Hi Piotr,
On 08/29/2012 04:56 PM, Piotr Wilczek wrote:
> This patch add pinmux settings for Exynos4 for mmc0 and mmc2
>
> 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>
> ---
> Changes for v2:
> - mmc initialisation code moved to pinmux instead of creating a new common
> code file
> Changes for v3:
> - no changes
>
> arch/arm/cpu/armv7/exynos/pinmux.c | 56
> +++++++++++++++++++++++++++++
> arch/arm/include/asm/arch-exynos/periph.h | 1 +
> 2 files changed, 57 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c
> b/arch/arm/cpu/armv7/exynos/pinmux.c
> index d2b7d2c..84ee05c 100644
> --- a/arch/arm/cpu/armv7/exynos/pinmux.c
> +++ b/arch/arm/cpu/armv7/exynos/pinmux.c
> @@ -209,10 +209,66 @@ static int exynos5_pinmux_config(int peripheral, int
> flags)
> return 0;
> }
>
> +static int exynos4_mmc_config(int peripheral, int flags)
> +{
> + struct exynos4_gpio_part2 *gpio2 =
> + (struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
> + struct s5p_gpio_bank *bank, *bank_ext;
bank, bank_ext is uninitialized.
> + int i;
> +
> + switch (peripheral) {
> + case PERIPH_ID_SDMMC0:
> + bank = &gpio2->k0;
> + bank_ext = &gpio2->k1;
> + break;
> + case PERIPH_ID_SDMMC2:
> + bank = &gpio2->k2;
> + bank_ext = &gpio2->k3;
> + break;
> + }
> + for (i = 0; i < 7; i++) {
> + if (i == 2)
> + continue;
> + s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
> + s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
> + s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
> + }
> + if (flags & PINMUX_FLAG_8BIT_MODE) {
> + for (i = 3; i < 7; i++) {
> + s5p_gpio_cfg_pin(bank_ext, i, GPIO_FUNC(0x3));
> + s5p_gpio_set_pull(bank_ext, i, GPIO_PULL_NONE);
> + s5p_gpio_set_drv(bank_ext, i, GPIO_DRV_4X);
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int exynos4_pinmux_config(int peripheral, int flags)
> +{
> + switch (peripheral) {
> + case PERIPH_ID_SDMMC0:
> + case PERIPH_ID_SDMMC2:
> + return exynos4_mmc_config(peripheral, flags);
> + case PERIPH_ID_SDMMC1:
> + case PERIPH_ID_SDMMC3:
> + case PERIPH_ID_SDMMC4:
> + printf("SDMMC device %d not implemented\n", peripheral);
> + return -1;
> + default:
> + debug("%s: invalid peripheral %d", __func__, peripheral);
> + return -1;
> + }
> +
> + return 0;
> +}
> +
> int exynos_pinmux_config(int peripheral, int flags)
> {
> if (cpu_is_exynos5())
> return exynos5_pinmux_config(peripheral, flags);
> + else if (cpu_is_exynos4())
> + return exynos4_pinmux_config(peripheral, flags);
> else {
> debug("pinmux functionality not supported\n");
> return -1;
> diff --git a/arch/arm/include/asm/arch-exynos/periph.h
> b/arch/arm/include/asm/arch-exynos/periph.h
> index 5db25aa..4e1da82 100644
> --- a/arch/arm/include/asm/arch-exynos/periph.h
> +++ b/arch/arm/include/asm/arch-exynos/periph.h
> @@ -34,6 +34,7 @@ enum periph_id {
> PERIPH_ID_SDMMC1,
> PERIPH_ID_SDMMC2,
> PERIPH_ID_SDMMC3,
> + PERIPH_ID_SDMMC4,
> PERIPH_ID_SROMC,
> PERIPH_ID_UART0,
> PERIPH_ID_UART1,
>
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