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i2c: New ARM Versatile/Realview bus driver

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Add support for the I2C bus found on the ARM Versatile and Realview
platforms.  The I2C bus has a RTC and optionally some EEPROMs attached.

Signed-off-by: Russell King <[email protected]>
Signed-off-by: Jean Delvare <[email protected]>
This commit is contained in:
Russell King 2006-12-10 21:21:32 +01:00 • committed by Jean Delvare
commit 6b65cd7428
7 changed files with 194 additions and 0 deletions
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13
arch/arm/mach-realview/core.c
View file

@ -141,6 +141,19 @@ struct platform_device realview_smc91x_device = {
.resource = realview_smc91x_resources,
};
static struct resource realview_i2c_resource = {
.start = REALVIEW_I2C_BASE,
.end = REALVIEW_I2C_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
};
struct platform_device realview_i2c_device = {
.name = "versatile-i2c",
.id = -1,
.num_resources = 1,
.resource = &realview_i2c_resource,
};
#define REALVIEW_SYSMCI (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_MCI_OFFSET)
static unsigned int realview_mmc_status(struct device *dev)

1
arch/arm/mach-realview/core.h
View file

@ -108,6 +108,7 @@ static struct amba_device name##_device = { \
extern struct platform_device realview_flash_device;
extern struct platform_device realview_smc91x_device;
extern struct platform_device realview_i2c_device;
extern struct mmc_platform_data realview_mmc0_plat_data;
extern struct mmc_platform_data realview_mmc1_plat_data;
extern struct clk realview_clcd_clk;

1
arch/arm/mach-realview/realview_eb.c
View file

@ -155,6 +155,7 @@ static void __init realview_eb_init(void)
platform_device_register(&realview_flash_device);
platform_device_register(&realview_smc91x_device);
platform_device_register(&realview_i2c_device);
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
struct amba_device *d = amba_devs[i];

14
arch/arm/mach-versatile/core.c
View file

@ -325,6 +325,19 @@ static struct platform_device smc91x_device = {
.resource = smc91x_resources,
};
static struct resource versatile_i2c_resource = {
.start = VERSATILE_I2C_BASE,
.end = VERSATILE_I2C_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device versatile_i2c_device = {
.name = "versatile-i2c",
.id = -1,
.num_resources = 1,
.resource = &versatile_i2c_resource,
};
#define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
unsigned int mmc_status(struct device *dev)
@ -775,6 +788,7 @@ void __init versatile_init(void)
clk_register(&versatile_clcd_clk);
platform_device_register(&versatile_flash_device);
platform_device_register(&versatile_i2c_device);
platform_device_register(&smc91x_device);
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {