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mtd: atmel_nand: Disable subpage NAND write when using Atmel PMECC

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Crash detected on sam5d35 and its pmecc nand ecc controller.

The problem was a call to chip->ecc.hwctl from nand_write_subpage_hwecc
(nand_base.c) when we write a sub page.
chip->ecc.hwctl function is not set when we are using PMECC controller.
As a workaround, set NAND_NO_SUBPAGE_WRITE for PMECC controller in
order to disable sub page access in nand_write_page.

Signed-off-by: Herve Codina <Herve.CODINA@celad.com>
Acked-by: Josh Wu <josh.wu@atmel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Herve Codina 2014-03-03 12:15:29 +01:00 • committed by Brian Norris
parent b8e2931d16
commit 90445ff624
1 changed files with 1 additions and 0 deletions

1
drivers/mtd/nand/atmel_nand.c
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@ -1220,6 +1220,7 @@ static int atmel_pmecc_nand_init_params(struct platform_device *pdev,
goto err;
}
nand_chip->options |= NAND_NO_SUBPAGE_WRITE;
nand_chip->ecc.read_page = atmel_nand_pmecc_read_page;
nand_chip->ecc.write_page = atmel_nand_pmecc_write_page;