mtd: get the ECC info from the parameter page for ONFI nand
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>
Reviewed-and-tested-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 9a48758..42d44bb 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2913,6 +2913,11 @@
if (le16_to_cpu(p->features) & 1)
*busw = NAND_BUSWIDTH_16;
+ if (p->ecc_bits != 0xff) {
+ chip->ecc_strength_ds = p->ecc_bits;
+ chip->ecc_step_ds = 512;
+ }
+
pr_info("ONFI flash detected\n");
return 1;
}