diff --git a/config/boards/radxa-nio-12l.conf b/config/boards/radxa-nio-12l.conf
index 29c9b3e59c..55f852f81b 100644
--- a/config/boards/radxa-nio-12l.conf
+++ b/config/boards/radxa-nio-12l.conf
@@ -5,10 +5,12 @@ BOARDFAMILY="genio"
 BOARD_MAINTAINER="HeyMeco"
 KERNEL_TARGET="collabora"
 KERNEL_TEST_TARGET="collabora"
-BOOT_FDT_FILE="mediatek/mt8395-radxa-nio-12l.dtb"
+BOOT_FDT_FILE="mediatek/mt8395-radxa-nio-12l.dtb" # automatically patched by u-boot with autodetected memory size
 SERIALCON="ttyS0:921600"
+SRC_CMDLINE="splash plymouth.ignore-serial-consoles console=ttyS0,921600 console=tty0" # for extlinux/EXT=u-boot-menu
 HAS_VIDEO_OUTPUT="yes"
 declare -g BOARD_FIRMWARE_INSTALL="-full"
-declare -g BOOTCONFIG="genio_1200_radxa_nio_12l_d8_defconfig"
-declare -g BOOT_SOC="mt8395"                    # the NIO-12L is a MT8395, but everything is named mt8195 in OPTEE/TF-A/Libbase/etc.
-declare -g MEDIATEK_GENIO_SOC_PLATFORM="mt8195" # The actual PLAT= for TF-A, libbase, etc.
+declare -g BOOTCONFIG="genio_1200_radxa_nio_12l_d8_defconfig" # d4/d8/d16 are irrelevant, since we've patches to autodetect, for both u-boot and kernel
+declare -g BOOT_SOC="mt8395"                                  # the NIO-12L is a MT8395, but everything is named mt8195 in OPTEE/TF-A/Libbase/etc.
+declare -g MEDIATEK_GENIO_SOC_PLATFORM="mt8195"               # The actual PLAT= for TF-A, libbase, etc.
+# blobs live at https://github.com/armbian/mtkbin/tree/main/radxa-nio-12l