On 22. 01. 21 09:12, Sascha Hauer wrote:
On Thu, Jan 21, 2021 at 01:23:16PM +0100, Andrej Picej wrote:
Hi Sascha,
yes, unfortunately we have. We applied this just because we experienced
hangs in device booting tests. After this patch the NAND booting problems
went away. The booting failed during DMA page reading.
I just tested this again and after excluding the changes in this patch the
device fails at executing DMA commands. The boot fails in approximately one
out of 10 boots.
Where exactly did it hang? In the xloader or later in the real barebox
driver?
You probably mean that it hangs in the xloader. Sorry to ask, but I'm
still trying to understand. That would mean the ROM leaves the GPMI in
an unusable state and I really wonder how this can happen.
Sascha
Sorry for not being clear enough the first time. You are correct, it
hangs in xloader.
Maybe some additional information that may be relevant. When we boot
barebox without PBL support barebox boots without problem and NAND
behaves normal, so i guess the ROM sets the GPMI in usable state.
Just a thought: could it be that the problem is in xloader and we
somehow repair or reset the GPMI with this errata fix, so it works with
xloader?
Andrej
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