ARM: imx: Fix incorrect usage of CONFIG_SYS_MMC_ENV_PART

When running the "save" command several times on a mx6qsabresd we see:

U-Boot > save
Saving Environment to MMC...
Writing to MMC(1)... done
U-Boot > save
Saving Environment to MMC...
MMC partition switch failed
U-Boot > save
Saving Environment to MMC...
Writing to MMC(1)... done
U-Boot > save
Saving Environment to MMC...
MMC partition switch failed
U-Boot > save
Saving Environment to MMC...
Writing to MMC(1)... done
U-Boot > save
Saving Environment to MMC...
MMC partition switch failed

This issue is caused by the incorrect usage of CONFIG_SYS_MMC_ENV_PART.

CONFIG_SYS_MMC_ENV_PART should be used to specify the mmc partition that stores
the environment variables.

On some imx boards it is been incorrectly used to pass the partition of kernel
and dtb files for the 'mmcpart' script variable.

Remove the CONFIG_SYS_MMC_ENV_PART usage and configure the 'mmcpart' variable
directly.

Reported-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>

5 files changed, 3 insertions, 7 deletions

diff --git a/include/configs/mx53ard.h b/include/configs/mx53ard.h
index 41974b1262..b0a965fbba 100644
--- a/include/configs/mx53ard.h
+++ b/include/configs/mx53ard.h
@@ -118,7 +118,7 @@
 	"boot_fdt=try\0" \
 	"ip_dyn=yes\0" \
 	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
-	"mmcpart=" __stringify(CONFIG_SYS_MMC_ENV_PART) "\0" \
+	"mmcpart=2\0" \
 	"mmcroot=/dev/mmcblk0p3 rootwait rw\0" \
 	"update_sd_firmware_filename=u-boot.imx\0" \
 	"update_sd_firmware=" \
@@ -240,7 +240,6 @@
 #define CONFIG_ENV_SIZE        (8 * 1024)
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV	0
-#define CONFIG_SYS_MMC_ENV_PART	2
 
 #define CONFIG_OF_LIBFDT
 
diff --git a/include/configs/mx6qsabre_common.h b/include/configs/mx6qsabre_common.h
index 7298a7692e..bfaa420ed0 100644
--- a/include/configs/mx6qsabre_common.h
+++ b/include/configs/mx6qsabre_common.h
@@ -97,7 +97,7 @@
 	"fdt_high=0xffffffff\0"	  \
 	"initrd_high=0xffffffff\0" \
 	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
-	"mmcpart=" __stringify(CONFIG_SYS_MMC_ENV_PART) "\0" \
+	"mmcpart=1\0" \
 	"mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \
 	"update_sd_firmware=" \
 		"if test ${ip_dyn} = yes; then " \
diff --git a/include/configs/mx6qsabreauto.h b/include/configs/mx6qsabreauto.h
index 947ea60094..76f7812069 100644
--- a/include/configs/mx6qsabreauto.h
+++ b/include/configs/mx6qsabreauto.h
@@ -35,7 +35,6 @@
 #define CONFIG_SYS_FSL_USDHC_NUM	2
 #if defined(CONFIG_ENV_IS_IN_MMC)
 #define CONFIG_SYS_MMC_ENV_DEV		0
-#define CONFIG_SYS_MMC_ENV_PART		1	/* Boot partition 1 */
 #endif
 
 /* I2C Configs */
diff --git a/include/configs/mx6qsabresd.h b/include/configs/mx6qsabresd.h
index 3b8d752eed..44f07cbe45 100644
--- a/include/configs/mx6qsabresd.h
+++ b/include/configs/mx6qsabresd.h
@@ -29,7 +29,6 @@
 #define CONFIG_SYS_FSL_USDHC_NUM	3
 #if defined(CONFIG_ENV_IS_IN_MMC)
 #define CONFIG_SYS_MMC_ENV_DEV		1	/* SDHC3 */
-#define CONFIG_SYS_MMC_ENV_PART		1	/* Boot partition 1 */
 #endif
 
 #endif                         /* __MX6QSABRESD_CONFIG_H */
diff --git a/include/configs/wandboard.h b/include/configs/wandboard.h
index 823e17b4dd..5593f1c533 100644
--- a/include/configs/wandboard.h
+++ b/include/configs/wandboard.h
@@ -118,7 +118,7 @@
 	"boot_fdt=try\0" \
 	"ip_dyn=yes\0" \
 	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
-	"mmcpart=" __stringify(CONFIG_SYS_MMC_ENV_PART) "\0" \
+	"mmcpart=2\0" \
 	"mmcroot=/dev/mmcblk0p3 rootwait rw\0" \
 	"update_sd_firmware_filename=u-boot.imx\0" \
 	"update_sd_firmware=" \
@@ -232,7 +232,6 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_ENV_OFFSET		(6 * 64 * 1024)
 #define CONFIG_SYS_MMC_ENV_DEV		0
-#define CONFIG_SYS_MMC_ENV_PART		2
 
 #define CONFIG_OF_LIBFDT
 #define CONFIG_CMD_BOOTZ