6 files changed, 35 insertions, 176 deletions

diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index a8cfdefc29e..1e0767b266b 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -33,6 +33,9 @@ obj-$(CONFIG_S3C2410_CLOCK)	+= s3c2410-clock.o
 obj-$(CONFIG_S3C2410_DMA)	+= dma.o
 obj-$(CONFIG_S3C24XX_ADC)	+= adc.o
 
+# device specific setup and/or initialisation
+obj-$(CONFIG_ARCH_S3C2410)	+= setup-i2c.o
+
 # SPI gpio central GPIO functions
 
 obj-$(CONFIG_S3C24XX_SPI_BUS0_GPE11_GPE12_GPE13) += spi-bus0-gpe11_12_13.o
diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c
index 9826efb91e4..14d4f0bc125 100644
--- a/arch/arm/plat-s3c24xx/devs.c
+++ b/arch/arm/plat-s3c24xx/devs.c
@@ -271,31 +271,6 @@ struct platform_device s3c_device_wdt = {
 
 EXPORT_SYMBOL(s3c_device_wdt);
 
-/* I2C */
-
-static struct resource s3c_i2c_resource[] = {
-	[0] = {
-		.start = S3C24XX_PA_IIC,
-		.end   = S3C24XX_PA_IIC + S3C24XX_SZ_IIC - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_IIC,
-		.end   = IRQ_IIC,
-		.flags = IORESOURCE_IRQ,
-	}
-
-};
-
-struct platform_device s3c_device_i2c = {
-	.name		  = "s3c2410-i2c",
-	.id		  = -1,
-	.num_resources	  = ARRAY_SIZE(s3c_i2c_resource),
-	.resource	  = s3c_i2c_resource,
-};
-
-EXPORT_SYMBOL(s3c_device_i2c);
-
 /* IIS */
 
 static struct resource s3c_iis_resource[] = {
@@ -411,36 +386,6 @@ struct platform_device s3c_device_sdi = {
 
 EXPORT_SYMBOL(s3c_device_sdi);
 
-/* High-speed MMC/SD */
-
-static struct resource s3c_hsmmc_resource[] = {
-	[0] = {
-		.start = S3C2443_PA_HSMMC,
-		.end   = S3C2443_PA_HSMMC + S3C2443_SZ_HSMMC - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_S3C2443_HSMMC,
-		.end   = IRQ_S3C2443_HSMMC,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static u64 s3c_device_hsmmc_dmamask = 0xffffffffUL;
-
-struct platform_device s3c_device_hsmmc = {
-	.name		  = "s3c-sdhci",
-	.id		  = -1,
-	.num_resources	  = ARRAY_SIZE(s3c_hsmmc_resource),
-	.resource	  = s3c_hsmmc_resource,
-	.dev              = {
-		.dma_mask = &s3c_device_hsmmc_dmamask,
-		.coherent_dma_mask = 0xffffffffUL
-	}
-};
-
-
-
 /* SPI (0) */
 
 static struct resource s3c_spi0_resource[] = {
diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c
index b07c2d0dd53..f95c6c9d9f1 100644
--- a/arch/arm/plat-s3c24xx/gpiolib.c
+++ b/arch/arm/plat-s3c24xx/gpiolib.c
@@ -19,104 +19,12 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
+#include <plat/gpio-core.h>
 #include <mach/hardware.h>
 #include <asm/irq.h>
 
 #include <mach/regs-gpio.h>
 
-struct s3c24xx_gpio_chip {
-	struct gpio_chip	chip;
-	void __iomem		*base;
-};
-
-static inline struct s3c24xx_gpio_chip *to_s3c_chip(struct gpio_chip *gpc)
-{
-	return container_of(gpc, struct s3c24xx_gpio_chip, chip);
-}
-
-/* these routines are exported for use by other parts of the platform
- * and system support, but are not intended to be used directly by the
- * drivers themsevles.
- */
-
-static int s3c24xx_gpiolib_input(struct gpio_chip *chip, unsigned offset)
-{
-	struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
-	void __iomem *base = ourchip->base;
-	unsigned long flags;
-	unsigned long con;
-
-	local_irq_save(flags);
-
-	con = __raw_readl(base + 0x00);
-	con &= ~(3 << (offset * 2));
-	con |= (S3C2410_GPIO_OUTPUT & 0xf) << (offset * 2);
-
-	__raw_writel(con, base + 0x00);
-
-	local_irq_restore(flags);
-	return 0;
-}
-
-static int s3c24xx_gpiolib_output(struct gpio_chip *chip,
-				  unsigned offset, int value)
-{
-	struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
-	void __iomem *base = ourchip->base;
-	unsigned long flags;
-	unsigned long dat;
-	unsigned long con;
-
-	local_irq_save(flags);
-
-	dat = __raw_readl(base + 0x04);
-	dat &= ~(1 << offset);
-	if (value)
-		dat |= 1 << offset;
-	__raw_writel(dat, base + 0x04);
-
-	con = __raw_readl(base + 0x00);
-	con &= ~(3 << (offset * 2));
-	con |= (S3C2410_GPIO_OUTPUT & 0xf) << (offset * 2);
-
-	__raw_writel(con, base + 0x00);
-	__raw_writel(dat, base + 0x04);
-
-	local_irq_restore(flags);
-	return 0;
-}
-
-static void s3c24xx_gpiolib_set(struct gpio_chip *chip,
-				unsigned offset, int value)
-{
-	struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
-	void __iomem *base = ourchip->base;
-	unsigned long flags;
-	unsigned long dat;
-
-	local_irq_save(flags);
-
-	dat = __raw_readl(base + 0x04);
-	dat &= ~(1 << offset);
-	if (value)
-		dat |= 1 << offset;
-	__raw_writel(dat, base + 0x04);
-
-	local_irq_restore(flags);
-}
-
-static int s3c24xx_gpiolib_get(struct gpio_chip *chip, unsigned offset)
-{
-	struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
-	unsigned long val;
-
-	val = __raw_readl(ourchip->base + 0x04);
-	val >>= offset;
-	val &= 1;
-
-	return val;
-}
-
 static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
 {
 	return -EINVAL;
@@ -125,7 +33,7 @@ static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
 static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
 					unsigned offset, int value)
 {
-	struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
+	struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
 	void __iomem *base = ourchip->base;
 	unsigned long flags;
 	unsigned long dat;
@@ -151,7 +59,7 @@ static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
 	return 0;
 }
 
-static struct s3c24xx_gpio_chip gpios[] = {
+struct s3c_gpio_chip s3c24xx_gpios[] = {
 	[0] = {
 		.base	= S3C24XX_GPIO_BASE(S3C2410_GPA0),
 		.chip	= {
@@ -219,34 +127,13 @@ static struct s3c24xx_gpio_chip gpios[] = {
 	},
 };
 
-static __init void s3c24xx_gpiolib_add(struct s3c24xx_gpio_chip *chip)
-{
-	struct gpio_chip *gc = &chip->chip;
-
-	BUG_ON(!chip->base);
-	BUG_ON(!gc->label);
-	BUG_ON(!gc->ngpio);
-
-	if (!gc->direction_input)
-		gc->direction_input = s3c24xx_gpiolib_input;
-	if (!gc->direction_output)
-		gc->direction_output = s3c24xx_gpiolib_output;
-	if (!gc->set)
-		gc->set = s3c24xx_gpiolib_set;
-	if (!gc->get)
-		gc->get = s3c24xx_gpiolib_get;
-
-	/* gpiochip_add() prints own failure message on error. */
-	gpiochip_add(gc);
-}
-
 static __init int s3c24xx_gpiolib_init(void)
 {
-	struct s3c24xx_gpio_chip *chip = gpios;
+	struct s3c_gpio_chip *chip = s3c24xx_gpios;
 	int gpn;
 
-	for (gpn = 0; gpn < ARRAY_SIZE(gpios); gpn++, chip++)
-		s3c24xx_gpiolib_add(chip);
+	for (gpn = 0; gpn < ARRAY_SIZE(s3c24xx_gpios); gpn++, chip++)
+		s3c_gpiolib_add(chip);
 
 	return 0;
 }
diff --git a/arch/arm/plat-s3c24xx/include/plat/map.h b/arch/arm/plat-s3c24xx/include/plat/map.h
index e7be0c0d370..fef8ea8b8e1 100644
--- a/arch/arm/plat-s3c24xx/include/plat/map.h
+++ b/arch/arm/plat-s3c24xx/include/plat/map.h
@@ -51,7 +51,6 @@
 
 /* Standard size definitions for peripheral blocks. */
 
-#define S3C24XX_SZ_IIC		SZ_1M
 #define S3C24XX_SZ_IIS		SZ_1M
 #define S3C24XX_SZ_ADC		SZ_1M
 #define S3C24XX_SZ_SPI		SZ_1M
diff --git a/arch/arm/plat-s3c24xx/s3c244x.c b/arch/arm/plat-s3c24xx/s3c244x.c
index 49436840305..c1de6bb0101 100644
--- a/arch/arm/plat-s3c24xx/s3c244x.c
+++ b/arch/arm/plat-s3c24xx/s3c244x.c
@@ -68,7 +68,7 @@ void __init s3c244x_map_io(void)
 	/* rename any peripherals used differing from the s3c2410 */
 
 	s3c_device_sdi.name  = "s3c2440-sdi";
-	s3c_device_i2c.name  = "s3c2440-i2c";
+	s3c_device_i2c0.name  = "s3c2440-i2c";
 	s3c_device_nand.name = "s3c2440-nand";
 	s3c_device_usbgadget.name = "s3c2440-usbgadget";
 }
diff --git a/arch/arm/plat-s3c24xx/setup-i2c.c b/arch/arm/plat-s3c24xx/setup-i2c.c
new file mode 100644
index 00000000000..d62b7e7fb35
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/setup-i2c.c
@@ -0,0 +1,25 @@
+/* linux/arch/arm/plat-s3c24xx/setup-i2c.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C24XX Base setup for i2c device
+ *
+ * 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>
+
+struct platform_device;
+
+#include <plat/iic.h>
+#include <mach/hardware.h>
+#include <mach/regs-gpio.h>
+
+void s3c_i2c0_cfg_gpio(struct platform_device *dev)
+{
+	s3c2410_gpio_cfgpin(S3C2410_GPE15, S3C2410_GPE15_IICSDA);
+	s3c2410_gpio_cfgpin(S3C2410_GPE14, S3C2410_GPE14_IICSCL);
+}