chris178

@tiobily no worries. you can still interrupt u-boot. In u-boot shell you can try calculating crc32 of memory regions to test memory. memtester tool does not seem to be working.

@tiobily Ram detect and training looks just fine above.... you could interrupt the boot and test memory. what OS image did you use above? I could try it on my device (also 8GB but modded). Did you try different microSD cards? Just tried @Nick A image and u-boot section is very similar. However boot continues with linux kernel at the point your debug stalled.... I can't see much clue as to why you're having that issue from the log above unfortunately... Just tried https://github.com/radxa-build/radxa-a733/releases/download/rsdk-r5/radxa-a733_bullseye_cli_r5.output_512.img.xz on a 8GB moded A7Z and it boot fine and free mem as expected...

@tiobily Is your a7z factory 8GB or modded out of curiosity (lpddr4 or lpddr5) ? Are you able to connect serial console onto uart0 (pb9, pb10) header pins (3.3V TTL uart adapter) and see right after power is applied to the board the debug of dram detection and training? Debug will show if full 8GB is being detected - once this is confirmed, we can take it from there.

Thanks Nick. In the meanwhile, would dtbo overlay, setting up CSI taken from radxa's github a733, work with kernel/u-boot of your image? Is there a way I can manually alter boot files to get this dtbo loaded? This is of course for the experiment - radxa's a733 image seems to still have a problem with ISP processor (or dtbo file affecting data formatting), as the resulting picture from the camera seems to be in a wrong color space (by the look, but I'm not an expert). I've reported the issue at https://forum.radxa.com/t/radxa-cubie-a7a-radxa-13m-214-camera/29717/7 for anyone interested.

Thank you Nick, great work - best overall image so far for the A7Z a733 board. I'm experimenting with 13M imx214 radxa camera - how to get correct device tree for your image? I see that imx214 module is compiled, but CSI interface configuration seems to be missing.