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authorRussell King <rmk@arm.linux.org.uk>2006-12-10 15:21:32 -0500
committerJean Delvare <khali@arrakis.delvare>2006-12-10 15:21:32 -0500
commit6b65cd742823f78a6538491982159098ab5fcae1 (patch)
tree1ab913871887b73418583da527716df9da692419 /arch/arm
parent763d9c046a2e511ec090a8986d3f85edf7448e7e (diff)
i2c: New ARM Versatile/Realview bus driver
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 <rmk+kernel@arm.linux.org.uk> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-realview/core.c13
-rw-r--r--arch/arm/mach-realview/core.h1
-rw-r--r--arch/arm/mach-realview/realview_eb.c1
-rw-r--r--arch/arm/mach-versatile/core.c14
4 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 68c67053f479..84d3fe76e94e 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -141,6 +141,19 @@ struct platform_device realview_smc91x_device = {
141 .resource = realview_smc91x_resources, 141 .resource = realview_smc91x_resources,
142}; 142};
143 143
144static struct resource realview_i2c_resource = {
145 .start = REALVIEW_I2C_BASE,
146 .end = REALVIEW_I2C_BASE + SZ_4K - 1,
147 .flags = IORESOURCE_MEM,
148};
149
150struct platform_device realview_i2c_device = {
151 .name = "versatile-i2c",
152 .id = -1,
153 .num_resources = 1,
154 .resource = &realview_i2c_resource,
155};
156
144#define REALVIEW_SYSMCI (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_MCI_OFFSET) 157#define REALVIEW_SYSMCI (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_MCI_OFFSET)
145 158
146static unsigned int realview_mmc_status(struct device *dev) 159static unsigned int realview_mmc_status(struct device *dev)
diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h
index 93e86d9f439c..2b53420f9c1b 100644
--- a/arch/arm/mach-realview/core.h
+++ b/arch/arm/mach-realview/core.h
@@ -108,6 +108,7 @@ static struct amba_device name##_device = { \
108 108
109extern struct platform_device realview_flash_device; 109extern struct platform_device realview_flash_device;
110extern struct platform_device realview_smc91x_device; 110extern struct platform_device realview_smc91x_device;
111extern struct platform_device realview_i2c_device;
111extern struct mmc_platform_data realview_mmc0_plat_data; 112extern struct mmc_platform_data realview_mmc0_plat_data;
112extern struct mmc_platform_data realview_mmc1_plat_data; 113extern struct mmc_platform_data realview_mmc1_plat_data;
113extern struct clk realview_clcd_clk; 114extern struct clk realview_clcd_clk;
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 84a959530fb6..9741b4d3c9cf 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -155,6 +155,7 @@ static void __init realview_eb_init(void)
155 155
156 platform_device_register(&realview_flash_device); 156 platform_device_register(&realview_flash_device);
157 platform_device_register(&realview_smc91x_device); 157 platform_device_register(&realview_smc91x_device);
158 platform_device_register(&realview_i2c_device);
158 159
159 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { 160 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
160 struct amba_device *d = amba_devs[i]; 161 struct amba_device *d = amba_devs[i];
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 57196947559f..bf71507c76fd 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -325,6 +325,19 @@ static struct platform_device smc91x_device = {
325 .resource = smc91x_resources, 325 .resource = smc91x_resources,
326}; 326};
327 327
328static struct resource versatile_i2c_resource = {
329 .start = VERSATILE_I2C_BASE,
330 .end = VERSATILE_I2C_BASE + SZ_4K - 1,
331 .flags = IORESOURCE_MEM,
332};
333
334static struct platform_device versatile_i2c_device = {
335 .name = "versatile-i2c",
336 .id = -1,
337 .num_resources = 1,
338 .resource = &versatile_i2c_resource,
339};
340
328#define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET) 341#define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
329 342
330unsigned int mmc_status(struct device *dev) 343unsigned int mmc_status(struct device *dev)
@@ -775,6 +788,7 @@ void __init versatile_init(void)
775 clk_register(&versatile_clcd_clk); 788 clk_register(&versatile_clcd_clk);
776 789
777 platform_device_register(&versatile_flash_device); 790 platform_device_register(&versatile_flash_device);
791 platform_device_register(&versatile_i2c_device);
778 platform_device_register(&smc91x_device); 792 platform_device_register(&smc91x_device);
779 793
780 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { 794 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {