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

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;