Hi Niklas,
On Wed, Jan 11, 2017 at 9:35 AM, Niklas Söderlund
<niklas.soderlund@xxxxxxxxxxxx> wrote:
> On 2017-01-10 23:30:43 +0100, Wolfram Sang wrote:
>> > Oddly enough the error are only printed when I insert the SD card in the
>> > mmc0 slot. I can insert/eject the card multiple times in mmc1 and no
>> > error but the first insertion in mmc0 and boom. Only difference I can
>> > see are the clock speed between mmc0 and mmc1.
>>
>> Can you try this patch?
>>
>> From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
>> Date: Sun, 13 Nov 2016 11:10:09 +0100
>> Subject: [PATCH] pinctrl: pfc: r8a7795: WIP: hardcode TDSEL value
>>
>> Otherwise, AC-180M won't get probed with SDR50 and EMMY-W1 has more
>> tuning errors with SDR104.
>>
>> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
>> ---
>> drivers/pinctrl/sh-pfc/pfc-r8a7795.c | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
>
> I'm doing my tests on Koelsch so I'm afraid setting the TDSEL in
> pfc-r8a7795.c won't do much ;-) Nevertheless I tried to mimic the patch
> for Koelsch but found the documentation lacking and where unable to do
> so. That is I found a TDSEL register but no documentation of its
> content.
The datasheet does mention which bits are for SD[023]_CLK.
Actual bit patterns should be the same as on r8a7795.
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
