Comment # 11 on bug 1205777 from Johannes Kastl

Hi Michal,

> Indeed, the situation is very much similar on rk3399 - the u-boot driver is likely missing a step in initializing the mmc bus or card.

This means there are two problems:
- u-boot failing to detect the sdcard it was booted from
- grub2 being loaded but failing to detect the root device or boot device or
load the kernel or anything like that.

The latter one is the one, that I cannot solve even if the u-boot watchdog were
working. A grub2 hanging with "Press any key to continue" makes the device
unreachable and useless.

Any idea how to tackle that?

Kind Regards,
Johannes