From: Dirk Behme <dirk.behme@de.bosch.com>
To: linux-sh@vger.kernel.org
Subject: Re: [RFC 0/6] mmc: sdhi: add basic r8a7795 support
Date: Fri, 22 Jan 2016 11:30:32 +0000 [thread overview]
Message-ID: <56A212D8.3060105@de.bosch.com> (raw)
In-Reply-To: <1453220461-2598-1-git-send-email-wsa@the-dreams.de>
On 22.01.2016 11:32, Yoshihiro Shimoda wrote:
> Hi Dirk-san, Wolfram-san,
>
>>> And third, from reading the r8a7795 manual I think the manual talks about
>>>
>>> https://github.com/dirkbehme/linux-renesas-rcar-gen3/commit/f2a727c859916d59dca85dbb72c1b61da3fd6da0
>>>
>>> But testing this it doesn't work. So either the manual is wrong, or I missed
>>> anything else.
>>
>> I have seen this patch and my gut feeling is that it won't make a
>> difference? SCLKDIVEN is like CBUSY plus some more cycles AFAIU. But I
>> am not working on DMA issues now, this has to wait.
>
> I'm not sure we have to use CBSY bit instead of SCLKDIVEN on r8a7795.
The r8a7795 manual I have has several
"Do / Do not xxx when the CBSY bit in SD_INFO2 is set to x"
It always talks about CBSY, not SCLKDIVEN.
Best regards
Dirk
next prev parent reply other threads:[~2016-01-22 11:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 16:20 [RFC 0/6] mmc: sdhi: add basic r8a7795 support Wolfram Sang
2016-01-19 16:56 ` Dirk Behme
2016-01-22 8:54 ` Wolfram Sang
2016-01-22 10:32 ` Yoshihiro Shimoda
2016-01-22 11:26 ` Dirk Behme
2016-01-22 11:30 ` Dirk Behme [this message]
2016-01-22 11:36 ` Dirk Behme
2016-01-22 21:30 ` Wolfram Sang
2016-01-25 8:51 ` Yoshihiro Shimoda
2016-01-25 9:08 ` Dirk Behme
2016-01-25 16:25 ` Dirk Behme
2016-01-25 19:24 ` Wolfram Sang
2016-01-25 20:47 ` Geert Uytterhoeven
2016-01-26 6:12 ` Dirk Behme
2016-01-26 8:34 ` Wolfram Sang
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