mtd: nand: davinci: set ECC algorithm explicitly for HW based ECC

If ECC strength is 4bits/512bytes the algorithm of the ECC engine is
BCH, otherwise (1bit/512bytes) Hamming is used.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 531c519..7b26e53 100644 (file)
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -771,11 +771,14 @@ static int nand_davinci_probe(struct platform_device *pdev)
                        info->chip.ecc.hwctl = nand_davinci_hwctl_4bit;
                        info->chip.ecc.bytes = 10;
                        info->chip.ecc.options = NAND_ECC_GENERIC_ERASED_CHECK;
+                       info->chip.ecc.algo = NAND_ECC_BCH;
                } else {
+                       /* 1bit ecc hamming */
                        info->chip.ecc.calculate = nand_davinci_calculate_1bit;
                        info->chip.ecc.correct = nand_davinci_correct_1bit;
                        info->chip.ecc.hwctl = nand_davinci_hwctl_1bit;
                        info->chip.ecc.bytes = 3;
+                       info->chip.ecc.algo = NAND_ECC_HAMMING;
                }
                info->chip.ecc.size = 512;
                info->chip.ecc.strength = pdata->ecc_bits;