[U-Boot] [PATCH 3/5] EXYNOS: PINMUX: Add pinmux support for i2c

[Piotr Wilczek]

This patch add pinmux for I2C for Exynos4

Signed-off-by: Piotr Wilczek <p.wilc...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
CC: Minkyu Kang <mk7.k...@samsung.com>
---
 arch/arm/cpu/armv7/exynos/pinmux.c |   51 ++++++++++++++++++++++++++++++++++++
 1 files changed, 51 insertions(+), 0 deletions(-)

diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c 
b/arch/arm/cpu/armv7/exynos/pinmux.c
index 5796d56..3ebeb1d 100644
--- a/arch/arm/cpu/armv7/exynos/pinmux.c
+++ b/arch/arm/cpu/armv7/exynos/pinmux.c
@@ -302,6 +302,47 @@ static int exynos4_mmc_config(int peripheral, int flags)
        return 0;
 }
 
+static void exynos4_i2c_config(int peripheral, int flags)
+{
+       struct exynos4_gpio_part1 *gpio1 =
+               (struct exynos4_gpio_part1 *) samsung_get_base_gpio_part1();
+
+       switch (peripheral) {
+       case PERIPH_ID_I2C0:
+               s5p_gpio_cfg_pin(&gpio1->d1, 0, GPIO_FUNC(0x2));
+               s5p_gpio_cfg_pin(&gpio1->d1, 1, GPIO_FUNC(0x2));
+               break;
+       case PERIPH_ID_I2C1:
+               s5p_gpio_cfg_pin(&gpio1->d1, 2, GPIO_FUNC(0x2));
+               s5p_gpio_cfg_pin(&gpio1->d1, 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->b, 2, GPIO_FUNC(0x3));
+               s5p_gpio_cfg_pin(&gpio1->b, 3, GPIO_FUNC(0x3));
+               break;
+       case PERIPH_ID_I2C5:
+               s5p_gpio_cfg_pin(&gpio1->b, 6, GPIO_FUNC(0x3));
+               s5p_gpio_cfg_pin(&gpio1->b, 7, GPIO_FUNC(0x3));
+               break;
+       case PERIPH_ID_I2C6:
+               s5p_gpio_cfg_pin(&gpio1->c1, 3, GPIO_FUNC(0x4));
+               s5p_gpio_cfg_pin(&gpio1->c1, 4, GPIO_FUNC(0x4));
+               break;
+       case PERIPH_ID_I2C7:
+               s5p_gpio_cfg_pin(&gpio1->d0, 2, GPIO_FUNC(0x3));
+               s5p_gpio_cfg_pin(&gpio1->d0, 3, GPIO_FUNC(0x3));
+               break;
+       }
+}
+
 static int exynos4_pinmux_config(int peripheral, int flags)
 {
        switch (peripheral) {
@@ -313,6 +354,16 @@ static int exynos4_pinmux_config(int peripheral, int flags)
        case PERIPH_ID_SDMMC4:
                printf("SDMMC device %d not implemented\n", peripheral);
                return -1;
+       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:
+               exynos4_i2c_config(peripheral, flags);
+               break;
        default:
                debug("%s: invalid peripheral %d", __func__, peripheral);
                return -1;
-- 
1.7.5.4

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