Re: [PATCH v3 0/2] Enable 64-bit polling mode for R-Car Gen3 and RZ/G2+ family

[Geert Uytterhoeven <geert@linux-m68k.org>]

Hi Wolfram,

On Fri, 29 Aug 2025 at 12:26, Wolfram Sang
<wsa+renesas@sang-engineering.com> wrote:
> > I believe some of the SoCs that do not support 64-bit accesses, do
> > support 32-bit accesses. Do you think it would be worthwhile adding
> > support for that, too?
>
> We have that already? Check the context after the chunk added to
> tmio_mmc_core.c:
>
>         if (host->pdata->flags & TMIO_MMC_32BIT_DATA_PORT) {
>                 u32 data = 0;
>                 u32 *buf32 = (u32 *)buf;
>         ...

OK, thanks, then I misremembered what exactly is supported and what
is not...
But this is set only on RZ/A1, so my question should be: are there
any other SoCs where TMIO_MMC_32BIT_DATA_PORT should be set?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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