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| author | Tony Lindgren <tony@atomide.com> | 2010-05-20 11:36:43 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-05-20 11:36:43 -0700 |
| commit | 6daa642d9b8ec762b3c5641cd5e5fa855a5405bf (patch) | |
| tree | 001bc033de8362c970280095bb2d1b4dd85183f6 /arch | |
| parent | b32dd41ed645c22ac3ce4e25bcbd7eee30297292 (diff) | |
| download | linux-6daa642d9b8ec762b3c5641cd5e5fa855a5405bf.tar.bz2 | |
omap4: Add support for i2c init
Add support for i2c init for omap4.
This patch is based on and earlier patch by
Santosh Shilimkar <santosh.shilimkar@ti.com>.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-omap/i2c.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c index 78d1cea9118d..eec2b4993c69 100644 --- a/arch/arm/plat-omap/i2c.c +++ b/arch/arm/plat-omap/i2c.c @@ -38,6 +38,7 @@ #define OMAP2_I2C_BASE1 0x48070000 #define OMAP2_I2C_BASE2 0x48072000 #define OMAP2_I2C_BASE3 0x48060000 +#define OMAP4_I2C_BASE4 0x48350000 static const char name[] = "i2c_omap"; @@ -54,11 +55,14 @@ static const char name[] = "i2c_omap"; static struct resource i2c_resources[][2] = { { I2C_RESOURCE_BUILDER(0, 0) }, -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE2, INT_24XX_I2C2_IRQ) }, +#if defined(CONFIG_ARCH_OMAP2PLUS) + { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE2, 0) }, #endif -#if defined(CONFIG_ARCH_OMAP3) - { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE3, INT_34XX_I2C3_IRQ) }, +#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) + { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE3, 0) }, +#endif +#if defined(CONFIG_ARCH_OMAP4) + { I2C_RESOURCE_BUILDER(OMAP4_I2C_BASE4, 0) }, #endif }; @@ -76,12 +80,15 @@ static struct resource i2c_resources[][2] = { static struct omap_i2c_bus_platform_data i2c_pdata[ARRAY_SIZE(i2c_resources)]; static struct platform_device omap_i2c_devices[] = { I2C_DEV_BUILDER(1, i2c_resources[0], &i2c_pdata[0]), -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) +#if defined(CONFIG_ARCH_OMAP2PLUS) I2C_DEV_BUILDER(2, i2c_resources[1], &i2c_pdata[1]), #endif -#if defined(CONFIG_ARCH_OMAP3) +#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) I2C_DEV_BUILDER(3, i2c_resources[2], &i2c_pdata[2]), #endif +#if defined(CONFIG_ARCH_OMAP4) + I2C_DEV_BUILDER(4, i2c_resources[3], &i2c_pdata[3]), +#endif }; #define OMAP_I2C_CMDLINE_SETUP (BIT(31)) @@ -96,6 +103,8 @@ static int __init omap_i2c_nr_ports(void) ports = 2; else if (cpu_is_omap34xx()) ports = 3; + else if (cpu_is_omap44xx()) + ports = 4; return ports; } @@ -107,6 +116,13 @@ static resource_size_t omap2_i2c_irq[3] __initdata = { INT_34XX_I2C3_IRQ, }; +static resource_size_t omap4_i2c_irq[4] __initdata = { + OMAP44XX_IRQ_I2C1, + OMAP44XX_IRQ_I2C2, + OMAP44XX_IRQ_I2C3, + OMAP44XX_IRQ_I2C4, +}; + static inline int omap1_i2c_add_bus(struct platform_device *pdev, int bus_id) { struct omap_i2c_bus_platform_data *pd; @@ -129,7 +145,10 @@ static inline int omap2_i2c_add_bus(struct platform_device *pdev, int bus_id) res = pdev->resource; - irq = omap2_i2c_irq; + if (!cpu_is_omap44xx()) + irq = omap2_i2c_irq; + else + irq = omap4_i2c_irq; if (bus_id == 1) { res[0].start = OMAP2_I2C_BASE1; |