U-Boot for ODROID-N2L (S922X)

ODROID-N2L is a Single Board Computer manufactured by Hardkernel with the following specifications:

• Amlogic S922X ARM Cortex-A53 dual-core + Cortex-A73 quad-core SoC

• 4GB DDR4 SDRAM

• HDMI 2.1 4K/60Hz display

• 40-pin GPIO header

• 1x USB 3.0 Host

• 1x USB 2.0 Host

• eMMC, microSD

• MIPI DSI Port

Schematics are available on the manufacturer website: https://wiki.odroid.com

U-Boot Compilation

$ export CROSS_COMPILE=aarch64-none-elf-
$ make odroid-n2l_defconfig
$ make

U-Boot Signing with Pre-Built FIP repo

$ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
$ cd amlogic-boot-fip
$ mkdir my-output-dir
$ ./build-fip.sh odroid-n2l /path/to/u-boot/u-boot.bin my-output-dir

Then write U-Boot to SD or eMMC with:

$ DEV=/dev/boot_device
$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440