3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Herve Codina <herve.cod...@celad.com>
commit 90445ff6241e2a13445310803e2efa606c61f276 upstream.
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.cod...@celad.com>
Acked-by: Josh Wu <josh...@atmel.com>
Signed-off-by: Brian Norris <computersforpe...@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/mtd/nand/atmel_nand.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -1220,6 +1220,7 @@ static int atmel_pmecc_nand_init_params(
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;
--
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