[U-Boot] [PATCH 4/4] SMDK5250: Initialise and enable dwmmc channels

Amar
2012-12-05T13:31:37Z

This patch initialises and enables dwmmc channels 0 and 2 for SMDK5250.
It also initialises the pinmux for the same.

Signed-off-by: Amarendra Reddy <amarendra.xt@samsung.com>
---
board/samsung/smdk5250/smdk5250.c | 22 +++++++++++++++++++++-
include/configs/smdk5250.h | 4 ++--
2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
index 4c50342..9503510 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -26,6 +26,7 @@
#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>
@@ -139,13 +140,32 @@ int board_mmc_init(bd_t *bis)
{
int err;

+ err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
+ if (err) {
+ debug("SDMMC2 not configured\n");
+ return 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");
+ return err;
+ }
+
err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
if (err) {
debug("SDMMC0 not configured\n");
return err;
}

- err = s5p_mmc_init(0, 8);
+ /*eMMC: dwmmc Channel-0 with 8 bit bus width */
+ err = exynos_dwmmc_init(0, 8);
+ if (err) {
+ debug("dwmmc Channel-0 init failed\n");
+ return err;
+ }
+
return err;
}
#endif
diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h
index e412da8..7dc2d96 100644
--- a/include/configs/smdk5250.h
+++ b/include/configs/smdk5250.h
@@ -77,8 +77,8 @@
/* SD/MMC configuration */
#define CONFIG_GENERIC_MMC
#define CONFIG_MMC
-#define CONFIG_SDHCI
-#define CONFIG_S5P_SDHCI
+#define CONFIG_DWMMC
+#define CONFIG_EXYNOS_DWMMC

#define CONFIG_BOARD_EARLY_INIT_F

--
1.7.0.4