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Commit 00ce4e03 authored by Chris Packham's avatar Chris Packham Committed by Miquel Raynal
Browse files

mtd: rawnand: add manufacturer fixup for ONFI parameter page 



This is called after the ONFI parameter page checksum is verified
and allows us to override the contents of the parameter page.

Suggested-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: default avatarChris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent ed6d0285

drivers/mtd/nand/raw/nand_base.c

+4 −0
Original line number Diff line number Diff line
@@ -5168,6 +5168,10 @@ static int nand_flash_detect_onfi(struct nand_chip *chip) 
		}

	}



	if (chip->manufacturer.desc && chip->manufacturer.desc->ops &&

	    chip->manufacturer.desc->ops->fixup_onfi_param_page)

		chip->manufacturer.desc->ops->fixup_onfi_param_page(chip, p);



	/* Check version */

	val = le16_to_cpu(p->revision);

	if (val & (1 << 5))

include/linux/mtd/rawnand.h

+4 −0
Original line number Diff line number Diff line
@@ -785,11 +785,15 @@ nand_get_sdr_timings(const struct nand_data_interface *conf) 
 *	  implementation) if any.

 * @cleanup: the ->init() function may have allocated resources, ->cleanup()

 *	     is here to let vendor specific code release those resources.

 * @fixup_onfi_param_page: apply vendor specific fixups to the ONFI parameter

 *			   page. This is called after the checksum is verified.

 */

struct nand_manufacturer_ops {

	void (*detect)(struct nand_chip *chip);

	int (*init)(struct nand_chip *chip);

	void (*cleanup)(struct nand_chip *chip);

	void (*fixup_onfi_param_page)(struct nand_chip *chip,

				      struct nand_onfi_params *p);

};



/**