mtd: nand: sunxi: Add randomizer configuration before randomizer enable

In sunxi_nfc_hw_ecc_read_chunk(), the sunxi_nfc_randomizer_enable() is
called without the config of randomizer. A proper implementation can be
found in sunxi_nfc_hw_ecc_read_chunks_dma().

Add sunxi_nfc_randomizer_config() before the start of randomization.

Fixes: 4be4e03efc7f ("mtd: nand: sunxi: add randomizer support")
Cc: stable@vger.kernel.org # v4.6
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c
index fab371e..9179719 100644 (file)
--- a/drivers/mtd/nand/raw/sunxi_nand.c
+++ b/drivers/mtd/nand/raw/sunxi_nand.c
@@ -817,6 +817,7 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct nand_chip *nand,
        if (ret)
                return ret;
 
+       sunxi_nfc_randomizer_config(nand, page, false);
        sunxi_nfc_randomizer_enable(nand);
        writel(NFC_DATA_TRANS | NFC_DATA_SWAP_METHOD | NFC_ECC_OP,
               nfc->regs + NFC_REG_CMD);