common: Add support for environment file in EXT4.
This is an enhancement that permits storing the environment file on an
EXT4 partition such as the root filesystem. It is based on the existing
FAT environment file code.
diff --git a/common/Makefile b/common/Makefile
index 117178a..84882d7 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -46,6 +46,7 @@
obj-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o
obj-$(CONFIG_ENV_IS_IN_MMC) += env_mmc.o
obj-$(CONFIG_ENV_IS_IN_FAT) += env_fat.o
+obj-$(CONFIG_ENV_IS_IN_EXT4) += env_ext4.o
obj-$(CONFIG_ENV_IS_IN_NAND) += env_nand.o
obj-$(CONFIG_ENV_IS_IN_NVRAM) += env_nvram.o
obj-$(CONFIG_ENV_IS_IN_ONENAND) += env_onenand.o
@@ -105,6 +106,7 @@
obj-$(CONFIG_ENV_IS_NOWHERE) += env_nowhere.o
obj-$(CONFIG_ENV_IS_IN_MMC) += env_mmc.o
obj-$(CONFIG_ENV_IS_IN_FAT) += env_fat.o
+obj-$(CONFIG_ENV_IS_IN_EXT4) += env_ext4.o
obj-$(CONFIG_ENV_IS_IN_NAND) += env_nand.o
obj-$(CONFIG_ENV_IS_IN_SPI_FLASH) += env_sf.o
obj-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o