diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c
index 1794131aeacb59ab668c6a8562fc52bedd87a795..ca3b3206e6f86d999d789fc05947a44bd38be314 100644
--- a/arch/arm/mach-s5p6440/cpu.c
+++ b/arch/arm/mach-s5p6440/cpu.c
@@ -88,7 +88,7 @@ void __init s5p6440_init_irq(void)
 	s5p_init_irq(vic, ARRAY_SIZE(vic));
 }
 
-static struct sysdev_class s5p6440_sysclass = {
+struct sysdev_class s5p6440_sysclass = {
 	.name	= "s5p6440-core",
 };
 
diff --git a/arch/arm/mach-s5p6442/cpu.c b/arch/arm/mach-s5p6442/cpu.c
index bc2524df89b36da7aa0f1fe6b4478f16c645e7be..a48fb553fd01cf5d42e1ab590146d7cad1e7680f 100644
--- a/arch/arm/mach-s5p6442/cpu.c
+++ b/arch/arm/mach-s5p6442/cpu.c
@@ -95,7 +95,7 @@ void __init s5p6442_init_irq(void)
 	s5p_init_irq(vic, ARRAY_SIZE(vic));
 }
 
-static struct sysdev_class s5p6442_sysclass = {
+struct sysdev_class s5p6442_sysclass = {
 	.name	= "s5p6442-core",
 };
 
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 8ebf51c52a01931a6e62e0adc177d4c77544eeb6..0acbdb34b560450241886c54c27095203d5a214a 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -12,7 +12,7 @@ obj-				:=
 
 # Core support for S5PV210 system
 
-obj-$(CONFIG_CPU_S5PV210)	+= cpu.o init.o clock.o
+obj-$(CONFIG_CPU_S5PV210)	+= cpu.o init.o clock.o gpiolib.o
 
 # machine support
 
diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c
index 0e0f8fde2aa637ad470f76092230cf7fceb03c9b..2b776eb5d150367dea5a20ffae96c6a6c516e354 100644
--- a/arch/arm/mach-s5pv210/cpu.c
+++ b/arch/arm/mach-s5pv210/cpu.c
@@ -100,7 +100,7 @@ void __init s5pv210_init_irq(void)
 	s5p_init_irq(vic, ARRAY_SIZE(vic));
 }
 
-static struct sysdev_class s5pv210_sysclass = {
+struct sysdev_class s5pv210_sysclass = {
 	.name	= "s5pv210-core",
 };
 
diff --git a/arch/arm/mach-s5pv210/gpiolib.c b/arch/arm/mach-s5pv210/gpiolib.c
new file mode 100644
index 0000000000000000000000000000000000000000..9ea8972e023d97d10550f7936e291103c1c0655d
--- /dev/null
+++ b/arch/arm/mach-s5pv210/gpiolib.c
@@ -0,0 +1,261 @@
+/* linux/arch/arm/mach-s5pv210/gpiolib.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5PV210 - GPIOlib support
+ *
+ * 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/irq.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+#include <mach/map.h>
+
+static struct s3c_gpio_cfg gpio_cfg = {
+	.set_config	= s3c_gpio_setcfg_s3c64xx_4bit,
+	.set_pull	= s3c_gpio_setpull_updown,
+	.get_pull	= s3c_gpio_getpull_updown,
+};
+
+static struct s3c_gpio_cfg gpio_cfg_noint = {
+	.set_config	= s3c_gpio_setcfg_s3c64xx_4bit,
+	.set_pull	= s3c_gpio_setpull_updown,
+	.get_pull	= s3c_gpio_getpull_updown,
+};
+
+/* GPIO bank's base address given the index of the bank in the
+ * list of all gpio banks.
+ */
+#define S5PV210_BANK_BASE(bank_nr)	(S5P_VA_GPIO + ((bank_nr) * 0x20))
+
+/*
+ * Following are the gpio banks in v210.
+ *
+ * The 'config' member when left to NULL, is initialized to the default
+ * structure gpio_cfg in the init function below.
+ *
+ * The 'base' member is also initialized in the init function below.
+ * Note: The initialization of 'base' member of s3c_gpio_chip structure
+ * uses the above macro and depends on the banks being listed in order here.
+ */
+static struct s3c_gpio_chip s5pv210_gpio_4bit[] = {
+	{
+		.chip	= {
+			.base	= S5PV210_GPA0(0),
+			.ngpio	= S5PV210_GPIO_A0_NR,
+			.label	= "GPA0",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPA1(0),
+			.ngpio	= S5PV210_GPIO_A1_NR,
+			.label	= "GPA1",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPB(0),
+			.ngpio	= S5PV210_GPIO_B_NR,
+			.label	= "GPB",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPC0(0),
+			.ngpio	= S5PV210_GPIO_C0_NR,
+			.label	= "GPC0",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPC1(0),
+			.ngpio	= S5PV210_GPIO_C1_NR,
+			.label	= "GPC1",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPD0(0),
+			.ngpio	= S5PV210_GPIO_D0_NR,
+			.label	= "GPD0",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPD1(0),
+			.ngpio	= S5PV210_GPIO_D1_NR,
+			.label	= "GPD1",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPE0(0),
+			.ngpio	= S5PV210_GPIO_E0_NR,
+			.label	= "GPE0",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPE1(0),
+			.ngpio	= S5PV210_GPIO_E1_NR,
+			.label	= "GPE1",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPF0(0),
+			.ngpio	= S5PV210_GPIO_F0_NR,
+			.label	= "GPF0",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPF1(0),
+			.ngpio	= S5PV210_GPIO_F1_NR,
+			.label	= "GPF1",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPF2(0),
+			.ngpio	= S5PV210_GPIO_F2_NR,
+			.label	= "GPF2",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPF3(0),
+			.ngpio	= S5PV210_GPIO_F3_NR,
+			.label	= "GPF3",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPG0(0),
+			.ngpio	= S5PV210_GPIO_G0_NR,
+			.label	= "GPG0",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPG1(0),
+			.ngpio	= S5PV210_GPIO_G1_NR,
+			.label	= "GPG1",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPG2(0),
+			.ngpio	= S5PV210_GPIO_G2_NR,
+			.label	= "GPG2",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPG3(0),
+			.ngpio	= S5PV210_GPIO_G3_NR,
+			.label	= "GPG3",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPI(0),
+			.ngpio	= S5PV210_GPIO_I_NR,
+			.label	= "GPI",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPJ0(0),
+			.ngpio	= S5PV210_GPIO_J0_NR,
+			.label	= "GPJ0",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPJ1(0),
+			.ngpio	= S5PV210_GPIO_J1_NR,
+			.label	= "GPJ1",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPJ2(0),
+			.ngpio	= S5PV210_GPIO_J2_NR,
+			.label	= "GPJ2",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPJ3(0),
+			.ngpio	= S5PV210_GPIO_J3_NR,
+			.label	= "GPJ3",
+		},
+	}, {
+		.chip	= {
+			.base	= S5PV210_GPJ4(0),
+			.ngpio	= S5PV210_GPIO_J4_NR,
+			.label	= "GPJ4",
+		},
+	}, {
+		.config	= &gpio_cfg_noint,
+		.chip	= {
+			.base	= S5PV210_MP01(0),
+			.ngpio	= S5PV210_GPIO_MP01_NR,
+			.label	= "MP01",
+		},
+	}, {
+		.config	= &gpio_cfg_noint,
+		.chip	= {
+			.base	= S5PV210_MP02(0),
+			.ngpio	= S5PV210_GPIO_MP02_NR,
+			.label	= "MP02",
+		},
+	}, {
+		.config	= &gpio_cfg_noint,
+		.chip	= {
+			.base	= S5PV210_MP03(0),
+			.ngpio	= S5PV210_GPIO_MP03_NR,
+			.label	= "MP03",
+		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC00),
+		.config	= &gpio_cfg_noint,
+		.chip	= {
+			.base	= S5PV210_GPH0(0),
+			.ngpio	= S5PV210_GPIO_H0_NR,
+			.label	= "GPH0",
+		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC20),
+		.config	= &gpio_cfg_noint,
+		.chip	= {
+			.base	= S5PV210_GPH1(0),
+			.ngpio	= S5PV210_GPIO_H1_NR,
+			.label	= "GPH1",
+		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC40),
+		.config	= &gpio_cfg_noint,
+		.chip	= {
+			.base	= S5PV210_GPH2(0),
+			.ngpio	= S5PV210_GPIO_H2_NR,
+			.label	= "GPH2",
+		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC60),
+		.config	= &gpio_cfg_noint,
+		.chip	= {
+			.base	= S5PV210_GPH3(0),
+			.ngpio	= S5PV210_GPIO_H3_NR,
+			.label	= "GPH3",
+		},
+	},
+};
+
+static __init int s5pv210_gpiolib_init(void)
+{
+	struct s3c_gpio_chip *chip = s5pv210_gpio_4bit;
+	int nr_chips = ARRAY_SIZE(s5pv210_gpio_4bit);
+	int i = 0;
+
+	for (i = 0; i < nr_chips; i++, chip++) {
+		if (chip->config == NULL)
+			chip->config = &gpio_cfg;
+		if (chip->base == NULL)
+			chip->base = S5PV210_BANK_BASE(i);
+	}
+
+	samsung_gpiolib_add_4bit_chips(s5pv210_gpio_4bit, nr_chips);
+
+	return 0;
+}
+core_initcall(s5pv210_gpiolib_init);
diff --git a/arch/arm/mach-s5pv210/include/mach/gpio.h b/arch/arm/mach-s5pv210/include/mach/gpio.h
index 533b020e21e9511ce558ee50a450e2407f4a0caa..d6461ba2b71d474d51a6319d56d6df31b407acb6 100644
--- a/arch/arm/mach-s5pv210/include/mach/gpio.h
+++ b/arch/arm/mach-s5pv210/include/mach/gpio.h
@@ -18,6 +18,8 @@
 #define gpio_cansleep	__gpio_cansleep
 #define gpio_to_irq	__gpio_to_irq
 
+/* Practically, GPIO banks upto MP03 are the configurable gpio banks */
+
 /* GPIO bank sizes */
 #define S5PV210_GPIO_A0_NR	(8)
 #define S5PV210_GPIO_A1_NR	(4)
@@ -47,6 +49,10 @@
 #define S5PV210_GPIO_J3_NR	(8)
 #define S5PV210_GPIO_J4_NR	(5)
 
+#define S5PV210_GPIO_MP01_NR	(8)
+#define S5PV210_GPIO_MP02_NR	(4)
+#define S5PV210_GPIO_MP03_NR	(8)
+
 /* GPIO bank numbers */
 
 /* CONFIG_S3C_GPIO_SPACE allows the user to select extra
@@ -85,6 +91,9 @@ enum s5p_gpio_number {
 	S5PV210_GPIO_J2_START	= S5PV210_GPIO_NEXT(S5PV210_GPIO_J1),
 	S5PV210_GPIO_J3_START	= S5PV210_GPIO_NEXT(S5PV210_GPIO_J2),
 	S5PV210_GPIO_J4_START	= S5PV210_GPIO_NEXT(S5PV210_GPIO_J3),
+	S5PV210_GPIO_MP01_START	= S5PV210_GPIO_NEXT(S5PV210_GPIO_J4),
+	S5PV210_GPIO_MP02_START	= S5PV210_GPIO_NEXT(S5PV210_GPIO_MP01),
+	S5PV210_GPIO_MP03_START	= S5PV210_GPIO_NEXT(S5PV210_GPIO_MP02),
 };
 
 /* S5PV210 GPIO number definitions */
@@ -115,13 +124,16 @@ enum s5p_gpio_number {
 #define S5PV210_GPJ2(_nr)	(S5PV210_GPIO_J2_START + (_nr))
 #define S5PV210_GPJ3(_nr)	(S5PV210_GPIO_J3_START + (_nr))
 #define S5PV210_GPJ4(_nr)	(S5PV210_GPIO_J4_START + (_nr))
+#define S5PV210_MP01(_nr)	(S5PV210_GPIO_MP01_START + (_nr))
+#define S5PV210_MP02(_nr)	(S5PV210_GPIO_MP02_START + (_nr))
+#define S5PV210_MP03(_nr)	(S5PV210_GPIO_MP03_START + (_nr))
 
 /* the end of the S5PV210 specific gpios */
-#define S5PV210_GPIO_END	(S5PV210_GPJ4(S5PV210_GPIO_J4_NR) + 1)
+#define S5PV210_GPIO_END	(S5PV210_MP03(S5PV210_GPIO_MP03_NR) + 1)
 #define S3C_GPIO_END		S5PV210_GPIO_END
 
-/* define the number of gpios we need to the one after the GPJ4() range */
-#define ARCH_NR_GPIOS		(S5PV210_GPJ4(S5PV210_GPIO_J4_NR) +	\
+/* define the number of gpios we need to the one after the MP03() range */
+#define ARCH_NR_GPIOS		(S5PV210_MP03(S5PV210_GPIO_MP03_NR) +	\
 				 CONFIG_SAMSUNG_GPIO_EXTRA + 1)
 
 #include <asm-generic/gpio.h>
diff --git a/arch/arm/plat-s5p/include/plat/irqs.h b/arch/arm/plat-s5p/include/plat/irqs.h
index 42e757f2e40ca972402d8bb53f000edc745fa067..9ff3d718be39f1b15b30b8c60361cbd8215f7699 100644
--- a/arch/arm/plat-s5p/include/plat/irqs.h
+++ b/arch/arm/plat-s5p/include/plat/irqs.h
@@ -79,7 +79,7 @@
 #define S5P_IRQ_VIC2(x)		(S5P_VIC2_BASE + (x))
 #define S5P_IRQ_VIC3(x)		(S5P_VIC3_BASE + (x))
 
-#define S5P_TIMER_IRQ(x)	S5P_IRQ(11 + (x))
+#define S5P_TIMER_IRQ(x)	(11 + (x))
 
 #define IRQ_TIMER0		S5P_TIMER_IRQ(0)
 #define IRQ_TIMER1		S5P_TIMER_IRQ(1)
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index d316b4a579f4811413e608348ac9699f791eae54..c54f318991b6e1ba84ff8b0e9b5daf6bbee8b7f6 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -78,6 +78,9 @@ extern struct sysdev_class s3c2442_sysclass;
 extern struct sysdev_class s3c2443_sysclass;
 extern struct sysdev_class s3c6410_sysclass;
 extern struct sysdev_class s3c64xx_sysclass;
+extern struct sysdev_class s5p6440_sysclass;
+extern struct sysdev_class s5p6442_sysclass;
+extern struct sysdev_class s5pv210_sysclass;
 
 extern void (*s5pc1xx_idle)(void);