There are 8 pins for SD card in Exynos, but the MUX was configured only for 7, since the one was used for card detection. This caused the pin's pull wrong configuration.
This commit fixes this and the card detect can work properly, after call this function.
Tested-on: Odroid U3 and Odroid X2.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com Cc: Guillaume GARDET guillaume.gardet@free.fr Cc: Lukasz Majewski l.majewski@samsung.com Cc: Jaehoon Chung jh80.chung@samsung.com Cc: Minkyu Kang mk7.kang@samsung.com Cc: Simon Glass sjg@chromium.org --- arch/arm/mach-exynos/pinmux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/pinmux.c b/arch/arm/mach-exynos/pinmux.c index 179b294..925bd0a 100644 --- a/arch/arm/mach-exynos/pinmux.c +++ b/arch/arm/mach-exynos/pinmux.c @@ -737,10 +737,10 @@ static int exynos4x12_mmc_config(int peripheral, int flags) return -1; } for (i = start; i < (start + 7); i++) { + gpio_set_pull(i, S5P_GPIO_PULL_NONE); if (i == (start + 2)) continue; gpio_cfg_pin(i, func); - gpio_set_pull(i, S5P_GPIO_PULL_NONE); gpio_set_drv(i, S5P_GPIO_DRV_4X); } if (flags & PINMUX_FLAG_8BIT_MODE) {