OpenWrt has test images for Banana Pi M2 Ultra, available at the following link:
https://downloads.openwrt.org/snapshots/targets/sunxi/cortexa7/
OpenWrt has test images for Banana Pi M2 Ultra, available at the following link:
https://downloads.openwrt.org/snapshots/targets/sunxi/cortexa7/
Failed to boot the board with latest snapshot build, when boot to initializing eMMC
[ 1.376746] libphy: stmmac: probed
[ 1.389128] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[ 1.394664] mmc0: host does not support reading read-only switch, assuming write-enable
[ 1.402844] mmc0: new SDHC card at address 0001
[ 1.408341] mmcblk0: mmc0:0001 SD8GB 7.28 GiB
[ 1.414442] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 1.419981] mmcblk0: p1 p2
[ 1.426302] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[
U-Boot SPL 2020.04 (Jul 20 2021 - 03:16:48 +0000)
DRAM: 2048 MiB
Trying to boot from MMC1
Can you try the stable version of OpenWrt?
https://downloads.openwrt.org/releases/21.02.0-rc3/targets/sunxi/cortexa7/