s5pc210: universal: Enable MMC (not yet work)

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

diff --git a/board/samsung/universal_c210/universal.c b/board/samsung/universal_c210/universal.c
index 8578515..dd3a2ae 100644 (file)
--- a/board/samsung/universal_c210/universal.c
+++ b/board/samsung/universal_c210/universal.c
@@ -23,11 +23,18 @@
  */
 
 #include <common.h>
+#include <asm/arch/gpio.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static struct s5pc210_gpio_part1 *gpio1;
+static struct s5pc210_gpio_part2 *gpio2;
+
 int board_init(void)
 {
+       gpio1 = (struct s5pc210_gpio_part1 *) S5PC210_GPIO_PART1_BASE;
+       gpio2 = (struct s5pc210_gpio_part2 *) S5PC210_GPIO_PART2_BASE;
+
        gd->bd->bi_arch_number = MACH_TYPE_GONI;
        gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 
@@ -43,3 +50,56 @@ int dram_init(void)
 
        return 0;
 }
+
+#ifdef CONFIG_GENERIC_MMC
+int s5p_no_mmc_support(void)
+{
+       return 0;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+       int i;
+
+       if (s5p_no_mmc_support())
+               return -1;
+
+       /*
+        * 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 */
+               gpio_cfg_pin(&gpio2->gpio_k0, i, 0x2);
+               /* GPK0[0:6] pull disable */
+               gpio_set_pull(&gpio2->gpio_k0, i, GPIO_PULL_NONE);
+               /* GPK0[0:6] drv 4x */
+               gpio_set_drv(&gpio2->gpio_k0, i, GPIO_DRV_4X);
+       }
+
+       for (i = 3; i < 7; i++) {
+               /* GPK1[3:6] special function 3 */
+               gpio_cfg_pin(&gpio2->gpio_k1, i, 0x3);
+               /* GPK1[3:6] pull disable */
+               gpio_set_pull(&gpio2->gpio_k1, i, GPIO_PULL_NONE);
+               /* GPK1[3:6] drv 4x */
+               gpio_set_drv(&gpio2->gpio_k1, i, GPIO_DRV_4X);
+       }
+
+       return s5p_mmc_init(0);
+}
+#endif

diff --git a/include/configs/s5pc210_universal.h b/include/configs/s5pc210_universal.h
index 25c70ca..728843b 100644 (file)
--- a/include/configs/s5pc210_universal.h
+++ b/include/configs/s5pc210_universal.h
@@ -81,7 +81,7 @@
 #define CONFIG_SERIAL2          1      /* we use SERIAL 2 on S5PC210 */
 
 /* MMC */
-#if 0
+#if 1
 #define CONFIG_GENERIC_MMC     1
 #define CONFIG_MMC             1
 #define CONFIG_S5P_MMC         1
@@ -123,7 +123,7 @@
 #define CONFIG_CMD_MTDPARTS
 #define CONFIG_CMD_MTDPARTS_LITE
 //#define CONFIG_CMD_I2C
-//#define CONFIG_CMD_MMC
+#define CONFIG_CMD_MMC
 #define CONFIG_CMD_SLEEP
 #define CONFIG_CMD_PMIC
 #define CONFIG_CMD_DEVICE_POWER