Re: [PATCH v2 9/9] mmc: sh_mmcif: Use sg_miter for PIO

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On Wed, Feb 21, 2024 at 10:50 AM Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:

> > I've sent a patch, can you test?
> > https://lore.kernel.org/linux-mmc/20240220-fix-sh-mmcif-v1-1-b9d08a787c1f@xxxxxxxxxx/T/#u
>
> While that patch fixes the BUG, it does not make the eMMC work fully.
> It spews:
>
>     sh_mmcif ee200000.mmc: Timeout waiting for 2 on CMD18
>
> and no or limited data is read ("hd /dev/mmcblk..." blocks after no
> or two lines of output).
>
> I still need to revert 27b57277d9ba to restore proper operation.

Halfway there. I looked at the code again and now I think I found the
problem causing CMD18 to time out.

I've send a new 2-patch series:
https://lore.kernel.org/linux-mmc/20240221-fix-sh-mmcif-v2-0-5e521eb25ae4@xxxxxxxxxx/

Yours,
Linus Walleij





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