Re: Sandisk MMC I/O errors

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2014-08-07 9:54 GMT+02:00 Jean-Michel Hautbois
<jean-michel.hautbois@xxxxxxxxxxx>:
>>> OK, I juste tested to get back on part of the commit
>>> 79f7ae7c45a6ccf04e2908337461dee615f6afb0 :
>>>
>>> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
>>> index 1ab5f3a..e22d851 100644
>>> --- a/drivers/mmc/core/mmc.c
>>> +++ b/drivers/mmc/core/mmc.c
>>> @@ -1264,7 +1264,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
>>>                                         goto err;
>>>                         }
>>>                         mmc_card_set_ddr_mode(card);
>>> -                       mmc_set_timing(card->host, MMC_TIMING_UHS_DDR50);
>>> +                       mmc_set_timing(card->host, MMC_TIMING_MMC_DDR52);
>>>                         mmc_set_bus_width(card->host, bus_width);
>>>                 }
>>>         }
>>>
>>>
>>> I just did the inverse, that means using MMC_TIMING_UHS_DDR50 and not
>>> MMC_TIMING_MMC_DDR52 and I don't have any errors now.
>>
>> Is your card eMMC or SD(T-flash)? Which card do you use?
>> Did you check dt-file?
>
> The card is Sandisk SDIN5D1-2G which is a iNAND.
> What should I check in DT ?

I have written too quickly, still have same problem from time to time...
I don't have a clue, so if anybody has, I am interested...

JM
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