21 files changed, 139 insertions, 143 deletions

diff --git a/arch/arm/mach-s3c2410/bast-irq.c b/arch/arm/mach-s3c2410/bast-irq.c
index bc53d2d16d1a..ac7b2ad5c405 100644
--- a/arch/arm/mach-s3c2410/bast-irq.c
+++ b/arch/arm/mach-s3c2410/bast-irq.c
@@ -24,7 +24,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/ioport.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/io.h>
 
 #include <asm/mach-types.h>
diff --git a/arch/arm/mach-s3c2410/common.h b/arch/arm/mach-s3c2410/common.h
new file mode 100644
index 000000000000..f65dc8062961
--- /dev/null
+++ b/arch/arm/mach-s3c2410/common.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Common Header for S3C2410 machines
+ *
+ * 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_MACH_S3C2410_COMMON_H
+#define __ARCH_ARM_MACH_S3C2410_COMMON_H
+
+void s3c2410_restart(char mode, const char *cmd);
+
+#endif /* __ARCH_ARM_MACH_S3C2410_COMMON_H */
diff --git a/arch/arm/mach-s3c2410/cpu-freq.c b/arch/arm/mach-s3c2410/cpu-freq.c
index 75189df995ae..7dc6c46b5e2b 100644
--- a/arch/arm/mach-s3c2410/cpu-freq.c
+++ b/arch/arm/mach-s3c2410/cpu-freq.c
@@ -16,7 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/cpufreq.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
@@ -115,24 +115,25 @@ static struct s3c_cpufreq_info s3c2410_cpufreq_info = {
 	.debug_io_show	= s3c_cpufreq_debugfs_call(s3c2410_iotiming_debugfs),
 };
 
-static int s3c2410_cpufreq_add(struct sys_device *sysdev)
+static int s3c2410_cpufreq_add(struct device *dev)
 {
 	return s3c_cpufreq_register(&s3c2410_cpufreq_info);
 }
 
-static struct sysdev_driver s3c2410_cpufreq_driver = {
-	.add		= s3c2410_cpufreq_add,
+static struct subsys_interface s3c2410_cpufreq_interface = {
+	.name		= "s3c2410_cpufreq",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_cpufreq_add,
 };
 
 static int __init s3c2410_cpufreq_init(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass,
-				      &s3c2410_cpufreq_driver);
+	return subsys_interface_register(&s3c2410_cpufreq_interface);
 }
 
 arch_initcall(s3c2410_cpufreq_init);
 
-static int s3c2410a_cpufreq_add(struct sys_device *sysdev)
+static int s3c2410a_cpufreq_add(struct device *dev)
 {
 	/* alter the maximum freq settings for S3C2410A. If a board knows
 	 * it only has a maximum of 200, then it should register its own
@@ -143,17 +144,18 @@ static int s3c2410a_cpufreq_add(struct sys_device *sysdev)
 	s3c2410_cpufreq_info.max.pclk =  66500000;
 	s3c2410_cpufreq_info.name = "s3c2410a";
 
-	return s3c2410_cpufreq_add(sysdev);
+	return s3c2410_cpufreq_add(dev);
 }
 
-static struct sysdev_driver s3c2410a_cpufreq_driver = {
-	.add		= s3c2410a_cpufreq_add,
+static struct subsys_interface s3c2410a_cpufreq_interface = {
+	.name		= "s3c2410a_cpufreq",
+	.subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410a_cpufreq_add,
 };
 
 static int __init s3c2410a_cpufreq_init(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass,
-				      &s3c2410a_cpufreq_driver);
+	return subsys_interface_register(&s3c2410a_cpufreq_interface);
 }
 
 arch_initcall(s3c2410a_cpufreq_init);
diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c
index dbe43df8cfec..2afd00014a77 100644
--- a/arch/arm/mach-s3c2410/dma.c
+++ b/arch/arm/mach-s3c2410/dma.c
@@ -14,7 +14,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/serial_core.h>
 
 #include <mach/map.h>
@@ -132,7 +132,7 @@ static struct s3c24xx_dma_order __initdata s3c2410_dma_order = {
 	},
 };
 
-static int __init s3c2410_dma_add(struct sys_device *sysdev)
+static int __init s3c2410_dma_add(struct device *dev)
 {
 	s3c2410_dma_init();
 	s3c24xx_dma_order_set(&s3c2410_dma_order);
@@ -140,24 +140,28 @@ static int __init s3c2410_dma_add(struct sys_device *sysdev)
 }
 
 #if defined(CONFIG_CPU_S3C2410)
-static struct sysdev_driver s3c2410_dma_driver = {
-	.add	= s3c2410_dma_add,
+static struct subsys_interface s3c2410_dma_interface = {
+	.name		= "s3c2410_dma",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_dma_add,
 };
 
 static int __init s3c2410_dma_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_dma_driver);
+	return subsys_interface_register(&s3c2410_interface);
 }
 
 arch_initcall(s3c2410_dma_drvinit);
 
-static struct sysdev_driver s3c2410a_dma_driver = {
-	.add	= s3c2410_dma_add,
+static struct subsys_interface s3c2410a_dma_interface = {
+	.name		= "s3c2410a_dma",
+	.subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410_dma_add,
 };
 
 static int __init s3c2410a_dma_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass, &s3c2410a_dma_driver);
+	return subsys_interface_register(&s3c2410a_dma_interface);
 }
 
 arch_initcall(s3c2410a_dma_drvinit);
@@ -165,13 +169,15 @@ arch_initcall(s3c2410a_dma_drvinit);
 
 #if defined(CONFIG_CPU_S3C2442)
 /* S3C2442 DMA contains the same selection table as the S3C2410 */
-static struct sysdev_driver s3c2442_dma_driver = {
-	.add	= s3c2410_dma_add,
+static struct subsys_interface s3c2442_dma_interface = {
+	.name		= "s3c2442_dma",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2410_dma_add,
 };
 
 static int __init s3c2442_dma_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_dma_driver);
+	return subsys_interface_register(&s3c2442_dma_interface);
 }
 
 arch_initcall(s3c2442_dma_drvinit);
diff --git a/arch/arm/mach-s3c2410/include/mach/dma.h b/arch/arm/mach-s3c2410/include/mach/dma.h
index ae8e482b6427..acbdfecd4186 100644
--- a/arch/arm/mach-s3c2410/include/mach/dma.h
+++ b/arch/arm/mach-s3c2410/include/mach/dma.h
@@ -13,7 +13,7 @@
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H __FILE__
 
-#include <linux/sysdev.h>
+#include <linux/device.h>
 
 #define MAX_DMA_TRANSFER_SIZE   0x100000 /* Data Unit is half word  */
 
@@ -202,7 +202,7 @@ struct s3c2410_dma_chan {
 	struct s3c2410_dma_buf	*end;		/* end of queue */
 
 	/* system device */
-	struct sys_device	dev;
+	struct device	dev;
 };
 
 typedef unsigned long dma_device_t;
diff --git a/arch/arm/mach-s3c2410/include/mach/reset.h b/arch/arm/mach-s3c2410/include/mach/reset.h
deleted file mode 100644
index f8c9387b049d..000000000000
--- a/arch/arm/mach-s3c2410/include/mach/reset.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* arch/arm/mach-s3c2410/include/mach/reset.h
- *
- * Copyright (c) 2007 Simtec Electronics
- *	Ben Dooks <ben@simtec.co.uk>
- *	http://armlinux.simtec.co.uk/
- *
- * 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.
- *
- * S3C2410 CPU reset controls
-*/
-
-#ifndef __ASM_ARCH_RESET_H
-#define __ASM_ARCH_RESET_H __FILE__
-
-/* This allows the over-ride of the default reset code
-*/
-
-extern void (*s3c24xx_reset_hook)(void);
-
-#endif /* __ASM_ARCH_RESET_H */
diff --git a/arch/arm/mach-s3c2410/include/mach/system-reset.h b/arch/arm/mach-s3c2410/include/mach/system-reset.h
deleted file mode 100644
index 6faadcee7729..000000000000
--- a/arch/arm/mach-s3c2410/include/mach/system-reset.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* arch/arm/mach-s3c2410/include/mach/system-reset.h
- *
- * Copyright (c) 2008 Simtec Electronics
- *	Ben Dooks <ben@simtec.co.uk>
- *
- * S3C2410 - System define for arch_reset() function
- *
- * 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 <mach/hardware.h>
-#include <plat/watchdog-reset.h>
-
-extern void (*s3c24xx_reset_hook)(void);
-
-static void
-arch_reset(char mode, const char *cmd)
-{
-	if (mode == 's') {
-		cpu_reset(0);
-	}
-
-	if (s3c24xx_reset_hook)
-		s3c24xx_reset_hook();
-
-	arch_wdt_reset();
-
-	/* we'll take a jump through zero as a poor second */
-	cpu_reset(0);
-}
diff --git a/arch/arm/mach-s3c2410/include/mach/system.h b/arch/arm/mach-s3c2410/include/mach/system.h
index a8cbca6701e5..5e215c1a5c8f 100644
--- a/arch/arm/mach-s3c2410/include/mach/system.h
+++ b/arch/arm/mach-s3c2410/include/mach/system.h
@@ -15,12 +15,10 @@
 
 #include <mach/map.h>
 #include <mach/idle.h>
-#include <mach/reset.h>
 
 #include <mach/regs-clock.h>
 
 void (*s3c24xx_idle)(void);
-void (*s3c24xx_reset_hook)(void);
 
 void s3c24xx_default_idle(void)
 {
@@ -54,5 +52,3 @@ static void arch_idle(void)
 	else
 		s3c24xx_default_idle();
 }
-
-#include <mach/system-reset.h>
diff --git a/arch/arm/mach-s3c2410/include/mach/vmalloc.h b/arch/arm/mach-s3c2410/include/mach/vmalloc.h
deleted file mode 100644
index 7a311e8dddba..000000000000
--- a/arch/arm/mach-s3c2410/include/mach/vmalloc.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* arch/arm/mach-s3c2410/include/mach/vmalloc.h
- *
- * from arch/arm/mach-iop3xx/include/mach/vmalloc.h
- *
- * Copyright (c) 2003 Simtec Electronics <linux@simtec.co.uk>
- *		      http://www.simtec.co.uk/products/SWLINUX/
- *
- * 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.
- *
- * S3C2410 vmalloc definition
-*/
-
-#ifndef __ASM_ARCH_VMALLOC_H
-#define __ASM_ARCH_VMALLOC_H
-
-#define VMALLOC_END	0xF6000000UL
-
-#endif /* __ASM_ARCH_VMALLOC_H */
diff --git a/arch/arm/mach-s3c2410/mach-amlm5900.c b/arch/arm/mach-s3c2410/mach-amlm5900.c
index 79838942b0ac..4220cc60de3c 100644
--- a/arch/arm/mach-s3c2410/mach-amlm5900.c
+++ b/arch/arm/mach-s3c2410/mach-amlm5900.c
@@ -63,6 +63,8 @@
 #include <linux/mtd/map.h>
 #include <linux/mtd/physmap.h>
 
+#include "common.h"
+
 static struct resource amlm5900_nor_resource = {
 		.start = 0x00000000,
 		.end   = 0x01000000 - 1,
@@ -241,4 +243,5 @@ MACHINE_START(AML_M5900, "AML_M5900")
 	.init_irq	= s3c24xx_init_irq,
 	.init_machine	= amlm5900_init,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
index a20ae1ad4062..c6133c6ec18f 100644
--- a/arch/arm/mach-s3c2410/mach-bast.c
+++ b/arch/arm/mach-s3c2410/mach-bast.c
@@ -66,6 +66,7 @@
 
 #include "usb-simtec.h"
 #include "nor-simtec.h"
+#include "common.h"
 
 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
 
@@ -662,4 +663,5 @@ MACHINE_START(BAST, "Simtec-BAST")
 	.init_irq	= s3c24xx_init_irq,
 	.init_machine	= bast_init,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 05a7d16e59f5..41245a603981 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -18,7 +18,7 @@
 #include <linux/memblock.h>
 #include <linux/timer.h>
 #include <linux/init.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
@@ -70,6 +70,8 @@
 
 #include <sound/uda1380.h>
 
+#include "common.h"
+
 #define H1940_LATCH		((void __force __iomem *)0xF8000000)
 
 #define H1940_PA_LATCH		S3C2410_CS2
@@ -751,4 +753,5 @@ MACHINE_START(H1940, "IPAQ-H1940")
 	.init_irq	= h1940_init_irq,
 	.init_machine	= h1940_init,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c
index 1dc3e3234417..383d00ca8f60 100644
--- a/arch/arm/mach-s3c2410/mach-n30.c
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -51,6 +51,8 @@
 #include <plat/s3c2410.h>
 #include <plat/udc.h>
 
+#include "common.h"
+
 static struct map_desc n30_iodesc[] __initdata = {
 	/* nothing here yet */
 };
@@ -591,6 +593,7 @@ MACHINE_START(N30, "Acer-N30")
 	.init_machine	= n30_init,
 	.init_irq	= s3c24xx_init_irq,
 	.map_io		= n30_map_io,
+	.restart	= s3c2410_restart,
 MACHINE_END
 
 MACHINE_START(N35, "Acer-N35")
@@ -601,4 +604,5 @@ MACHINE_START(N35, "Acer-N35")
 	.init_machine	= n30_init,
 	.init_irq	= s3c24xx_init_irq,
 	.map_io		= n30_map_io,
+	.restart	= s3c2410_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2410/mach-otom.c b/arch/arm/mach-s3c2410/mach-otom.c
index f03f3fd9cec9..5f1e0eeb38a9 100644
--- a/arch/arm/mach-s3c2410/mach-otom.c
+++ b/arch/arm/mach-s3c2410/mach-otom.c
@@ -38,6 +38,8 @@
 #include <plat/iic.h>
 #include <plat/cpu.h>
 
+#include "common.h"
+
 static struct map_desc otom11_iodesc[] __initdata = {
   /* Device area */
 	{ (u32)OTOM_VA_CS8900A_BASE, OTOM_PA_CS8900A_BASE, SZ_16M, MT_DEVICE },
@@ -121,4 +123,5 @@ MACHINE_START(OTOM, "Nex Vision - Otom 1.1")
 	.init_machine	= otom11_init,
 	.init_irq	= s3c24xx_init_irq,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2410/mach-qt2410.c b/arch/arm/mach-s3c2410/mach-qt2410.c
index 451852156254..91c16d9d2459 100644
--- a/arch/arm/mach-s3c2410/mach-qt2410.c
+++ b/arch/arm/mach-s3c2410/mach-qt2410.c
@@ -28,7 +28,7 @@
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/serial_core.h>
 #include <linux/spi/spi.h>
@@ -62,6 +62,8 @@
 #include <plat/cpu.h>
 #include <plat/pm.h>
 
+#include "common.h"
+
 static struct map_desc qt2410_iodesc[] __initdata = {
 	{ 0xe0000000, __phys_to_pfn(S3C2410_CS3+0x01000000), SZ_1M, MT_DEVICE }
 };
@@ -350,6 +352,5 @@ MACHINE_START(QT2410, "QT2410")
 	.init_irq	= s3c24xx_init_irq,
 	.init_machine	= qt2410_machine_init,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
-
-
diff --git a/arch/arm/mach-s3c2410/mach-smdk2410.c b/arch/arm/mach-s3c2410/mach-smdk2410.c
index 99c9dfdb71c7..bdc27e772876 100644
--- a/arch/arm/mach-s3c2410/mach-smdk2410.c
+++ b/arch/arm/mach-s3c2410/mach-smdk2410.c
@@ -54,6 +54,8 @@
 
 #include <plat/common-smdk.h>
 
+#include "common.h"
+
 static struct map_desc smdk2410_iodesc[] __initdata = {
   /* nothing here yet */
 };
@@ -116,6 +118,5 @@ MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switc
 	.init_irq	= s3c24xx_init_irq,
 	.init_machine	= smdk2410_init,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
-
-
diff --git a/arch/arm/mach-s3c2410/mach-tct_hammer.c b/arch/arm/mach-s3c2410/mach-tct_hammer.c
index e0d0b6fb2800..1114666f0efb 100644
--- a/arch/arm/mach-s3c2410/mach-tct_hammer.c
+++ b/arch/arm/mach-s3c2410/mach-tct_hammer.c
@@ -54,6 +54,8 @@
 #include <linux/mtd/map.h>
 #include <linux/mtd/physmap.h>
 
+#include "common.h"
+
 static struct resource tct_hammer_nor_resource = {
 		.start = 0x00000000,
 		.end   = 0x01000000 - 1,
@@ -151,4 +153,5 @@ MACHINE_START(TCT_HAMMER, "TCT_HAMMER")
 	.init_irq	= s3c24xx_init_irq,
 	.init_machine	= tct_hammer_init,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c
index df47e8e90065..cc7032b5c65b 100644
--- a/arch/arm/mach-s3c2410/mach-vr1000.c
+++ b/arch/arm/mach-s3c2410/mach-vr1000.c
@@ -53,6 +53,7 @@
 
 #include "usb-simtec.h"
 #include "nor-simtec.h"
+#include "common.h"
 
 /* macros for virtual address mods for the io space entries */
 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
@@ -405,4 +406,5 @@ MACHINE_START(VR1000, "Thorcom-VR1000")
 	.init_machine	= vr1000_init,
 	.init_irq	= s3c24xx_init_irq,
 	.timer		= &s3c24xx_timer,
+	.restart	= s3c2410_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2410/pll.c b/arch/arm/mach-s3c2410/pll.c
index 8338865e11c0..c07438bfc99f 100644
--- a/arch/arm/mach-s3c2410/pll.c
+++ b/arch/arm/mach-s3c2410/pll.c
@@ -25,7 +25,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/list.h>
 #include <linux/clk.h>
 #include <linux/err.h>
@@ -66,30 +66,34 @@ static struct cpufreq_frequency_table pll_vals_12MHz[] = {
     { .frequency = 270000000, .index = PLLVAL(127, 1, 1),  },
 };
 
-static int s3c2410_plls_add(struct sys_device *dev)
+static int s3c2410_plls_add(struct device *dev)
 {
 	return s3c_plltab_register(pll_vals_12MHz, ARRAY_SIZE(pll_vals_12MHz));
 }
 
-static struct sysdev_driver s3c2410_plls_drv = {
-	.add	= s3c2410_plls_add,
+static struct subsys_interface s3c2410_plls_interface = {
+	.name		= "s3c2410_plls",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_plls_add,
 };
 
 static int __init s3c2410_pll_init(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_plls_drv);
+	return subsys_interface_register(&s3c2410_plls_interface);
 
 }
 
 arch_initcall(s3c2410_pll_init);
 
-static struct sysdev_driver s3c2410a_plls_drv = {
-	.add	= s3c2410_plls_add,
+static struct subsys_interface s3c2410a_plls_interface = {
+	.name		= "s3c2410a_plls",
+	.subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410_plls_add,
 };
 
 static int __init s3c2410a_pll_init(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass, &s3c2410a_plls_drv);
+	return subsys_interface_register(&s3c2410a_plls_interface);
 }
 
 arch_initcall(s3c2410a_pll_init);
diff --git a/arch/arm/mach-s3c2410/pm.c b/arch/arm/mach-s3c2410/pm.c
index 4728f9aa7df1..fda5385deff6 100644
--- a/arch/arm/mach-s3c2410/pm.c
+++ b/arch/arm/mach-s3c2410/pm.c
@@ -24,7 +24,7 @@
 #include <linux/suspend.h>
 #include <linux/errno.h>
 #include <linux/time.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/syscore_ops.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
@@ -111,7 +111,7 @@ struct syscore_ops s3c2410_pm_syscore_ops = {
 	.resume		= s3c2410_pm_resume,
 };
 
-static int s3c2410_pm_add(struct sys_device *dev)
+static int s3c2410_pm_add(struct device *dev)
 {
 	pm_cpu_prep = s3c2410_pm_prepare;
 	pm_cpu_sleep = s3c2410_cpu_suspend;
@@ -120,52 +120,60 @@ static int s3c2410_pm_add(struct sys_device *dev)
 }
 
 #if defined(CONFIG_CPU_S3C2410)
-static struct sysdev_driver s3c2410_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2410_pm_interface = {
+	.name		= "s3c2410_pm",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 /* register ourselves */
 
 static int __init s3c2410_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_pm_driver);
+	return subsys_interface_register(&s3c2410_pm_interface);
 }
 
 arch_initcall(s3c2410_pm_drvinit);
 
-static struct sysdev_driver s3c2410a_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2410a_pm_interface = {
+	.name		= "s3c2410a_pm",
+	.subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 static int __init s3c2410a_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass, &s3c2410a_pm_driver);
+	return subsys_interface_register(&s3c2410a_pm_interface);
 }
 
 arch_initcall(s3c2410a_pm_drvinit);
 #endif
 
 #if defined(CONFIG_CPU_S3C2440)
-static struct sysdev_driver s3c2440_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2440_pm_interface = {
+	.name		= "s3c2440_pm",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 static int __init s3c2440_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_pm_driver);
+	return subsys_interface_register(&s3c2440_pm_interface);
 }
 
 arch_initcall(s3c2440_pm_drvinit);
 #endif
 
 #if defined(CONFIG_CPU_S3C2442)
-static struct sysdev_driver s3c2442_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2442_pm_interface = {
+	.name		= "s3c2442_pm",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 static int __init s3c2442_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_pm_driver);
+	return subsys_interface_register(&s3c2442_pm_interface);
 }
 
 arch_initcall(s3c2442_pm_drvinit);
diff --git a/arch/arm/mach-s3c2410/s3c2410.c b/arch/arm/mach-s3c2410/s3c2410.c
index 3d7ebc557a72..eea559ec7a58 100644
--- a/arch/arm/mach-s3c2410/s3c2410.c
+++ b/arch/arm/mach-s3c2410/s3c2410.c
@@ -18,7 +18,7 @@
 #include <linux/init.h>
 #include <linux/gpio.h>
 #include <linux/clk.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/syscore_ops.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
@@ -42,6 +42,7 @@
 #include <plat/clock.h>
 #include <plat/pll.h>
 #include <plat/pm.h>
+#include <plat/watchdog-reset.h>
 
 #include <plat/gpio-core.h>
 #include <plat/gpio-cfg.h>
@@ -131,22 +132,24 @@ void __init s3c2410_init_clocks(int xtal)
 	s3c24xx_register_clock(&s3c2410_armclk);
 }
 
-struct sysdev_class s3c2410_sysclass = {
+struct bus_type s3c2410_subsys = {
 	.name = "s3c2410-core",
+	.dev_name = "s3c2410-core",
 };
 
 /* Note, we would have liked to name this s3c2410-core, but we cannot
- * register two sysdev_class with the same name.
+ * register two subsystems with the same name.
  */
-struct sysdev_class s3c2410a_sysclass = {
+struct bus_type s3c2410a_subsys = {
 	.name = "s3c2410a-core",
+	.dev_name = "s3c2410a-core",
 };
 
-static struct sys_device s3c2410_sysdev = {
-	.cls		= &s3c2410_sysclass,
+static struct device s3c2410_dev = {
+	.bus		= &s3c2410_subsys,
 };
 
-/* need to register class before we actually register the device, and
+/* need to register the subsystem before we actually register the device, and
  * we also need to ensure that it has been initialised before any of the
  * drivers even try to use it (even if not on an s3c2410 based system)
  * as a driver which may support both 2410 and 2440 may try and use it.
@@ -154,14 +157,14 @@ static struct sys_device s3c2410_sysdev = {
 
 static int __init s3c2410_core_init(void)
 {
-	return sysdev_class_register(&s3c2410_sysclass);
+	return subsys_system_register(&s3c2410_subsys, NULL);
 }
 
 core_initcall(s3c2410_core_init);
 
 static int __init s3c2410a_core_init(void)
 {
-	return sysdev_class_register(&s3c2410a_sysclass);
+	return subsys_system_register(&s3c2410a_subsys, NULL);
 }
 
 core_initcall(s3c2410a_core_init);
@@ -175,11 +178,23 @@ int __init s3c2410_init(void)
 #endif
 	register_syscore_ops(&s3c24xx_irq_syscore_ops);
 
-	return sysdev_register(&s3c2410_sysdev);
+	return device_register(&s3c2410_dev);
 }
 
 int __init s3c2410a_init(void)
 {
-	s3c2410_sysdev.cls = &s3c2410a_sysclass;
+	s3c2410_dev.bus = &s3c2410a_subsys;
 	return s3c2410_init();
 }
+
+void s3c2410_restart(char mode, const char *cmd)
+{
+	if (mode == 's') {
+		soft_restart(0);
+	}
+
+	arch_wdt_reset();
+
+	/* we'll take a jump through zero as a poor second */
+	soft_restart(0);
+}