2fddc2 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -271,9 +271,6 @@ static void __init overo_flash_init(void)
 			printk(KERN_ERR "Unable to register NAND device\n");
 	}
 }
-static struct omap_uart_config overo_uart_config __initdata = {
-	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
-};
 
 static struct twl4030_hsmmc_info mmc[] = {
 	{
@@ -360,14 +357,6 @@ static int __init overo_i2c_init(void)
 	return 0;
 }
 
-static void __init overo_init_irq(void)
-{
-	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
-			     mt46h32m32lf6_sdrc_params);
-	omap_init_irq();
-	omap_gpio_init();
-}
-
 static struct platform_device overo_lcd_device = {
 	.name		= "overo_lcd",
 	.id		= -1,
@@ -378,10 +367,19 @@ static struct omap_lcd_config overo_lcd_config __initdata = {
 };
 
 static struct omap_board_config_kernel overo_config[] __initdata = {
-	{ OMAP_TAG_UART,	&overo_uart_config },
 	{ OMAP_TAG_LCD,		&overo_lcd_config },
 };
 
+static void __init overo_init_irq(void)
+{
+	omap_board_config = overo_config;
+	omap_board_config_size = ARRAY_SIZE(overo_config);
+	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
+			     mt46h32m32lf6_sdrc_params);
+	omap_init_irq();
+	omap_gpio_init();
+}
+
 static struct platform_device *overo_devices[] __initdata = {
 	&overo_lcd_device,
 };
@@ -390,8 +388,6 @@ static void __init overo_init(void)
 {
 	overo_i2c_init();
 	platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices));
-	omap_board_config = overo_config;
-	omap_board_config_size = ARRAY_SIZE(overo_config);
 	omap_serial_init();
 	overo_flash_init();
 	usb_musb_init();
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index 56d931a425f..e70baa79901 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -1,5 +1,5 @@
 /*
- * linux/arch/arm/mach-omap2/board-rx51-flash.c
+ * linux/arch/arm/mach-omap2/board-rx51-peripherals.c
  *
  * Copyright (C) 2008-2009 Nokia
  *
@@ -282,7 +282,124 @@ static struct twl4030_usb_data rx51_usb_data = {
 	.usb_mode		= T2_USB_MODE_ULPI,
 };
 
-static struct twl4030_platform_data rx51_twldata = {
+static struct twl4030_ins sleep_on_seq[] __initdata = {
+/*
+ * Turn off VDD1 and VDD2.
+ */
+	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_OFF), 4},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_OFF), 2},
+/*
+ * And also turn off the OMAP3 PLLs and the sysclk output.
+ */
+	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_OFF), 3},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_OFF), 3},
+};
+
+static struct twl4030_script sleep_on_script __initdata = {
+	.script = sleep_on_seq,
+	.size   = ARRAY_SIZE(sleep_on_seq),
+	.flags  = TWL4030_SLEEP_SCRIPT,
+};
+
+static struct twl4030_ins wakeup_seq[] __initdata = {
+/*
+ * Reenable the OMAP3 PLLs.
+ * Wakeup VDD1 and VDD2.
+ * Reenable sysclk output.
+ */
+	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_ACTIVE), 0x30},
+	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 0x30},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 0x37},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 3},
+};
+
+static struct twl4030_script wakeup_script __initdata = {
+	.script	= wakeup_seq,
+	.size	= ARRAY_SIZE(wakeup_seq),
+	.flags	= TWL4030_WAKEUP12_SCRIPT,
+};
+
+static struct twl4030_ins wakeup_p3_seq[] __initdata = {
+/*
+ * Wakeup VDD1 (dummy to be able to insert a delay)
+ * Enable CLKEN
+ */
+	{MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_ACTIVE), 3},
+};
+
+static struct twl4030_script wakeup_p3_script __initdata = {
+	.script	= wakeup_p3_seq,
+	.size	= ARRAY_SIZE(wakeup_p3_seq),
+	.flags	= TWL4030_WAKEUP3_SCRIPT,
+};
+
+static struct twl4030_ins wrst_seq[] __initdata = {
+/*
+ * Reset twl4030.
+ * Reset VDD1 regulator.
+ * Reset VDD2 regulator.
+ * Reset VPLL1 regulator.
+ * Enable sysclk output.
+ * Reenable twl4030.
+ */
+	{MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_OFF), 2},
+	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, 0, 1, RES_STATE_ACTIVE),
+		0x13},
+	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 2, RES_STATE_WRST), 0x13},
+	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 3, RES_STATE_OFF), 0x13},
+	{MSG_SINGULAR(DEV_GRP_NULL, RES_VDD1, RES_STATE_WRST), 0x13},
+	{MSG_SINGULAR(DEV_GRP_NULL, RES_VDD2, RES_STATE_WRST), 0x13},
+	{MSG_SINGULAR(DEV_GRP_NULL, RES_VPLL1, RES_STATE_WRST), 0x35},
+	{MSG_SINGULAR(DEV_GRP_P1, RES_HFCLKOUT, RES_STATE_ACTIVE), 2},
+	{MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_ACTIVE), 2},
+};
+
+static struct twl4030_script wrst_script __initdata = {
+	.script = wrst_seq,
+	.size   = ARRAY_SIZE(wrst_seq),
+	.flags  = TWL4030_WRST_SCRIPT,
+};
+
+static struct twl4030_script *twl4030_scripts[] __initdata = {
+	/* wakeup12 script should be loaded before sleep script, otherwise a
+	   board might hit retention before loading of wakeup script is
+	   completed. This can cause boot failures depending on timing issues.
+	*/
+	&wakeup_script,
+	&sleep_on_script,
+	&wakeup_p3_script,
+	&wrst_script,
+};
+
+static struct twl4030_resconfig twl4030_rconfig[] __initdata = {
+	{ .resource = RES_VINTANA1, .devgroup = -1, .type = -1, .type2 = 1 },
+	{ .resource = RES_VINTANA2, .devgroup = -1, .type = -1, .type2 = 1 },
+	{ .resource = RES_VINTDIG, .devgroup = -1, .type = -1, .type2 = 1 },
+	{ .resource = RES_VMMC1, .devgroup = -1, .type = -1, .type2 = 3},
+	{ .resource = RES_VMMC2, .devgroup = DEV_GRP_NULL, .type = -1,
+	  .type2 = 3},
+	{ .resource = RES_VAUX1, .devgroup = -1, .type = -1, .type2 = 3},
+	{ .resource = RES_VAUX2, .devgroup = -1, .type = -1, .type2 = 3},
+	{ .resource = RES_VAUX3, .devgroup = -1, .type = -1, .type2 = 3},
+	{ .resource = RES_VAUX4, .devgroup = -1, .type = -1, .type2 = 3},
+	{ .resource = RES_VPLL2, .devgroup = -1, .type = -1, .type2 = 3},
+	{ .resource = RES_VDAC, .devgroup = -1, .type = -1, .type2 = 3},
+	{ .resource = RES_VSIM, .devgroup = DEV_GRP_NULL, .type = -1,
+	  .type2 = 3},
+	{ .resource = RES_CLKEN, .devgroup = DEV_GRP_P3, .type = -1,
+		.type2 = 1 },
+	{ 0, 0},
+};
+
+static struct twl4030_power_data rx51_t2scripts_data __initdata = {
+	.scripts        = twl4030_scripts,
+	.num = ARRAY_SIZE(twl4030_scripts),
+	.resource_config = twl4030_rconfig,
+};
+
+
+
+static struct twl4030_platform_data rx51_twldata __initdata = {
 	.irq_base		= TWL4030_IRQ_BASE,
 	.irq_end		= TWL4030_IRQ_END,
 
@@ -291,6 +408,7 @@ static struct twl4030_platform_data rx51_twldata = {
 	.keypad			= &rx51_kp_data,
 	.madc			= &rx51_madc_data,
 	.usb			= &rx51_usb_data,
+	.power			= &rx51_t2scripts_data,
 
 	.vaux1			= &rx51_vaux1,
 	.vaux2			= &rx51_vaux2,
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 1c9e07fe826..f9196c3b1a7 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -31,10 +31,6 @@
 #include <mach/gpmc.h>
 #include <mach/usb.h>
 
-static struct omap_uart_config rx51_uart_config = {
-	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
-};
-
 static struct omap_lcd_config rx51_lcd_config = {
 	.ctrl_name	= "internal",
 };
@@ -52,7 +48,6 @@ static struct omap_fbmem_config rx51_fbmem2_config = {
 };
 
 static struct omap_board_config_kernel rx51_config[] = {
-	{ OMAP_TAG_UART,	&rx51_uart_config },
 	{ OMAP_TAG_FBMEM,	&rx51_fbmem0_config },
 	{ OMAP_TAG_FBMEM,	&rx51_fbmem1_config },
 	{ OMAP_TAG_FBMEM,	&rx51_fbmem2_config },
@@ -61,6 +56,8 @@ static struct omap_board_config_kernel rx51_config[] = {
 
 static void __init rx51_init_irq(void)
 {
+	omap_board_config = rx51_config;
+	omap_board_config_size = ARRAY_SIZE(rx51_config);
 	omap2_init_common_hw(NULL, NULL);
 	omap_init_irq();
 	omap_gpio_init();
@@ -70,8 +67,6 @@ extern void __init rx51_peripherals_init(void);
 
 static void __init rx51_init(void)
 {
-	omap_board_config = rx51_config;
-	omap_board_config_size = ARRAY_SIZE(rx51_config);
 	omap_serial_init();
 	usb_musb_init();
 	rx51_peripherals_init();
diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c
index bac5c4321ff..1f13e2a1f32 100644
--- a/arch/arm/mach-omap2/board-zoom-debugboard.c
+++ b/arch/arm/mach-omap2/board-zoom-debugboard.c
@@ -12,6 +12,7 @@
 #include <linux/gpio.h>
 #include <linux/serial_8250.h>
 #include <linux/smsc911x.h>
+#include <linux/interrupt.h>
 
 #include <mach/gpmc.h>
 
@@ -84,6 +85,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 		.mapbase	= 0x10000000,
 		.irq		= OMAP_GPIO_IRQ(102),
 		.flags		= UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
+		.irqflags	= IRQF_SHARED | IRQF_TRIGGER_RISING,
 		.iotype		= UPIO_MEM,
 		.regshift	= 1,
 		.uartclk	= QUART_CLK,
@@ -94,7 +96,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 
 static struct platform_device zoom2_debugboard_serial_device = {
 	.name			= "serial8250",
-	.id			= PLAT8250_DEV_PLATFORM1,
+	.id			= 3,
 	.dev			= {
 		.platform_data	= serial_platform_data,
 	},
@@ -127,6 +129,7 @@ static inline void __init zoom2_init_quaduart(void)
 static inline int omap_zoom2_debugboard_detect(void)
 {
 	int debug_board_detect = 0;
+	int ret = 1;
 
 	debug_board_detect = ZOOM2_SMSC911X_GPIO;
 
@@ -138,10 +141,10 @@ static inline int omap_zoom2_debugboard_detect(void)
 	gpio_direction_input(debug_board_detect);
 
 	if (!gpio_get_value(debug_board_detect)) {
-		gpio_free(debug_board_detect);
-		return 0;
+		ret = 0;
 	}
-	return 1;
+	gpio_free(debug_board_detect);
+	return ret;
 }
 
 static struct platform_device *zoom2_devices[] __initdata = {
diff --git a/arch/arm/mach-omap2/board-zoom2.c b/arch/arm/mach-omap2/board-zoom2.c
index 427b7b8b123..324009edbd5 100644
--- a/arch/arm/mach-omap2/board-zoom2.c
+++ b/arch/arm/mach-omap2/board-zoom2.c
@@ -12,36 +12,217 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/input.h>
 #include <linux/gpio.h>
 #include <linux/i2c/twl4030.h>
+#include <linux/regulator/machine.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
 #include <mach/common.h>
 #include <mach/usb.h>
+#include <mach/keypad.h>
 
 #include "mmc-twl4030.h"
 
-static void __init omap_zoom2_init_irq(void)
+/* Zoom2 has Qwerty keyboard*/
+static int zoom2_twl4030_keymap[] = {
+	KEY(0, 0, KEY_E),
+	KEY(1, 0, KEY_R),
+	KEY(2, 0, KEY_T),
+	KEY(3, 0, KEY_HOME),
+	KEY(6, 0, KEY_I),
+	KEY(7, 0, KEY_LEFTSHIFT),
+	KEY(0, 1, KEY_D),
+	KEY(1, 1, KEY_F),
+	KEY(2, 1, KEY_G),
+	KEY(3, 1, KEY_SEND),
+	KEY(6, 1, KEY_K),
+	KEY(7, 1, KEY_ENTER),
+	KEY(0, 2, KEY_X),
+	KEY(1, 2, KEY_C),
+	KEY(2, 2, KEY_V),
+	KEY(3, 2, KEY_END),
+	KEY(6, 2, KEY_DOT),
+	KEY(7, 2, KEY_CAPSLOCK),
+	KEY(0, 3, KEY_Z),
+	KEY(1, 3, KEY_KPPLUS),
+	KEY(2, 3, KEY_B),
+	KEY(3, 3, KEY_F1),
+	KEY(6, 3, KEY_O),
+	KEY(7, 3, KEY_SPACE),
+	KEY(0, 4, KEY_W),
+	KEY(1, 4, KEY_Y),
+	KEY(2, 4, KEY_U),
+	KEY(3, 4, KEY_F2),
+	KEY(4, 4, KEY_VOLUMEUP),
+	KEY(6, 4, KEY_L),
+	KEY(7, 4, KEY_LEFT),
+	KEY(0, 5, KEY_S),
+	KEY(1, 5, KEY_H),
+	KEY(2, 5, KEY_J),
+	KEY(3, 5, KEY_F3),
+	KEY(5, 5, KEY_VOLUMEDOWN),
+	KEY(6, 5, KEY_M),
+	KEY(4, 5, KEY_ENTER),
+	KEY(7, 5, KEY_RIGHT),
+	KEY(0, 6, KEY_Q),
+	KEY(1, 6, KEY_A),
+	KEY(2, 6, KEY_N),
+	KEY(3, 6, KEY_BACKSPACE),
+	KEY(6, 6, KEY_P),
+	KEY(7, 6, KEY_UP),
+	KEY(6, 7, KEY_SELECT),
+	KEY(7, 7, KEY_DOWN),
+	KEY(0, 7, KEY_PROG1),	/*MACRO 1 <User defined> */
+	KEY(1, 7, KEY_PROG2),	/*MACRO 2 <User defined> */
+	KEY(2, 7, KEY_PROG3),	/*MACRO 3 <User defined> */
+	KEY(3, 7, KEY_PROG4),	/*MACRO 4 <User defined> */
+	0
+};
+
+static struct twl4030_keypad_data zoom2_kp_twl4030_data = {
+	.rows		= 8,
+	.cols		= 8,
+	.keymap		= zoom2_twl4030_keymap,
+	.keymapsize	= ARRAY_SIZE(zoom2_twl4030_keymap),
+	.rep		= 1,
+};
+
+static struct omap_board_config_kernel zoom2_config[] __initdata = {
+};
+
+static struct regulator_consumer_supply zoom2_vmmc1_supply = {
+	.supply		= "vmmc",
+};
+
+static struct regulator_consumer_supply zoom2_vsim_supply = {
+	.supply		= "vmmc_aux",
+};
+
+static struct regulator_consumer_supply zoom2_vmmc2_supply = {
+	.supply		= "vmmc",
+};
+
+/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
+static struct regulator_init_data zoom2_vmmc1 = {
+	.constraints = {
+		.min_uV			= 1850000,
+		.max_uV			= 3150000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies  = 1,
+	.consumer_supplies      = &zoom2_vmmc1_supply,
+};
+
+/* VMMC2 for MMC2 card */
+static struct regulator_init_data zoom2_vmmc2 = {
+	.constraints = {
+		.min_uV			= 1850000,
+		.max_uV			= 1850000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies  = 1,
+	.consumer_supplies      = &zoom2_vmmc2_supply,
+};
+
+/* VSIM for OMAP VDD_MMC1A (i/o for DAT4..DAT7) */
+static struct regulator_init_data zoom2_vsim = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 3000000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies  = 1,
+	.consumer_supplies      = &zoom2_vsim_supply,
+};
+
+static struct twl4030_hsmmc_info mmc[] __initdata = {
+	{
+		.mmc		= 1,
+		.wires		= 4,
+		.gpio_wp	= -EINVAL,
+	},
+	{
+		.mmc		= 2,
+		.wires		= 4,
+		.gpio_wp	= -EINVAL,
+	},
+	{}      /* Terminator */
+};
+
+static int zoom2_twl_gpio_setup(struct device *dev,
+		unsigned gpio, unsigned ngpio)
 {
-	omap2_init_common_hw(NULL, NULL);
-	omap_init_irq();
-	omap_gpio_init();
+	/* gpio + 0 is "mmc0_cd" (input/IRQ),
+	 * gpio + 1 is "mmc1_cd" (input/IRQ)
+	 */
+	mmc[0].gpio_cd = gpio + 0;
+	mmc[1].gpio_cd = gpio + 1;
+	twl4030_mmc_init(mmc);
+
+	/* link regulators to MMC adapters ... we "know" the
+	 * regulators will be set up only *after* we return.
+	*/
+	zoom2_vmmc1_supply.dev = mmc[0].dev;
+	zoom2_vsim_supply.dev = mmc[0].dev;
+	zoom2_vmmc2_supply.dev = mmc[1].dev;
+
+	return 0;
 }
 
-static struct omap_uart_config zoom2_uart_config __initdata = {
-	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
+
+static int zoom2_batt_table[] = {
+/* 0 C*/
+30800, 29500, 28300, 27100,
+26000, 24900, 23900, 22900, 22000, 21100, 20300, 19400, 18700, 17900,
+17200, 16500, 15900, 15300, 14700, 14100, 13600, 13100, 12600, 12100,
+11600, 11200, 10800, 10400, 10000, 9630,  9280,  8950,  8620,  8310,
+8020,  7730,  7460,  7200,  6950,  6710,  6470,  6250,  6040,  5830,
+5640,  5450,  5260,  5090,  4920,  4760,  4600,  4450,  4310,  4170,
+4040,  3910,  3790,  3670,  3550
 };
 
-static struct omap_board_config_kernel zoom2_config[] __initdata = {
-	{ OMAP_TAG_UART,	&zoom2_uart_config },
+static struct twl4030_bci_platform_data zoom2_bci_data = {
+	.battery_tmp_tbl	= zoom2_batt_table,
+	.tblsize		= ARRAY_SIZE(zoom2_batt_table),
 };
 
+static struct twl4030_usb_data zoom2_usb_data = {
+	.usb_mode	= T2_USB_MODE_ULPI,
+};
+
+static void __init omap_zoom2_init_irq(void)
+{
+	omap_board_config = zoom2_config;
+	omap_board_config_size = ARRAY_SIZE(zoom2_config);
+	omap2_init_common_hw(NULL, NULL);
+	omap_init_irq();
+	omap_gpio_init();
+}
+
 static struct twl4030_gpio_platform_data zoom2_gpio_data = {
 	.gpio_base	= OMAP_MAX_GPIO_LINES,
 	.irq_base	= TWL4030_GPIO_IRQ_BASE,
 	.irq_end	= TWL4030_GPIO_IRQ_END,
+	.setup		= zoom2_twl_gpio_setup,
+};
+
+static struct twl4030_madc_platform_data zoom2_madc_data = {
+	.irq_line	= 1,
 };
 
 static struct twl4030_platform_data zoom2_twldata = {
@@ -49,7 +230,15 @@ static struct twl4030_platform_data zoom2_twldata = {
 	.irq_end	= TWL4030_IRQ_END,
 
 	/* platform_data for children goes here */
+	.bci		= &zoom2_bci_data,
+	.madc		= &zoom2_madc_data,
+	.usb		= &zoom2_usb_data,
 	.gpio		= &zoom2_gpio_data,
+	.keypad		= &zoom2_kp_twl4030_data,
+	.vmmc1          = &zoom2_vmmc1,
+	.vmmc2          = &zoom2_vmmc2,
+	.vsim           = &zoom2_vsim,
+
 };
 
 static struct i2c_board_info __initdata zoom2_i2c_boardinfo[] = {
@@ -70,26 +259,13 @@ static int __init omap_i2c_init(void)
 	return 0;
 }
 
-static struct twl4030_hsmmc_info mmc[] __initdata = {
-	{
-		.mmc		= 1,
-		.wires		= 4,
-		.gpio_cd	= -EINVAL,
-		.gpio_wp	= -EINVAL,
-	},
-	{}	/* Terminator */
-};
-
 extern int __init omap_zoom2_debugboard_init(void);
 
 static void __init omap_zoom2_init(void)
 {
 	omap_i2c_init();
-	omap_board_config = zoom2_config;
-	omap_board_config_size = ARRAY_SIZE(zoom2_config);
 	omap_serial_init();
 	omap_zoom2_debugboard_init();
-	twl4030_mmc_init(mmc);
 	usb_musb_init();
 }
 
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 456e2ad5f62..f2a92d614f0 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -1043,5 +1043,7 @@ void omap2_clk_disable_unused(struct clk *clk)
 		omap2_clk_disable(clk);
 	} else
 		_omap2_clk_disable(clk);
+	if (clk->clkdm != NULL)
+		pwrdm_clkdm_state_switch(clk->clkdm);
 }
 #endif
diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index cd7819cc0c9..fafcd32e690 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -27,6 +27,7 @@
 #include <linux/limits.h>
 #include <linux/bitops.h>
 
+#include <mach/cpu.h>
 #include <mach/clock.h>
 #include <mach/sram.h>
 #include <asm/div64.h>
@@ -1067,17 +1068,17 @@ static int __init omap2_clk_arch_init(void)
 		return -EINVAL;
 
 	/* REVISIT: not yet ready for 343x */
-#if 0
-	if (clk_set_rate(&virt_prcm_set, mpurate))
-		printk(KERN_ERR "Could not find matching MPU rate\n");
-#endif
+	if (clk_set_rate(&dpll1_ck, mpurate))
+		printk(KERN_ERR "*** Unable to set MPU rate\n");
 
 	recalculate_root_clocks();
 
-	printk(KERN_INFO "Switched to new clocking rate (Crystal/DPLL3/MPU): "
+	printk(KERN_INFO "Switched to new clocking rate (Crystal/Core/MPU): "
 	       "%ld.%01ld/%ld/%ld MHz\n",
-	       (osc_sys_ck.rate / 1000000), (osc_sys_ck.rate / 100000) % 10,
-	       (core_ck.rate / 1000000), (dpll1_fck.rate / 1000000)) ;
+	       (osc_sys_ck.rate / 1000000), ((osc_sys_ck.rate / 100000) % 10),
+	       (core_ck.rate / 1000000), (arm_fck.rate / 1000000)) ;
+
+	calibrate_delay();
 
 	return 0;
 }
@@ -1136,7 +1137,7 @@ int __init omap2_clk_init(void)
 
 	recalculate_root_clocks();
 
-	printk(KERN_INFO "Clocking rate (Crystal/DPLL/ARM core): "
+	printk(KERN_INFO "Clocking rate (Crystal/Core/MPU): "
 	       "%ld.%01ld/%ld/%ld MHz\n",
 	       (osc_sys_ck.rate / 1000000), (osc_sys_ck.rate / 100000) % 10,
 	       (core_ck.rate / 1000000), (arm_fck.rate / 1000000));
diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h
index 57cc2725b92..c8119781e00 100644
--- a/arch/arm/mach-omap2/clock34xx.h
+++ b/arch/arm/mach-omap2/clock34xx.h
@@ -1020,6 +1020,7 @@ static struct clk arm_fck = {
 	.clksel_reg	= OMAP_CM_REGADDR(MPU_MOD, OMAP3430_CM_IDLEST_PLL),
 	.clksel_mask	= OMAP3430_ST_MPU_CLK_MASK,
 	.clksel		= arm_fck_clksel,
+	.clkdm_name	= "mpu_clkdm",
 	.recalc		= &omap2_clksel_recalc,
 };
 
@@ -1155,7 +1156,6 @@ static struct clk gfx_cg1_ck = {
 	.name		= "gfx_cg1_ck",
 	.ops		= &clkops_omap2_dflt_wait,
 	.parent		= &gfx_l3_fck, /* REVISIT: correct? */
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(GFX_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430ES1_EN_2D_SHIFT,
 	.clkdm_name	= "gfx_3430es1_clkdm",
@@ -1166,7 +1166,6 @@ static struct clk gfx_cg2_ck = {
 	.name		= "gfx_cg2_ck",
 	.ops		= &clkops_omap2_dflt_wait,
 	.parent		= &gfx_l3_fck, /* REVISIT: correct? */
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(GFX_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430ES1_EN_3D_SHIFT,
 	.clkdm_name	= "gfx_3430es1_clkdm",
@@ -1210,7 +1209,6 @@ static struct clk sgx_ick = {
 	.name		= "sgx_ick",
 	.ops		= &clkops_omap2_dflt_wait,
 	.parent		= &l3_ick,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430ES2_SGX_MOD, CM_ICLKEN),
 	.enable_bit	= OMAP3430ES2_CM_ICLKEN_SGX_EN_SGX_SHIFT,
 	.clkdm_name	= "sgx_clkdm",
@@ -1223,7 +1221,6 @@ static struct clk d2d_26m_fck = {
 	.name		= "d2d_26m_fck",
 	.ops		= &clkops_omap2_dflt_wait,
 	.parent		= &sys_ck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
 	.enable_bit	= OMAP3430ES1_EN_D2D_SHIFT,
 	.clkdm_name	= "d2d_clkdm",
@@ -1234,7 +1231,6 @@ static struct clk modem_fck = {
 	.name		= "modem_fck",
 	.ops		= &clkops_omap2_dflt_wait,
 	.parent		= &sys_ck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
 	.enable_bit	= OMAP3430_EN_MODEM_SHIFT,
 	.clkdm_name	= "d2d_clkdm",
@@ -1622,7 +1618,6 @@ static struct clk core_l3_ick = {
 	.name		= "core_l3_ick",
 	.ops		= &clkops_null,
 	.parent		= &l3_ick,
-	.init		= &omap2_init_clk_clkdm,
 	.clkdm_name	= "core_l3_clkdm",
 	.recalc		= &followparent_recalc,
 };
@@ -1691,7 +1686,6 @@ static struct clk core_l4_ick = {
 	.name		= "core_l4_ick",
 	.ops		= &clkops_null,
 	.parent		= &l4_ick,
-	.init		= &omap2_init_clk_clkdm,
 	.clkdm_name	= "core_l4_clkdm",
 	.recalc		= &followparent_recalc,
 };
@@ -2089,7 +2083,6 @@ static struct clk dss_tv_fck = {
 	.name		= "dss_tv_fck",
 	.ops		= &clkops_omap2_dflt,
 	.parent		= &omap_54m_fck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430_EN_TV_SHIFT,
 	.clkdm_name	= "dss_clkdm",
@@ -2100,7 +2093,6 @@ static struct clk dss_96m_fck = {
 	.name		= "dss_96m_fck",
 	.ops		= &clkops_omap2_dflt,
 	.parent		= &omap_96m_fck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430_EN_TV_SHIFT,
 	.clkdm_name	= "dss_clkdm",
@@ -2111,7 +2103,6 @@ static struct clk dss2_alwon_fck = {
 	.name		= "dss2_alwon_fck",
 	.ops		= &clkops_omap2_dflt,
 	.parent		= &sys_ck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430_EN_DSS2_SHIFT,
 	.clkdm_name	= "dss_clkdm",
@@ -2123,7 +2114,6 @@ static struct clk dss_ick_3430es1 = {
 	.name		= "dss_ick",
 	.ops		= &clkops_omap2_dflt,
 	.parent		= &l4_ick,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_ICLKEN),
 	.enable_bit	= OMAP3430_CM_ICLKEN_DSS_EN_DSS_SHIFT,
 	.clkdm_name	= "dss_clkdm",
@@ -2135,7 +2125,6 @@ static struct clk dss_ick_3430es2 = {
 	.name		= "dss_ick",
 	.ops		= &clkops_omap3430es2_dss_usbhost_wait,
 	.parent		= &l4_ick,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_ICLKEN),
 	.enable_bit	= OMAP3430_CM_ICLKEN_DSS_EN_DSS_SHIFT,
 	.clkdm_name	= "dss_clkdm",
@@ -2159,7 +2148,6 @@ static struct clk cam_ick = {
 	.name		= "cam_ick",
 	.ops		= &clkops_omap2_dflt,
 	.parent		= &l4_ick,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_ICLKEN),
 	.enable_bit	= OMAP3430_EN_CAM_SHIFT,
 	.clkdm_name	= "cam_clkdm",
@@ -2170,7 +2158,6 @@ static struct clk csi2_96m_fck = {
 	.name		= "csi2_96m_fck",
 	.ops		= &clkops_omap2_dflt,
 	.parent		= &core_96m_fck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430_EN_CSI2_SHIFT,
 	.clkdm_name	= "cam_clkdm",
@@ -2183,7 +2170,6 @@ static struct clk usbhost_120m_fck = {
 	.name		= "usbhost_120m_fck",
 	.ops		= &clkops_omap2_dflt,
 	.parent		= &dpll5_m2_ck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430ES2_EN_USBHOST2_SHIFT,
 	.clkdm_name	= "usbhost_clkdm",
@@ -2194,7 +2180,6 @@ static struct clk usbhost_48m_fck = {
 	.name		= "usbhost_48m_fck",
 	.ops		= &clkops_omap3430es2_dss_usbhost_wait,
 	.parent		= &omap_48m_fck,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430ES2_EN_USBHOST1_SHIFT,
 	.clkdm_name	= "usbhost_clkdm",
@@ -2206,7 +2191,6 @@ static struct clk usbhost_ick = {
 	.name		= "usbhost_ick",
 	.ops		= &clkops_omap3430es2_dss_usbhost_wait,
 	.parent		= &l4_ick,
-	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN),
 	.enable_bit	= OMAP3430ES2_EN_USBHOST_SHIFT,
 	.clkdm_name	= "usbhost_clkdm",
@@ -2268,7 +2252,6 @@ static struct clk gpt1_fck = {
 static struct clk wkup_32k_fck = {
 	.name		= "wkup_32k_fck",
 	.ops		= &clkops_null,
-	.init		= &omap2_init_clk_clkdm,
 	.parent		= &omap_32k_fck,
 	.clkdm_name	= "wkup_clkdm",
 	.recalc		= &followparent_recalc,
@@ -2383,7 +2366,6 @@ static struct clk per_96m_fck = {
 	.name		= "per_96m_fck",
 	.ops		= &clkops_null,
 	.parent		= &omap_96m_alwon_fck,
-	.init		= &omap2_init_clk_clkdm,
 	.clkdm_name	= "per_clkdm",
 	.recalc		= &followparent_recalc,
 };
@@ -2392,7 +2374,6 @@ static struct clk per_48m_fck = {
 	.name		= "per_48m_fck",
 	.ops		= &clkops_null,
 	.parent		= &omap_48m_fck,
-	.init		= &omap2_init_clk_clkdm,
 	.clkdm_name	= "per_clkdm",
 	.recalc		= &followparent_recalc,
 };
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index 0e7d501865b..4ef7b4f5474 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -299,7 +299,8 @@ struct clockdomain *clkdm_lookup(const char *name)
  * anything else to indicate failure; or -EINVAL if the function pointer
  * is null.
  */
-int clkdm_for_each(int (*fn)(struct clockdomain *clkdm))
+int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user),
+			void *user)
 {
 	struct clockdomain *clkdm;
 	int ret = 0;
@@ -309,7 +310,7 @@ int clkdm_for_each(int (*fn)(struct clockdomain *clkdm))
 
 	mutex_lock(&clkdm_mutex);
 	list_for_each_entry(clkdm, &clkdm_list, node) {
-		ret = (*fn)(clkdm);
+		ret = (*fn)(clkdm, user);
 		if (ret)
 			break;
 	}
@@ -484,6 +485,8 @@ void omap2_clkdm_allow_idle(struct clockdomain *clkdm)
 			    v << __ffs(clkdm->clktrctrl_mask),
 			    clkdm->pwrdm.ptr->prcm_offs,
 			    CM_CLKSTCTRL);
+
+	pwrdm_clkdm_state_switch(clkdm);
 }
 
 /**
@@ -572,6 +575,7 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
 		omap2_clkdm_wakeup(clkdm);
 
 	pwrdm_wait_transition(clkdm->pwrdm.ptr);
+	pwrdm_clkdm_state_switch(clkdm);
 
 	return 0;
 }
@@ -624,6 +628,8 @@ int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
 	else
 		omap2_clkdm_sleep(clkdm);
 
+	pwrdm_clkdm_state_switch(clkdm);
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap2/cm.c b/arch/arm/mach-omap2/cm.c
new file mode 100644
index 00000000000..8eb2dab8c7d
--- /dev/null
+++ b/arch/arm/mach-omap2/cm.c
@@ -0,0 +1,70 @@
+/*
+ * OMAP2/3 CM module functions
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <asm/atomic.h>
+
+#include "cm.h"
+#include "cm-regbits-24xx.h"
+#include "cm-regbits-34xx.h"
+
+/* MAX_MODULE_READY_TIME: max milliseconds for module to leave idle */
+#define MAX_MODULE_READY_TIME		20000
+
+static const u8 cm_idlest_offs[] = {
+	CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3
+};
+
+/**
+ * omap2_cm_wait_idlest_ready - wait for a module to leave idle or standby
+ * @prcm_mod: PRCM module offset
+ * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3)
+ * @idlest_shift: shift of the bit in the CM_IDLEST* register to check
+ *
+ * XXX document
+ */
+int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
+{
+	int ena = 0, i = 0;
+	u8 cm_idlest_reg;
+	u32 mask;
+
+	if (!idlest_id || (idlest_id > ARRAY_SIZE(cm_idlest_offs)))
+		return -EINVAL;
+
+	cm_idlest_reg = cm_idlest_offs[idlest_id - 1];
+
+	if (cpu_is_omap24xx())
+		ena = idlest_shift;
+	else if (cpu_is_omap34xx())
+		ena = 0;
+	else
+		BUG();
+
+	mask = 1 << idlest_shift;
+
+	/* XXX should be OMAP2 CM */
+	while (((cm_read_mod_reg(prcm_mod, cm_idlest_reg) & mask) != ena) &&
+	       (i++ < MAX_MODULE_READY_TIME))
+		udelay(1);
+
+	return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
+}
+
diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index f3c91a1ca39..cfd0b726ba4 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -17,11 +17,11 @@
 #include "prcm-common.h"
 
 #define OMAP2420_CM_REGADDR(module, reg)				\
-			IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
+			OMAP2_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
 #define OMAP2430_CM_REGADDR(module, reg)				\
-			IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg))
+			OMAP2_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg))
 #define OMAP34XX_CM_REGADDR(module, reg)				\
-			IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg))
+			OMAP2_IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg))
 
 /*
  * Architecture-specific global CM registers
@@ -98,6 +98,10 @@ extern u32 cm_read_mod_reg(s16 module, u16 idx);
 extern void cm_write_mod_reg(u32 val, s16 module, u16 idx);
 extern u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
 
+extern int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
+				      u8 idlest_shift);
+extern int omap4_cm_wait_module_ready(u32 prcm_mod, u8 prcm_dev_offs);
+
 static inline u32 cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
 {
 	return cm_rmw_mod_reg_bits(bits, bits, module, idx);
diff --git a/arch/arm/mach-omap2/cm4xxx.c b/arch/arm/mach-omap2/cm4xxx.c
new file mode 100644
index 00000000000..e4ebd6d5313
--- /dev/null
+++ b/arch/arm/mach-omap2/cm4xxx.c
@@ -0,0 +1,68 @@
+/*
+ * OMAP4 CM module functions
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <asm/atomic.h>
+
+#include "cm.h"
+#include "cm-regbits-4xxx.h"
+
+/* XXX move this to cm.h */
+/* MAX_MODULE_READY_TIME: max milliseconds for module to leave idle */
+#define MAX_MODULE_READY_TIME			20000
+
+/*
+ * OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK: isolates the IDLEST field in the
+ * CM_CLKCTRL register.
+ */
+#define OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK	(0x2 << 16)
+
+/*
+ * OMAP4 prcm_mod u32 fields contain packed data: the CM ID in bit 16 and
+ * the PRCM module offset address (from the CM module base) in bits 15-0.
+ */
+#define OMAP4_PRCM_MOD_CM_ID_SHIFT		16
+#define OMAP4_PRCM_MOD_OFFS_MASK		0xffff
+
+/**
+ * omap4_cm_wait_idlest_ready - wait for a module to leave idle or standby
+ * @prcm_mod: PRCM module offset (XXX example)
+ * @prcm_dev_offs: PRCM device offset (e.g. MCASP XXX example)
+ *
+ * XXX document
+ */
+int omap4_cm_wait_idlest_ready(u32 prcm_mod, u8 prcm_dev_offs)
+{
+	int i = 0;
+	u8 cm_id;
+	u16 prcm_mod_offs;
+	u32 mask = OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK;
+
+	cm_id = prcm_mod >> OMAP4_PRCM_MOD_CM_ID_SHIFT;
+	prcm_mod_offs = prcm_mod & OMAP4_PRCM_MOD_OFFS_MASK;
+
+	while (((omap4_cm_read_mod_reg(cm_id, prcm_mod_offs, prcm_dev_offs,
+				       OMAP4_CM_CLKCTRL_DREG) & mask) != 0) &&
+	       (i++ < MAX_MODULE_READY_TIME))
+		udelay(1);
+
+	return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
+}
+
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 894cc355818..a2e915639b7 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -513,6 +513,47 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
 			omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
 		}
 	}
+
+	if (cpu_is_omap3430()) {
+		if (controller_nr == 0) {
+			omap_cfg_reg(N28_3430_MMC1_CLK);
+			omap_cfg_reg(M27_3430_MMC1_CMD);
+			omap_cfg_reg(N27_3430_MMC1_DAT0);
+			if (mmc_controller->slots[0].wires == 4 ||
+				mmc_controller->slots[0].wires == 8) {
+				omap_cfg_reg(N26_3430_MMC1_DAT1);
+				omap_cfg_reg(N25_3430_MMC1_DAT2);
+				omap_cfg_reg(P28_3430_MMC1_DAT3);
+			}
+			if (mmc_controller->slots[0].wires == 8) {
+				omap_cfg_reg(P27_3430_MMC1_DAT4);
+				omap_cfg_reg(P26_3430_MMC1_DAT5);
+				omap_cfg_reg(R27_3430_MMC1_DAT6);
+				omap_cfg_reg(R25_3430_MMC1_DAT7);
+			}
+		}
+		if (controller_nr == 1) {
+			/* MMC2 */
+			omap_cfg_reg(AE2_3430_MMC2_CLK);
+			omap_cfg_reg(AG5_3430_MMC2_CMD);
+			omap_cfg_reg(AH5_3430_MMC2_DAT0);
+
+			/*
+			 * For 8 wire configurations, Lines DAT4, 5, 6 and 7 need to be muxed
+			 * in the board-*.c files
+			 */
+			if (mmc_controller->slots[0].wires == 4 ||
+				mmc_controller->slots[0].wires == 8) {
+				omap_cfg_reg(AH4_3430_MMC2_DAT1);
+				omap_cfg_reg(AG4_3430_MMC2_DAT2);
+				omap_cfg_reg(AF4_3430_MMC2_DAT3);
+			}
+		}
+
+		/*
+		 * For MMC3 the pins need to be muxed in the board-*.c files
+		 */
+	}
 }
 
 void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index e9b9bcb19b4..7574b6f20e8 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -32,17 +32,23 @@
 #include <mach/sram.h>
 #include <mach/sdrc.h>
 #include <mach/gpmc.h>
+#include <mach/serial.h>
 
 #ifndef CONFIG_ARCH_OMAP4	/* FIXME: Remove this once clkdev is ready */
 #include "clock.h"
 
+#include <mach/omap-pm.h>
 #include <mach/powerdomain.h>
-
 #include "powerdomains.h"
 
 #include <mach/clockdomain.h>
 #include "clockdomains.h"
 #endif
+#include <mach/omap_hwmod.h>
+#include "omap_hwmod_2420.h"
+#include "omap_hwmod_2430.h"
+#include "omap_hwmod_34xx.h"
+
 /*
  * The machine specific code may provide the extra mapping besides the
  * default mapping provided here.
@@ -279,11 +285,26 @@ static int __init _omap2_init_reprogram_sdrc(void)
 void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
 				 struct omap_sdrc_params *sdrc_cs1)
 {
+	struct omap_hwmod **hwmods = NULL;
+
+	if (cpu_is_omap2420())
+		hwmods = omap2420_hwmods;
+	else if (cpu_is_omap2430())
+		hwmods = omap2430_hwmods;
+	else if (cpu_is_omap34xx())
+		hwmods = omap34xx_hwmods;
+
+	omap_hwmod_init(hwmods);
 	omap2_mux_init();
 #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */
+	/* The OPP tables have to be registered before a clk init */
+	omap_pm_if_early_init(mpu_opps, dsp_opps, l3_opps);
 	pwrdm_init(powerdomains_omap);
 	clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
 	omap2_clk_init();
+	omap_serial_early_init();
+	omap_hwmod_late_init();
+	omap_pm_if_init();
 	omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
 	_omap2_init_reprogram_sdrc();
 #endif
diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c
index 015f22a53ea..2d9b5cc981c 100644
--- a/arch/arm/mach-omap2/iommu2.c
+++ b/arch/arm/mach-omap2/iommu2.c
@@ -217,10 +217,19 @@ static ssize_t omap2_dump_cr(struct iommu *obj, struct cr_regs *cr, char *buf)
 }
 
 #define pr_reg(name)							\
-	p += sprintf(p, "%20s: %08x\n",					\
-		     __stringify(name), iommu_read_reg(obj, MMU_##name));
-
-static ssize_t omap2_iommu_dump_ctx(struct iommu *obj, char *buf)
+	do {								\
+		ssize_t bytes;						\
+		const char *str = "%20s: %08x\n";			\
+		const int maxcol = 32;					\
+		bytes = snprintf(p, maxcol, str, __stringify(name),	\
+				 iommu_read_reg(obj, MMU_##name));	\
+		p += bytes;						\
+		len -= bytes;						\
+		if (len < maxcol)					\
+			goto out;					\
+	} while (0)
+
+static ssize_t omap2_iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t len)
 {
 	char *p = buf;
 
@@ -242,7 +251,7 @@ static ssize_t omap2_iommu_dump_ctx(struct iommu *obj, char *buf)
 	pr_reg(READ_CAM);
 	pr_reg(READ_RAM);
 	pr_reg(EMU_FAULT_AD);
-
+out:
 	return p - buf;
 }
 
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index 99b6e154631..a846aa1ebb4 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -128,6 +128,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
 		.rx_irq		= INT_24XX_MCBSP1_IRQ_RX,
 		.tx_irq		= INT_24XX_MCBSP1_IRQ_TX,
 		.ops		= &omap2_mcbsp_ops,
+		.buffer_size	= 0x6F,
 	},
 	{
 		.phys_base	= OMAP34XX_MCBSP2_BASE,
@@ -136,6 +137,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
 		.rx_irq		= INT_24XX_MCBSP2_IRQ_RX,
 		.tx_irq		= INT_24XX_MCBSP2_IRQ_TX,
 		.ops		= &omap2_mcbsp_ops,
+		.buffer_size	= 0x3FF,
 	},
 	{
 		.phys_base	= OMAP34XX_MCBSP3_BASE,
@@ -144,6 +146,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
 		.rx_irq		= INT_24XX_MCBSP3_IRQ_RX,
 		.tx_irq		= INT_24XX_MCBSP3_IRQ_TX,
 		.ops		= &omap2_mcbsp_ops,
+		.buffer_size	= 0x6F,
 	},
 	{
 		.phys_base	= OMAP34XX_MCBSP4_BASE,
@@ -152,6 +155,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
 		.rx_irq		= INT_24XX_MCBSP4_IRQ_RX,
 		.tx_irq		= INT_24XX_MCBSP4_IRQ_TX,
 		.ops		= &omap2_mcbsp_ops,
+		.buffer_size	= 0x6F,
 	},
 	{
 		.phys_base	= OMAP34XX_MCBSP5_BASE,
@@ -160,6 +164,7 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
 		.rx_irq		= INT_24XX_MCBSP5_IRQ_RX,
 		.tx_irq		= INT_24XX_MCBSP5_IRQ_TX,
 		.ops		= &omap2_mcbsp_ops,
+		.buffer_size	= 0x6F,
 	},
 };
 #define OMAP34XX_MCBSP_PDATA_SZ		ARRAY_SIZE(omap34xx_mcbsp_pdata)
@@ -168,6 +173,42 @@ static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
 #define OMAP34XX_MCBSP_PDATA_SZ		0
 #endif
 
+static struct omap_mcbsp_platform_data omap44xx_mcbsp_pdata[] = {
+	{
+		.phys_base      = OMAP44XX_MCBSP1_BASE,
+		.dma_rx_sync    = OMAP44XX_DMA_MCBSP1_RX,
+		.dma_tx_sync    = OMAP44XX_DMA_MCBSP1_TX,
+		.rx_irq         = INT_24XX_MCBSP1_IRQ_RX,
+		.tx_irq         = INT_24XX_MCBSP1_IRQ_TX,
+		.ops            = &omap2_mcbsp_ops,
+	},
+	{
+		.phys_base      = OMAP44XX_MCBSP2_BASE,
+		.dma_rx_sync    = OMAP44XX_DMA_MCBSP2_RX,
+		.dma_tx_sync    = OMAP44XX_DMA_MCBSP2_TX,
+		.rx_irq         = INT_24XX_MCBSP2_IRQ_RX,
+		.tx_irq         = INT_24XX_MCBSP2_IRQ_TX,
+		.ops            = &omap2_mcbsp_ops,
+	},
+	{
+		.phys_base      = OMAP44XX_MCBSP3_BASE,
+		.dma_rx_sync    = OMAP44XX_DMA_MCBSP3_RX,
+		.dma_tx_sync    = OMAP44XX_DMA_MCBSP3_TX,
+		.rx_irq         = INT_24XX_MCBSP3_IRQ_RX,
+		.tx_irq         = INT_24XX_MCBSP3_IRQ_TX,
+		.ops            = &omap2_mcbsp_ops,
+	},
+	{
+		.phys_base      = OMAP44XX_MCBSP4_BASE,
+		.dma_rx_sync    = OMAP44XX_DMA_MCBSP4_RX,
+		.dma_tx_sync    = OMAP44XX_DMA_MCBSP4_TX,
+		.rx_irq         = INT_24XX_MCBSP4_IRQ_RX,
+		.tx_irq         = INT_24XX_MCBSP4_IRQ_TX,
+		.ops            = &omap2_mcbsp_ops,
+	},
+};
+#define OMAP44XX_MCBSP_PDATA_SZ		ARRAY_SIZE(omap44xx_mcbsp_pdata)
+
 static int __init omap2_mcbsp_init(void)
 {
 	if (cpu_is_omap2420())
@@ -176,6 +217,8 @@ static int __init omap2_mcbsp_init(void)
 		omap_mcbsp_count = OMAP2430_MCBSP_PDATA_SZ;
 	if (cpu_is_omap34xx())
 		omap_mcbsp_count = OMAP34XX_MCBSP_PDATA_SZ;
+	if (cpu_is_omap44xx())
+		omap_mcbsp_count = OMAP44XX_MCBSP_PDATA_SZ;
 
 	mcbsp_ptr = kzalloc(omap_mcbsp_count * sizeof(struct omap_mcbsp *),
 								GFP_KERNEL);
@@ -191,6 +234,9 @@ static int __init omap2_mcbsp_init(void)
 	if (cpu_is_omap34xx())
 		omap_mcbsp_register_board_cfg(omap34xx_mcbsp_pdata,
 						OMAP34XX_MCBSP_PDATA_SZ);
+	if (cpu_is_omap44xx())
+		omap_mcbsp_register_board_cfg(omap44xx_mcbsp_pdata,
+						OMAP44XX_MCBSP_PDATA_SZ);
 
 	return omap_mcbsp_init();
 }
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 43d6b92b65f..2daa595aaff 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -492,6 +492,61 @@ MUX_CFG_34XX("H16_34XX_SDRC_CKE0", 0x262,
 		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT)
 MUX_CFG_34XX("H17_34XX_SDRC_CKE1", 0x264,
 		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_OUTPUT)
+
+/* MMC1 */
+MUX_CFG_34XX("N28_3430_MMC1_CLK", 0x144,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("M27_3430_MMC1_CMD", 0x146,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("N27_3430_MMC1_DAT0", 0x148,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("N26_3430_MMC1_DAT1", 0x14a,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("N25_3430_MMC1_DAT2", 0x14c,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("P28_3430_MMC1_DAT3", 0x14e,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("P27_3430_MMC1_DAT4", 0x150,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("P26_3430_MMC1_DAT5", 0x152,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("R27_3430_MMC1_DAT6", 0x154,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("R25_3430_MMC1_DAT7", 0x156,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+
+/* MMC2 */
+MUX_CFG_34XX("AE2_3430_MMC2_CLK", 0x158,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AG5_3430_MMC2_CMD", 0x15A,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AH5_3430_MMC2_DAT0", 0x15c,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AH4_3430_MMC2_DAT1", 0x15e,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AG4_3430_MMC2_DAT2", 0x160,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AF4_3430_MMC2_DAT3", 0x162,
+		OMAP34XX_MUX_MODE0 | OMAP34XX_PIN_INPUT_PULLUP)
+
+/* MMC3 */
+MUX_CFG_34XX("AF10_3430_MMC3_CLK", 0x5d8,
+		OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AC3_3430_MMC3_CMD", 0x1d0,
+		OMAP34XX_MUX_MODE3 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AE11_3430_MMC3_DAT0", 0x5e4,
+		OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AH9_3430_MMC3_DAT1", 0x5e6,
+		OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AF13_3430_MMC3_DAT2", 0x5e8,
+		OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
+MUX_CFG_34XX("AF13_3430_MMC3_DAT3", 0x5e2,
+		OMAP34XX_MUX_MODE2 | OMAP34XX_PIN_INPUT_PULLUP)
+
+/* SYS_NIRQ T2 INT1 */
+MUX_CFG_34XX("AF26_34XX_SYS_NIRQ", 0x1E0,
+		OMAP3_WAKEUP_EN | OMAP34XX_PIN_INPUT_PULLUP |
+		OMAP34XX_MUX_MODE0)
 };
 
 #define OMAP34XX_PINS_SZ	ARRAY_SIZE(omap34xx_pins)
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 8fe8d230f21..48ee295db27 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -54,7 +54,7 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
 	 * for us: do so
 	 */
 
-	gic_cpu_init(0, IO_ADDRESS(OMAP44XX_GIC_CPU_BASE));
+	gic_cpu_init(0, OMAP2_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE));
 
 	/*
 	 * Synchronise with the boot thread.
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
new file mode 100644
index 00000000000..d2e0f1c9596
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -0,0 +1,1554 @@
+/*
+ * omap_hwmod implementation for OMAP2/3/4
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ * With fixes and testing from Kevin Hilman
+ *
+ * Created in collaboration with (alphabetical order): Benoit Cousson,
+ * Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari
+ * Poussa, Anand Sawant, Santosh Shilimkar, Richard Woodruff
+ *
+ * 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 code manages "OMAP modules" (on-chip devices) and their
+ * integration with Linux device driver and bus code.
+ *
+ * References:
+ * - OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 (SWPU064)
+ * - OMAP2430 Multimedia Device POP Silicon Revision 2.1 (SWPU090)
+ * - OMAP34xx Multimedia Device Silicon Revision 3.1 (SWPU108)
+ * - OMAP4430 Multimedia Device Silicon Revision 1.0 (SWPU140)
+ * - Open Core Protocol Specification 2.2
+ *
+ * To do:
+ * - pin mux handling
+ * - handle IO mapping
+ * - bus throughput & module latency measurement code
+ *
+ * XXX add tests at the beginning of each function to ensure the hwmod is
+ * in the appropriate state
+ * XXX error return values should be checked to ensure that they are
+ * appropriate
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/bootmem.h>
+
+#include <mach/cpu.h>
+#include <mach/clockdomain.h>
+#include <mach/powerdomain.h>
+#include <mach/clock.h>
+#include <mach/omap_hwmod.h>
+
+#include "cm.h"
+
+/* Maximum microseconds to wait for OMAP module to reset */
+#define MAX_MODULE_RESET_WAIT		10000
+
+/* Name of the OMAP hwmod for the MPU */
+#define MPU_INITIATOR_NAME		"mpu_hwmod"
+
+/* omap_hwmod_list contains all registered struct omap_hwmods */
+static LIST_HEAD(omap_hwmod_list);
+
+static DEFINE_MUTEX(omap_hwmod_mutex);
+
+/* mpu_oh: used to add/remove MPU initiator from sleepdep list */
+static struct omap_hwmod *mpu_oh;
+
+/* inited: 0 if omap_hwmod_init() has not yet been called; 1 otherwise */
+static u8 inited;
+
+
+/* Private functions */
+
+/**
+ * _update_sysc_cache - return the module OCP_SYSCONFIG register, keep copy
+ * @oh: struct omap_hwmod *
+ *
+ * Load the current value of the hwmod OCP_SYSCONFIG register into the
+ * struct omap_hwmod for later use.  Returns -EINVAL if the hwmod has no
+ * OCP_SYSCONFIG register or 0 upon success.
+ */
+static int _update_sysc_cache(struct omap_hwmod *oh)
+{
+	if (!oh->sysconfig) {
+		WARN(!oh->sysconfig, "omap_hwmod: %s: cannot read "
+		     "OCP_SYSCONFIG: not defined on hwmod\n", oh->name);
+		return -EINVAL;
+	}
+
+	/* XXX ensure module interface clock is up */
+
+	oh->_sysc_cache = omap_hwmod_readl(oh, oh->sysconfig->sysc_offs);
+
+	oh->_int_flags |= _HWMOD_SYSCONFIG_LOADED;
+
+	return 0;
+}
+
+/**
+ * _write_sysconfig - write a value to the module's OCP_SYSCONFIG register
+ * @v: OCP_SYSCONFIG value to write
+ * @oh: struct omap_hwmod *
+ *
+ * Write @v into the module OCP_SYSCONFIG register, if it has one.  No
+ * return value.
+ */
+static void _write_sysconfig(u32 v, struct omap_hwmod *oh)
+{
+	if (!oh->sysconfig) {
+		WARN(!oh->sysconfig, "omap_hwmod: %s: cannot write "
+		     "OCP_SYSCONFIG: not defined on hwmod\n", oh->name);
+		return;
+	}
+
+	/* XXX ensure module interface clock is up */
+
+	if (oh->_sysc_cache != v) {
+		oh->_sysc_cache = v;
+		omap_hwmod_writel(v, oh, oh->sysconfig->sysc_offs);
+	}
+}
+
+/**
+ * _set_master_standbymode: set the OCP_SYSCONFIG MIDLEMODE field in @v
+ * @oh: struct omap_hwmod *
+ * @standbymode: MIDLEMODE field bits
+ * @v: pointer to register contents to modify
+ *
+ * Update the master standby mode bits in @v to be @standbymode for
+ * the @oh hwmod.  Does not write to the hardware.  Returns -EINVAL
+ * upon error or 0 upon success.
+ */
+static int _set_master_standbymode(struct omap_hwmod *oh, u8 standbymode,
+				   u32 *v)
+{
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE))
+		return -EINVAL;
+
+	*v &= ~SYSC_MIDLEMODE_MASK;
+	*v |= __ffs(standbymode) << SYSC_MIDLEMODE_SHIFT;
+
+	return 0;
+}
+
+/**
+ * _set_slave_idlemode: set the OCP_SYSCONFIG SIDLEMODE field in @v
+ * @oh: struct omap_hwmod *
+ * @idlemode: SIDLEMODE field bits
+ * @v: pointer to register contents to modify
+ *
+ * Update the slave idle mode bits in @v to be @idlemode for the @oh
+ * hwmod.  Does not write to the hardware.  Returns -EINVAL upon error
+ * or 0 upon success.
+ */
+static int _set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode, u32 *v)
+{
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE))
+		return -EINVAL;
+
+	*v &= ~SYSC_SIDLEMODE_MASK;
+	*v |= __ffs(idlemode) << SYSC_SIDLEMODE_SHIFT;
+
+	return 0;
+}
+
+/**
+ * _set_clockactivity: set OCP_SYSCONFIG.CLOCKACTIVITY bits in @v
+ * @oh: struct omap_hwmod *
+ * @clockact: CLOCKACTIVITY field bits
+ * @v: pointer to register contents to modify
+ *
+ * Update the clockactivity mode bits in @v to be @clockact for the
+ * @oh hwmod.  Used for additional powersaving on some modules.  Does
+ * not write to the hardware.  Returns -EINVAL upon error or 0 upon
+ * success.
+ */
+static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v)
+{
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
+		return -EINVAL;
+
+	*v &= ~SYSC_CLOCKACTIVITY_MASK;
+	*v |= clockact << SYSC_CLOCKACTIVITY_SHIFT;
+
+	return 0;
+}
+
+/**
+ * _set_softreset: set OCP_SYSCONFIG.CLOCKACTIVITY bits in @v
+ * @oh: struct omap_hwmod *
+ * @v: pointer to register contents to modify
+ *
+ * Set the SOFTRESET bit in @v for hwmod @oh.  Returns -EINVAL upon
+ * error or 0 upon success.
+ */
+static int _set_softreset(struct omap_hwmod *oh, u32 *v)
+{
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_SOFTRESET))
+		return -EINVAL;
+
+	*v |= SYSC_SOFTRESET_MASK;
+
+	return 0;
+}
+
+/**
+ * _enable_wakeup: set OCP_SYSCONFIG.ENAWAKEUP bit in the hardware
+ * @oh: struct omap_hwmod *
+ *
+ * Allow the hardware module @oh to send wakeups.  Returns -EINVAL
+ * upon error or 0 upon success.
+ */
+static int _enable_wakeup(struct omap_hwmod *oh)
+{
+	u32 v;
+
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+		return -EINVAL;
+
+	v = oh->_sysc_cache;
+	v |= SYSC_ENAWAKEUP_MASK;
+	_write_sysconfig(v, oh);
+
+	/* XXX test pwrdm_get_wken for this hwmod's subsystem */
+
+	oh->_int_flags |= _HWMOD_WAKEUP_ENABLED;
+
+	return 0;
+}
+
+/**
+ * _disable_wakeup: clear OCP_SYSCONFIG.ENAWAKEUP bit in the hardware
+ * @oh: struct omap_hwmod *
+ *
+ * Prevent the hardware module @oh to send wakeups.  Returns -EINVAL
+ * upon error or 0 upon success.
+ */
+static int _disable_wakeup(struct omap_hwmod *oh)
+{
+	u32 v;
+
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+		return -EINVAL;
+
+	v = oh->_sysc_cache;
+	v &= ~SYSC_ENAWAKEUP_MASK;
+	_write_sysconfig(v, oh);
+
+	/* XXX test pwrdm_get_wken for this hwmod's subsystem */
+
+	oh->_int_flags &= ~_HWMOD_WAKEUP_ENABLED;
+
+	return 0;
+}
+
+/**
+ * _add_initiator_dep: prevent @oh from smart-idling while @init_oh is active
+ * @oh: struct omap_hwmod *
+ *
+ * Prevent the hardware module @oh from entering idle while the
+ * hardare module initiator @init_oh is active.  Useful when a module
+ * will be accessed by a particular initiator (e.g., if a module will
+ * be accessed by the IVA, there should be a sleepdep between the IVA
+ * initiator and the module).  Only applies to modules in smart-idle
+ * mode.  Returns -EINVAL upon error or passes along
+ * pwrdm_add_sleepdep() value upon success.
+ */
+static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
+{
+	if (!oh->_clk)
+		return -EINVAL;
+
+	return pwrdm_add_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
+				  init_oh->_clk->clkdm->pwrdm.ptr);
+}
+
+/**
+ * _del_initiator_dep: allow @oh to smart-idle even if @init_oh is active
+ * @oh: struct omap_hwmod *
+ *
+ * Allow the hardware module @oh to enter idle while the hardare
+ * module initiator @init_oh is active.  Useful when a module will not
+ * be accessed by a particular initiator (e.g., if a module will not
+ * be accessed by the IVA, there should be no sleepdep between the IVA
+ * initiator and the module).  Only applies to modules in smart-idle
+ * mode.  Returns -EINVAL upon error or passes along
+ * pwrdm_add_sleepdep() value upon success.
+ */
+static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
+{
+	if (!oh->_clk)
+		return -EINVAL;
+
+	return pwrdm_del_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
+				  init_oh->_clk->clkdm->pwrdm.ptr);
+}
+
+/**
+ * _init_main_clk - get a struct clk * for the the hwmod's main functional clk
+ * @oh: struct omap_hwmod *
+ *
+ * Called from _init_clocks().  Populates the @oh _clk (main
+ * functional clock pointer) if a main_clk is present.  Returns 0 on
+ * success or -EINVAL on error.
+ */
+static int _init_main_clk(struct omap_hwmod *oh)
+{
+	struct clk *c;
+	int ret = 0;
+
+	if (!oh->clkdev_con_id)
+		return 0;
+
+	c = clk_get_sys(oh->clkdev_dev_id, oh->clkdev_con_id);
+	WARN(IS_ERR(c), "omap_hwmod: %s: cannot clk_get main_clk %s.%s\n",
+	     oh->name, oh->clkdev_dev_id, oh->clkdev_con_id);
+	if (IS_ERR(c))
+		ret = -EINVAL;
+	oh->_clk = c;
+
+	return ret;
+}
+
+/**
+ * _init_interface_clk - get a struct clk * for the the hwmod's interface clks
+ * @oh: struct omap_hwmod *
+ *
+ * Called from _init_clocks().  Populates the @oh OCP slave interface
+ * clock pointers.  Returns 0 on success or -EINVAL on error.
+ */
+static int _init_interface_clks(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_ocp_if *os;
+	struct clk *c;
+	int i;
+	int ret = 0;
+
+	if (oh->slaves_cnt == 0)
+		return 0;
+
+	for (i = 0, os = *oh->slaves; i < oh->slaves_cnt; i++, os++) {
+		if (!os->clkdev_con_id)
+			continue;
+
+		c = clk_get_sys(os->clkdev_dev_id, os->clkdev_con_id);
+		WARN(IS_ERR(c), "omap_hwmod: %s: cannot clk_get "
+		     "interface_clk %s.%s\n", oh->name,
+		     os->clkdev_dev_id, os->clkdev_con_id);
+		if (IS_ERR(c))
+			ret = -EINVAL;
+		os->_clk = c;
+	}
+
+	return ret;
+}
+
+/**
+ * _init_opt_clk - get a struct clk * for the the hwmod's optional clocks
+ * @oh: struct omap_hwmod *
+ *
+ * Called from _init_clocks().  Populates the @oh omap_hwmod_opt_clk
+ * clock pointers.  Returns 0 on success or -EINVAL on error.
+ */
+static int _init_opt_clks(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_opt_clk *oc;
+	struct clk *c;
+	int i;
+	int ret = 0;
+
+	for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) {
+		c = clk_get_sys(oc->clkdev_dev_id, oc->clkdev_con_id);
+		WARN(IS_ERR(c), "omap_hwmod: %s: cannot clk_get opt_clk "
+		     "%s.%s\n", oh->name, oc->clkdev_dev_id,
+		     oc->clkdev_con_id);
+		if (IS_ERR(c))
+			ret = -EINVAL;
+		oc->_clk = c;
+	}
+
+	return ret;
+}
+
+/**
+ * _enable_clocks - enable hwmod main clock and interface clocks
+ * @oh: struct omap_hwmod *
+ *
+ * Enables all clocks necessary for register reads and writes to succeed
+ * on the hwmod @oh.  Returns 0.
+ */
+static int _enable_clocks(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_ocp_if *os;
+	int i;
+
+	pr_debug("omap_hwmod: %s: enabling clocks\n", oh->name);
+
+	if (oh->_clk && !IS_ERR(oh->_clk))
+		clk_enable(oh->_clk);
+
+	if (oh->slaves_cnt > 0) {
+		for (i = 0, os = *oh->slaves; i < oh->slaves_cnt; i++, os++) {
+			struct clk *c = os->_clk;
+
+			if (c && !IS_ERR(c) && (os->flags & OCPIF_SWSUP_IDLE))
+				clk_enable(c);
+		}
+	}
+
+	/* The opt clocks are controlled by the device driver. */
+
+	return 0;
+}
+
+/**
+ * _disable_clocks - disable hwmod main clock and interface clocks
+ * @oh: struct omap_hwmod *
+ *
+ * Disables the hwmod @oh main functional and interface clocks.  Returns 0.
+ */
+static int _disable_clocks(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_ocp_if *os;
+	int i;
+
+	pr_debug("omap_hwmod: %s: disabling clocks\n", oh->name);
+
+	if (oh->_clk && !IS_ERR(oh->_clk))
+		clk_disable(oh->_clk);
+
+	if (oh->slaves_cnt > 0) {
+		for (i = 0, os = *oh->slaves; i < oh->slaves_cnt; i++, os++) {
+			struct clk *c = os->_clk;
+
+			if (c && !IS_ERR(c) && (os->flags & OCPIF_SWSUP_IDLE))
+				clk_disable(c);
+		}
+	}
+
+	/* The opt clocks are controlled by the device driver. */
+
+	return 0;
+}
+
+/**
+ * _find_mpu_port_index - find hwmod OCP slave port ID intended for MPU use
+ * @oh: struct omap_hwmod *
+ *
+ * Returns the array index of the OCP slave port that the MPU
+ * addresses the device on, or -EINVAL upon error or not found.
+ */
+static int _find_mpu_port_index(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_ocp_if *os;
+	int i;
+	int found = 0;
+
+	if (!oh || oh->slaves_cnt == 0)
+		return -EINVAL;
+
+	for (i = 0, os = *oh->slaves; i < oh->slaves_cnt; i++, os++) {
+		if (os->user & OCP_USER_MPU) {
+			found = 1;
+			break;
+		}
+	}
+
+	if (found)
+		pr_debug("omap_hwmod: %s: MPU OCP slave port ID  %d\n",
+			 oh->name, i);
+	else
+		pr_debug("omap_hwmod: %s: no MPU OCP slave port found\n",
+			 oh->name);
+
+	return (found) ? i : -EINVAL;
+}
+
+/**
+ * _find_mpu_rt_base - find hwmod register target base addr accessible by MPU
+ * @oh: struct omap_hwmod *
+ *
+ * Return the virtual address of the base of the register target of
+ * device @oh, or NULL on error.
+ */
+static void __iomem *_find_mpu_rt_base(struct omap_hwmod *oh, u8 index)
+{
+	struct omap_hwmod_ocp_if *os;
+	struct omap_hwmod_addr_space *mem;
+	int i;
+	int found = 0;
+
+	if (!oh || oh->slaves_cnt == 0)
+		return NULL;
+
+	os = *oh->slaves + index;
+
+	for (i = 0, mem = os->addr; i < os->addr_cnt; i++, mem++) {
+		if (mem->flags & ADDR_TYPE_RT) {
+			found = 1;
+			break;
+		}
+	}
+
+	/* XXX use ioremap() instead? */
+
+	if (found)
+		pr_debug("omap_hwmod: %s: MPU register target at va %p\n",
+			 oh->name, OMAP2_IO_ADDRESS(mem->pa_start));
+	else
+		pr_debug("omap_hwmod: %s: no MPU register target found\n",
+			 oh->name);
+
+	return (found) ? OMAP2_IO_ADDRESS(mem->pa_start) : NULL;
+}
+
+/**
+ * _sysc_enable - try to bring a module out of idle via OCP_SYSCONFIG
+ * @oh: struct omap_hwmod *
+ *
+ * If module is marked as SWSUP_SIDLE, force the module out of slave
+ * idle; otherwise, configure it for smart-idle.  If module is marked
+ * as SWSUP_MSUSPEND, force the module out of master standby;
+ * otherwise, configure it for smart-standby.  No return value.
+ */
+static void _sysc_enable(struct omap_hwmod *oh)
+{
+	u8 idlemode;
+	u32 v;
+
+	if (!oh->sysconfig)
+		return;
+
+	v = oh->_sysc_cache;
+
+	if (oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE) {
+		idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
+			HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
+		_set_slave_idlemode(oh, idlemode, &v);
+	}
+
+	if (oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE) {
+		idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ?
+			HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
+		_set_master_standbymode(oh, idlemode, &v);
+	}
+
+	/* XXX OCP AUTOIDLE bit? */
+
+	if (oh->flags & HWMOD_SET_DEFAULT_CLOCKACT &&
+	    oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY)
+		_set_clockactivity(oh, oh->sysconfig->clockact, &v);
+
+	_write_sysconfig(v, oh);
+}
+
+/**
+ * _sysc_idle - try to put a module into idle via OCP_SYSCONFIG
+ * @oh: struct omap_hwmod *
+ *
+ * If module is marked as SWSUP_SIDLE, force the module into slave
+ * idle; otherwise, configure it for smart-idle.  If module is marked
+ * as SWSUP_MSUSPEND, force the module into master standby; otherwise,
+ * configure it for smart-standby.  No return value.
+ */
+static void _sysc_idle(struct omap_hwmod *oh)
+{
+	u8 idlemode;
+	u32 v;
+
+	if (!oh->sysconfig)
+		return;
+
+	v = oh->_sysc_cache;
+
+	if (oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE) {
+		idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
+			HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
+		_set_slave_idlemode(oh, idlemode, &v);
+	}
+
+	if (oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE) {
+		idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ?
+			HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
+		_set_master_standbymode(oh, idlemode, &v);
+	}
+
+	_write_sysconfig(v, oh);
+}
+
+/**
+ * _sysc_shutdown - force a module into idle via OCP_SYSCONFIG
+ * @oh: struct omap_hwmod *
+ *
+ * Force the module into slave idle and master suspend. No return
+ * value.
+ */
+static void _sysc_shutdown(struct omap_hwmod *oh)
+{
+	u32 v;
+
+	if (!oh->sysconfig)
+		return;
+
+	v = oh->_sysc_cache;
+
+	if (oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE)
+		_set_slave_idlemode(oh, HWMOD_IDLEMODE_FORCE, &v);
+
+	if (oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE)
+		_set_master_standbymode(oh, HWMOD_IDLEMODE_FORCE, &v);
+
+	/* XXX clear OCP AUTOIDLE bit? */
+
+	_write_sysconfig(v, oh);
+}
+
+/**
+ * _lookup - find an omap_hwmod by name
+ * @name: find an omap_hwmod by name
+ *
+ * Return a pointer to an omap_hwmod by name, or NULL if not found.
+ * Caller must hold omap_hwmod_mutex.
+ */
+static struct omap_hwmod *_lookup(const char *name)
+{
+	struct omap_hwmod *oh, *temp_oh;
+
+	oh = NULL;
+
+	list_for_each_entry(temp_oh, &omap_hwmod_list, node) {
+		if (!strcmp(name, temp_oh->name)) {
+			oh = temp_oh;
+			break;
+		}
+	}
+
+	return oh;
+}
+
+/**
+ * _init_clocks - clk_get() all clocks associated with this hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Called by omap_hwmod_late_init() (after omap2_clk_init()).
+ * Resolves all clock names embedded in the hwmod.  Must be called
+ * with omap_hwmod_mutex held.  Returns -EINVAL if the omap_hwmod
+ * has not yet been registered or if the clocks have already been
+ * initialized, 0 on success, or a non-zero error on failure.
+ */
+static int _init_clocks(struct omap_hwmod *oh)
+{
+	int ret = 0;
+
+	if (!oh || (oh->_state != _HWMOD_STATE_REGISTERED))
+		return -EINVAL;
+
+	pr_debug("omap_hwmod: %s: looking up clocks\n", oh->name);
+
+	ret |= _init_main_clk(oh);
+	ret |= _init_interface_clks(oh);
+	ret |= _init_opt_clks(oh);
+
+	oh->_state = _HWMOD_STATE_CLKS_INITED;
+
+	return ret;
+}
+
+/**
+ * _wait_target_ready - wait for a module to leave slave idle
+ * @oh: struct omap_hwmod *
+ *
+ * Wait for a module @oh to leave slave idle.  Returns 0 if the module
+ * does not have an IDLEST bit or if the module successfully leaves
+ * slave idle; otherwise, pass along the return value of the
+ * appropriate *_cm_wait_module_ready() function.
+ */
+static int _wait_target_ready(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_ocp_if *os;
+	int ret;
+
+	if (!oh)
+		return -EINVAL;
+
+	if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
+		return 0;
+
+	os = *oh->slaves + oh->_mpu_port_index;
+
+	if (!(os->flags & OCPIF_HAS_IDLEST))
+		return 0;
+
+	/* XXX check module SIDLEMODE */
+
+	/* XXX check clock enable states */
+
+	if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
+		ret = omap2_cm_wait_module_ready(oh->prcm.omap2.module_offs,
+						 oh->prcm.omap2.idlest_reg_id,
+						 oh->prcm.omap2.idlest_idle_bit);
+#if 0
+	} else if (cpu_is_omap44xx()) {
+		ret = omap4_cm_wait_module_ready(oh->prcm.omap4.module_offs,
+						 oh->prcm.omap4.device_offs);
+#endif
+	} else {
+		BUG();
+	};
+
+	return ret;
+}
+
+/**
+ * _reset - reset an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Resets an omap_hwmod @oh via the OCP_SYSCONFIG bit.  hwmod must be
+ * enabled for this to work.  Must be called with omap_hwmod_mutex
+ * held.  Returns -EINVAL if the hwmod cannot be reset this way or if
+ * the hwmod is in the wrong state, -ETIMEDOUT if the module did not
+ * reset in time, or 0 upon success.
+ */
+static int _reset(struct omap_hwmod *oh)
+{
+	u32 r, v;
+	int c;
+
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_SOFTRESET) ||
+	    (oh->sysconfig->sysc_flags & SYSS_MISSING))
+		return -EINVAL;
+
+	/* clocks must be on for this operation */
+	if (oh->_state != _HWMOD_STATE_ENABLED) {
+		WARN(1, "omap_hwmod: %s: reset can only be entered from "
+		     "enabled state\n", oh->name);
+		return -EINVAL;
+	}
+
+	pr_debug("omap_hwmod: %s: resetting\n", oh->name);
+
+	v = oh->_sysc_cache;
+	r = _set_softreset(oh, &v);
+	if (r)
+		return r;
+	_write_sysconfig(v, oh);
+
+	c = 0;
+	while (c < MAX_MODULE_RESET_WAIT &&
+	       !(omap_hwmod_readl(oh, oh->sysconfig->syss_offs) &
+		 SYSS_RESETDONE_MASK)) {
+		udelay(1);
+		c++;
+	}
+
+	if (c == MAX_MODULE_RESET_WAIT)
+		WARN(1, "omap_hwmod: %s: failed to reset in %d usec\n",
+		     oh->name, MAX_MODULE_RESET_WAIT);
+	else
+		pr_debug("omap_hwmod: %s: reset in %d usec\n", oh->name, c);
+
+	/*
+	 * XXX add _HWMOD_STATE_WEDGED for modules that don't come back from
+	 * _wait_target_ready() or _reset()
+	 */
+
+	return (c == MAX_MODULE_RESET_WAIT) ? -ETIMEDOUT : 0;
+}
+
+/**
+ * _enable - enable an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Enables an omap_hwmod @oh such that the MPU can access the hwmod's
+ * register target.  Must be called with omap_hwmod_mutex held.
+ * Returns -EINVAL if the hwmod is in the wrong state or passes along
+ * the return value of _wait_target_ready().
+ */
+static int _enable(struct omap_hwmod *oh)
+{
+	int r;
+
+	if (oh->_state != _HWMOD_STATE_INITIALIZED &&
+	    oh->_state != _HWMOD_STATE_IDLE &&
+	    oh->_state != _HWMOD_STATE_DISABLED) {
+		WARN(1, "omap_hwmod: %s: enabled state can only be entered "
+		     "from initialized, idle, or disabled state\n", oh->name);
+		return -EINVAL;
+	}
+
+	pr_debug("omap_hwmod: %s: enabling\n", oh->name);
+
+	/* XXX mux balls */
+
+	_add_initiator_dep(oh, mpu_oh);
+	_enable_clocks(oh);
+
+	if (oh->sysconfig) {
+		if (!(oh->_int_flags & _HWMOD_SYSCONFIG_LOADED))
+			_update_sysc_cache(oh);
+		_sysc_enable(oh);
+	}
+
+	r = _wait_target_ready(oh);
+	if (!r)
+		oh->_state = _HWMOD_STATE_ENABLED;
+
+	return r;
+}
+
+/**
+ * _idle - idle an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Idles an omap_hwmod @oh.  This should be called once the hwmod has
+ * no further work.  Returns -EINVAL if the hwmod is in the wrong
+ * state or returns 0.
+ */
+static int _idle(struct omap_hwmod *oh)
+{
+	if (oh->_state != _HWMOD_STATE_ENABLED) {
+		WARN(1, "omap_hwmod: %s: idle state can only be entered from "
+		     "enabled state\n", oh->name);
+		return -EINVAL;
+	}
+
+	pr_debug("omap_hwmod: %s: idling\n", oh->name);
+
+	if (oh->sysconfig)
+		_sysc_idle(oh);
+	_del_initiator_dep(oh, mpu_oh);
+	_disable_clocks(oh);
+
+	oh->_state = _HWMOD_STATE_IDLE;
+
+	return 0;
+}
+
+/**
+ * _shutdown - shutdown an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Shut down an omap_hwmod @oh.  This should be called when the driver
+ * used for the hwmod is removed or unloaded or if the driver is not
+ * used by the system.  Returns -EINVAL if the hwmod is in the wrong
+ * state or returns 0.
+ */
+static int _shutdown(struct omap_hwmod *oh)
+{
+	if (oh->_state != _HWMOD_STATE_IDLE &&
+	    oh->_state != _HWMOD_STATE_ENABLED) {
+		WARN(1, "omap_hwmod: %s: disabled state can only be entered "
+		     "from idle, or enabled state\n", oh->name);
+		return -EINVAL;
+	}
+
+	pr_debug("omap_hwmod: %s: disabling\n", oh->name);
+
+	if (oh->sysconfig)
+		_sysc_shutdown(oh);
+	_del_initiator_dep(oh, mpu_oh);
+	/* XXX what about the other system initiators here? DMA, tesla, d2d */
+	_disable_clocks(oh);
+	/* XXX Should this code also force-disable the optional clocks? */
+
+	/* XXX mux any associated balls to safe mode */
+
+	oh->_state = _HWMOD_STATE_DISABLED;
+
+	return 0;
+}
+
+/**
+ * _write_clockact_lock - set the module's clockactivity bits
+ * @oh: struct omap_hwmod *
+ * @clockact: CLOCKACTIVITY field bits
+ *
+ * Writes the CLOCKACTIVITY bits @clockact to the hwmod @oh
+ * OCP_SYSCONFIG register.  Returns -EINVAL if the hwmod is in the
+ * wrong state or returns 0.
+ */
+static int _write_clockact_lock(struct omap_hwmod *oh, u8 clockact)
+{
+	u32 v;
+
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	v = oh->_sysc_cache;
+	_set_clockactivity(oh, clockact, &v);
+	_write_sysconfig(v, oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
+
+
+/**
+ * _setup - do initial configuration of omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Writes the CLOCKACTIVITY bits @clockact to the hwmod @oh
+ * OCP_SYSCONFIG register.  Must be called with omap_hwmod_mutex
+ * held.  Returns -EINVAL if the hwmod is in the wrong state or returns
+ * 0.
+ */
+static int _setup(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_ocp_if *os;
+	int i;
+
+	if (!oh)
+		return -EINVAL;
+
+	/* Set iclk autoidle mode */
+	if (oh->slaves_cnt > 0) {
+		for (i = 0, os = *oh->slaves; i < oh->slaves_cnt; i++, os++) {
+			struct clk *c = os->_clk;
+
+			if (!c || IS_ERR(c))
+				continue;
+
+			if (os->flags & OCPIF_SWSUP_IDLE) {
+				/* XXX omap_iclk_deny_idle(c); */
+			} else {
+				/* XXX omap_iclk_allow_idle(c); */
+				clk_enable(c);
+			}
+		}
+	}
+
+	oh->_state = _HWMOD_STATE_INITIALIZED;
+
+	_enable(oh);
+
+	if (!(oh->flags & HWMOD_INIT_NO_RESET))
+		_reset(oh);
+
+	/* XXX OCP AUTOIDLE bit? */
+	/* XXX OCP ENAWAKEUP bit? */
+
+	if (!(oh->flags & HWMOD_INIT_NO_IDLE))
+		_idle(oh);
+
+	return 0;
+}
+
+
+
+/* Public functions */
+
+u32 omap_hwmod_readl(struct omap_hwmod *oh, u16 reg_offs)
+{
+	return __raw_readl(oh->_rt_va + reg_offs);
+}
+
+void omap_hwmod_writel(u32 v, struct omap_hwmod *oh, u16 reg_offs)
+{
+	__raw_writel(v, oh->_rt_va + reg_offs);
+}
+
+/**
+ * omap_hwmod_register - register a struct omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Registers the omap_hwmod @oh.  Returns -EEXIST if an omap_hwmod already
+ * has been registered by the same name; -EINVAL if the omap_hwmod is in the
+ * wrong state, or 0 on success.
+ *
+ * XXX The data should be copied into bootmem, so the original data
+ * should be marked __initdata and freed after init.  This would allow
+ * unneeded omap_hwmods to be freed on multi-OMAP configurations.  Note
+ * that the copy process would be relatively complex due to the large number
+ * of substructures.
+ */
+int omap_hwmod_register(struct omap_hwmod *oh)
+{
+	int ret, ms_id;
+
+	if (!oh || (oh->_state != _HWMOD_STATE_UNKNOWN))
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+
+	pr_debug("omap_hwmod: %s: registering\n", oh->name);
+
+	if (_lookup(oh->name)) {
+		ret = -EEXIST;
+		goto ohr_unlock;
+	}
+
+	ms_id = _find_mpu_port_index(oh);
+	if (!IS_ERR_VALUE(ms_id)) {
+		oh->_mpu_port_index = ms_id;
+		oh->_rt_va = _find_mpu_rt_base(oh, oh->_mpu_port_index);
+	} else {
+		oh->_int_flags |= _HWMOD_NO_MPU_PORT;
+	}
+
+	list_add_tail(&oh->node, &omap_hwmod_list);
+
+	oh->_state = _HWMOD_STATE_REGISTERED;
+
+	ret = 0;
+
+ohr_unlock:
+	mutex_unlock(&omap_hwmod_mutex);
+	return ret;
+}
+
+/**
+ * omap_hwmod_lookup - look up a registered omap_hwmod by name
+ * @name: name of the omap_hwmod to look up
+ *
+ * Given a @name of an omap_hwmod, return a pointer to the registered
+ * struct omap_hwmod *, or NULL upon error.
+ */
+struct omap_hwmod *omap_hwmod_lookup(const char *name)
+{
+	struct omap_hwmod *oh;
+
+	if (!name)
+		return NULL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	oh = _lookup(name);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return oh;
+}
+
+/**
+ * omap_hwmod_for_each - call function for each registered omap_hwmod
+ * @fn: pointer to a callback function
+ *
+ * Call @fn for each registered omap_hwmod, passing @data to each
+ * function.  @fn must return 0 for success or any other value for
+ * failure.  If @fn returns non-zero, the iteration across omap_hwmods
+ * will stop and the non-zero return value will be passed to the
+ * caller of omap_hwmod_for_each().  @fn is called with
+ * omap_hwmod_for_each() held.
+ */
+int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh))
+{
+	struct omap_hwmod *temp_oh;
+	int ret;
+
+	if (!fn)
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	list_for_each_entry(temp_oh, &omap_hwmod_list, node) {
+		ret = (*fn)(temp_oh);
+		if (ret)
+			break;
+	}
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return ret;
+}
+
+
+/**
+ * omap_hwmod_init - init omap_hwmod code and register hwmods
+ * @ohs: pointer to an array of omap_hwmods to register
+ *
+ * Intended to be called early in boot before the clock framework is
+ * initialized.  If @ohs is not null, will register all omap_hwmods
+ * listed in @ohs that are valid for this chip.  Returns -EINVAL if
+ * omap_hwmod_init() has already been called or 0 otherwise.
+ */
+int omap_hwmod_init(struct omap_hwmod **ohs)
+{
+	struct omap_hwmod *oh;
+	int r;
+
+	if (inited)
+		return -EINVAL;
+
+	inited = 1;
+
+	if (!ohs)
+		return 0;
+
+	oh = *ohs;
+	while (oh) {
+		if (omap_chip_is(oh->omap_chip)) {
+			r = omap_hwmod_register(oh);
+			WARN(r, "omap_hwmod: %s: omap_hwmod_register returned "
+			     "%d\n", oh->name, r);
+		}
+		oh = *++ohs;
+	}
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_late_init - do some post-clock framework initialization
+ *
+ * Must be called after omap2_clk_init().  Resolves the struct clk names
+ * to struct clk pointers for each registered omap_hwmod.  Also calls
+ * _setup() on each hwmod.  Returns 0.
+ */
+int omap_hwmod_late_init(void)
+{
+	int r;
+
+	/* XXX check return value */
+	r = omap_hwmod_for_each(_init_clocks);
+	WARN(r, "omap_hwmod: omap_hwmod_late_init(): _init_clocks failed\n");
+
+	mpu_oh = omap_hwmod_lookup(MPU_INITIATOR_NAME);
+	WARN(!mpu_oh, "omap_hwmod: could not find MPU initiator hwmod %s\n",
+	     MPU_INITIATOR_NAME);
+
+	omap_hwmod_for_each(_setup);
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_unregister - unregister an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Unregisters a previously-registered omap_hwmod @oh.  There's probably
+ * no use case for this, so it is likely to be removed in a later version.
+ *
+ * XXX Free all of the bootmem-allocated structures here when that is
+ * implemented.  Make it clear that core code is the only code that is
+ * expected to unregister modules.
+ */
+int omap_hwmod_unregister(struct omap_hwmod *oh)
+{
+	if (!oh)
+		return -EINVAL;
+
+	pr_debug("omap_hwmod: %s: unregistering\n", oh->name);
+
+	mutex_lock(&omap_hwmod_mutex);
+	list_del(&oh->node);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_enable - enable an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Enable an omap_hwomd @oh.  Intended to be called by omap_device_enable().
+ * Returns -EINVAL on error or passes along the return value from _enable().
+ */
+int omap_hwmod_enable(struct omap_hwmod *oh)
+{
+	int r;
+
+	if (!oh)
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	r = _enable(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return r;
+}
+
+/**
+ * omap_hwmod_idle - idle an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Idle an omap_hwomd @oh.  Intended to be called by omap_device_idle().
+ * Returns -EINVAL on error or passes along the return value from _idle().
+ */
+int omap_hwmod_idle(struct omap_hwmod *oh)
+{
+	if (!oh)
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	_idle(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_shutdown - shutdown an omap_hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Shutdown an omap_hwomd @oh.  Intended to be called by
+ * omap_device_shutdown().  Returns -EINVAL on error or passes along
+ * the return value from _shutdown().
+ */
+int omap_hwmod_shutdown(struct omap_hwmod *oh)
+{
+	if (!oh)
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	_shutdown(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_enable_clocks - enable main_clk, all interface clocks
+ * @oh: struct omap_hwmod *oh
+ *
+ * Intended to be called by the omap_device code.
+ */
+int omap_hwmod_enable_clocks(struct omap_hwmod *oh)
+{
+	mutex_lock(&omap_hwmod_mutex);
+	_enable_clocks(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_disable_clocks - disable main_clk, all interface clocks
+ * @oh: struct omap_hwmod *oh
+ *
+ * Intended to be called by the omap_device code.
+ */
+int omap_hwmod_disable_clocks(struct omap_hwmod *oh)
+{
+	mutex_lock(&omap_hwmod_mutex);
+	_disable_clocks(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_ocp_barrier - wait for posted writes against the hwmod to complete
+ * @oh: struct omap_hwmod *oh
+ *
+ * Intended to be called by drivers and core code when all posted
+ * writes to a device must complete before continuing further
+ * execution (for example, after clearing some device IRQSTATUS
+ * register bits)
+ *
+ * XXX what about targets with multiple OCP threads?
+ */
+void omap_hwmod_ocp_barrier(struct omap_hwmod *oh)
+{
+	BUG_ON(!oh);
+
+	if (!oh->sysconfig || !oh->sysconfig->sysc_flags) {
+		WARN(1, "omap_device: %s: OCP barrier impossible due to "
+		      "device configuration\n", oh->name);
+		return;
+	}
+
+	/*
+	 * Forces posted writes to complete on the OCP thread handling
+	 * register writes
+	 */
+	omap_hwmod_readl(oh, oh->sysconfig->sysc_offs);
+}
+
+/**
+ * omap_hwmod_reset - reset the hwmod
+ * @oh: struct omap_hwmod *
+ *
+ * Under some conditions, a driver may wish to reset the entire device.
+ * Called from omap_device code.  Returns -EINVAL on error or passes along
+ * the return value from _reset()/_enable().
+ */
+int omap_hwmod_reset(struct omap_hwmod *oh)
+{
+	int r;
+
+	if (!oh || !(oh->_state & _HWMOD_STATE_ENABLED))
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	r = _reset(oh);
+	if (!r)
+		r = _enable(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return r;
+}
+
+/**
+ * omap_hwmod_count_resources - count number of struct resources needed by hwmod
+ * @oh: struct omap_hwmod *
+ * @res: pointer to the first element of an array of struct resource to fill
+ *
+ * Count the number of struct resource array elements necessary to
+ * contain omap_hwmod @oh resources.  Intended to be called by code
+ * that registers omap_devices.  Intended to be used to determine the
+ * size of a dynamically-allocated struct resource array, before
+ * calling omap_hwmod_fill_resources().  Returns the number of struct
+ * resource array elements needed.
+ *
+ * XXX This code is not optimized.  It could attempt to merge adjacent
+ * resource IDs.
+ *
+ */
+int omap_hwmod_count_resources(struct omap_hwmod *oh)
+{
+	int ret, i;
+
+	ret = oh->mpu_irqs_cnt + oh->sdma_chs_cnt;
+
+	for (i = 0; i < oh->slaves_cnt; i++)
+		ret += (*oh->slaves + i)->addr_cnt;
+
+	return ret;
+}
+
+/**
+ * omap_hwmod_fill_resources - fill struct resource array with hwmod data
+ * @oh: struct omap_hwmod *
+ * @res: pointer to the first element of an array of struct resource to fill
+ *
+ * Fill the struct resource array @res with resource data from the
+ * omap_hwmod @oh.  Intended to be called by code that registers
+ * omap_devices.  See also omap_hwmod_count_resources().  Returns the
+ * number of array elements filled.
+ */
+int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res)
+{
+	int i, j;
+	int r = 0;
+
+	/* For each IRQ, DMA, memory area, fill in array.*/
+
+	for (i = 0; i < oh->mpu_irqs_cnt; i++) {
+		(res + r)->start = *(oh->mpu_irqs + i);
+		(res + r)->end = *(oh->mpu_irqs + i);
+		(res + r)->flags = IORESOURCE_IRQ;
+		r++;
+	}
+
+	for (i = 0; i < oh->sdma_chs_cnt; i++) {
+		(res + r)->name = (oh->sdma_chs + i)->name;
+		(res + r)->start = (oh->sdma_chs + i)->dma_ch;
+		(res + r)->end = (oh->sdma_chs + i)->dma_ch;
+		(res + r)->flags = IORESOURCE_DMA;
+		r++;
+	}
+
+	for (i = 0; i < oh->slaves_cnt; i++) {
+		struct omap_hwmod_ocp_if *os;
+
+		os = *oh->slaves + i;
+
+		for (j = 0; j < os->addr_cnt; j++) {
+			(res + r)->start = (os->addr + j)->pa_start;
+			(res + r)->end = (os->addr + j)->pa_end;
+			(res + r)->flags = IORESOURCE_MEM;
+			r++;
+		}
+	}
+
+	return r;
+}
+
+/**
+ * omap_hwmod_get_pwrdm - return pointer to this module's main powerdomain
+ * @oh: struct omap_hwmod *
+ *
+ * Return the powerdomain pointer associated with the OMAP module
+ * @oh's main clock.  If @oh does not have a main clk, return the
+ * powerdomain associated with the interface clock associated with the
+ * module's MPU port. (XXX Perhaps this should use the SDMA port
+ * instead?)  Returns NULL on error, or a struct powerdomain * on
+ * success.
+ */
+struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
+{
+	struct clk *c;
+
+	if (!oh)
+		return NULL;
+
+	if (oh->_clk) {
+		c = oh->_clk;
+	} else {
+		if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
+			return NULL;
+		c = oh->slaves[oh->_mpu_port_index]->_clk;
+	}
+
+	return c->clkdm->pwrdm.ptr;
+
+}
+
+/**
+ * omap_hwmod_add_initiator_dep - add sleepdep from @init_oh to @oh
+ * @oh: struct omap_hwmod *
+ * @init_oh: struct omap_hwmod * (initiator)
+ *
+ * Add a sleep dependency between the initiator @init_oh and @oh.
+ * Intended to be called by DSP/Bridge code via platform_data for the
+ * DSP case; and by the DMA code in the sDMA case.  DMA code, *Bridge
+ * code needs to add/del initiator dependencies dynamically
+ * before/after accessing a device.  Returns the return value from
+ * _add_initiator_dep().
+ *
+ * XXX Keep a usecount in the clockdomain code
+ */
+int omap_hwmod_add_initiator_dep(struct omap_hwmod *oh,
+				 struct omap_hwmod *init_oh)
+{
+	return _add_initiator_dep(oh, init_oh);
+}
+
+/*
+ * XXX what about functions for drivers to save/restore ocp_sysconfig
+ * for context save/restore operations?
+ */
+
+/**
+ * omap_hwmod_del_initiator_dep - remove sleepdep from @init_oh to @oh
+ * @oh: struct omap_hwmod *
+ * @init_oh: struct omap_hwmod * (initiator)
+ *
+ * Remove a sleep dependency between the initiator @init_oh and @oh.
+ * Intended to be called by DSP/Bridge code via platform_data for the
+ * DSP case; and by the DMA code in the sDMA case.  DMA code, *Bridge
+ * code needs to add/del initiator dependencies dynamically
+ * before/after accessing a device.  Returns the return value from
+ * _del_initiator_dep().
+ *
+ * XXX Keep a usecount in the clockdomain code
+ */
+int omap_hwmod_del_initiator_dep(struct omap_hwmod *oh,
+				 struct omap_hwmod *init_oh)
+{
+	return _del_initiator_dep(oh, init_oh);
+}
+
+/**
+ * omap_hwmod_set_clockact_none - set clockactivity test to BOTH
+ * @oh: struct omap_hwmod *
+ *
+ * On some modules, this function can affect the wakeup latency vs.
+ * power consumption balance.  Intended to be called by the
+ * omap_device layer.  Passes along the return value from
+ * _write_clockact_lock().
+ */
+int omap_hwmod_set_clockact_both(struct omap_hwmod *oh)
+{
+	return _write_clockact_lock(oh, CLOCKACT_TEST_BOTH);
+}
+
+/**
+ * omap_hwmod_set_clockact_none - set clockactivity test to MAIN
+ * @oh: struct omap_hwmod *
+ *
+ * On some modules, this function can affect the wakeup latency vs.
+ * power consumption balance.  Intended to be called by the
+ * omap_device layer.  Passes along the return value from
+ * _write_clockact_lock().
+ */
+int omap_hwmod_set_clockact_main(struct omap_hwmod *oh)
+{
+	return _write_clockact_lock(oh, CLOCKACT_TEST_MAIN);
+}
+
+/**
+ * omap_hwmod_set_clockact_none - set clockactivity test to ICLK
+ * @oh: struct omap_hwmod *
+ *
+ * On some modules, this function can affect the wakeup latency vs.
+ * power consumption balance.  Intended to be called by the
+ * omap_device layer.  Passes along the return value from
+ * _write_clockact_lock().
+ */
+int omap_hwmod_set_clockact_iclk(struct omap_hwmod *oh)
+{
+	return _write_clockact_lock(oh, CLOCKACT_TEST_ICLK);
+}
+
+/**
+ * omap_hwmod_set_clockact_none - set clockactivity test to NONE
+ * @oh: struct omap_hwmod *
+ *
+ * On some modules, this function can affect the wakeup latency vs.
+ * power consumption balance.  Intended to be called by the
+ * omap_device layer.  Passes along the return value from
+ * _write_clockact_lock().
+ */
+int omap_hwmod_set_clockact_none(struct omap_hwmod *oh)
+{
+	return _write_clockact_lock(oh, CLOCKACT_TEST_NONE);
+}
+
+/**
+ * omap_hwmod_enable_wakeup - allow device to wake up the system
+ * @oh: struct omap_hwmod *
+ *
+ * Sets the module OCP socket ENAWAKEUP bit to allow the module to
+ * send wakeups to the PRCM.  Eventually this should sets PRCM wakeup
+ * registers to cause the PRCM to receive wakeup events from the
+ * module.  Does not set any wakeup routing registers beyond this
+ * point - if the module is to wake up any other module or subsystem,
+ * that must be set separately.  Called by omap_device code.  Returns
+ * -EINVAL on error or 0 upon success.
+ */
+int omap_hwmod_enable_wakeup(struct omap_hwmod *oh)
+{
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	_enable_wakeup(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
+
+/**
+ * omap_hwmod_disable_wakeup - prevent device from waking the system
+ * @oh: struct omap_hwmod *
+ *
+ * Clears the module OCP socket ENAWAKEUP bit to prevent the module
+ * from sending wakeups to the PRCM.  Eventually this should clear
+ * PRCM wakeup registers to cause the PRCM to ignore wakeup events
+ * from the module.  Does not set any wakeup routing registers beyond
+ * this point - if the module is to wake up any other module or
+ * subsystem, that must be set separately.  Called by omap_device
+ * code.  Returns -EINVAL on error or 0 upon success.
+ */
+int omap_hwmod_disable_wakeup(struct omap_hwmod *oh)
+{
+	if (!oh->sysconfig ||
+	    !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+		return -EINVAL;
+
+	mutex_lock(&omap_hwmod_mutex);
+	_disable_wakeup(oh);
+	mutex_unlock(&omap_hwmod_mutex);
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420.h b/arch/arm/mach-omap2/omap_hwmod_2420.h
new file mode 100644
index 00000000000..767e4965ac4
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_2420.h
@@ -0,0 +1,141 @@
+/*
+ * omap_hwmod_2420.h - hardware modules present on the OMAP2420 chips
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * 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.
+ *
+ * XXX handle crossbar/shared link difference for L3?
+ *
+ */
+#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD2420_H
+#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD2420_H
+
+#ifdef CONFIG_ARCH_OMAP2420
+
+#include <mach/omap_hwmod.h>
+#include <mach/irqs.h>
+#include <mach/cpu.h>
+#include <mach/dma.h>
+
+#include "prm-regbits-24xx.h"
+
+static struct omap_hwmod omap2420_mpu_hwmod;
+static struct omap_hwmod omap2420_l3_hwmod;
+static struct omap_hwmod omap2420_l4_core_hwmod;
+
+/* L3 -> L4_CORE interface */
+static struct omap_hwmod_ocp_if omap2420_l3__l4_core = {
+	.master	= &omap2420_l3_hwmod,
+	.slave	= &omap2420_l4_core_hwmod,
+	.user	= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* MPU -> L3 interface */
+static struct omap_hwmod_ocp_if omap2420_mpu__l3 = {
+	.master = &omap2420_mpu_hwmod,
+	.slave	= &omap2420_l3_hwmod,
+	.user	= OCP_USER_MPU,
+};
+
+/* Slave interfaces on the L3 interconnect */
+static struct omap_hwmod_ocp_if *omap2420_l3_slaves[] = {
+	&omap2420_mpu__l3,
+};
+
+/* Master interfaces on the L3 interconnect */
+static struct omap_hwmod_ocp_if *omap2420_l3_masters[] = {
+	&omap2420_l3__l4_core,
+};
+
+/* L3 */
+static struct omap_hwmod omap2420_l3_hwmod = {
+	.name		= "l3_hwmod",
+	.masters	= omap2420_l3_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2420_l3_masters),
+	.slaves		= omap2420_l3_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap2420_l3_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420)
+};
+
+static struct omap_hwmod omap2420_l4_wkup_hwmod;
+
+/* L4_CORE -> L4_WKUP interface */
+static struct omap_hwmod_ocp_if omap2420_l4_core__l4_wkup = {
+	.master	= &omap2420_l4_core_hwmod,
+	.slave	= &omap2420_l4_wkup_hwmod,
+	.user	= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* Slave interfaces on the L4_CORE interconnect */
+static struct omap_hwmod_ocp_if *omap2420_l4_core_slaves[] = {
+	&omap2420_l3__l4_core,
+};
+
+/* Master interfaces on the L4_CORE interconnect */
+static struct omap_hwmod_ocp_if *omap2420_l4_core_masters[] = {
+	&omap2420_l4_core__l4_wkup,
+};
+
+/* L4 CORE */
+static struct omap_hwmod omap2420_l4_core_hwmod = {
+	.name		= "l4_core_hwmod",
+	.masters	= omap2420_l4_core_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2420_l4_core_masters),
+	.slaves		= omap2420_l4_core_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap2420_l4_core_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420)
+};
+
+/* Slave interfaces on the L4_WKUP interconnect */
+static struct omap_hwmod_ocp_if *omap2420_l4_wkup_slaves[] = {
+	&omap2420_l4_core__l4_wkup,
+};
+
+/* Master interfaces on the L4_WKUP interconnect */
+static struct omap_hwmod_ocp_if *omap2420_l4_wkup_masters[] = {
+};
+
+/* L4 WKUP */
+static struct omap_hwmod omap2420_l4_wkup_hwmod = {
+	.name		= "l4_wkup_hwmod",
+	.masters	= omap2420_l4_wkup_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2420_l4_wkup_masters),
+	.slaves		= omap2420_l4_wkup_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap2420_l4_wkup_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420)
+};
+
+/* Master interfaces on the MPU device */
+static struct omap_hwmod_ocp_if *omap2420_mpu_masters[] = {
+	&omap2420_mpu__l3,
+};
+
+/* MPU */
+static struct omap_hwmod omap2420_mpu_hwmod = {
+	.name		= "mpu_hwmod",
+	.clkdev_dev_id	= NULL,
+	.clkdev_con_id	= "mpu_ck",
+	.masters	= omap2420_mpu_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2420_mpu_masters),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
+static __initdata struct omap_hwmod *omap2420_hwmods[] = {
+	&omap2420_l3_hwmod,
+	&omap2420_l4_core_hwmod,
+	&omap2420_l4_wkup_hwmod,
+	&omap2420_mpu_hwmod,
+	NULL,
+};
+
+#else
+# define omap2420_hwmods		0
+#endif
+
+#endif
+
+
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430.h b/arch/arm/mach-omap2/omap_hwmod_2430.h
new file mode 100644
index 00000000000..a412be6420e
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_2430.h
@@ -0,0 +1,143 @@
+/*
+ * omap_hwmod_2430.h - hardware modules present on the OMAP2430 chips
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * 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.
+ *
+ * XXX handle crossbar/shared link difference for L3?
+ *
+ */
+#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD2430_H
+#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD2430_H
+
+#ifdef CONFIG_ARCH_OMAP2430
+
+#include <mach/omap_hwmod.h>
+#include <mach/irqs.h>
+#include <mach/cpu.h>
+#include <mach/dma.h>
+
+#include "prm-regbits-24xx.h"
+
+static struct omap_hwmod omap2430_mpu_hwmod;
+static struct omap_hwmod omap2430_l3_hwmod;
+static struct omap_hwmod omap2430_l4_core_hwmod;
+
+/* L3 -> L4_CORE interface */
+static struct omap_hwmod_ocp_if omap2430_l3__l4_core = {
+	.master	= &omap2430_l3_hwmod,
+	.slave	= &omap2430_l4_core_hwmod,
+	.user	= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* MPU -> L3 interface */
+static struct omap_hwmod_ocp_if omap2430_mpu__l3 = {
+	.master = &omap2430_mpu_hwmod,
+	.slave	= &omap2430_l3_hwmod,
+	.user	= OCP_USER_MPU,
+};
+
+/* Slave interfaces on the L3 interconnect */
+static struct omap_hwmod_ocp_if *omap2430_l3_slaves[] = {
+	&omap2430_mpu__l3,
+};
+
+/* Master interfaces on the L3 interconnect */
+static struct omap_hwmod_ocp_if *omap2430_l3_masters[] = {
+	&omap2430_l3__l4_core,
+};
+
+/* L3 */
+static struct omap_hwmod omap2430_l3_hwmod = {
+	.name		= "l3_hwmod",
+	.masters	= omap2430_l3_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2430_l3_masters),
+	.slaves		= omap2430_l3_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap2430_l3_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
+};
+
+static struct omap_hwmod omap2430_l4_wkup_hwmod;
+static struct omap_hwmod omap2430_mmc1_hwmod;
+static struct omap_hwmod omap2430_mmc2_hwmod;
+
+/* L4_CORE -> L4_WKUP interface */
+static struct omap_hwmod_ocp_if omap2430_l4_core__l4_wkup = {
+	.master	= &omap2430_l4_core_hwmod,
+	.slave	= &omap2430_l4_wkup_hwmod,
+	.user	= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* Slave interfaces on the L4_CORE interconnect */
+static struct omap_hwmod_ocp_if *omap2430_l4_core_slaves[] = {
+	&omap2430_l3__l4_core,
+};
+
+/* Master interfaces on the L4_CORE interconnect */
+static struct omap_hwmod_ocp_if *omap2430_l4_core_masters[] = {
+	&omap2430_l4_core__l4_wkup,
+};
+
+/* L4 CORE */
+static struct omap_hwmod omap2430_l4_core_hwmod = {
+	.name		= "l4_core_hwmod",
+	.masters	= omap2430_l4_core_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2430_l4_core_masters),
+	.slaves		= omap2430_l4_core_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap2430_l4_core_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
+};
+
+/* Slave interfaces on the L4_WKUP interconnect */
+static struct omap_hwmod_ocp_if *omap2430_l4_wkup_slaves[] = {
+	&omap2430_l4_core__l4_wkup,
+};
+
+/* Master interfaces on the L4_WKUP interconnect */
+static struct omap_hwmod_ocp_if *omap2430_l4_wkup_masters[] = {
+};
+
+/* L4 WKUP */
+static struct omap_hwmod omap2430_l4_wkup_hwmod = {
+	.name		= "l4_wkup_hwmod",
+	.masters	= omap2430_l4_wkup_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2430_l4_wkup_masters),
+	.slaves		= omap2430_l4_wkup_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap2430_l4_wkup_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
+};
+
+/* Master interfaces on the MPU device */
+static struct omap_hwmod_ocp_if *omap2430_mpu_masters[] = {
+	&omap2430_mpu__l3,
+};
+
+/* MPU */
+static struct omap_hwmod omap2430_mpu_hwmod = {
+	.name		= "mpu_hwmod",
+	.clkdev_dev_id	= NULL,
+	.clkdev_con_id	= "mpu_ck",
+	.masters	= omap2430_mpu_masters,
+	.masters_cnt	= ARRAY_SIZE(omap2430_mpu_masters),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
+};
+
+static __initdata struct omap_hwmod *omap2430_hwmods[] = {
+	&omap2430_l3_hwmod,
+	&omap2430_l4_core_hwmod,
+	&omap2430_l4_wkup_hwmod,
+	&omap2430_mpu_hwmod,
+	NULL,
+};
+
+#else
+# define omap2430_hwmods		0
+#endif
+
+#endif
+
+
diff --git a/arch/arm/mach-omap2/omap_hwmod_34xx.h b/arch/arm/mach-omap2/omap_hwmod_34xx.h
new file mode 100644
index 00000000000..1e069f83157
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_34xx.h
@@ -0,0 +1,168 @@
+/*
+ * omap_hwmod_34xx.h - hardware modules present on the OMAP34xx chips
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * 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.
+ *
+ */
+#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD34XX_H
+#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD34XX_H
+
+#ifdef CONFIG_ARCH_OMAP34XX
+
+#include <mach/omap_hwmod.h>
+#include <mach/irqs.h>
+#include <mach/cpu.h>
+#include <mach/dma.h>
+
+#include "prm-regbits-34xx.h"
+
+static struct omap_hwmod omap34xx_mpu_hwmod;
+static struct omap_hwmod omap34xx_l3_hwmod;
+static struct omap_hwmod omap34xx_l4_core_hwmod;
+static struct omap_hwmod omap34xx_l4_per_hwmod;
+
+/* L3 -> L4_CORE interface */
+static struct omap_hwmod_ocp_if omap34xx_l3__l4_core = {
+	.master	= &omap34xx_l3_hwmod,
+	.slave	= &omap34xx_l4_core_hwmod,
+	.user	= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* L3 -> L4_PER interface */
+static struct omap_hwmod_ocp_if omap34xx_l3__l4_per = {
+	.master = &omap34xx_l3_hwmod,
+	.slave	= &omap34xx_l4_per_hwmod,
+	.user	= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* MPU -> L3 interface */
+static struct omap_hwmod_ocp_if omap34xx_mpu__l3 = {
+	.master = &omap34xx_mpu_hwmod,
+	.slave	= &omap34xx_l3_hwmod,
+	.user	= OCP_USER_MPU,
+};
+
+/* Slave interfaces on the L3 interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l3_slaves[] = {
+	&omap34xx_mpu__l3,
+};
+
+/* Master interfaces on the L3 interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l3_masters[] = {
+	&omap34xx_l3__l4_core,
+	&omap34xx_l3__l4_per,
+};
+
+/* L3 */
+static struct omap_hwmod omap34xx_l3_hwmod = {
+	.name		= "l3_hwmod",
+	.masters	= omap34xx_l3_masters,
+	.masters_cnt	= ARRAY_SIZE(omap34xx_l3_masters),
+	.slaves		= omap34xx_l3_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap34xx_l3_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+};
+
+static struct omap_hwmod omap34xx_l4_wkup_hwmod;
+
+/* L4_CORE -> L4_WKUP interface */
+static struct omap_hwmod_ocp_if omap34xx_l4_core__l4_wkup = {
+	.master	= &omap34xx_l4_core_hwmod,
+	.slave	= &omap34xx_l4_wkup_hwmod,
+	.user	= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* Slave interfaces on the L4_CORE interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l4_core_slaves[] = {
+	&omap34xx_l3__l4_core,
+};
+
+/* Master interfaces on the L4_CORE interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l4_core_masters[] = {
+	&omap34xx_l4_core__l4_wkup,
+};
+
+/* L4 CORE */
+static struct omap_hwmod omap34xx_l4_core_hwmod = {
+	.name		= "l4_core_hwmod",
+	.masters	= omap34xx_l4_core_masters,
+	.masters_cnt	= ARRAY_SIZE(omap34xx_l4_core_masters),
+	.slaves		= omap34xx_l4_core_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap34xx_l4_core_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+};
+
+/* Slave interfaces on the L4_PER interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l4_per_slaves[] = {
+	&omap34xx_l3__l4_per,
+};
+
+/* Master interfaces on the L4_PER interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l4_per_masters[] = {
+};
+
+/* L4 PER */
+static struct omap_hwmod omap34xx_l4_per_hwmod = {
+	.name		= "l4_per_hwmod",
+	.masters	= omap34xx_l4_per_masters,
+	.masters_cnt	= ARRAY_SIZE(omap34xx_l4_per_masters),
+	.slaves		= omap34xx_l4_per_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap34xx_l4_per_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+};
+
+/* Slave interfaces on the L4_WKUP interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l4_wkup_slaves[] = {
+	&omap34xx_l4_core__l4_wkup,
+};
+
+/* Master interfaces on the L4_WKUP interconnect */
+static struct omap_hwmod_ocp_if *omap34xx_l4_wkup_masters[] = {
+};
+
+/* L4 WKUP */
+static struct omap_hwmod omap34xx_l4_wkup_hwmod = {
+	.name		= "l4_wkup_hwmod",
+	.masters	= omap34xx_l4_wkup_masters,
+	.masters_cnt	= ARRAY_SIZE(omap34xx_l4_wkup_masters),
+	.slaves		= omap34xx_l4_wkup_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap34xx_l4_wkup_slaves),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+};
+
+/* Master interfaces on the MPU device */
+static struct omap_hwmod_ocp_if *omap34xx_mpu_masters[] = {
+	&omap34xx_mpu__l3,
+};
+
+/* MPU */
+static struct omap_hwmod omap34xx_mpu_hwmod = {
+	.name		= "mpu_hwmod",
+	.clkdev_dev_id	= NULL,
+	.clkdev_con_id	= "arm_fck",
+	.masters	= omap34xx_mpu_masters,
+	.masters_cnt	= ARRAY_SIZE(omap34xx_mpu_masters),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
+static __initdata struct omap_hwmod *omap34xx_hwmods[] = {
+	&omap34xx_l3_hwmod,
+	&omap34xx_l4_core_hwmod,
+	&omap34xx_l4_per_hwmod,
+	&omap34xx_l4_wkup_hwmod,
+	&omap34xx_mpu_hwmod,
+	NULL,
+};
+
+#else
+# define omap34xx_hwmods		0
+#endif
+
+#endif
+
+
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 6cc375a275b..1b4c1600f8d 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -20,13 +20,16 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/timer.h>
+#include <linux/sched.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/module.h>
 
 #include <mach/clock.h>
 #include <mach/board.h>
+#include <mach/powerdomain.h>
+#include <mach/clockdomain.h>
 
 #include "prm.h"
 #include "cm.h"
@@ -48,7 +51,9 @@ int omap2_pm_debug;
 	regs[reg_count++].val = __raw_readl(reg)
 #define DUMP_INTC_REG(reg, off) \
 	regs[reg_count].name = #reg; \
-	regs[reg_count++].val = __raw_readl(IO_ADDRESS(0x480fe000 + (off)))
+	regs[reg_count++].val = __raw_readl(OMAP2_IO_ADDRESS(0x480fe000 + (off)))
+
+static int __init pm_dbg_init(void);
 
 void omap2_pm_dump(int mode, int resume, unsigned int us)
 {
@@ -150,3 +155,425 @@ void omap2_pm_dump(int mode, int resume, unsigned int us)
 	for (i = 0; i < reg_count; i++)
 		printk(KERN_INFO "%-20s: 0x%08x\n", regs[i].name, regs[i].val);
 }
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+static void pm_dbg_regset_store(u32 *ptr);
+
+struct dentry *pm_dbg_dir;
+
+static int pm_dbg_init_done;
+
+enum {
+	DEBUG_FILE_COUNTERS = 0,
+	DEBUG_FILE_TIMERS,
+};
+
+struct pm_module_def {
+	char name[8]; /* Name of the module */
+	short type; /* CM or PRM */
+	unsigned short offset;
+	int low; /* First register address on this module */
+	int high; /* Last register address on this module */
+};
+
+#define MOD_CM 0
+#define MOD_PRM 1
+
+static const struct pm_module_def *pm_dbg_reg_modules;
+static const struct pm_module_def omap3_pm_reg_modules[] = {
+	{ "IVA2", MOD_CM, OMAP3430_IVA2_MOD, 0, 0x4c },
+	{ "OCP", MOD_CM, OCP_MOD, 0, 0x10 },
+	{ "MPU", MOD_CM, MPU_MOD, 4, 0x4c },
+	{ "CORE", MOD_CM, CORE_MOD, 0, 0x4c },
+	{ "SGX", MOD_CM, OMAP3430ES2_SGX_MOD, 0, 0x4c },
+	{ "WKUP", MOD_CM, WKUP_MOD, 0, 0x40 },
+	{ "CCR", MOD_CM, PLL_MOD, 0, 0x70 },
+	{ "DSS", MOD_CM, OMAP3430_DSS_MOD, 0, 0x4c },
+	{ "CAM", MOD_CM, OMAP3430_CAM_MOD, 0, 0x4c },
+	{ "PER", MOD_CM, OMAP3430_PER_MOD, 0, 0x4c },
+	{ "EMU", MOD_CM, OMAP3430_EMU_MOD, 0x40, 0x54 },
+	{ "NEON", MOD_CM, OMAP3430_NEON_MOD, 0x20, 0x48 },
+	{ "USB", MOD_CM, OMAP3430ES2_USBHOST_MOD, 0, 0x4c },
+
+	{ "IVA2", MOD_PRM, OMAP3430_IVA2_MOD, 0x50, 0xfc },
+	{ "OCP", MOD_PRM, OCP_MOD, 4, 0x1c },
+	{ "MPU", MOD_PRM, MPU_MOD, 0x58, 0xe8 },
+	{ "CORE", MOD_PRM, CORE_MOD, 0x58, 0xf8 },
+	{ "SGX", MOD_PRM, OMAP3430ES2_SGX_MOD, 0x58, 0xe8 },
+	{ "WKUP", MOD_PRM, WKUP_MOD, 0xa0, 0xb0 },
+	{ "CCR", MOD_PRM, PLL_MOD, 0x40, 0x70 },
+	{ "DSS", MOD_PRM, OMAP3430_DSS_MOD, 0x58, 0xe8 },
+	{ "CAM", MOD_PRM, OMAP3430_CAM_MOD, 0x58, 0xe8 },
+	{ "PER", MOD_PRM, OMAP3430_PER_MOD, 0x58, 0xe8 },
+	{ "EMU", MOD_PRM, OMAP3430_EMU_MOD, 0x58, 0xe4 },
+	{ "GLBL", MOD_PRM, OMAP3430_GR_MOD, 0x20, 0xe4 },
+	{ "NEON", MOD_PRM, OMAP3430_NEON_MOD, 0x58, 0xe8 },
+	{ "USB", MOD_PRM, OMAP3430ES2_USBHOST_MOD, 0x58, 0xe8 },
+	{ "", 0, 0, 0, 0 },
+};
+
+#define PM_DBG_MAX_REG_SETS 4
+
+static void *pm_dbg_reg_set[PM_DBG_MAX_REG_SETS];
+
+static int pm_dbg_get_regset_size(void)
+{
+	static int regset_size;
+
+	if (regset_size == 0) {
+		int i = 0;
+
+		while (pm_dbg_reg_modules[i].name[0] != 0) {
+			regset_size += pm_dbg_reg_modules[i].high +
+				4 - pm_dbg_reg_modules[i].low;
+			i++;
+		}
+	}
+	return regset_size;
+}
+
+static int pm_dbg_show_regs(struct seq_file *s, void *unused)
+{
+	int i, j;
+	unsigned long val;
+	int reg_set = (int)s->private;
+	u32 *ptr;
+	void *store = NULL;
+	int regs;
+	int linefeed;
+
+	if (reg_set == 0) {
+		store = kmalloc(pm_dbg_get_regset_size(), GFP_KERNEL);
+		ptr = store;
+		pm_dbg_regset_store(ptr);
+	} else {
+		ptr = pm_dbg_reg_set[reg_set - 1];
+	}
+
+	i = 0;
+
+	while (pm_dbg_reg_modules[i].name[0] != 0) {
+		regs = 0;
+		linefeed = 0;
+		if (pm_dbg_reg_modules[i].type == MOD_CM)
+			seq_printf(s, "MOD: CM_%s (%08x)\n",
+				pm_dbg_reg_modules[i].name,
+				(u32)(OMAP3430_CM_BASE +
+				pm_dbg_reg_modules[i].offset));
+		else
+			seq_printf(s, "MOD: PRM_%s (%08x)\n",
+				pm_dbg_reg_modules[i].name,
+				(u32)(OMAP3430_PRM_BASE +
+				pm_dbg_reg_modules[i].offset));
+
+		for (j = pm_dbg_reg_modules[i].low;
+			j <= pm_dbg_reg_modules[i].high; j += 4) {
+			val = *(ptr++);
+			if (val != 0) {
+				regs++;
+				if (linefeed) {
+					seq_printf(s, "\n");
+					linefeed = 0;
+				}
+				seq_printf(s, "  %02x => %08lx", j, val);
+				if (regs % 4 == 0)
+					linefeed = 1;
+			}
+		}
+		seq_printf(s, "\n");
+		i++;
+	}
+
+	if (store != NULL)
+		kfree(store);
+
+	return 0;
+}
+
+static void pm_dbg_regset_store(u32 *ptr)
+{
+	int i, j;
+	u32 val;
+
+	i = 0;
+
+	while (pm_dbg_reg_modules[i].name[0] != 0) {
+		for (j = pm_dbg_reg_modules[i].low;
+			j <= pm_dbg_reg_modules[i].high; j += 4) {
+			if (pm_dbg_reg_modules[i].type == MOD_CM)
+				val = cm_read_mod_reg(
+					pm_dbg_reg_modules[i].offset, j);
+			else
+				val = prm_read_mod_reg(
+					pm_dbg_reg_modules[i].offset, j);
+			*(ptr++) = val;
+		}
+		i++;
+	}
+}
+
+int pm_dbg_regset_save(int reg_set)
+{
+	if (pm_dbg_reg_set[reg_set-1] == NULL)
+		return -EINVAL;
+
+	pm_dbg_regset_store(pm_dbg_reg_set[reg_set-1]);
+
+	return 0;
+}
+
+static const char pwrdm_state_names[][4] = {
+	"OFF",
+	"RET",
+	"INA",
+	"ON"
+};
+
+void pm_dbg_update_time(struct powerdomain *pwrdm, int prev)
+{
+	s64 t;
+
+	if (!pm_dbg_init_done)
+		return ;
+
+	/* Update timer for previous state */
+	t = sched_clock();
+
+	pwrdm->state_timer[prev] += t - pwrdm->timer;
+
+	pwrdm->timer = t;
+}
+
+static int clkdm_dbg_show_counter(struct clockdomain *clkdm, void *user)
+{
+	struct seq_file *s = (struct seq_file *)user;
+
+	if (strcmp(clkdm->name, "emu_clkdm") == 0 ||
+		strcmp(clkdm->name, "wkup_clkdm") == 0 ||
+		strncmp(clkdm->name, "dpll", 4) == 0)
+		return 0;
+
+	seq_printf(s, "%s->%s (%d)", clkdm->name,
+			clkdm->pwrdm.ptr->name,
+			atomic_read(&clkdm->usecount));
+	seq_printf(s, "\n");
+
+	return 0;
+}
+
+static int pwrdm_dbg_show_counter(struct powerdomain *pwrdm, void *user)
+{
+	struct seq_file *s = (struct seq_file *)user;
+	int i;
+
+	if (strcmp(pwrdm->name, "emu_pwrdm") == 0 ||
+		strcmp(pwrdm->name, "wkup_pwrdm") == 0 ||
+		strncmp(pwrdm->name, "dpll", 4) == 0)
+		return 0;
+
+	if (pwrdm->state != pwrdm_read_pwrst(pwrdm))
+		printk(KERN_ERR "pwrdm state mismatch(%s) %d != %d\n",
+			pwrdm->name, pwrdm->state, pwrdm_read_pwrst(pwrdm));
+
+	seq_printf(s, "%s (%s)", pwrdm->name,
+			pwrdm_state_names[pwrdm->state]);
+	for (i = 0; i < 4; i++)
+		seq_printf(s, ",%s:%d", pwrdm_state_names[i],
+			pwrdm->state_counter[i]);
+
+	seq_printf(s, "\n");
+
+	return 0;
+}
+
+static int pwrdm_dbg_show_timer(struct powerdomain *pwrdm, void *user)
+{
+	struct seq_file *s = (struct seq_file *)user;
+	int i;
+
+	if (strcmp(pwrdm->name, "emu_pwrdm") == 0 ||
+		strcmp(pwrdm->name, "wkup_pwrdm") == 0 ||
+		strncmp(pwrdm->name, "dpll", 4) == 0)
+		return 0;
+
+	pwrdm_state_switch(pwrdm);
+
+	seq_printf(s, "%s (%s)", pwrdm->name,
+		pwrdm_state_names[pwrdm->state]);
+
+	for (i = 0; i < 4; i++)
+		seq_printf(s, ",%s:%lld", pwrdm_state_names[i],
+			pwrdm->state_timer[i]);
+
+	seq_printf(s, "\n");
+	return 0;
+}
+
+static int pm_dbg_show_counters(struct seq_file *s, void *unused)
+{
+	pwrdm_for_each(pwrdm_dbg_show_counter, s);
+	clkdm_for_each(clkdm_dbg_show_counter, s);
+
+	return 0;
+}
+
+static int pm_dbg_show_timers(struct seq_file *s, void *unused)
+{
+	pwrdm_for_each(pwrdm_dbg_show_timer, s);
+	return 0;
+}
+
+static int pm_dbg_open(struct inode *inode, struct file *file)
+{
+	switch ((int)inode->i_private) {
+	case DEBUG_FILE_COUNTERS:
+		return single_open(file, pm_dbg_show_counters,
+			&inode->i_private);
+	case DEBUG_FILE_TIMERS:
+	default:
+		return single_open(file, pm_dbg_show_timers,
+			&inode->i_private);
+	};
+}
+
+static int pm_dbg_reg_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pm_dbg_show_regs, inode->i_private);
+}
+
+static const struct file_operations debug_fops = {
+	.open           = pm_dbg_open,
+	.read           = seq_read,
+	.llseek         = seq_lseek,
+	.release        = single_release,
+};
+
+static const struct file_operations debug_reg_fops = {
+	.open           = pm_dbg_reg_open,
+	.read           = seq_read,
+	.llseek         = seq_lseek,
+	.release        = single_release,
+};
+
+int pm_dbg_regset_init(int reg_set)
+{
+	char name[2];
+
+	if (!pm_dbg_init_done)
+		pm_dbg_init();
+
+	if (reg_set < 1 || reg_set > PM_DBG_MAX_REG_SETS ||
+		pm_dbg_reg_set[reg_set-1] != NULL)
+		return -EINVAL;
+
+	pm_dbg_reg_set[reg_set-1] =
+		kmalloc(pm_dbg_get_regset_size(), GFP_KERNEL);
+
+	if (pm_dbg_reg_set[reg_set-1] == NULL)
+		return -ENOMEM;
+
+	if (pm_dbg_dir != NULL) {
+		sprintf(name, "%d", reg_set);
+
+		(void) debugfs_create_file(name, S_IRUGO,
+			pm_dbg_dir, (void *)reg_set, &debug_reg_fops);
+	}
+
+	return 0;
+}
+
+static int pwrdm_suspend_get(void *data, u64 *val)
+{
+	*val = omap3_pm_get_suspend_state((struct powerdomain *)data);
+
+	if (*val >= 0)
+		return 0;
+	return *val;
+}
+
+static int pwrdm_suspend_set(void *data, u64 val)
+{
+	return omap3_pm_set_suspend_state((struct powerdomain *)data, (int)val);
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(pwrdm_suspend_fops, pwrdm_suspend_get,
+			pwrdm_suspend_set, "%llu\n");
+
+static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir)
+{
+	int i;
+	s64 t;
+	struct dentry *d;
+
+	t = sched_clock();
+
+	for (i = 0; i < 4; i++)
+		pwrdm->state_timer[i] = 0;
+
+	pwrdm->timer = t;
+
+	if (strncmp(pwrdm->name, "dpll", 4) == 0)
+		return 0;
+
+	d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir);
+
+	(void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d,
+			(void *)pwrdm, &pwrdm_suspend_fops);
+
+	return 0;
+}
+
+static int __init pm_dbg_init(void)
+{
+	int i;
+	struct dentry *d;
+	char name[2];
+
+	if (pm_dbg_init_done)
+		return 0;
+
+	if (cpu_is_omap34xx())
+		pm_dbg_reg_modules = omap3_pm_reg_modules;
+	else {
+		printk(KERN_ERR "%s: only OMAP3 supported\n", __func__);
+		return -ENODEV;
+	}
+		
+	d = debugfs_create_dir("pm_debug", NULL);
+	if (IS_ERR(d))
+		return PTR_ERR(d);
+
+	(void) debugfs_create_file("count", S_IRUGO,
+		d, (void *)DEBUG_FILE_COUNTERS, &debug_fops);
+	(void) debugfs_create_file("time", S_IRUGO,
+		d, (void *)DEBUG_FILE_TIMERS, &debug_fops);
+
+	pwrdm_for_each(pwrdms_setup, (void *)d);
+
+	pm_dbg_dir = debugfs_create_dir("registers", d);
+	if (IS_ERR(pm_dbg_dir))
+		return PTR_ERR(pm_dbg_dir);
+
+	(void) debugfs_create_file("current", S_IRUGO,
+		pm_dbg_dir, (void *)0, &debug_reg_fops);
+
+	for (i = 0; i < PM_DBG_MAX_REG_SETS; i++)
+		if (pm_dbg_reg_set[i] != NULL) {
+			sprintf(name, "%d", i+1);
+			(void) debugfs_create_file(name, S_IRUGO,
+				pm_dbg_dir, (void *)(i+1), &debug_reg_fops);
+
+		}
+
+	pm_dbg_init_done = 1;
+
+	return 0;
+}
+arch_initcall(pm_dbg_init);
+
+#else
+void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) {}
+#endif
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 21201cd4117..8400f576892 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -11,12 +11,23 @@
 #ifndef __ARCH_ARM_MACH_OMAP2_PM_H
 #define __ARCH_ARM_MACH_OMAP2_PM_H
 
+#include <mach/powerdomain.h>
+
+extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
+extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
+
 #ifdef CONFIG_PM_DEBUG
 extern void omap2_pm_dump(int mode, int resume, unsigned int us);
 extern int omap2_pm_debug;
+extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
+extern int pm_dbg_regset_save(int reg_set);
+extern int pm_dbg_regset_init(int reg_set);
 #else
 #define omap2_pm_dump(mode, resume, us)		do {} while (0);
 #define omap2_pm_debug				0
+#define pm_dbg_update_time(pwrdm, prev) do {} while (0);
+#define pm_dbg_regset_save(reg_set) do {} while (0);
+#define pm_dbg_regset_init(reg_set) do {} while (0);
 #endif /* CONFIG_PM_DEBUG */
 
 extern void omap24xx_idle_loop_suspend(void);
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 528dbdc26e2..bff5c4e8974 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -333,7 +333,7 @@ static struct platform_suspend_ops omap_pm_ops = {
 	.valid		= suspend_valid_only_mem,
 };
 
-static int _pm_clkdm_enable_hwsup(struct clockdomain *clkdm)
+static int _pm_clkdm_enable_hwsup(struct clockdomain *clkdm, void *unused)
 {
 	omap2_clkdm_allow_idle(clkdm);
 	return 0;
@@ -385,7 +385,7 @@ static void __init prcm_setup_regs(void)
 	omap2_clkdm_sleep(gfx_clkdm);
 
 	/* Enable clockdomain hardware-supervised control for all clkdms */
-	clkdm_for_each(_pm_clkdm_enable_hwsup);
+	clkdm_for_each(_pm_clkdm_enable_hwsup, NULL);
 
 	/* Enable clock autoidle for all domains */
 	cm_write_mod_reg(OMAP24XX_AUTO_CAM |
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 488d595d8e4..0ff5a6c53aa 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -170,6 +170,8 @@ static void omap_sram_idle(void)
 		printk(KERN_ERR "Invalid mpu state in sram_idle\n");
 		return;
 	}
+	pwrdm_pre_transition();
+
 	omap2_gpio_prepare_for_retention();
 	omap_uart_prepare_idle(0);
 	omap_uart_prepare_idle(1);
@@ -182,6 +184,9 @@ static void omap_sram_idle(void)
 	omap_uart_resume_idle(1);
 	omap_uart_resume_idle(0);
 	omap2_gpio_resume_after_retention();
+
+	pwrdm_post_transition();
+
 }
 
 /*
@@ -271,6 +276,7 @@ static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 	if (sleep_switch) {
 		omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]);
 		pwrdm_wait_transition(pwrdm);
+		pwrdm_state_switch(pwrdm);
 	}
 
 err:
@@ -658,14 +664,38 @@ static void __init prcm_setup_regs(void)
 	omap3_d2d_idle();
 }
 
-static int __init pwrdms_setup(struct powerdomain *pwrdm)
+int omap3_pm_get_suspend_state(struct powerdomain *pwrdm)
+{
+	struct power_state *pwrst;
+
+	list_for_each_entry(pwrst, &pwrst_list, node) {
+		if (pwrst->pwrdm == pwrdm)
+			return pwrst->next_state;
+	}
+	return -EINVAL;
+}
+
+int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state)
+{
+	struct power_state *pwrst;
+
+	list_for_each_entry(pwrst, &pwrst_list, node) {
+		if (pwrst->pwrdm == pwrdm) {
+			pwrst->next_state = state;
+			return 0;
+		}
+	}
+	return -EINVAL;
+}
+
+static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
 {
 	struct power_state *pwrst;
 
 	if (!pwrdm->pwrsts)
 		return 0;
 
-	pwrst = kmalloc(sizeof(struct power_state), GFP_KERNEL);
+	pwrst = kmalloc(sizeof(struct power_state), GFP_ATOMIC);
 	if (!pwrst)
 		return -ENOMEM;
 	pwrst->pwrdm = pwrdm;
@@ -683,7 +713,7 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm)
  * supported. Initiate sleep transition for other clockdomains, if
  * they are not used
  */
-static int __init clkdms_setup(struct clockdomain *clkdm)
+static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
 {
 	if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
 		omap2_clkdm_allow_idle(clkdm);
@@ -716,13 +746,13 @@ static int __init omap3_pm_init(void)
 		goto err1;
 	}
 
-	ret = pwrdm_for_each(pwrdms_setup);
+	ret = pwrdm_for_each(pwrdms_setup, NULL);
 	if (ret) {
 		printk(KERN_ERR "Failed to setup powerdomains\n");
 		goto err2;
 	}
 
-	(void) clkdm_for_each(clkdms_setup);
+	(void) clkdm_for_each(clkdms_setup, NULL);
 
 	mpu_pwrdm = pwrdm_lookup("mpu_pwrdm");
 	if (mpu_pwrdm == NULL) {
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 983f1cb676b..2594cbff394 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -35,6 +35,13 @@
 #include <mach/powerdomain.h>
 #include <mach/clockdomain.h>
 
+#include "pm.h"
+
+enum {
+	PWRDM_STATE_NOW = 0,
+	PWRDM_STATE_PREV,
+};
+
 /* pwrdm_list contains all registered struct powerdomains */
 static LIST_HEAD(pwrdm_list);
 
@@ -83,7 +90,7 @@ static struct powerdomain *_pwrdm_deps_lookup(struct powerdomain *pwrdm,
 	if (!pwrdm || !deps || !omap_chip_is(pwrdm->omap_chip))
 		return ERR_PTR(-EINVAL);
 
-	for (pd = deps; pd; pd++) {
+	for (pd = deps; pd->pwrdm_name; pd++) {
 
 		if (!omap_chip_is(pd->omap_chip))
 			continue;
@@ -96,12 +103,71 @@ static struct powerdomain *_pwrdm_deps_lookup(struct powerdomain *pwrdm,
 
 	}
 
-	if (!pd)
+	if (!pd->pwrdm_name)
 		return ERR_PTR(-ENOENT);
 
 	return pd->pwrdm;
 }
 
+static int _pwrdm_state_switch(struct powerdomain *pwrdm, int flag)
+{
+
+	int prev;
+	int state;
+
+	if (pwrdm == NULL)
+		return -EINVAL;
+
+	state = pwrdm_read_pwrst(pwrdm);
+
+	switch (flag) {
+	case PWRDM_STATE_NOW:
+		prev = pwrdm->state;
+		break;
+	case PWRDM_STATE_PREV:
+		prev = pwrdm_read_prev_pwrst(pwrdm);
+		if (pwrdm->state != prev)
+			pwrdm->state_counter[prev]++;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (state != prev)
+		pwrdm->state_counter[state]++;
+
+	pm_dbg_update_time(pwrdm, prev);
+
+	pwrdm->state = state;
+
+	return 0;
+}
+
+static int _pwrdm_pre_transition_cb(struct powerdomain *pwrdm, void *unused)
+{
+	pwrdm_clear_all_prev_pwrst(pwrdm);
+	_pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW);
+	return 0;
+}
+
+static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused)
+{
+	_pwrdm_state_switch(pwrdm, PWRDM_STATE_PREV);
+	return 0;
+}
+
+static __init void _pwrdm_setup(struct powerdomain *pwrdm)
+{
+	int i;
+
+	for (i = 0; i < 4; i++)
+		pwrdm->state_counter[i] = 0;
+
+	pwrdm_wait_transition(pwrdm);
+	pwrdm->state = pwrdm_read_pwrst(pwrdm);
+	pwrdm->state_counter[pwrdm->state] = 1;
+
+}
 
 /* Public functions */
 
@@ -117,9 +183,12 @@ void pwrdm_init(struct powerdomain **pwrdm_list)
 {
 	struct powerdomain **p = NULL;
 
-	if (pwrdm_list)
-		for (p = pwrdm_list; *p; p++)
+	if (pwrdm_list) {
+		for (p = pwrdm_list; *p; p++) {
 			pwrdm_register(*p);
+			_pwrdm_setup(*p);
+		}
+	}
 }
 
 /**
@@ -217,7 +286,8 @@ struct powerdomain *pwrdm_lookup(const char *name)
  * anything else to indicate failure; or -EINVAL if the function
  * pointer is null.
  */
-int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm))
+int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm, void *user),
+			void *user)
 {
 	struct powerdomain *temp_pwrdm;
 	unsigned long flags;
@@ -228,7 +298,7 @@ int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm))
 
 	read_lock_irqsave(&pwrdm_rwlock, flags);
 	list_for_each_entry(temp_pwrdm, &pwrdm_list, node) {
-		ret = (*fn)(temp_pwrdm);
+		ret = (*fn)(temp_pwrdm, user);
 		if (ret)
 			break;
 	}
@@ -1110,4 +1180,36 @@ int pwrdm_wait_transition(struct powerdomain *pwrdm)
 	return 0;
 }
 
+int pwrdm_state_switch(struct powerdomain *pwrdm)
+{
+	return _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW);
+}
+
+int pwrdm_clkdm_state_switch(struct clockdomain *clkdm)
+{
+	if (clkdm != NULL && clkdm->pwrdm.ptr != NULL) {
+		pwrdm_wait_transition(clkdm->pwrdm.ptr);
+		return pwrdm_state_switch(clkdm->pwrdm.ptr);
+	}
+
+	return -EINVAL;
+}
+int pwrdm_clk_state_switch(struct clk *clk)
+{
+	if (clk != NULL && clk->clkdm != NULL)
+		return pwrdm_clkdm_state_switch(clk->clkdm);
+	return -EINVAL;
+}
+
+int pwrdm_pre_transition(void)
+{
+	pwrdm_for_each(_pwrdm_pre_transition_cb, NULL);
+	return 0;
+}
+
+int pwrdm_post_transition(void)
+{
+	pwrdm_for_each(_pwrdm_post_transition_cb, NULL);
+	return 0;
+}
 
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 9937e281469..03c467c35f5 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -17,11 +17,11 @@
 #include "prcm-common.h"
 
 #define OMAP2420_PRM_REGADDR(module, reg)				\
-			IO_ADDRESS(OMAP2420_PRM_BASE + (module) + (reg))
+			OMAP2_IO_ADDRESS(OMAP2420_PRM_BASE + (module) + (reg))
 #define OMAP2430_PRM_REGADDR(module, reg)				\
-			IO_ADDRESS(OMAP2430_PRM_BASE + (module) + (reg))
+			OMAP2_IO_ADDRESS(OMAP2430_PRM_BASE + (module) + (reg))
 #define OMAP34XX_PRM_REGADDR(module, reg)				\
-			IO_ADDRESS(OMAP3430_PRM_BASE + (module) + (reg))
+			OMAP2_IO_ADDRESS(OMAP3430_PRM_BASE + (module) + (reg))
 
 /*
  * Architecture-specific global PRM registers
diff --git a/arch/arm/mach-omap2/sdrc.h b/arch/arm/mach-omap2/sdrc.h
index 1a8bbd09406..0837eda5f2b 100644
--- a/arch/arm/mach-omap2/sdrc.h
+++ b/arch/arm/mach-omap2/sdrc.h
@@ -48,9 +48,9 @@ static inline u32 sms_read_reg(u16 reg)
 	return __raw_readl(OMAP_SMS_REGADDR(reg));
 }
 #else
-#define OMAP242X_SDRC_REGADDR(reg)	IO_ADDRESS(OMAP2420_SDRC_BASE + (reg))
-#define OMAP243X_SDRC_REGADDR(reg)	IO_ADDRESS(OMAP243X_SDRC_BASE + (reg))
-#define OMAP34XX_SDRC_REGADDR(reg)	IO_ADDRESS(OMAP343X_SDRC_BASE + (reg))
+#define OMAP242X_SDRC_REGADDR(reg)	OMAP2_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg))
+#define OMAP243X_SDRC_REGADDR(reg)	OMAP2_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg))
+#define OMAP34XX_SDRC_REGADDR(reg)	OMAP2_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg))
 #endif	/* __ASSEMBLER__ */
 
 #endif
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index a7421a50410..3a529c77daa 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -73,7 +73,7 @@ static LIST_HEAD(uart_list);
 
 static struct plat_serial8250_port serial_platform_data0[] = {
 	{
-		.membase	= IO_ADDRESS(OMAP_UART1_BASE),
+		.membase	= OMAP2_IO_ADDRESS(OMAP_UART1_BASE),
 		.mapbase	= OMAP_UART1_BASE,
 		.irq		= 72,
 		.flags		= UPF_BOOT_AUTOCONF,
@@ -87,7 +87,7 @@ static struct plat_serial8250_port serial_platform_data0[] = {
 
 static struct plat_serial8250_port serial_platform_data1[] = {
 	{
-		.membase	= IO_ADDRESS(OMAP_UART2_BASE),
+		.membase	= OMAP2_IO_ADDRESS(OMAP_UART2_BASE),
 		.mapbase	= OMAP_UART2_BASE,
 		.irq		= 73,
 		.flags		= UPF_BOOT_AUTOCONF,
@@ -101,7 +101,7 @@ static struct plat_serial8250_port serial_platform_data1[] = {
 
 static struct plat_serial8250_port serial_platform_data2[] = {
 	{
-		.membase	= IO_ADDRESS(OMAP_UART3_BASE),
+		.membase	= OMAP2_IO_ADDRESS(OMAP_UART3_BASE),
 		.mapbase	= OMAP_UART3_BASE,
 		.irq		= 74,
 		.flags		= UPF_BOOT_AUTOCONF,
@@ -109,10 +109,35 @@ static struct plat_serial8250_port serial_platform_data2[] = {
 		.regshift	= 2,
 		.uartclk	= OMAP24XX_BASE_BAUD * 16,
 	}, {
+#ifdef CONFIG_ARCH_OMAP4
+		.membase	= IO_ADDRESS(OMAP_UART4_BASE),
+		.mapbase	= OMAP_UART4_BASE,
+		.irq		= 70,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP24XX_BASE_BAUD * 16,
+	}, {
+#endif
 		.flags		= 0
 	}
 };
 
+#ifdef CONFIG_ARCH_OMAP4
+static struct plat_serial8250_port serial_platform_data3[] = {
+	{
+		.membase	= IO_ADDRESS(OMAP_UART4_BASE),
+		.mapbase	= OMAP_UART4_BASE,
+		.irq		= 70,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP24XX_BASE_BAUD * 16,
+	}, {
+		.flags		= 0
+	}
+};
+#endif
 static inline unsigned int serial_read_reg(struct plat_serial8250_port *up,
 					   int offset)
 {
@@ -460,7 +485,7 @@ static void omap_uart_idle_init(struct omap_uart_state *uart)
 		uart->padconf = 0;
 	}
 
-	p->flags |= UPF_SHARE_IRQ;
+	p->irqflags |= IRQF_SHARED;
 	ret = request_irq(p->irq, omap_uart_interrupt, IRQF_SHARED,
 			  "serial idle", (void *)uart);
 	WARN_ON(ret);
@@ -550,12 +575,22 @@ static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS] = {
 			},
 		},
 	},
+#ifdef CONFIG_ARCH_OMAP4
+	{
+		.pdev = {
+			.name			= "serial8250",
+			.id			= 3
+			.dev			= {
+				.platform_data	= serial_platform_data3,
+			},
+		},
+	},
+#endif
 };
 
-void __init omap_serial_init(void)
+void __init omap_serial_early_init(void)
 {
 	int i;
-	const struct omap_uart_config *info;
 	char name[16];
 
 	/*
@@ -564,23 +599,12 @@ void __init omap_serial_init(void)
 	 * if not needed.
 	 */
 
-	info = omap_get_config(OMAP_TAG_UART, struct omap_uart_config);
-
-	if (info == NULL)
-		return;
-
 	for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
 		struct omap_uart_state *uart = &omap_uart[i];
 		struct platform_device *pdev = &uart->pdev;
 		struct device *dev = &pdev->dev;
 		struct plat_serial8250_port *p = dev->platform_data;
 
-		if (!(info->enabled_uarts & (1 << i))) {
-			p->membase = NULL;
-			p->mapbase = 0;
-			continue;
-		}
-
 		sprintf(name, "uart%d_ick", i+1);
 		uart->ick = clk_get(NULL, name);
 		if (IS_ERR(uart->ick)) {
@@ -595,8 +619,11 @@ void __init omap_serial_init(void)
 			uart->fck = NULL;
 		}
 
-		if (!uart->ick || !uart->fck)
-			continue;
+		/* FIXME: Remove this once the clkdev is ready */
+		if (!cpu_is_omap44xx()) {
+			if (!uart->ick || !uart->fck)
+				continue;
+		}
 
 		uart->num = i;
 		p->private_data = uart;
@@ -607,6 +634,18 @@ void __init omap_serial_init(void)
 			p->irq += 32;
 
 		omap_uart_enable_clocks(uart);
+	}
+}
+
+void __init omap_serial_init(void)
+{
+	int i;
+
+	for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
+		struct omap_uart_state *uart = &omap_uart[i];
+		struct platform_device *pdev = &uart->pdev;
+		struct device *dev = &pdev->dev;
+
 		omap_uart_reset(uart);
 		omap_uart_idle_init(uart);
 
diff --git a/arch/arm/mach-omap2/sram242x.S b/arch/arm/mach-omap2/sram242x.S
index bb299851116..9b62208658b 100644
--- a/arch/arm/mach-omap2/sram242x.S
+++ b/arch/arm/mach-omap2/sram242x.S
@@ -128,7 +128,7 @@ omap242x_sdi_prcm_voltctrl:
 prcm_mask_val:
 	.word 0xFFFF3FFC
 omap242x_sdi_timer_32ksynct_cr:
-	.word IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010)
+	.word OMAP2_IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010)
 ENTRY(omap242x_sram_ddr_init_sz)
 	.word	. - omap242x_sram_ddr_init
 
@@ -224,7 +224,7 @@ omap242x_srs_prcm_voltctrl:
 ddr_prcm_mask_val:
 	.word 0xFFFF3FFC
 omap242x_srs_timer_32ksynct:
-	.word IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010)
+	.word OMAP2_IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010)
 
 ENTRY(omap242x_sram_reprogram_sdrc_sz)
 	.word	. - omap242x_sram_reprogram_sdrc
diff --git a/arch/arm/mach-omap2/sram243x.S b/arch/arm/mach-omap2/sram243x.S
index 9955abcaeb3..df2cd9277c0 100644
--- a/arch/arm/mach-omap2/sram243x.S
+++ b/arch/arm/mach-omap2/sram243x.S
@@ -128,7 +128,7 @@ omap243x_sdi_prcm_voltctrl:
 prcm_mask_val:
 	.word 0xFFFF3FFC
 omap243x_sdi_timer_32ksynct_cr:
-	.word IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010)
+	.word OMAP2_IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010)
 ENTRY(omap243x_sram_ddr_init_sz)
 	.word	. - omap243x_sram_ddr_init
 
@@ -224,7 +224,7 @@ omap243x_srs_prcm_voltctrl:
 ddr_prcm_mask_val:
 	.word 0xFFFF3FFC
 omap243x_srs_timer_32ksynct:
-	.word IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010)
+	.word OMAP2_IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010)
 
 ENTRY(omap243x_sram_reprogram_sdrc_sz)
 	.word	. - omap243x_sram_reprogram_sdrc
diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
index 97eeeebcb06..e2338c0aebc 100644
--- a/arch/arm/mach-omap2/timer-gp.c
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -231,7 +231,7 @@ static void __init omap2_gp_clocksource_init(void)
 static void __init omap2_gp_timer_init(void)
 {
 #ifdef CONFIG_LOCAL_TIMERS
-	twd_base = IO_ADDRESS(OMAP44XX_LOCAL_TWD_BASE);
+	twd_base = OMAP2_IO_ADDRESS(OMAP44XX_LOCAL_TWD_BASE);
 #endif
 	omap_dm_timer_init();
 
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index 739e59e8025..1145a2562b0 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -31,15 +31,6 @@
 #include <mach/mux.h>
 #include <mach/usb.h>
 
-#define OTG_SYSCONFIG	(OMAP34XX_HSUSB_OTG_BASE + 0x404)
-
-static void __init usb_musb_pm_init(void)
-{
-	/* Ensure force-idle mode for OTG controller */
-	if (cpu_is_omap34xx())
-		omap_writel(0, OTG_SYSCONFIG);
-}
-
 #ifdef CONFIG_USB_MUSB_SOC
 
 static struct resource musb_resources[] = {
@@ -173,13 +164,10 @@ void __init usb_musb_init(void)
 		printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
 		return;
 	}
-
-	usb_musb_pm_init();
 }
 
 #else
 void __init usb_musb_init(void)
 {
-	usb_musb_pm_init();
 }
 #endif /* CONFIG_USB_MUSB_SOC */