I've compiled LibreELEC for my NanoPi K2 by FriendlyArm:
- Version: devel-20190915174406-76b3023 (master branch)
- Command used for compiling: PROJECT=Amlogic ARCH=arm DEVICE=AMLGX UBOOT_SYSTEM=nanopi-k2 make image
Image was created and burnt to SD card.
PROBLEM 1: SD card did not boot
- On powering on NanoPi K2, UART messages indicated bootloader failure (looping "BL1" messages).
- Solution is to write the compiled bootloader manually to the SD card, as follows:
* Replace sdX with SD card reader device location.
- After manually writing the bootloader, LibreELEC will start up successfully.
- Apparently, u-boot was compiled successfully but did not get written to the image or was written wrongly. I believe this can be easily addressed in the bootloader installation script?
PROBLEM 2: WiFi and Bluetooth firmware failed to load
- LibreELEC failed to show WIFI connections nor detect Bluetooth on the NanoPi K2.
- The chipset for WIFI and Bluetooth is AP6212 (brcmfmac43430a0)
- dmesg | grep brcm shows the following line:
- Solution (WIFI): The file brcmfmac43430a0-sdio.bin is missing in lib/firmware/brcm, so pull the relevant files from Armbian firmware and place them in LibreELEC's "additional firmware" directory:
- LibreELEC:/ # cd /storage/.config/
- LibreELEC:~/.config # mkdir -p firmware/brcm
- LibreELEC:~/.config # cd firmware/brcm
- LibreELEC:~/.config/firmware/brcm # wget https://github.com/armbian/firmware/raw/master/brcm/brcmfmac43430a0-sdio.bin
- LibreELEC:~/.config/firmware/brcm # wget https://github.com/armbian/firmware/raw/master/brcm/brcmfmac43430a0-sdio.txt -O brcmfmac43430a0-sdio.friendlyarm,nanopi-k2.txt
- After doing the above, reboot and WiFi will work.
- Bluetooth still doesn't work - maybe it's disabled in NanoPi K2's dtb?
- Ideally, we should have these files present in the build itself. I note they are missing from LibreELEC/brcmfmac_sdio-firmware (where the firmware files are obtained during compilation).
I have another issue with playing DRM content (e.g. Netflix). I've mentioned this in balbes150 's thread but I should probably post it under Bug Reports. As I'm not sure if it relates only to the NanoPi K2 or devices with Mali-450 GPUs in general (nobody has verified so far), I shall post a separate report.
Thank you all for your contributions!