uboot-envtools: support environment in spi-nand on bpi-r64

Default to U-Boot env in UBI if root device is not mmc block device.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Oskari Lemmela <oskari@lemmela.net>

package/boot/uboot-envtools/files/mediatek

@@ -20,9 +20,17 @@ bananapi,bpi-r64)
 	. /lib/upgrade/common.sh
 	export_bootdevice
 	export_partdevice rootdev 0
-	local envdev=/dev/$(get_partition_by_name $rootdev ubootenv)
-	ubootenv_add_uci_config "$envdev" "0x0" "0x80000" "0x80000" "1"
-	ubootenv_add_uci_config "$envdev" "0x80000" "0x80000" "0x80000" "1"
+	case "$rootdev" in
+	mmc*)
+		local envdev=/dev/$(get_partition_by_name $rootdev ubootenv)
+		ubootenv_add_uci_config "$envdev" "0x0" "0x80000" "0x80000" "1"
+		ubootenv_add_uci_config "$envdev" "0x80000" "0x80000" "0x80000" "1"
+		;;
+	*)
+		ubootenv_add_uci_config "/dev/ubi0_0" "0x0" "0x1f000" "0x1f000" "1"
+		ubootenv_add_uci_config "/dev/ubi0_1" "0x0" "0x1f000" "0x1f000" "1"
+		;;
+	esac
 	;;
 buffalo,wsr-2533dhp2)
 	ubootenv_add_uci_config "/dev/mtd3" "0x0" "0x1000" "0x20000"