--- ./.config	2020-09-08 13:05:48.256808776 +0000
+++ ./.config2	2020-09-08 13:31:43.994905698 +0000
@@ -799,2 +799,2 @@
-CONFIG_ENV_IS_IN_FAT=y
-# CONFIG_ENV_IS_IN_EXT4 is not set
+# CONFIG_ENV_IS_IN_FAT is not set
+CONFIG_ENV_IS_IN_EXT4=y
@@ -807,3 +807,3 @@
-CONFIG_ENV_FAT_INTERFACE="mmc"
-CONFIG_ENV_FAT_DEVICE_AND_PART="0:auto"
-CONFIG_ENV_FAT_FILE="uboot.env"
+CONFIG_ENV_EXT4_INTERFACE="mmc"
+CONFIG_ENV_EXT4_DEVICE_AND_PART="0:auto"
+CONFIG_ENV_EXT4_FILE="/boot/uboot.env"