[U-Boot] [PATCH v2] mmc: sdhci: Avoid commands errors by simple timeout adaptation.

[Przemyslaw Marczak <p.marczak@samsung.com>]

Dear Pantelis,
You don't reply for a long time. Could you look on it at this time?

On 10/15/2013 10:18 PM, Przemyslaw Marczak wrote:
> Hello Pantelis,
>
> Could you look at this patch, please?
>
> On 10/08/2013 06:12 PM, Przemyslaw Marczak wrote:
>> Old command timeout value was too small and it caused I/O errors which
>> led to uncompleted read/write/erase operations and filesystem errors.
>> Timeout adaptation fixes this issue.
>>
>> Changes in sdhci_send_command() function:
>> - change timeout variable to static
>> - increase default command timeout to 100 ms
>> - add definition of max command timeout value,
>>    which can be redefined in each board config file
>> - wait for card ready state for max defined time
>>    if it doesn't exceed defined maximum or return COMM_ERR
>>
>> Once successfully increased timeout value will be used in next function
>> call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS
>> on MMC storage.
>>
>> Changes v2:
>> - move global variable cmd_timeout into function sdhci_send_command()
>> - change condition "==" to ">=" when comparing time with timeout
>> - print information about timeout increasing and card busy timeout
>>
>> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
>> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
>
> Thank you.
>
>

Regards
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com