board: ti: enable support for writing to fat partition

Enable support for writing to FAT partitions on
TI's boards.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>

board/ti/common/Kconfig

@@ -27,6 +27,7 @@ config TI_COMMON_CMD_OPTIONS
 	imply CMD_EXT4_WRITE
 	imply CMD_FASTBOOT if FASTBOOT
 	imply CMD_FAT
+	imply FAT_WRITE if CMD_FAT
 	imply CMD_FS_GENERIC
 	imply CMD_GPIO
 	imply CMD_GPT

include/configs/am43xx_evm.h

@@ -75,7 +75,6 @@
 #define FAT_ENV_INTERFACE		"mmc"
 #define FAT_ENV_DEVICE_AND_PART		"0:1"
 #define FAT_ENV_FILE			"uboot.env"
-#define CONFIG_FAT_WRITE
 
 #define CONFIG_SPL_LDSCRIPT		"arch/arm/mach-omap2/u-boot-spl.lds"
 

include/configs/ti_armv7_common.h

@@ -145,14 +145,6 @@
 #define CONFIG_SUPPORT_RAW_INITRD
 
 /*
- * Common filesystems support.  When we have removable storage we
- * enabled a number of useful commands and support.
- */
-#if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
-#define CONFIG_FAT_WRITE
-#endif
-
-/*
  * Our platforms make use of SPL to initalize the hardware (primarily
  * memory) enough for full U-Boot to be loaded. We make use of the general
  * SPL framework found under common/spl/.  Given our generally common memory