From 4fee6c2f295f932b8febdc7ce8731ba045695fa5 Mon Sep 17 00:00:00 2001 From: Christian Hitz Date: Wed, 12 Oct 2011 09:32:06 +0200 Subject: nand: make 1-bit software ECC configurable The software ECC algorithm is not necessary when hardware ECC is available and can be left out for a smaller image size. Enable with CONFIG_MTD_ECC_SOFT. Signed-off-by: Christian Hitz Cc: Scott Wood Signed-off-by: Scott Wood --- drivers/mtd/nand/nand_base.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/mtd/nand/nand_base.c') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 8ab83036f5..12b960fdb9 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3028,6 +3028,10 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.mode = NAND_ECC_SOFT; case NAND_ECC_SOFT: + if (!mtd_nand_has_ecc_soft()) { + printk(KERN_WARNING "CONFIG_MTD_ECC_SOFT not enabled\n"); + return -EINVAL; + } chip->ecc.calculate = nand_calculate_ecc; chip->ecc.correct = nand_correct_data; chip->ecc.read_page = nand_read_page_swecc; -- cgit v1.2.3