Found two related discussion from other SBCs that seems to have similar issues, the one points to an hardware issue:
http://forum.banana-pi.org/t/sunxi-mmc-1...error/9891
Hence, maybe you have a different hardware revision of the clusterboard, or a different / older type of eMMC? My 64GB module says "A64-DB-E MMC-v1_0" on the back.
The other discusses a possible software workaround by switching from the faster but buggy "HS200" to slower the "DRR52" mode:
https://184.105.72.32/forum/index.php?topic=7452.0
I'll try the proposed software fix later today.
Edit: Hmm, I still have a super old 16GB eMMC from an Odroid board. Seems to use the same connector. Maybe that one works?
Hmm, maybe some progress, but still not working. I applied the above mentioned fix with "drr" mode and now the dmesg looks like this:
http://forum.banana-pi.org/t/sunxi-mmc-1...error/9891
Hence, maybe you have a different hardware revision of the clusterboard, or a different / older type of eMMC? My 64GB module says "A64-DB-E MMC-v1_0" on the back.
The other discusses a possible software workaround by switching from the faster but buggy "HS200" to slower the "DRR52" mode:
https://184.105.72.32/forum/index.php?topic=7452.0
I'll try the proposed software fix later today.
Edit: Hmm, I still have a super old 16GB eMMC from an Odroid board. Seems to use the same connector. Maybe that one works?
Hmm, maybe some progress, but still not working. I applied the above mentioned fix with "drr" mode and now the dmesg looks like this:
Quote:[ 2.509337] sunxi-mmc 1c11000.mmc: initialized, max. request size: 2048 KB, uses new timings mode
[ 2.614059] mmc2: error -110 whilst initialising MMC card