rock-5b-plus: add edge u-boot config from rock-5b

config/boards/rock-5b-plus.csc

@@ -25,3 +25,39 @@ function post_family_tweaks__rock5b_naming_audios() {
 
 	return 0
 }
+
+# Mainline u-boot tree
+# see rock-5b.conf and https://github.com/armbian/build/pull/7135
+function post_family_config_branch_edge__rock-5b_use_mainline_uboot() {
+	display_alert "$BOARD" "mainline (next branch) u-boot overrides for $BOARD / $BRANCH" "info"
+
+	declare -g BOOTCONFIG="rock5b-rk3588_defconfig"                       # override the default for the board/family
+	declare -g BOOTDELAY=1                                                # Wait for UART interrupt to enter UMS/RockUSB mode etc
+	declare -g BOOTSOURCE="https://github.com/u-boot/u-boot.git"          # We ❤️ Mainline tree
+	declare -g BOOTBRANCH="tag:v2024.10"                                  #
+	declare -g BOOTPATCHDIR="v2024.10"                                    # empty; defconfig changes are done in hook below
+	declare -g BOOTDIR="u-boot-${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 "$1/u-boot-rockchip-spi.bin" /dev/mtd0
+	}
+}
+
+function post_config_uboot_target__extra_configs_for_rock5b_mainline_environment_in_spi() {
+	[[ "${BRANCH}" != "edge" ]] && return 0
+
+	display_alert "$BOARD" "u-boot configs for ${BOOTBRANCH} u-boot config BRANCH=${BRANCH}" "info"
+	run_host_command_logged scripts/config --set-val CONFIG_ENV_IS_NOWHERE "n"
+	run_host_command_logged scripts/config --set-val CONFIG_ENV_IS_IN_SPI_FLASH "y"
+	run_host_command_logged scripts/config --set-val CONFIG_ENV_SECT_SIZE_AUTO "y"
+	run_host_command_logged scripts/config --set-val CONFIG_ENV_OVERWRITE "y"
+	run_host_command_logged scripts/config --set-val CONFIG_ENV_SIZE "0x20000"
+	run_host_command_logged scripts/config --set-val CONFIG_ENV_OFFSET "0xc00000"
+}