[U-Boot] [PATCH] S5P: mmc: Resolved interrupt error during mmc_init

Raffaele Recalcati lamiaposta71 at gmail.com
Sun Apr 3 06:39:58 CEST 2011


Hi Minkyu,

On Thu, Mar 24, 2011 at 3:46 AM, Minkyu Kang <promsoft at gmail.com> wrote:
> Dear Chander Kashyap,
>
> On 22 March 2011 20:40, Chander Kashyap <chander.kashyap at linaro.org> wrote:
>> Blocksize was hardcoded to 512 bytes. But the blocksize varies
>> depeding on various mmc subsystem commands (between 8 and 512).
>> This hardcoding was resulting in interrupt error during data
>> transfer.
>>
>> It is now calculated based upon the request sent by mmc subsystem.
>>
>> Signed-off-by: Chander Kashyap <chander.kashyap at linaro.org>
>> ---
>>  drivers/mmc/s5p_mmc.c |    2 +-
>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/mmc/s5p_mmc.c b/drivers/mmc/s5p_mmc.c
>> index 195b5be..0323800 100644
>> --- a/drivers/mmc/s5p_mmc.c
>> +++ b/drivers/mmc/s5p_mmc.c
>> @@ -51,7 +51,7 @@ static void mmc_prepare_data(struct mmc_host *host, struct mmc_data *data)
>>        writeb(ctrl, &host->reg->hostctl);
>>
>>        /* We do not handle DMA boundaries, so set it to max (512 KiB) */
>> -       writew((7 << 12) | (512 << 0), &host->reg->blksize);
>> +       writew((7 << 12) | (data->blocksize & 0xFFF), &host->reg->blksize);
>>        writew(data->blocks, &host->reg->blkcnt);
>>  }
>>
>> --
>> 1.7.1
>>
>
> applied to u-boot-samsung.

I have sent some patches about mmc and reviewed one, can you please
tell me what to do mainline them?

11 mar :
[PATCH 1/3][v3] mmc: checking status after commands with R1b response
--> it has one Tested-by

[RFC 2/3][v3] mmc: SEND_OP_COND considers card capabilities (voltage)
--> it has one Tested-by
[PATCH 3/3][v3] mmc: trace added --> useful for getting information

23 mar :
[U-Boot] [PATCH] MMC may wrongly regconize 2GB eMMC as high capacity
--> I have reviewed and proposed a different, I think better and simpler, way.
There is a curious dependency between capacity and high_capacity variables.

Regards,
Raffaele


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