[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.marc...@samsung.com>
Cc: Simon Glass <s...@chromium.org>
Cc: Akshay Saraswat <aksha...@samsung.com>
Cc: Minkyu Kang <mk7.k...@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

_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot