[PATCH 1/6] Revert "spi: zynq_qspi: Add parallel memories support in QSPI driver"

[Michal Simek]

On 10/22/24 23:06, Marek Vasut wrote:
> This reverts commit 1e36d34b52e7a1ebe5a2a5339d6905540f4253aa.
> 
> This parallel/stacked support breaks basic SPI NOR support,
> e.g. this no longer works:
> 
> => sf probe && sf update 0x50000000 0 0x160000
> SF: Detected s25fs512s with page size 256 Bytes, erase size 256 KiB, total 64 MiB
> device 0 offset 0x0, size 0x160000
> SPI flash failed in read step

Reverting everything seems to me too much. Tom has tested it on his HW and 
didn't see any issue. That's why better to look at code which is causing this.
You are reverting everything but likely there is specific patch which is causing 
this. Which one is it?
Which board was used for your testing? Likely we don't have access to it.
Is there any QEMU available which can be used for debugging?

> 
> Since none of this seems to be in Linux either, revert it all.

This has been discussed with Tom before. It wasn't in sync even before and we 
can't really stop development on subsystems.

Thanks,
Michal