Commit 598dce70 authored Apr 17, 2019 by Frieder Schrempf Committed by Miquel Raynal Apr 18, 2019

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



According to the datasheet of some Cypress SLC NANDs, the bad
block markers can be in the first, second or last page of a block.
So 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 7a1894a9

drivers/mtd/nand/raw/nand_amd.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -45,7 +45,13 @@ static void amd_nand_decode_id(struct nand_chip *chip)
		static int amd_nand_init(struct nand_chip *chip)
		{
		if (nand_is_slc(chip))
		chip->options \|= NAND_BBM_FIRSTPAGE \| NAND_BBM_SECONDPAGE;
		/*
		* According to the datasheet of some Cypress SLC NANDs,
		* the bad block markers can be in the first, second or last
		* page of a block. So let's check all three locations.
		*/
		chip->options \|= NAND_BBM_FIRSTPAGE \| NAND_BBM_SECONDPAGE \|
		NAND_BBM_LASTPAGE;

		return 0;
		}

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