Re: [RFC PATCH] memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode

From: Geert Uytterhoeven
Date: Tue Mar 08 2022 - 03:30:21 EST


Hi Wolfram,

On Tue, Mar 8, 2022 at 9:21 AM Wolfram Sang
<wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
> > Wolfram: which platform did you use for QSPI testing, so I don't
> > break that again?
>
> I did my refactoring using an Eagle board and once this worked, I
> enabled QSPI on Falcon. All remotely. Condor was another candidate but
> it was broken in the lab at that time.

OK, thanks!

> > Without that (e.g. old H3 R-Car ES1.0), it crashes with an
>
> Frankly, I wouldn't trust ES1.0 as a reliable source for QSPI. Could you
> start with the newest Gen3 board you have and then go to previous ones?

This is not QSPI, but HF.

Building a new firmware for R-Car H3 ES1.0 with HF unlocked will be
complicated, as it is not supported by upstream TF-A.

Note that HF also fails to probe on R-Car M3-W and M3-N ES1.0.
Haven't tried it on R-Car E3 yet. All those have a (not so new) TF-A,
but built with RCAR_RPC_HYPERFLASH_LOCKED=0.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds