add board bigtreetech-cb2: BigTreeTech CB2

config/boards/bigtreetech-cb2.csc

@@ -0,0 +1,48 @@
+# Rockchip RK3566 quad core 2GB-8GB GBE eMMC NVMe USB3 WiFi
+BOARD_NAME="BigTreeTech CB2"
+BOARDFAMILY="rockchip64"
+BOARD_MAINTAINER=""
+BOOTCONFIG="bigtreetech-cb2-rk3566_defconfig"
+BOOT_SOC="rk3566"
+KERNEL_TARGET="current,edge"
+KERNEL_TEST_TARGET="current"
+BOOT_FDT_FILE="rockchip/rk3566-bigtreetech-cb2.dtb"
+IMAGE_PARTITION_TABLE="gpt"
+BOOT_SCENARIO="spl-blobs"
+OVERLAY_PREFIX='rk3566'
+FULL_DESKTOP="yes"
+BOOT_LOGO="desktop"
+
+# TODO: replace with BOOT_SCENARIO=binman when it gets merged and in good shape
+function post_family_config__bigtreetech-cb2_uboot_overrides() {
+	display_alert "$BOARD" "mainline u-boot overrides" "info"
+
+	DDR_BLOB="rk35/rk3566_ddr_1056MHz_v1.21.bin"
+	BL31_BLOB="rk35/rk3568_bl31_v1.44.elf" # NOT a typo, bl31 is shared across 68 and 66
+
+	declare -g BOOTDELAY=1                            # Wait for UART interrupt to enter UMS/RockUSB mode etc
+	declare -g BOOTSOURCE="https://github.com/u-boot/u-boot.git"
+	declare -g BOOTBRANCH="tag:v2024.10"
+	declare -g BOOTPATCHDIR="v2024.10/board_bigtreetech-cb2"
+	#declare -g BOOTDIR="u-boot-${BOARD}"
+	declare -g UBOOT_TARGET_MAP="BL31=${RKBIN_DIR}/${BL31_BLOB} ROCKCHIP_TPL=${RKBIN_DIR}/${DDR_BLOB};;u-boot-rockchip.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
+	}
+
+	function write_uboot_platform_mtd() {
+		declare -a extra_opts_flashcp=("--verbose")
+		if flashcp -h | grep -q -e '--partition'; then
+			echo "Confirmed flashcp supports --partition -- read and write only changed blocks." >&2
+			extra_opts_flashcp+=("--partition")
+		else
+			echo "flashcp does not support --partition, will write full SPI flash blocks." >&2
+		fi
+		flashcp "${extra_opts_flashcp[@]}" "${1}/u-boot-rockchip-spi.bin" /dev/mtd0
+	}
+}
+
+# vim: ft=bash