da830: add MMC support

Add MMC support for da830 boards in order to perform
mmc operations(read,write and erase).

Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@ti.com>

diff --git a/board/davinci/da8xxevm/da830evm.c b/board/davinci/da8xxevm/da830evm.c
index c45c94b4c0d6ccc231dfe6db5f74ba8e715e2ec9..bf014aefbcd5de8a935025c51f10ab3422ddbb17 100644 (file)
--- a/board/davinci/da8xxevm/da830evm.c
+++ b/board/davinci/da8xxevm/da830evm.c
@@ -44,6 +44,11 @@
 #include <asm/arch/nand_defs.h>
 #include <asm/arch/davinci_misc.h>
 
+#ifdef CONFIG_DAVINCI_MMC
+#include <mmc.h>
+#include <asm/arch/sdmmc_defs.h>
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 /* SPI0 pin muxer settings */
@@ -153,6 +158,23 @@ static const struct pinmux_config usb_pins[] = {
        { pinmux(9), 1, 1 }
 };
 
+#ifdef CONFIG_DAVINCI_MMC
+/* MMC0 pin muxer settings */
+const struct pinmux_config mmc0_pins[] = {
+       { pinmux(15), 2, 7 },   /* MMCSD0_CLK */
+       { pinmux(16), 2, 0 },   /* MMCSD0_CMD */
+       { pinmux(13), 2, 6 },   /* MMCSD0_DAT_0 */
+       { pinmux(13), 2, 7 },   /* MMCSD0_DAT_1 */
+       { pinmux(14), 2, 0 },   /* MMCSD0_DAT_2 */
+       { pinmux(14), 2, 1 },   /* MMCSD0_DAT_3 */
+       { pinmux(14), 2, 2 },   /* MMCSD0_DAT_4 */
+       { pinmux(14), 2, 3 },   /* MMCSD0_DAT_5 */
+       { pinmux(14), 2, 4 },   /* MMCSD0_DAT_6 */
+       { pinmux(14), 2, 5 },   /* MMCSD0_DAT_7 */
+       /* DA830 supports 8-bit mode */
+};
+#endif
+
 static const struct pinmux_resource pinmuxes[] = {
 #ifdef CONFIG_SPI_FLASH
        PINMUX_ITEM(spi0_pins),
@@ -169,6 +191,9 @@ static const struct pinmux_resource pinmuxes[] = {
 #if defined(CONFIG_DRIVER_TI_EMAC)
        PINMUX_ITEM(emac_pins),
 #endif
+#ifdef CONFIG_DAVINCI_MMC
+       PINMUX_ITEM(mmc0_pins),
+#endif
 };
 
 static const struct lpsc_resource lpsc[] = {
@@ -177,8 +202,31 @@ static const struct lpsc_resource lpsc[] = {
        { DAVINCI_LPSC_EMAC },  /* image download */
        { DAVINCI_LPSC_UART2 }, /* console */
        { DAVINCI_LPSC_GPIO },
+#ifdef CONFIG_DAVINCI_MMC
+       { DAVINCI_LPSC_MMC_SD },
+#endif
+
 };
 
+#ifdef CONFIG_DAVINCI_MMC
+static struct davinci_mmc mmc_sd0 = {
+       .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
+       .host_caps = MMC_MODE_8BIT,
+       .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
+       .version = MMC_CTLR_VERSION_2,
+};
+
+int board_mmc_init(bd_t *bis)
+{
+       mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID);
+
+       printf("%x\n", mmc_sd0.input_clk);
+
+       /* Add slot-0 to mmc subsystem */
+       return davinci_mmc_init(bis, &mmc_sd0);
+}
+#endif
+
 int board_init(void)
 {
 #ifndef CONFIG_USE_IRQ

diff --git a/include/configs/da830evm.h b/include/configs/da830evm.h
index 198892ba571de796208417e045dc6137271b4670..28995a00e4a397103ed04febe8ad769f0b3d7fcd 100644 (file)
--- a/include/configs/da830evm.h
+++ b/include/configs/da830evm.h
@@ -226,6 +226,28 @@
 #define CONFIG_CMD_SAVEENV
 #endif
 
+/* SD/MMC configuration */
+#ifndef CONFIG_USE_NAND
+#define CONFIG_MMC
+#define CONFIG_DAVINCI_MMC_SD1
+#define CONFIG_GENERIC_MMC
+#define CONFIG_DAVINCI_MMC
+#endif
+
+/*
+ * Enable MMC commands only when
+ * MMC support is present
+ */
+#if defined(CONFIG_MMC) || defined(CONFIG_USB_DA8XX)
+#define CONFIG_DOS_PARTITION   /* include support for FAT/storage */
+#define CONFIG_CMD_FAT         /* include support for FAT cmd */
+#endif
+
+#ifdef CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_CMD_EXT2
+#endif
+
 #if !defined(CONFIG_USE_NAND) && \
        !defined(CONFIG_USE_NOR) && \
        !defined(CONFIG_USE_SPIFLASH)
@@ -244,8 +266,6 @@
 
 #define CONFIG_USB_STORAGE     /* MSC class support */
 #define CONFIG_CMD_STORAGE     /* inclue support for usb-storage cmd */
-#define CONFIG_CMD_FAT         /* inclue support for FAT/storage */
-#define CONFIG_DOS_PARTITION   /* inclue support for FAT/storage */
 
 #ifdef CONFIG_USB_KEYBOARD     /* HID class support */
 #define CONFIG_SYS_USB_EVENT_POLL