From 597fe4098dabdd05c44ec1d68e990a61798cad38 Mon Sep 17 00:00:00 2001 From: Dinesh Maniyam Date: Thu, 27 Feb 2025 00:18:28 +0800 Subject: drivers: mtd: nand: base: Add support for Hardware ECC for check bad block Leverage linux code to support hardware ECC interface to verify nand bad block. Signed-off-by: Dinesh Maniyam --- include/linux/mtd/rawnand.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 3bb0a3679f9..3e80b134063 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -131,6 +131,17 @@ void nand_wait_ready(struct mtd_info *mtd); #define NAND_DATA_IFACE_CHECK_ONLY -1 +/* + * There are different places where the manufacturer stores the factory bad + * block markers. + * + * Position within the block: Each of these pages needs to be checked for a + * bad block marking pattern. + */ +#define NAND_BBM_FIRSTPAGE BIT(24) +#define NAND_BBM_SECONDPAGE BIT(25) +#define NAND_BBM_LASTPAGE BIT(26) + /* * Constants for ECC_MODES */ -- cgit v1.2.3