Commit 7a1894a9 authored Apr 17, 2019 by Frieder Schrempf Committed by Miquel Raynal Apr 18, 2019

mtd: rawnand: ESMT: Also use the last page for bad block markers



It is known that some ESMT SLC NANDs have been shipped
with the factory bad block markers in the first or last page
of the block, instead of the first or second page. To be on
the safe side, let's check all three locations.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

parent f90da781

drivers/mtd/nand/raw/nand_esmt.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -36,7 +36,14 @@ static void esmt_nand_decode_id(struct nand_chip *chip)
		static int esmt_nand_init(struct nand_chip *chip)
		{
		if (nand_is_slc(chip))
		chip->options \|= NAND_BBM_FIRSTPAGE \| NAND_BBM_SECONDPAGE;
		/*
		* It is known that some ESMT SLC NANDs have been shipped
		* with the factory bad block markers in the first or last page
		* of the block, instead of the first or second page. To be on
		* the safe side, let's check all three locations.
		*/
		chip->options \|= NAND_BBM_FIRSTPAGE \| NAND_BBM_SECONDPAGE \|
		NAND_BBM_LASTPAGE;

		return 0;
		}

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