linux-kernel - RE: [PATCH] clk: exynos5250: Fix divider values for sclk

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Message-id: <2c9001ce3429$e5989a50$b0c9cef0$%kim@samsung.com>
Date:	Mon, 08 Apr 2013 16:22:58 +0900
From:	Kukjin Kim <kgene.kim@...sung.com>
To:	'Mike Turquette' <mturquette@...aro.org>,
	'Tushar Behera' <tushar.behera@...aro.org>,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Cc:	patches@...aro.org, 'Thomas Abraham' <thomas.abraham@...aro.org>
Subject: RE: [PATCH] clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3}

Mike Turquette wrote:
> 
> Quoting Tushar Behera (2013-04-02 01:20:40)
> > In legacy setup, sclk_mmc{0,1,2,3} used PRE_RATIO bit-field (8-bit wide)
> > instead of RATIO bit-field (4-bit wide) for dividing clock rate.
> >
> > With current common clock setup, we are using RATIO bit-field which
> > is creating FIFO read errors while accessing eMMC. Changing over to
> > use PRE_RATIO bit-field fixes this issue.
> >
> > dwmmc_exynos 12200000.dwmmc0: data FIFO error (status=00008020)
> > mmcblk0: error -5 transferring data, sector 1, nr 7, cmd response 0x900,
> card status 0x0
> > end_request: I/O error, dev mmcblk0, sector 1
> >
> > Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
> > CC: Thomas Abraham <thomas.abraham@...aro.org>
> 
> I guess this will be applied through the samsung tree, so:
> 
> Acked-by: Mike Turquette <mturquette@...aro.org>
> 
Thanks, applied.

- Kukjin

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