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From: Jaehoon Chung <jh80.chung@samsung.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Issue in DWMMC in mainline
Date: Wed, 22 May 2013 12:32:55 +0900	[thread overview]
Message-ID: <519C3C67.3000508@samsung.com> (raw)
In-Reply-To: <CAD6G_RR-pJaC-Mr=4XKQHqYdQf088vTGSijNCurnjUNvDNqgvA@mail.gmail.com>

Hi

On 05/21/2013 10:51 PM, Jagan Teki wrote:
> Hi,
> 
> On Tue, May 21, 2013 at 6:24 PM, Rajeshwari Birje
> <rajeshwari.birje@gmail.com> wrote:
>> Hi All,
>>
>> I use the DWMMC driver in u-boot mainline on exynos board and face the
>> following issue.
>>
>> I do a mmc rescan 3 times, then fourth time I get a DATA ERROR, which
>> is due to FIFO underun/overun, after which I don't even get Command
>> done interrupt.
>> Later on the mmcinfo value also is displayed wrong.
>>
>> Please do let me know if anybody have a solution for same.
> 
> You may know it already, can you try by enable CONFIG_MMC_TRACE on board config.
> so-that at-least we may come to know on which CMD this over/underrun occur.
If CONFIG_MMC_TRACE is enabled, the we can know which command is occurred.
But it's added the some delay, because the log message is displayed.
Then it didn't work the expected job.

Best Regards,
Jaehoon Chung 
> 
> Thanks,
> Jagan.
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
> 

      reply	other threads:[~2013-05-22  3:32 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-21 12:54 [U-Boot] Issue in DWMMC in mainline Rajeshwari Birje
2013-05-21 13:51 ` Jagan Teki
2013-05-22  3:32   ` Jaehoon Chung [this message]

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