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[03/11] mtd: get the ECC info from the parameter page for ONFI nand

Message ID 1363605534-24776-4-git-send-email-b32955@freescale.com
State New, archived
Headers show

Commit Message

Huang Shijie March 18, 2013, 11:18 a.m. UTC 
From the onfi spec, we can just get the ECC info from the @ecc_bits field of
the parameter page.

Signed-off-by: Huang Shijie <b32955@freescale.com>
---
 drivers/mtd/nand/nand_base.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
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Patch

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 49de9da..461fbc8 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2878,6 +2878,11 @@  static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	if (le16_to_cpu(p->features) & 1)
 		*busw = NAND_BUSWIDTH_16;
 
+	if (p->ecc_bits != 0xff) {
+		chip->ecc_strength = p->ecc_bits;
+		chip->ecc_size = 512;
+	}
+
 	pr_info("ONFI flash detected\n");
 	return 1;
 }