If you have variant with LCD display – here you can download driver.
Important: To be able to boot clean Armbian mainline based u-boot / kernel experiences, you need to remove incompatible Petitboot loader that is shipped with the board.
Try one of the following methods:
This is now the preferred method. It is easier, and be performed without a display via SSH
odroidhc4:~:# ls -ltr /dev/mtd*
crw------- 1 root root 90, 0 Nov 6 21:38 /dev/mtd0
brw-rw---- 1 root disk 31, 0 Nov 6 21:38 /dev/mtdblock0
crw------- 1 root root 90, 1 Nov 6 21:38 /dev/mtd0ro
odroidhc4:~:# flash_erase /dev/mtd0 0 0
Erasing 4 Kibyte @ fff000 -- 100 % complete
odroidhc4:~:#
Attach the device to a display and keyboard. Power on. Petitboot will load
From the Petitboot menu, go for “Exit to shell” and these commands to remove the Petitboot:
# flash_eraseall /dev/mtd0
# flash_eraseall /dev/mtd1
# flash_eraseall /dev/mtd2
# flash_eraseall /dev/mtd3This will make your SPI flash memory empty and would start from SD on next boot.
In case you want to put Petitboot back to the board, user those instructions.
FAN support
Create a file in /etc/fancontrol with the following content:
INTERVAL=10 DEVPATH=hwmon0=devices/virtual/thermal/thermal_zone0 hwmon2=devices/platform/pwm-fan DEVNAME=hwmon0=cpu_thermal hwmon2=pwmfan FCTEMPS=hwmon2/pwm1=hwmon0/temp1_input FCFANS= hwmon2/pwm1=hwmon2/fan1_input MINTEMP=hwmon2/pwm1=50 MAXTEMP=hwmon2/pwm1=60 MINSTART=hwmon2/pwm1=20 MINSTOP=hwmon2/pwm1=28 MINPWM=hwmon2/pwm1=0 MAXPWM=hwmon2/pwm1=255
followed by:
sudo systemctl restart fancontrol
With kernel 5.15.y -> you need to remove FCFANS=hwmon2/pwm1=hwmon2/fan1_input in /etc/fancontrol
Serial console:
Blue color line: Tool Pin TXD, orange color: Tool Pin RXD, black: Tool Pin GND
How to boot from SD card? After power on, quickly press the Function key 3 times in 2 seconds, then release the key. More at official manual.
To be able to boot Armbian SD card image and install Armbian to eMMC, use one of the methods to boot into upgrade mode. If you have most recent board revision (1.4 ->) then you only need to quickly press the function key (middle) 3 times in 2 seconds. Release and boot will proceed from SD card. Then use nand-sata-install utility to flash to eMMC.
Serial console:
Blue color line: Tool Pin TXD, orange color: Tool Pin RXD, black: Tool Pin GND
Support for generic RK3228A, RK3228B and RK3229 TV boxes, with various commercial names and manufacturers (MXQ 4k, MXQ Pro 4k, V88 Mars, A8, Model X, etc…)
Due to the really large hardware variety, there is the rare chance that the images proposed here may not boot. If a bad image is burned in eMMC, the box may not boot anymore forcing you to follow the unbrick section at the bottom of this post.
Forum thread with guides, suggestions, support, hardware acceleration multimedia support: https://forum.armbian.com/topic/12656-wip-armbian-for-rk322x-devices/
Quick installation instructions on eMMC:
Quick installation instructions on NAND:
Quick installation instructions to boot from SD Card:
Boot device order:
With Armbian also comes mainline U-boot. If you install Armbian or just the bootloader in the eMMC or the Jump Start on internal NAND, the bootloader will look for valid bootable images in this order:
Unbrick:
Rockchip devices cannot be bricked. If the internal flash does not contain a bootable system, they will always boot from the sdcard. If, for a reason, the bootable system on the internal flash is corrupted or is unable to boot correctly, you can always force the maskrom mode shorting the eMMC clock pin on the PCB. Here there is the procedure, but you can also google around if you get stuck on a faulty bootloader, the technique is pretty simple and requires a simple screwdriver.