Re: [PATCH] mmc sdhci i.MX5: make mmc cards work

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On 21 February 2012 02:41, Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote:
> On Mon, Feb 20, 2012 at 02:31:36PM +0800, Shawn Guo wrote:
>> I do not have a mmc card to test the patch, but I tested it and
>> confirmed it does not break anything about SD support.
>>
>> On Fri, Feb 17, 2012 at 11:51:49AM +0100, Sascha Hauer wrote:
>> > On i.MX53 we have to write a special SDHCI_CMD_ABORTCMD to the
>>
>> Is this i.MX53 only?
>
> Don't know. I don't think I have ever explicitely tested MMC cards on
> !i.MX53 boards.
>
>>
>> > SDHCI_TRANSFER_MODE register during a MMC_STOP_TRANSMISSION
>> > command. This works for SD cards. However, with MMC cards
>> > the MMC_SET_BLOCK_COUNT command is used instead, but this needs
>> > the same handling. Fix MMC cards by testing for the
>> > MMC_SET_BLOCK_COUNT command aswell. Tested on a custom i.MX53
>> > board with a Transcend MMC+ card and eMMC.
>> >
>> I did not find the similar handling in FSL internal tree, but I think
>> that FSL QA team should have tested it with MMC/eMMC card.
>
> Which kernel did they test this on? The mmc core uses the
> MMC_SET_BLOCK_COUNT command since v3.0-rc1. Earlier kernels
> probably worked.
>
FSL internal tree was recently upgraded to v3.0, and I just knew from
QA team that they tested the new tree with a Sandisk eMMC card and it
worked, but have not found a Transcend card to test.  Since you are
fixing a problem you are actually seeing and the patch does not break
anything with my testing, so

Acked-by: Shawn Guo <shawn.guo@xxxxxxxxxx>

Regards,
Shawn
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