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authorChris Packham <chris.packham@alliedtelesis.co.nz>2018-06-25 10:44:44 +1200
committerMiquel Raynal <miquel.raynal@bootlin.com>2018-07-02 09:02:16 +0200
commit00ce4e039ad5bded462931606c3063ff691964b7 (patch)
treee6bc5845d919e130e59f9725a8a66936e4277fe6
parented6d0285f81cbf27d8294b47ac0bc8f28041b186 (diff)
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: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
-rw-r--r--drivers/mtd/nand/raw/nand_base.c4
-rw-r--r--include/linux/mtd/rawnand.h4
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 1c633f80c3e1..f362c09a71d7 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -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))
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 80aeeca03f36..dc4538b58b84 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -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);
};
/**