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

Disable subpage write when using PMECC to prevent buggy partial page write.

This fix has been taken from linux sources (see commit
90445ff6241e2a13445310803e2efa606c61f276)

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index ccc4dc014c38e54acbcb5fad799ac2989ff66080..9114a86da2bb0ee379739693e19308937516b44e 100644 (file)
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -882,6 +882,7 @@ static int atmel_pmecc_nand_init_params(struct nand_chip *nand,
                return -ENOMEM;
        }
 
+       nand->options |= NAND_NO_SUBPAGE_WRITE;
        nand->ecc.read_page = atmel_nand_pmecc_read_page;
        nand->ecc.write_page = atmel_nand_pmecc_write_page;
        nand->ecc.strength = cap;