[U-Boot] [PATCH 06/18] exynos5: pinmux: check flag for i2c config

[Przemyslaw Marczak]

Some versions of Exynos5 supports High-Speed I2C,
on few interfaces, this change allows support this.

Signed-off-by: Przemyslaw Marczak <p.marczak at samsung.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: Akshay Saraswat <akshay.s at samsung.com>
Cc: Minkyu Kang <mk7.kang at samsung.com>
---
 arch/arm/cpu/armv7/exynos/pinmux.c | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c
index 94d0297..b2c5494 100644
--- a/arch/arm/cpu/armv7/exynos/pinmux.c
+++ b/arch/arm/cpu/armv7/exynos/pinmux.c
@@ -266,22 +266,33 @@ static void exynos5_sromc_config(int flags)
 
 static void exynos5_i2c_config(int peripheral, int flags)
 {
+	int func01, func23;
+
+	 /* flags only for High-Speed I2C */
+	if (flags) {
+		func01 = 4;
+		func23 = 4;
+	} else {
+		func01 = 2;
+		func23 = 3;
+	}
+
 	switch (peripheral) {
 	case PERIPH_ID_I2C0:
-		gpio_cfg_pin(EXYNOS5_GPIO_B30, S5P_GPIO_FUNC(0x2));
-		gpio_cfg_pin(EXYNOS5_GPIO_B31, S5P_GPIO_FUNC(0x2));
+		gpio_cfg_pin(EXYNOS5_GPIO_B30, S5P_GPIO_FUNC(func01));
+		gpio_cfg_pin(EXYNOS5_GPIO_B31, S5P_GPIO_FUNC(func01));
 		break;
 	case PERIPH_ID_I2C1:
-		gpio_cfg_pin(EXYNOS5_GPIO_B32, S5P_GPIO_FUNC(0x2));
-		gpio_cfg_pin(EXYNOS5_GPIO_B33, S5P_GPIO_FUNC(0x2));
+		gpio_cfg_pin(EXYNOS5_GPIO_B32, S5P_GPIO_FUNC(func01));
+		gpio_cfg_pin(EXYNOS5_GPIO_B33, S5P_GPIO_FUNC(func01));
 		break;
 	case PERIPH_ID_I2C2:
-		gpio_cfg_pin(EXYNOS5_GPIO_A06, S5P_GPIO_FUNC(0x3));
-		gpio_cfg_pin(EXYNOS5_GPIO_A07, S5P_GPIO_FUNC(0x3));
+		gpio_cfg_pin(EXYNOS5_GPIO_A06, S5P_GPIO_FUNC(func23));
+		gpio_cfg_pin(EXYNOS5_GPIO_A07, S5P_GPIO_FUNC(func23));
 		break;
 	case PERIPH_ID_I2C3:
-		gpio_cfg_pin(EXYNOS5_GPIO_A12, S5P_GPIO_FUNC(0x3));
-		gpio_cfg_pin(EXYNOS5_GPIO_A13, S5P_GPIO_FUNC(0x3));
+		gpio_cfg_pin(EXYNOS5_GPIO_A12, S5P_GPIO_FUNC(func23));
+		gpio_cfg_pin(EXYNOS5_GPIO_A13, S5P_GPIO_FUNC(func23));
 		break;
 	case PERIPH_ID_I2C4:
 		gpio_cfg_pin(EXYNOS5_GPIO_A20, S5P_GPIO_FUNC(0x3));
-- 
1.9.1