On Wed, Jun 6, 2012 at 11:09 PM, Rajeshwari Shinde <rajeshwari.s@samsung.com
wrote:
This patch adds pinmux code for I2C.
Signed-off-by: Rajeshwari Shinde rajeshwari.s@samsung.com Acked-by: Simon Glass sjg@chromium.org
Changes in V2: - Aligned the pinmux functionality as per the latest comments.
Acked-by: Simon Glass sjg@chromium.org
This patch depends on the following patch: "[U-Boot] [PATCH 1/2 V6] EXYNOS5: PINMUX: Added default pinumx settings" arch/arm/cpu/armv7/exynos/pinmux.c | 52 +++++++++++++++++++++++++++++ arch/arm/include/asm/arch-exynos/periph.h | 8 ++++ 2 files changed, 60 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c index 597e487..d3314a1 100644 --- a/arch/arm/cpu/armv7/exynos/pinmux.c +++ b/arch/arm/cpu/armv7/exynos/pinmux.c @@ -182,6 +182,48 @@ static void exynos5_sromc_config(int flags) } }
+static void exynos5_i2c_config(int peripheral, int flags) +{
struct exynos5_gpio_part1 *gpio1 =(struct exynos5_gpio_part1 *)samsung_get_base_gpio_part1();
switch (peripheral) {case PERIPH_ID_I2C0:s5p_gpio_cfg_pin(&gpio1->b3, 0, GPIO_FUNC(0x2));s5p_gpio_cfg_pin(&gpio1->b3, 1, GPIO_FUNC(0x2));break;case PERIPH_ID_I2C1:s5p_gpio_cfg_pin(&gpio1->b3, 2, GPIO_FUNC(0x2));s5p_gpio_cfg_pin(&gpio1->b3, 3, GPIO_FUNC(0x2));break;case PERIPH_ID_I2C2:s5p_gpio_cfg_pin(&gpio1->a0, 6, GPIO_FUNC(0x3));s5p_gpio_cfg_pin(&gpio1->a0, 7, GPIO_FUNC(0x3));break;case PERIPH_ID_I2C3:s5p_gpio_cfg_pin(&gpio1->a1, 2, GPIO_FUNC(0x3));s5p_gpio_cfg_pin(&gpio1->a1, 3, GPIO_FUNC(0x3));break;case PERIPH_ID_I2C4:s5p_gpio_cfg_pin(&gpio1->a2, 0, GPIO_FUNC(0x3));s5p_gpio_cfg_pin(&gpio1->a2, 1, GPIO_FUNC(0x3));break;case PERIPH_ID_I2C5:s5p_gpio_cfg_pin(&gpio1->a2, 2, GPIO_FUNC(0x3));s5p_gpio_cfg_pin(&gpio1->a2, 3, GPIO_FUNC(0x3));break;case PERIPH_ID_I2C6:s5p_gpio_cfg_pin(&gpio1->b1, 3, GPIO_FUNC(0x4));s5p_gpio_cfg_pin(&gpio1->b1, 4, GPIO_FUNC(0x4));break;case PERIPH_ID_I2C7:s5p_gpio_cfg_pin(&gpio1->b2, 2, GPIO_FUNC(0x3));s5p_gpio_cfg_pin(&gpio1->b2, 3, GPIO_FUNC(0x3));break;}+}
static int exynos5_pinmux_config(int peripheral, int flags) { switch (peripheral) { @@ -200,6 +242,16 @@ static int exynos5_pinmux_config(int peripheral, int flags) case PERIPH_ID_SROMC: exynos5_sromc_config(flags); break;
case PERIPH_ID_I2C0:case PERIPH_ID_I2C1:case PERIPH_ID_I2C2:case PERIPH_ID_I2C3:case PERIPH_ID_I2C4:case PERIPH_ID_I2C5:case PERIPH_ID_I2C6:case PERIPH_ID_I2C7:exynos5_i2c_config(peripheral, flags);break; default: debug("%s: invalid peripheral %d", __func__, peripheral); return -1;diff --git a/arch/arm/include/asm/arch-exynos/periph.h b/arch/arm/include/asm/arch-exynos/periph.h index 5db25aa..b861d7d 100644 --- a/arch/arm/include/asm/arch-exynos/periph.h +++ b/arch/arm/include/asm/arch-exynos/periph.h @@ -30,6 +30,14 @@
*/ enum periph_id {
PERIPH_ID_I2C0,PERIPH_ID_I2C1,PERIPH_ID_I2C2,PERIPH_ID_I2C3,PERIPH_ID_I2C4,PERIPH_ID_I2C5,PERIPH_ID_I2C6,PERIPH_ID_I2C7, PERIPH_ID_SDMMC0, PERIPH_ID_SDMMC1, PERIPH_ID_SDMMC2,-- 1.7.4.4