[U-Boot] [PATCH] MX35: mx35pdk: add support for MMC

[U-Boot] [PATCH] MX35: mx35pdk: add support for MMC

[Stefano Babic]

Add support for SD card and change the default
environment due to increased u-boot size.

Signed-off-by: Stefano Babic <sbabic@denx.de>
---
 board/freescale/mx35pdk/mx35pdk.c |   25 +++++++++++++++++++++++++
 include/configs/mx35pdk.h         |   17 +++++++++++++++--
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/board/freescale/mx35pdk/mx35pdk.c b/board/freescale/mx35pdk/mx35pdk.c
index bc415b8..0c2d946 100644
--- a/board/freescale/mx35pdk/mx35pdk.c
+++ b/board/freescale/mx35pdk/mx35pdk.c
@@ -32,6 +32,8 @@
 #include <i2c.h>
 #include <pmic.h>
 #include <fsl_pmic.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
 #include <mc9sdz60.h>
 #include <mc13892.h>
 #include <linux/types.h>
@@ -275,3 +277,26 @@ int board_eth_init(bd_t *bis)
 
 	return rc;
 }
+
+#if defined(CONFIG_FSL_ESDHC)
+
+struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR, 1};
+
+int board_mmc_init(bd_t *bis)
+{
+	/* configure pins for SDHC1 only */
+	mxc_request_iomux(MX35_PIN_SD1_CMD, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_SD1_CLK, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_SD1_DATA0, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_SD1_DATA1, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_SD1_DATA2, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_SD1_DATA3, MUX_CONFIG_FUNC);
+
+	return fsl_esdhc_initialize(bis, &esdhc_cfg);
+}
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	return !(mc9sdz60_reg_read(MC9SDZ60_REG_DES_FLAG) & 0x4);
+}
+#endif
diff --git a/include/configs/mx35pdk.h b/include/configs/mx35pdk.h
index 6eb5da5..d31edb9 100644
--- a/include/configs/mx35pdk.h
+++ b/include/configs/mx35pdk.h
@@ -111,6 +111,12 @@
 #define CONFIG_NET_RETRY_COUNT	100
 #define CONFIG_CMD_DATE
 
+#define CONFIG_CMD_MMC
+#define CONFIG_DOS_PARTITION
+#define CONFIG_EFI_PARTITION
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+
 #define CONFIG_BOOTDELAY	3
 
 #define CONFIG_LOADADDR		0x80800000	/* loadaddr env var */
@@ -246,6 +252,13 @@
 #define CONFIG_MXC_NAND_HWECC
 #define CONFIG_SYS_NAND_LARGEPAGE
 
+/* mmc driver */
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_FSL_ESDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+#define CONFIG_SYS_FSL_ESDHC_NUM	1
+
 /*
  * Default environment and default scripts
  * to update uboot and load kernel
@@ -287,8 +300,8 @@
 	"u-boot=" xstr(CONFIG_HOSTNAME) "/u-boot.bin\0"			\
 	"load=tftp ${loadaddr} ${u-boot}\0"				\
 	"uboot_addr=" xstr(CONFIG_SYS_MONITOR_BASE) "\0"		\
-	"update=protect off ${uboot_addr} +40000;"			\
-		"erase ${uboot_addr} +40000;"				\
+	"update=protect off ${uboot_addr} +80000;"			\
+		"erase ${uboot_addr} +80000;"				\
 		"cp.b ${loadaddr} ${uboot_addr} ${filesize}\0"		\
 	"upd=if run load;then echo Updating u-boot;if run update;"	\
 		"then echo U-Boot updated;"				\
-- 
1.7.9.5