Genio: Deprecate EFI/Grub in favor of proper uboot flow

config/boards/radxa-nio-12l.conf

@@ -5,7 +5,7 @@ BOARD_MAINTAINER="HeyMeco"
 KERNEL_TARGET="collabora"
 KERNEL_TEST_TARGET="collabora"
 BOOT_FDT_FILE="mediatek/mt8395-radxa-nio-12l.dtb"
-enable_extension "grub-with-dtb"
+SERIALCON="ttyS0:921600"
 HAS_VIDEO_OUTPUT="yes"
 
 # Post-config function for vendor branch

config/bootenv/genio.txt

@@ -0,0 +1,5 @@
+verbosity=1
+bootlogo=false
+console=both
+
+

config/bootscripts/boot-genio.cmd

@@ -0,0 +1,117 @@
+# DO NOT EDIT THIS FILE
+#
+# Please edit /boot/armbianEnv.txt to set supported parameters
+#
+
+setenv overlay_error "false"
+# default values
+setenv rootdev "LABEL=armbi_root"
+setenv verbosity "1"
+setenv console "both"
+setenv bootlogo "false"
+setenv rootfstype "ext4"
+setenv docker_optimizations "on"
+setenv earlycon "off"
+
+# Set load address for temporary file loading (armbianEnv.txt, overlays, etc)
+# Using address that doesn't conflict with kernel (0x45000000), ramdisk (0x49000000), or fdt (0x44000000)
+setenv load_addr "0x43000000"
+
+test -n "${distro_bootpart}" || distro_bootpart=1
+
+echo "Boot script loaded from ${devtype} ${devnum}:${distro_bootpart}"
+
+# get PARTUUID of first partition on SD/eMMC/UFS the boot script was loaded from
+echo "Detecting PARTUUID for ${devtype} device ${devnum}:${distro_bootpart}..."
+if test "${devtype}" = "mmc"; then part uuid mmc ${devnum}:${distro_bootpart} partuuid; fi
+if test "${devtype}" = "scsi"; then part uuid scsi ${devnum}:${distro_bootpart} partuuid; fi
+
+# Use PARTUUID if available (more reliable), otherwise fall back to rootdev label
+if test -n "${partuuid}"; then
+	echo "PARTUUID detected: ${partuuid}"
+	setenv rootdev "PARTUUID=${partuuid}"
+	echo "Set default rootdev=${rootdev}"
+else
+	echo "PARTUUID not available, keeping fallback rootdev=${rootdev}"
+fi
+
+# Load armbianEnv.txt if it exists - using direct load instead of test -e for better compatibility
+# This happens AFTER PARTUUID detection so user can override rootdev if needed
+echo "Attempting to load ${prefix}armbianEnv.txt from ${devtype} ${devnum}:${distro_bootpart} to ${load_addr}..."
+if load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}armbianEnv.txt; then
+	echo "Successfully loaded armbianEnv.txt (${filesize} bytes)"
+	if env import -t ${load_addr} ${filesize}; then
+		echo "Successfully imported environment from armbianEnv.txt"
+	else
+		echo "Warning: Failed to import environment from armbianEnv.txt"
+	fi
+else
+	echo "armbianEnv.txt not found or failed to load - using default environment"
+fi
+
+echo "Final rootdev: ${rootdev}"
+
+if test "${logo}" = "disabled"; then setenv logo "logo.nologo"; fi
+
+if test "${console}" = "display" || test "${console}" = "both"; then setenv consoleargs "console=tty1"; fi
+if test "${console}" = "serial" || test "${console}" = "both"; then setenv consoleargs "console=ttyS0,921600 ${consoleargs}"; fi
+if test "${earlycon}" = "on"; then setenv consoleargs "earlycon ${consoleargs}"; fi
+if test "${bootlogo}" = "true"; then
+	setenv consoleargs "splash plymouth.ignore-serial-consoles ${consoleargs}"
+else
+	setenv consoleargs "splash=verbose ${consoleargs}"
+fi
+
+setenv bootargs "root=${rootdev} rootwait rootfstype=${rootfstype} ${consoleargs} consoleblank=0 loglevel=${verbosity} ubootpart=${partuuid} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
+
+if test "${docker_optimizations}" = "on"; then setenv bootargs "${bootargs} cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory"; fi
+
+echo "Final bootargs: ${bootargs}"
+
+echo "Loading kernel image to ${kernel_addr_r}..."
+load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} ${prefix}Image
+echo "Loading initramfs to ${ramdisk_addr_r}..."
+load ${devtype} ${devnum}:${distro_bootpart} ${ramdisk_addr_r} ${prefix}uInitrd
+echo "Loading device tree ${fdtfile} to ${fdt_addr_r}..."
+load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}dtb/${fdtfile}
+fdt addr ${fdt_addr_r}
+fdt resize 65536
+for overlay_file in ${overlays}; do
+	if load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}dtb/mediatek/overlay/${overlay_prefix}-${overlay_file}.dtbo; then
+		echo "Applying kernel provided DT overlay ${overlay_prefix}-${overlay_file}.dtbo"
+		fdt apply ${load_addr} || setenv overlay_error "true"
+	elif load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}dtb/mediatek/overlay/${overlay_file}.dtbo; then
+		echo "Applying kernel provided DT overlay ${overlay_file}.dtbo"
+		fdt apply ${load_addr} || setenv overlay_error "true"
+	fi
+done
+for overlay_file in ${user_overlays}; do
+	if load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}overlay-user/${overlay_file}.dtbo; then
+		echo "Applying user provided DT overlay ${overlay_file}.dtbo"
+		fdt apply ${load_addr} || setenv overlay_error "true"
+	fi
+done
+if test "${overlay_error}" = "true"; then
+	echo "Error applying DT overlays, restoring original DT"
+	load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}dtb/${fdtfile}
+else
+	if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}dtb/mediatek/overlay/${overlay_prefix}-fixup.scr; then
+		load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}dtb/mediatek/overlay/${overlay_prefix}-fixup.scr
+		echo "Applying kernel provided DT fixup script (${overlay_prefix}-fixup.scr)"
+		source ${load_addr}
+	fi
+	if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}fixup.scr; then
+		load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}fixup.scr
+		echo "Applying user provided fixup script (fixup.scr)"
+		source ${load_addr}
+	fi
+fi
+
+echo "Trying 'kaslrseed' command... Info: 'Unknown command' can be safely ignored since 'kaslrseed' does not apply to all boards."
+kaslrseed # @TODO: This gives an error (Unknown command ' kaslrseed ' - try 'help') on many devices since CONFIG_CMD_KASLRSEED is not enabled
+
+echo "Booting kernel from ${kernel_addr_r} with initramfs at ${ramdisk_addr_r} and DTB at ${fdt_addr_r}..."
+booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
+
+# Recompile with:
+# mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr

config/sources/families/genio.conf

@@ -4,15 +4,19 @@ declare -g ARCH=arm64
 declare -g GOVERNOR=performance
 declare -g INSTALL_ARMBIAN_FIRMWARE=no
 
-# GRUB and UEFI configuration
-declare -g BOOTCONFIG="none" # Skip U-Boot completely
+# U-Boot bootscript configuration
+declare -g BOOTCONFIG="none" # Skip U-Boot compilation
+declare -g BOOTSCRIPT="boot-genio.cmd:boot.cmd" # Use custom boot script for Genio (compatible with U-Boot without itest/setexpr/bootz)
+declare -g BOOTENV_FILE="genio.txt" # Boot environment template for armbianEnv.txt
+
+# GRUB and UEFI configuration (legacy, may be removed)
 declare -g UEFI_GRUB_TERMINAL="gfxterm" # Use graphics terminal for GRUB
 declare -g UEFI_GRUB_TIMEOUT=3 # GRUB menu timeout
 declare -g SERIALCON="ttyS0" # Serial console for GRUB | TODO: Figure out if we can get Grub via HDMI too
 declare -g BOARD_FIRMWARE_INSTALL="-full" # Install full firmware for UEFI support
 
 # GRUB configuration with DTB support
-declare -g GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0,921600 root=LABEL=armbi_root rootwait rootfstype=ext4 efi=noruntime"
+declare -g GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0,921600 root=LABEL=armbi_root rootwait rootfstype=ext4 efi=noruntime"
 
 # Kernel configuration
 case $BRANCH in