U-Boot for ODROID-GO-ULTRA (S922X)
The ODROID GO ULTRA is a portable gaming device with the following characteristics:
Amlogic S922X SoC
RK817 & RK818 PMICs
2GiB LPDDR4
On board 16GiB eMMC
Micro SD Card slot
5inch 854×480 MIPI-DSI TFT LCD
Earphone stereo jack, 0.5Watt 8Ω Mono speaker
Li-Polymer 3.7V/4000mAh Battery
USB-A 2.0 Host Connector
x16 GPIO Input Buttons
2x ADC Analog Joysticks
USB-C Port for USB2 Device and Charging
U-Boot Compilation
$ export CROSS_COMPILE=aarch64-none-elf-
$ make odroid-go-ultra_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-go-ultra /path/to/u-boot/u-boot.bin my-output-dir
Then write the image 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