This patch enables DWMMC for SMDK5250. Support both dt and non-dt versions.
Signed-off-by: Amar amarendra.xt@samsung.com --- board/samsung/smdk5250/smdk5250.c | 36 ++++++++++++++++++++++++++++++++---- include/configs/exynos5250-dt.h | 9 +++++++++ 2 files changed, 41 insertions(+), 4 deletions(-)
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c index 4d24978..7a9c8f6 100644 --- a/board/samsung/smdk5250/smdk5250.c +++ b/board/samsung/smdk5250/smdk5250.c @@ -27,6 +27,7 @@ #include <netdev.h> #include <spi.h> #include <asm/arch/cpu.h> +#include <asm/arch/dwmmc.h> #include <asm/arch/gpio.h> #include <asm/arch/mmc.h> #include <asm/arch/pinmux.h> @@ -192,16 +193,43 @@ int checkboard(void) #ifdef CONFIG_GENERIC_MMC int board_mmc_init(bd_t *bis) { - int err; + int err = 0, ret = 0;
+#ifdef CONFIG_OF_CONTROL + /* dwmmc initializattion for available channels */ + err = exynos_dwmmc_init(gd->fdt_blob); + if (err) { + debug("dwmmc init failed\n"); + } + ret |= err; +#else err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE); if (err) { debug("SDMMC0 not configured\n"); - return err; } + ret |= err;
- err = s5p_mmc_init(0, 8); - return err; + /*eMMC: dwmmc Channel-0 with 8 bit bus width */ + err = exynos_dwmmc_init(0, 8); + if (err) { + debug("dwmmc Channel-0 init failed\n"); + } + ret |= err; + + err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE); + if (err) { + debug("SDMMC2 not configured\n"); + } + ret |= err; + + /*SD: dwmmc Channel-2 with 4 bit bus width */ + err = exynos_dwmmc_init(2, 4); + if (err) { + debug("dwmmc Channel-2 init failed\n"); + } + ret |= err; +#endif + return ret; } #endif
diff --git a/include/configs/exynos5250-dt.h b/include/configs/exynos5250-dt.h index 12f555c..3b89e20 100644 --- a/include/configs/exynos5250-dt.h +++ b/include/configs/exynos5250-dt.h @@ -84,6 +84,8 @@ #define CONFIG_MMC #define CONFIG_SDHCI #define CONFIG_S5P_SDHCI +#define CONFIG_DWMMC +#define CONFIG_EXYNOS_DWMMC
#define CONFIG_BOARD_EARLY_INIT_F
@@ -116,6 +118,13 @@ #define CONFIG_SPL #define COPY_BL2_FNPTR_ADDR 0x02020030
+/* eMMC4.4 SPL */ +#define EMMC44_COPY_BL2_FNPTR_ADDR 0x02020044 +#define EMMC44_END_BOOTOP_FNPTR_ADDR 0x02020048 + +#define FSYS1_MMC0_DIV_MASK 0xff0f + + /* specific .lds file */ #define CONFIG_SPL_LDSCRIPT "board/samsung/smdk5250/smdk5250-uboot-spl.lds" #define CONFIG_SPL_TEXT_BASE 0x02023400