Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable

Conflicts:
	arch/arm/mach-s3c64xx/dev-audio.c

20 files changed, 306 insertions, 675 deletions

diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index 77ae4bfb74b..b8fbf2fcba6 100644
--- a/arch/arm/mach-s5pc100/Kconfig
+++ b/arch/arm/mach-s5pc100/Kconfig
@@ -9,7 +9,6 @@ if ARCH_S5PC100
 
 config CPU_S5PC100
 	bool
-	select PLAT_S5P
 	select S5P_EXT_INT
 	select S3C_PL330_DMA
 	help
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile
index a021ed1fb4b..eecab57d2e5 100644
--- a/arch/arm/mach-s5pc100/Makefile
+++ b/arch/arm/mach-s5pc100/Makefile
@@ -11,7 +11,7 @@ obj-				:=
 
 # Core support for S5PC100 system
 
-obj-$(CONFIG_CPU_S5PC100)	+= cpu.o init.o clock.o gpiolib.o irq-gpio.o
+obj-$(CONFIG_CPU_S5PC100)	+= cpu.o init.o clock.o gpiolib.o
 obj-$(CONFIG_CPU_S5PC100)	+= setup-i2c0.o
 obj-$(CONFIG_CPU_S5PC100)	+= dma.o
 
diff --git a/arch/arm/mach-s5pc100/clock.c b/arch/arm/mach-s5pc100/clock.c
index 084abd13b0a..2d4a761a516 100644
--- a/arch/arm/mach-s5pc100/clock.c
+++ b/arch/arm/mach-s5pc100/clock.c
@@ -273,24 +273,6 @@ static struct clksrc_clk clk_div_hdmi = {
 	.reg_div = { .reg = S5P_CLK_DIV3, .shift = 28, .size = 4 },
 };
 
-static int s5pc100_epll_enable(struct clk *clk, int enable)
-{
-	unsigned int ctrlbit = clk->ctrlbit;
-	unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit;
-
-	if (enable)
-		__raw_writel(epll_con | ctrlbit, S5P_EPLL_CON);
-	else
-		__raw_writel(epll_con, S5P_EPLL_CON);
-
-	return 0;
-}
-
-static unsigned long s5pc100_epll_get_rate(struct clk *clk)
-{
-	return clk->rate;
-}
-
 static u32 epll_div[][4] = {
 	{ 32750000,	131, 3, 4 },
 	{ 32768000,	131, 3, 4 },
@@ -341,13 +323,16 @@ static int s5pc100_epll_set_rate(struct clk *clk, unsigned long rate)
 
 	__raw_writel(epll_con, S5P_EPLL_CON);
 
+	printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
+			clk->rate, rate);
+
 	clk->rate = rate;
 
 	return 0;
 }
 
 static struct clk_ops s5pc100_epll_ops = {
-	.get_rate = s5pc100_epll_get_rate,
+	.get_rate = s5p_epll_get_rate,
 	.set_rate = s5pc100_epll_set_rate,
 };
 
@@ -691,55 +676,55 @@ static struct clk init_clocks_disable[] = {
 	}, {
 		.name		= "iis",
 		.id		= 0,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 0),
 	}, {
 		.name		= "iis",
 		.id		= 1,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 1),
 	}, {
 		.name		= "iis",
 		.id		= 2,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 2),
 	}, {
 		.name		= "ac97",
 		.id		= -1,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 3),
 	}, {
 		.name		= "pcm",
 		.id		= 0,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 4),
 	}, {
 		.name		= "pcm",
 		.id		= 1,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 5),
 	}, {
 		.name		= "spdif",
 		.id		= -1,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 6),
 	}, {
 		.name		= "adc",
 		.id		= -1,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 7),
 	}, {
 		.name		= "keypad",
 		.id		= -1,
-		.parent		= &clk_div_d1_bus.clk,
+		.parent		= &clk_div_pclkd1.clk,
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 8),
 	}, {
@@ -848,6 +833,18 @@ struct clksrc_sources clk_src_group3 = {
 	.nr_sources	= ARRAY_SIZE(clk_src_group3_list),
 };
 
+static struct clksrc_clk clk_sclk_audio0 = {
+	.clk	= {
+		.name		= "sclk_audio",
+		.id		= 0,
+		.ctrlbit	= (1 << 8),
+		.enable		= s5pc100_sclk1_ctrl,
+	},
+	.sources = &clk_src_group3,
+	.reg_src = { .reg = S5P_CLK_SRC3, .shift = 12, .size = 3 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 12, .size = 4 },
+};
+
 static struct clk *clk_src_group4_list[] = {
 	[0] = &clk_mout_epll.clk,
 	[1] = &clk_div_mpll.clk,
@@ -862,6 +859,18 @@ struct clksrc_sources clk_src_group4 = {
 	.nr_sources	= ARRAY_SIZE(clk_src_group4_list),
 };
 
+static struct clksrc_clk clk_sclk_audio1 = {
+	.clk	= {
+		.name		= "sclk_audio",
+		.id		= 1,
+		.ctrlbit	= (1 << 9),
+		.enable		= s5pc100_sclk1_ctrl,
+	},
+	.sources = &clk_src_group4,
+	.reg_src = { .reg = S5P_CLK_SRC3, .shift = 16, .size = 3 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 16, .size = 4 },
+};
+
 static struct clk *clk_src_group5_list[] = {
 	[0] = &clk_mout_epll.clk,
 	[1] = &clk_div_mpll.clk,
@@ -875,6 +884,18 @@ struct clksrc_sources clk_src_group5 = {
 	.nr_sources	= ARRAY_SIZE(clk_src_group5_list),
 };
 
+static struct clksrc_clk clk_sclk_audio2 = {
+	.clk	= {
+		.name		= "sclk_audio",
+		.id		= 2,
+		.ctrlbit	= (1 << 10),
+		.enable		= s5pc100_sclk1_ctrl,
+	},
+	.sources = &clk_src_group5,
+	.reg_src = { .reg = S5P_CLK_SRC3, .shift = 20, .size = 3 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 20, .size = 4 },
+};
+
 static struct clk *clk_src_group6_list[] = {
 	[0] = &s5p_clk_27m,
 	[1] = &clk_vclk54m,
@@ -944,6 +965,64 @@ struct clksrc_sources clk_src_pwi = {
 	.nr_sources	= ARRAY_SIZE(clk_src_pwi_list),
 };
 
+static struct clk *clk_sclk_spdif_list[] = {
+	[0] = &clk_sclk_audio0.clk,
+	[1] = &clk_sclk_audio1.clk,
+	[2] = &clk_sclk_audio2.clk,
+};
+
+struct clksrc_sources clk_src_sclk_spdif = {
+	.sources	= clk_sclk_spdif_list,
+	.nr_sources	= ARRAY_SIZE(clk_sclk_spdif_list),
+};
+
+static int s5pc100_spdif_set_rate(struct clk *clk, unsigned long rate)
+{
+	struct clk *pclk;
+	int ret;
+
+	pclk = clk_get_parent(clk);
+	if (IS_ERR(pclk))
+		return -EINVAL;
+
+	ret = pclk->ops->set_rate(pclk, rate);
+	clk_put(pclk);
+
+	return ret;
+}
+
+static unsigned long s5pc100_spdif_get_rate(struct clk *clk)
+{
+	struct clk *pclk;
+	int rate;
+
+	pclk = clk_get_parent(clk);
+	if (IS_ERR(pclk))
+		return -EINVAL;
+
+	rate = pclk->ops->get_rate(clk);
+	clk_put(pclk);
+
+	return rate;
+}
+
+static struct clk_ops s5pc100_sclk_spdif_ops = {
+	.set_rate	= s5pc100_spdif_set_rate,
+	.get_rate	= s5pc100_spdif_get_rate,
+};
+
+static struct clksrc_clk clk_sclk_spdif = {
+	.clk	= {
+		.name		= "sclk_spdif",
+		.id		= -1,
+		.ctrlbit	= (1 << 11),
+		.enable		= s5pc100_sclk1_ctrl,
+		.ops		= &s5pc100_sclk_spdif_ops,
+	},
+	.sources = &clk_src_sclk_spdif,
+	.reg_src = { .reg = S5P_CLK_SRC3, .shift = 24, .size = 2 },
+};
+
 static struct clksrc_clk clksrcs[] = {
 	{
 		.clk	= {
@@ -1001,39 +1080,6 @@ static struct clksrc_clk clksrcs[] = {
 		.reg_src = { .reg = S5P_CLK_SRC2, .shift = 28, .size = 2 },
 	}, {
 		.clk	= {
-			.name		= "sclk_audio",
-			.id		= 0,
-			.ctrlbit	= (1 << 8),
-			.enable		= s5pc100_sclk1_ctrl,
-
-		},
-		.sources = &clk_src_group3,
-		.reg_src = { .reg = S5P_CLK_SRC3, .shift = 12, .size = 3 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 12, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_audio",
-			.id		= 1,
-			.ctrlbit	= (1 << 9),
-			.enable		= s5pc100_sclk1_ctrl,
-
-		},
-		.sources = &clk_src_group4,
-		.reg_src = { .reg = S5P_CLK_SRC3, .shift = 16, .size = 3 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 16, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_audio",
-			.id		= 2,
-			.ctrlbit	= (1 << 10),
-			.enable		= s5pc100_sclk1_ctrl,
-
-		},
-		.sources = &clk_src_group5,
-		.reg_src = { .reg = S5P_CLK_SRC3, .shift = 20, .size = 3 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 20, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "sclk_lcd",
 			.id		= -1,
 			.ctrlbit	= (1 << 0),
@@ -1179,6 +1225,10 @@ static struct clksrc_clk *sysclks[] = {
 	&clk_div_pclkd1,
 	&clk_div_cam,
 	&clk_div_hdmi,
+	&clk_sclk_audio0,
+	&clk_sclk_audio1,
+	&clk_sclk_audio2,
+	&clk_sclk_spdif,
 };
 
 void __init_or_cpufreq s5pc100_setup_clocks(void)
@@ -1196,7 +1246,7 @@ void __init_or_cpufreq s5pc100_setup_clocks(void)
 	unsigned int ptr;
 
 	/* Set S5PC100 functions for clk_fout_epll */
-	clk_fout_epll.enable = s5pc100_epll_enable;
+	clk_fout_epll.enable = s5p_epll_enable;
 	clk_fout_epll.ops = &s5pc100_epll_ops;
 
 	printk(KERN_DEBUG "%s: registering clocks\n", __func__);
diff --git a/arch/arm/mach-s5pc100/dev-audio.c b/arch/arm/mach-s5pc100/dev-audio.c
index a699ed6acc2..564e195ec49 100644
--- a/arch/arm/mach-s5pc100/dev-audio.c
+++ b/arch/arm/mach-s5pc100/dev-audio.c
@@ -24,19 +24,11 @@ static int s5pc100_cfg_i2s(struct platform_device *pdev)
 	/* configure GPIO for i2s port */
 	switch (pdev->id) {
 	case 1:
-		s3c_gpio_cfgpin(S5PC100_GPC(0), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPC(1), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPC(2), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPC(3), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPC(4), S3C_GPIO_SFN(2));
+		s3c_gpio_cfgpin_range(S5PC100_GPC(0), 5, S3C_GPIO_SFN(2));
 		break;
 
 	case 2:
-		s3c_gpio_cfgpin(S5PC100_GPG3(0), S3C_GPIO_SFN(4));
-		s3c_gpio_cfgpin(S5PC100_GPG3(1), S3C_GPIO_SFN(4));
-		s3c_gpio_cfgpin(S5PC100_GPG3(2), S3C_GPIO_SFN(4));
-		s3c_gpio_cfgpin(S5PC100_GPG3(3), S3C_GPIO_SFN(4));
-		s3c_gpio_cfgpin(S5PC100_GPG3(4), S3C_GPIO_SFN(4));
+		s3c_gpio_cfgpin_range(S5PC100_GPG3(0), 5, S3C_GPIO_SFN(4));
 		break;
 
 	case -1: /* Dedicated pins */
@@ -144,19 +136,11 @@ static int s5pc100_pcm_cfg_gpio(struct platform_device *pdev)
 {
 	switch (pdev->id) {
 	case 0:
-		s3c_gpio_cfgpin(S5PC100_GPG3(0), S3C_GPIO_SFN(5));
-		s3c_gpio_cfgpin(S5PC100_GPG3(1), S3C_GPIO_SFN(5));
-		s3c_gpio_cfgpin(S5PC100_GPG3(2), S3C_GPIO_SFN(5));
-		s3c_gpio_cfgpin(S5PC100_GPG3(3), S3C_GPIO_SFN(5));
-		s3c_gpio_cfgpin(S5PC100_GPG3(4), S3C_GPIO_SFN(5));
+		s3c_gpio_cfgpin_range(S5PC100_GPG3(0), 5, S3C_GPIO_SFN(5));
 		break;
 
 	case 1:
-		s3c_gpio_cfgpin(S5PC100_GPC(0), S3C_GPIO_SFN(3));
-		s3c_gpio_cfgpin(S5PC100_GPC(1), S3C_GPIO_SFN(3));
-		s3c_gpio_cfgpin(S5PC100_GPC(2), S3C_GPIO_SFN(3));
-		s3c_gpio_cfgpin(S5PC100_GPC(3), S3C_GPIO_SFN(3));
-		s3c_gpio_cfgpin(S5PC100_GPC(4), S3C_GPIO_SFN(3));
+		s3c_gpio_cfgpin_range(S5PC100_GPC(0), 5, S3C_GPIO_SFN(3));
 		break;
 
 	default:
@@ -231,13 +215,7 @@ struct platform_device s5pc100_device_pcm1 = {
 
 static int s5pc100_ac97_cfg_gpio(struct platform_device *pdev)
 {
-	s3c_gpio_cfgpin(S5PC100_GPC(0), S3C_GPIO_SFN(4));
-	s3c_gpio_cfgpin(S5PC100_GPC(1), S3C_GPIO_SFN(4));
-	s3c_gpio_cfgpin(S5PC100_GPC(2), S3C_GPIO_SFN(4));
-	s3c_gpio_cfgpin(S5PC100_GPC(3), S3C_GPIO_SFN(4));
-	s3c_gpio_cfgpin(S5PC100_GPC(4), S3C_GPIO_SFN(4));
-
-	return 0;
+	return s3c_gpio_cfgpin_range(S5PC100_GPC(0), 5, S3C_GPIO_SFN(4));
 }
 
 static struct resource s5pc100_ac97_resource[] = {
@@ -285,3 +263,57 @@ struct platform_device s5pc100_device_ac97 = {
 		.coherent_dma_mask = DMA_BIT_MASK(32),
 	},
 };
+
+/* S/PDIF Controller platform_device */
+static int s5pc100_spdif_cfg_gpd(struct platform_device *pdev)
+{
+	s3c_gpio_cfgpin_range(S5PC100_GPD(5), 2, S3C_GPIO_SFN(3));
+
+	return 0;
+}
+
+static int s5pc100_spdif_cfg_gpg3(struct platform_device *pdev)
+{
+	s3c_gpio_cfgpin_range(S5PC100_GPG3(5), 2, S3C_GPIO_SFN(3));
+
+	return 0;
+}
+
+static struct resource s5pc100_spdif_resource[] = {
+	[0] = {
+		.start	= S5PC100_PA_SPDIF,
+		.end	= S5PC100_PA_SPDIF + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= DMACH_SPDIF,
+		.end	= DMACH_SPDIF,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct s3c_audio_pdata s5p_spdif_pdata = {
+	.cfg_gpio = s5pc100_spdif_cfg_gpd,
+};
+
+static u64 s5pc100_spdif_dmamask = DMA_BIT_MASK(32);
+
+struct platform_device s5pc100_device_spdif = {
+	.name		= "samsung-spdif",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(s5pc100_spdif_resource),
+	.resource	= s5pc100_spdif_resource,
+	.dev = {
+		.platform_data = &s5p_spdif_pdata,
+		.dma_mask = &s5pc100_spdif_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+void __init s5pc100_spdif_setup_gpio(int gpio)
+{
+	if (gpio == S5PC100_SPDIF_GPD)
+		s5p_spdif_pdata.cfg_gpio = s5pc100_spdif_cfg_gpd;
+	else
+		s5p_spdif_pdata.cfg_gpio = s5pc100_spdif_cfg_gpg3;
+}
diff --git a/arch/arm/mach-s5pc100/dev-spi.c b/arch/arm/mach-s5pc100/dev-spi.c
index a0ef7c302c1..57b19794d9b 100644
--- a/arch/arm/mach-s5pc100/dev-spi.c
+++ b/arch/arm/mach-s5pc100/dev-spi.c
@@ -38,30 +38,20 @@ static int s5pc100_spi_cfg_gpio(struct platform_device *pdev)
 {
 	switch (pdev->id) {
 	case 0:
-		s3c_gpio_cfgpin(S5PC100_GPB(0), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPB(1), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPB(2), S3C_GPIO_SFN(2));
-		s3c_gpio_setpull(S5PC100_GPB(0), S3C_GPIO_PULL_UP);
-		s3c_gpio_setpull(S5PC100_GPB(1), S3C_GPIO_PULL_UP);
-		s3c_gpio_setpull(S5PC100_GPB(2), S3C_GPIO_PULL_UP);
+		s3c_gpio_cfgall_range(S5PC100_GPB(0), 3,
+				      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
 		break;
 
 	case 1:
-		s3c_gpio_cfgpin(S5PC100_GPB(4), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPB(5), S3C_GPIO_SFN(2));
-		s3c_gpio_cfgpin(S5PC100_GPB(6), S3C_GPIO_SFN(2));
-		s3c_gpio_setpull(S5PC100_GPB(4), S3C_GPIO_PULL_UP);
-		s3c_gpio_setpull(S5PC100_GPB(5), S3C_GPIO_PULL_UP);
-		s3c_gpio_setpull(S5PC100_GPB(6), S3C_GPIO_PULL_UP);
+		s3c_gpio_cfgall_range(S5PC100_GPB(4), 3,
+				      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
 		break;
 
 	case 2:
 		s3c_gpio_cfgpin(S5PC100_GPG3(0), S3C_GPIO_SFN(3));
-		s3c_gpio_cfgpin(S5PC100_GPG3(2), S3C_GPIO_SFN(3));
-		s3c_gpio_cfgpin(S5PC100_GPG3(3), S3C_GPIO_SFN(3));
 		s3c_gpio_setpull(S5PC100_GPG3(0), S3C_GPIO_PULL_UP);
-		s3c_gpio_setpull(S5PC100_GPG3(2), S3C_GPIO_PULL_UP);
-		s3c_gpio_setpull(S5PC100_GPG3(3), S3C_GPIO_PULL_UP);
+		s3c_gpio_cfgall_range(S5PC100_GPB(2), 2,
+				      S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
 		break;
 
 	default:
diff --git a/arch/arm/mach-s5pc100/dma.c b/arch/arm/mach-s5pc100/dma.c
index 0f5517571e2..bf4cd0fb97c 100644
--- a/arch/arm/mach-s5pc100/dma.c
+++ b/arch/arm/mach-s5pc100/dma.c
@@ -81,7 +81,7 @@ static struct s3c_pl330_platdata s5pc100_pdma0_pdata = {
 
 static struct platform_device s5pc100_device_pdma0 = {
 	.name		= "s3c-pl330",
-	.id		= 1,
+	.id		= 0,
 	.num_resources	= ARRAY_SIZE(s5pc100_pdma0_resource),
 	.resource	= s5pc100_pdma0_resource,
 	.dev		= {
@@ -143,7 +143,7 @@ static struct s3c_pl330_platdata s5pc100_pdma1_pdata = {
 
 static struct platform_device s5pc100_device_pdma1 = {
 	.name		= "s3c-pl330",
-	.id		= 2,
+	.id		= 1,
 	.num_resources	= ARRAY_SIZE(s5pc100_pdma1_resource),
 	.resource	= s5pc100_pdma1_resource,
 	.dev		= {
diff --git a/arch/arm/mach-s5pc100/gpiolib.c b/arch/arm/mach-s5pc100/gpiolib.c
index 0fab7f2cd8b..20856eb7dd5 100644
--- a/arch/arm/mach-s5pc100/gpiolib.c
+++ b/arch/arm/mach-s5pc100/gpiolib.c
@@ -1,5 +1,7 @@
-/*
- * arch/arm/plat-s5pc100/gpiolib.c
+/* linux/arch/arm/mach-s5pc100/gpiolib.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
  *
  *  Copyright 2009 Samsung Electronics Co
  *  Kyungmin Park <kyungmin.park@samsung.com>
@@ -61,30 +63,6 @@
  * L3	8	4Bit	None
  */
 
-static int s5pc100_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
-{
-	return S3C_IRQ_GPIO(chip->base + offset);
-}
-
-static int s5pc100_gpiolib_to_eint(struct gpio_chip *chip, unsigned int offset)
-{
-	int base;
-
-	base = chip->base - S5PC100_GPH0(0);
-	if (base == 0)
-		return IRQ_EINT(offset);
-	base = chip->base - S5PC100_GPH1(0);
-	if (base == 0)
-		return IRQ_EINT(8 + offset);
-	base = chip->base - S5PC100_GPH2(0);
-	if (base == 0)
-		return IRQ_EINT(16 + offset);
-	base = chip->base - S5PC100_GPH3(0);
-	if (base == 0)
-		return IRQ_EINT(24 + offset);
-	return -EINVAL;
-}
-
 static struct s3c_gpio_cfg gpio_cfg = {
 	.set_config	= s3c_gpio_setcfg_s3c64xx_4bit,
 	.set_pull	= s3c_gpio_setpull_updown,
@@ -104,209 +82,150 @@ static struct s3c_gpio_cfg gpio_cfg_noint = {
 	.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 S5PC100_BANK_BASE(bank_nr)	(S5P_VA_GPIO + ((bank_nr) * 0x20))
+
+/*
+ * Following are the gpio banks in S5PC100.
+ *
+ * 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 s5pc100_gpio_chips[] = {
 	{
-		.base	= S5PC100_GPA0_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPA0(0),
 			.ngpio	= S5PC100_GPIO_A0_NR,
 			.label	= "GPA0",
 		},
 	}, {
-		.base	= S5PC100_GPA1_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPA1(0),
 			.ngpio	= S5PC100_GPIO_A1_NR,
 			.label	= "GPA1",
 		},
 	}, {
-		.base	= S5PC100_GPB_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPB(0),
 			.ngpio	= S5PC100_GPIO_B_NR,
 			.label	= "GPB",
 		},
 	}, {
-		.base	= S5PC100_GPC_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPC(0),
 			.ngpio	= S5PC100_GPIO_C_NR,
 			.label	= "GPC",
 		},
 	}, {
-		.base	= S5PC100_GPD_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPD(0),
 			.ngpio	= S5PC100_GPIO_D_NR,
 			.label	= "GPD",
 		},
 	}, {
-		.base	= S5PC100_GPE0_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPE0(0),
 			.ngpio	= S5PC100_GPIO_E0_NR,
 			.label	= "GPE0",
 		},
 	}, {
-		.base	= S5PC100_GPE1_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPE1(0),
 			.ngpio	= S5PC100_GPIO_E1_NR,
 			.label	= "GPE1",
 		},
 	}, {
-		.base	= S5PC100_GPF0_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPF0(0),
 			.ngpio	= S5PC100_GPIO_F0_NR,
 			.label	= "GPF0",
 		},
 	}, {
-		.base	= S5PC100_GPF1_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPF1(0),
 			.ngpio	= S5PC100_GPIO_F1_NR,
 			.label	= "GPF1",
 		},
 	}, {
-		.base	= S5PC100_GPF2_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPF2(0),
 			.ngpio	= S5PC100_GPIO_F2_NR,
 			.label	= "GPF2",
 		},
 	}, {
-		.base	= S5PC100_GPF3_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPF3(0),
 			.ngpio	= S5PC100_GPIO_F3_NR,
 			.label	= "GPF3",
 		},
 	}, {
-		.base	= S5PC100_GPG0_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPG0(0),
 			.ngpio	= S5PC100_GPIO_G0_NR,
 			.label	= "GPG0",
 		},
 	}, {
-		.base	= S5PC100_GPG1_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPG1(0),
 			.ngpio	= S5PC100_GPIO_G1_NR,
 			.label	= "GPG1",
 		},
 	}, {
-		.base	= S5PC100_GPG2_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPG2(0),
 			.ngpio	= S5PC100_GPIO_G2_NR,
 			.label	= "GPG2",
 		},
 	}, {
-		.base	= S5PC100_GPG3_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPG3(0),
 			.ngpio	= S5PC100_GPIO_G3_NR,
 			.label	= "GPG3",
 		},
 	}, {
-		.base	= S5PC100_GPH0_BASE,
-		.config	= &gpio_cfg_eint,
-		.chip	= {
-			.base	= S5PC100_GPH0(0),
-			.ngpio	= S5PC100_GPIO_H0_NR,
-			.label	= "GPH0",
-		},
-	}, {
-		.base	= S5PC100_GPH1_BASE,
-		.config	= &gpio_cfg_eint,
-		.chip	= {
-			.base	= S5PC100_GPH1(0),
-			.ngpio	= S5PC100_GPIO_H1_NR,
-			.label	= "GPH1",
-		},
-	}, {
-		.base	= S5PC100_GPH2_BASE,
-		.config	= &gpio_cfg_eint,
-		.chip	= {
-			.base	= S5PC100_GPH2(0),
-			.ngpio	= S5PC100_GPIO_H2_NR,
-			.label	= "GPH2",
-		},
-	}, {
-		.base	= S5PC100_GPH3_BASE,
-		.config	= &gpio_cfg_eint,
-		.chip	= {
-			.base	= S5PC100_GPH3(0),
-			.ngpio	= S5PC100_GPIO_H3_NR,
-			.label	= "GPH3",
-		},
-	}, {
-		.base	= S5PC100_GPI_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPI(0),
 			.ngpio	= S5PC100_GPIO_I_NR,
 			.label	= "GPI",
 		},
 	}, {
-		.base	= S5PC100_GPJ0_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPJ0(0),
 			.ngpio	= S5PC100_GPIO_J0_NR,
 			.label	= "GPJ0",
 		},
 	}, {
-		.base	= S5PC100_GPJ1_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPJ1(0),
 			.ngpio	= S5PC100_GPIO_J1_NR,
 			.label	= "GPJ1",
 		},
 	}, {
-		.base	= S5PC100_GPJ2_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPJ2(0),
 			.ngpio	= S5PC100_GPIO_J2_NR,
 			.label	= "GPJ2",
 		},
 	}, {
-		.base	= S5PC100_GPJ3_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPJ3(0),
 			.ngpio	= S5PC100_GPIO_J3_NR,
 			.label	= "GPJ3",
 		},
 	}, {
-		.base	= S5PC100_GPJ4_BASE,
-		.config	= &gpio_cfg,
 		.chip	= {
 			.base	= S5PC100_GPJ4(0),
 			.ngpio	= S5PC100_GPIO_J4_NR,
 			.label	= "GPJ4",
 		},
 	}, {
-		.base	= S5PC100_GPK0_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPK0(0),
@@ -314,7 +233,6 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPK0",
 		},
 	}, {
-		.base	= S5PC100_GPK1_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPK1(0),
@@ -322,7 +240,6 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPK1",
 		},
 	}, {
-		.base	= S5PC100_GPK2_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPK2(0),
@@ -330,7 +247,6 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPK2",
 		},
 	}, {
-		.base	= S5PC100_GPK3_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPK3(0),
@@ -338,7 +254,6 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPK3",
 		},
 	}, {
-		.base	= S5PC100_GPL0_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPL0(0),
@@ -346,7 +261,6 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPL0",
 		},
 	}, {
-		.base	= S5PC100_GPL1_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPL1(0),
@@ -354,7 +268,6 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPL1",
 		},
 	}, {
-		.base	= S5PC100_GPL2_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPL2(0),
@@ -362,7 +275,6 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPL2",
 		},
 	}, {
-		.base	= S5PC100_GPL3_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPL3(0),
@@ -370,56 +282,72 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
 			.label	= "GPL3",
 		},
 	}, {
-		.base	= S5PC100_GPL4_BASE,
 		.config	= &gpio_cfg_noint,
 		.chip	= {
 			.base	= S5PC100_GPL4(0),
 			.ngpio	= S5PC100_GPIO_L4_NR,
 			.label	= "GPL4",
 		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC00),
+		.config	= &gpio_cfg_eint,
+		.irq_base = IRQ_EINT(0),
+		.chip	= {
+			.base	= S5PC100_GPH0(0),
+			.ngpio	= S5PC100_GPIO_H0_NR,
+			.label	= "GPH0",
+			.to_irq = samsung_gpiolib_to_irq,
+		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC20),
+		.config	= &gpio_cfg_eint,
+		.irq_base = IRQ_EINT(8),
+		.chip	= {
+			.base	= S5PC100_GPH1(0),
+			.ngpio	= S5PC100_GPIO_H1_NR,
+			.label	= "GPH1",
+			.to_irq = samsung_gpiolib_to_irq,
+		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC40),
+		.config	= &gpio_cfg_eint,
+		.irq_base = IRQ_EINT(16),
+		.chip	= {
+			.base	= S5PC100_GPH2(0),
+			.ngpio	= S5PC100_GPIO_H2_NR,
+			.label	= "GPH2",
+			.to_irq = samsung_gpiolib_to_irq,
+		},
+	}, {
+		.base	= (S5P_VA_GPIO + 0xC60),
+		.config	= &gpio_cfg_eint,
+		.irq_base = IRQ_EINT(24),
+		.chip	= {
+			.base	= S5PC100_GPH3(0),
+			.ngpio	= S5PC100_GPIO_H3_NR,
+			.label	= "GPH3",
+			.to_irq = samsung_gpiolib_to_irq,
+		},
 	},
 };
 
-/* FIXME move from irq-gpio.c */
-extern struct irq_chip s5pc100_gpioint;
-extern void s5pc100_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc);
-
-static __init void s5pc100_gpiolib_link(struct s3c_gpio_chip *chip)
+static __init int s5pc100_gpiolib_init(void)
 {
-	/* Interrupt */
-	if (chip->config == &gpio_cfg) {
-		int i, irq;
-
-		chip->chip.to_irq = s5pc100_gpiolib_to_irq;
+	struct s3c_gpio_chip *chip = s5pc100_gpio_chips;
+	int nr_chips = ARRAY_SIZE(s5pc100_gpio_chips);
+	int gpioint_group = 0;
+	int i;
 
-		for (i = 0;  i < chip->chip.ngpio; i++) {
-			irq = S3C_IRQ_GPIO_BASE + chip->chip.base + i;
-			set_irq_chip(irq, &s5pc100_gpioint);
-			set_irq_data(irq, &chip->chip);
-			set_irq_handler(irq, handle_level_irq);
-			set_irq_flags(irq, IRQF_VALID);
+	for (i = 0; i < nr_chips; i++, chip++) {
+		if (chip->config == NULL) {
+			chip->config = &gpio_cfg;
+			chip->group = gpioint_group++;
 		}
-	} else if (chip->config == &gpio_cfg_eint) {
-		chip->chip.to_irq = s5pc100_gpiolib_to_eint;
+		if (chip->base == NULL)
+			chip->base = S5PC100_BANK_BASE(i);
 	}
-}
-
-static __init int s5pc100_gpiolib_init(void)
-{
-	struct s3c_gpio_chip *chip;
-	int nr_chips;
-
-	chip = s5pc100_gpio_chips;
-	nr_chips = ARRAY_SIZE(s5pc100_gpio_chips);
-
-	for (; nr_chips > 0; nr_chips--, chip++)
-		s5pc100_gpiolib_link(chip);
-
-	samsung_gpiolib_add_4bit_chips(s5pc100_gpio_chips,
-				       ARRAY_SIZE(s5pc100_gpio_chips));
 
-	/* Interrupt */
-	set_irq_chained_handler(IRQ_GPIOINT, s5pc100_irq_gpioint_handler);
+	samsung_gpiolib_add_4bit_chips(s5pc100_gpio_chips, nr_chips);
 
 	return 0;
 }
diff --git a/arch/arm/mach-s5pc100/include/mach/gpio.h b/arch/arm/mach-s5pc100/include/mach/gpio.h
index 71ae1f52df1..29a8a12d9b4 100644
--- a/arch/arm/mach-s5pc100/include/mach/gpio.h
+++ b/arch/arm/mach-s5pc100/include/mach/gpio.h
@@ -146,13 +146,6 @@ enum s5p_gpio_number {
 /* define the number of gpios we need to the one after the MP04() range */
 #define ARCH_NR_GPIOS		(S5PC100_GPIO_END + 1)
 
-#define EINT_MODE		S3C_GPIO_SFN(0x2)
-
-#define EINT_GPIO_0(x)		S5PC100_GPH0(x)
-#define EINT_GPIO_1(x)		S5PC100_GPH1(x)
-#define EINT_GPIO_2(x)		S5PC100_GPH2(x)
-#define EINT_GPIO_3(x)		S5PC100_GPH3(x)
-
 #include <asm-generic/gpio.h>
 
 #endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-s5pc100/include/mach/irqs.h b/arch/arm/mach-s5pc100/include/mach/irqs.h
index 06513e64724..d2eb4757381 100644
--- a/arch/arm/mach-s5pc100/include/mach/irqs.h
+++ b/arch/arm/mach-s5pc100/include/mach/irqs.h
@@ -48,8 +48,8 @@
 #define IRQ_SPI1		S5P_IRQ_VIC1(16)
 #define IRQ_SPI2		S5P_IRQ_VIC1(17)
 #define IRQ_IRDA		S5P_IRQ_VIC1(18)
-#define IRQ_CAN0		S5P_IRQ_VIC1(19)
-#define IRQ_CAN1		S5P_IRQ_VIC1(20)
+#define IRQ_IIC2		S5P_IRQ_VIC1(19)
+#define IRQ_IIC3		S5P_IRQ_VIC1(20)
 #define IRQ_HSIRX		S5P_IRQ_VIC1(21)
 #define IRQ_HSITX		S5P_IRQ_VIC1(22)
 #define IRQ_UHOST		S5P_IRQ_VIC1(23)
@@ -100,11 +100,12 @@
 #define S5P_EINT_BASE1		(S5P_IRQ_VIC0(0))
 #define S5P_EINT_BASE2		(IRQ_VIC_END + 1)
 
-#define