[U-Boot] [PATCH 1/2] Exynos4412: pinmux: disable pull for MMC pins

[Lukasz Majewski]

Hi Przemyslaw,

> 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 at samsung.com>
> Cc: Guillaume GARDET <guillaume.gardet at free.fr>
> Cc: Lukasz Majewski <l.majewski at samsung.com>
> Cc: Jaehoon Chung <jh80.chung at samsung.com>
> Cc: Minkyu Kang <mk7.kang at samsung.com>
> Cc: Simon Glass <sjg at 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) {


Tested-by: Lukasz Majewski <l.majewski at samsung.com>

Test HW: Exynos 4210 - Trats board.

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group