Radxa Rock-3a - edge - use mainline uboot (armbian#7401)

* rock-3a - use mainline uboot

* switch to mainline tag

config/boards/rock-3a.conf

@@ -13,3 +13,25 @@ BOOT_SUPPORT_SPI="yes"
 BOOT_SPI_RKSPI_LOADER="yes"
 IMAGE_PARTITION_TABLE="gpt"
 BOOTFS_TYPE="fat"
+
+function post_family_config_branch_edge__rock-3a_use_mainline_uboot() {
+	display_alert "$BOARD" "Mainline U-Boot overrides for $BOARD - $BRANCH" "info"
+	unset BOOTFS_TYPE # fixes armbian-install and unneeded for modern uboot anyway
+	declare -g BOOTCONFIG="rock-3a-rk3568_defconfig"
+	declare -g BOOTDELAY=1                           
+	declare -g BOOTSOURCE="https://github.com/u-boot/u-boot"
+	declare -g BOOTBRANCH="tag:v2024.10"
+	declare -g BOOTPATCHDIR="v2024.10"
+	declare -g BOOTDIR="u-boot-${BOARD}" # do not share u-boot directory
+	declare -g UBOOT_TARGET_MAP="BL31=${RKBIN_DIR}/${BL31_BLOB} ROCKCHIP_TPL=${RKBIN_DIR}/${DDR_BLOB};;u-boot-rockchip.bin u-boot-rockchip-spi.bin"
+	unset uboot_custom_postprocess write_uboot_platform write_uboot_platform_mtd # disable stuff from rockchip64_common; we're using binman here which does all the work already
+
+	# Just use the binman-provided u-boot-rockchip.bin, which is ready-to-go
+	function write_uboot_platform() {
+		dd "if=$1/u-boot-rockchip.bin" "of=$2" bs=32k seek=1 conv=notrunc status=none
+	}
+
+	function write_uboot_platform_mtd() {
+		flashcp -v -p "$1/u-boot-rockchip-spi.bin" /dev/mtd0
+	}
+}