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mtd: nand: sunxi: avoid retrieving data before ECC pass

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The in-band data are copied twice: before ECC correction and after the
ECC engine has fixed all the fixable bitflips.
Drop the useless memcpy_fromio operation by passing a NULL pointer when
calling sunxi_nfc_read_buf().

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Boris BREZILLON 2015-10-20 22:16:01 +02:00 committed by Brian Norris
parent 74eb9ff54e
commit 28ec8a864f
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/nand/sunxi_nand.c
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@ -586,7 +586,7 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd,
if (*cur_off != data_off)
nand->cmdfunc(mtd, NAND_CMD_RNDOUT, data_off, -1);
sunxi_nfc_read_buf(mtd, data, ecc->size);
sunxi_nfc_read_buf(mtd, NULL, ecc->size);
if (data_off + ecc->size != oob_off)
nand->cmdfunc(mtd, NAND_CMD_RNDOUT, oob_off, -1);