I first used Kingston endurance SD card with Armbian Buster image. This failed due some incompability with Odroid N2 UHS implementation, but Sandisk extreme SD card worked with same image.
After successful boot runned nand-sata-install to ADATA SP 550NS38 SSD connected using VL817 SATA Adaptor (2109:0715).
Upgraded the Debian to Bullseye and installed Mesa 21.2.0 packages from experimental repositories, arm64 firefox-esr and armhf Chromium via multiarch to use widevine extracted from Chro
Many thanks for this. I played a bit more around with these and found the following logic:
With TOACODEC OUT EN and TOHDMITX one can enable analogue 3.5mm output and digital HDMI output.
With TOACODEC SRC resp. TOHDMITX I2S SRC one can select the I2S device used for 3.5mm output respectively HDMI output. I cannot get I2S A working (because there is no TDMOUT_A at all), but I2S B and I2S C work for both HDMI and 3.5mm each. I assign it like you did, I2S B to TOHDMITX I2S SRC and I2