[PATCH] mtd: atmel_nand: add SOFT_BCH support

Raphaël Poggi raphio98 at gmail.com
Wed Jul 16 23:53:41 PDT 2014


Hi,

Thanks for applied, yes I changed the 20us to 40us for handle 8k page
NAND. I will send patchs about that.

2014-07-17 7:30 GMT+02:00 Sascha Hauer <s.hauer at pengutronix.de>:
> On Tue, Jul 15, 2014 at 11:16:40AM +0200, Raphael Poggi wrote:
>> To use soft ecc with nand with 8k page, we need the BCH support.
>> This commit adds the possibilty for atmel_nand to enable SOFT_BCH.
>>
>> Signed-off-by: Raphaël Poggi <poggi.raph at gmail.com>
>> ---
>>  drivers/mtd/nand/atmel_nand.c |    5 +++++
>>  1 file changed, 5 insertions(+)
>>
>> diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
>> index e9b2af7..d542a83 100644
>> --- a/drivers/mtd/nand/atmel_nand.c
>> +++ b/drivers/mtd/nand/atmel_nand.c
>> @@ -1164,6 +1164,11 @@ static int __init atmel_nand_probe(struct device_d *dev)
>>               nand_chip->ecc.mode = NAND_ECC_HW;
>>       }
>>
>> +     if (IS_ENABLED(CONFIG_NAND_ECC_BCH) &&
>> +             pdata->ecc_mode == NAND_ECC_SOFT_BCH) {
>> +             nand_chip->ecc.mode = NAND_ECC_SOFT_BCH;
>> +     }
>> +
>>       nand_chip->chip_delay = 40;             /* 40us command delay time */
>
> The mainline code has 20us here. Do you need that change?
>
> Anyway, applied this patch.
>
> Sascha
>
>
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