[meta-xilinx] Kernel Panic: SD Boot on zcu102-zynqmp

Mike Looijmans mike.looijmans at topic.nl
Wed Mar 29 03:26:10 PDT 2017

On 28-03-17 02:22, Giordon Stark wrote:
> I seem to have forgotten PMUFW. So I've added that in, and I manage to get
> further.
> https://gist.github.com/kratsg/932ca6ff01fb489ee190ea3902c3fc73
> From what I can tell, it's not mounting the rootfs correctly (error -2) but it
> seems to be hinting that I should give it an `init=` command.... but that
> feels like something else is wrong.

What I've found so far is that the power management for the SD card is somehow 
broken in the pmufw. To work around it, I disabled the ZYNQMP_PM_DOMAINS 
config option in the kernel. With ZYNQMP_PM_DOMAINS the kernel cannot access 
the SD card if pmufw has been loaded, without ZYNQMP_PM_DOMAINS the SD card 
works okay and the system boots properly.

Kind regards,

Mike Looijmans
System Expert

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