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authorBen Dooks2008-12-18 16:17:37 +0000
committerBen Dooks2008-12-18 16:17:37 +0000
commit56c035c9ce1f1850969778af6a4cc0b99089b6c8 (patch)
treeb6f1998be0c1e6bb623a0c55e8ba04d74bb58cf2 /arch/arm/plat-s3c24xx
parent7f2754378f3522a42daafdbb9d2385f341008454 (diff)
parent438a5d42e052ec6126c5f1e24763b711210db33e (diff)
Merge branch 'next-s3c64xx-device' into next-merged
Conflicts: arch/arm/mach-s3c2440/mach-at2440evb.c
Diffstat (limited to 'arch/arm/plat-s3c24xx')
-rw-r--r--arch/arm/plat-s3c24xx/Makefile3
-rw-r--r--arch/arm/plat-s3c24xx/devs.c55
-rw-r--r--arch/arm/plat-s3c24xx/gpiolib.c125
-rw-r--r--arch/arm/plat-s3c24xx/include/plat/map.h1
-rw-r--r--arch/arm/plat-s3c24xx/s3c244x.c2
-rw-r--r--arch/arm/plat-s3c24xx/setup-i2c.c25
6 files changed, 35 insertions, 176 deletions
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index a8cfdefc29e9..1e0767b266b8 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 9826efb91e48..14d4f0bc1253 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 b07c2d0dd533..f95c6c9d9f1a 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 e7be0c0d3702..fef8ea8b8e1e 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 494368403055..c1de6bb0101b 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 000000000000..d62b7e7fb355
--- /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);
+}