On 08/23/2012 09:01 PM, Piotr Wilczek wrote:
> This patch use the pinmux for mmc configuration for Trats
>
> 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>
> ---
> Chaneges for v2:
> - mmc iniatialisation using pinmux
>
> board/samsung/trats/trats.c | 62 +++++++-----------------------------------
> 1 files changed, 11 insertions(+), 51 deletions(-)
>
> diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
> index f5df56c..0fab2e0 100644
> --- a/board/samsung/trats/trats.c
> +++ b/board/samsung/trats/trats.c
> @@ -29,6 +29,7 @@
> #include <asm/arch/cpu.h>
> #include <asm/arch/gpio.h>
> #include <asm/arch/mmc.h>
> +#include <asm/arch/pinmux.h>
> #include <asm/arch/clock.h>
> #include <asm/arch/clk.h>
> #include <asm/arch/mipi_dsim.h>
> @@ -140,46 +141,16 @@ int board_mmc_init(bd_t *bis)
> {
> struct exynos4_gpio_part2 *gpio =
> (struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
> - int i, err;
> + int err;
>
> /* eMMC_EN: SD_0_CDn: GPK0[2] Output High */
> s5p_gpio_direction_output(&gpio->k0, 2, 1);
> s5p_gpio_set_pull(&gpio->k0, 2, GPIO_PULL_NONE);
>
> - /*
> - * eMMC GPIO:
> - * SDR 8-bit@48MHz at MMC0
> - * GPK0[0] SD_0_CLK(2)
> - * GPK0[1] SD_0_CMD(2)
> - * GPK0[2] SD_0_CDn -> Not used
> - * GPK0[3:6] SD_0_DATA[0:3](2)
> - * GPK1[3:6] SD_0_DATA[0:3](3)
> - *
> - * DDR 4-bit@26MHz at MMC4
> - * GPK0[0] SD_4_CLK(3)
> - * GPK0[1] SD_4_CMD(3)
> - * GPK0[2] SD_4_CDn -> Not used
> - * GPK0[3:6] SD_4_DATA[0:3](3)
> - * GPK1[3:6] SD_4_DATA[4:7](4)
> - */
> - for (i = 0; i < 7; i++) {
> - if (i == 2)
> - continue;
> - /* GPK0[0:6] special function 2 */
> - s5p_gpio_cfg_pin(&gpio->k0, i, 0x2);
> - /* GPK0[0:6] pull disable */
> - s5p_gpio_set_pull(&gpio->k0, i, GPIO_PULL_NONE);
> - /* GPK0[0:6] drv 4x */
> - s5p_gpio_set_drv(&gpio->k0, i, GPIO_DRV_4X);
> - }
> -
> - for (i = 3; i < 7; i++) {
> - /* GPK1[3:6] special function 3 */
> - s5p_gpio_cfg_pin(&gpio->k1, i, 0x3);
> - /* GPK1[3:6] pull disable */
> - s5p_gpio_set_pull(&gpio->k1, i, GPIO_PULL_NONE);
> - /* GPK1[3:6] drv 4x */
> - s5p_gpio_set_drv(&gpio->k1, i, GPIO_DRV_4X);
> + err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
> + if (err) {
> + debug("SDMMC0 not configured\n");
> + return err;
> }
if err, return? then how can sd-card init?
SD/eMMC card didn't have the dependency.
Best Regards,
Jaehoon Chung
>
> /*
> @@ -198,23 +169,12 @@ int board_mmc_init(bd_t *bis)
> * GPX3[4] T-flash detect pin
> */
> if (!s5p_gpio_get_value(&gpio->x3, 4)) {
> - /*
> - * SD card GPIO:
> - * GPK2[0] SD_2_CLK(2)
> - * GPK2[1] SD_2_CMD(2)
> - * GPK2[2] SD_2_CDn -> Not used
> - * GPK2[3:6] SD_2_DATA[0:3](2)
> - */
> - for (i = 0; i < 7; i++) {
> - if (i == 2)
> - continue;
> - /* GPK2[0:6] special function 2 */
> - s5p_gpio_cfg_pin(&gpio->k2, i, 0x2);
> - /* GPK2[0:6] pull disable */
> - s5p_gpio_set_pull(&gpio->k2, i, GPIO_PULL_NONE);
> - /* GPK2[0:6] drv 4x */
> - s5p_gpio_set_drv(&gpio->k2, i, GPIO_DRV_4X);
> + err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
> + if (err) {
> + debug("SDMMC2 not configured\n");
> + return err;
> }
> +
> err = s5p_mmc_init(2, 4);
> }
>
>
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