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mtd: rawnand: micron: add fixup for ONFI revision 

Some Micron NAND chips (MT29F1G08ABAFAWP-ITE:F) report 00 00 for the
revision number field of the ONFI parameter page. Rather than rejecting
these outright assume ONFI version 1.0 if the revision number is 00 00.

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>
This commit is contained in:
Chris Packham 2018-06-25 10:44:46 +12:00 committed by Miquel Raynal
parent 872b71ff08
commit 243f37cb1f
1 changed files with 13 additions and 0 deletions
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13
drivers/mtd/nand/raw/nand_micron.c
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@ -290,6 +290,19 @@ static int micron_nand_init(struct nand_chip *chip)
return 0;
}
static void micron_fixup_onfi_param_page(struct nand_chip *chip,
struct nand_onfi_params *p)
{
/*
* MT29F1G08ABAFAWP-ITE:F and possibly others report 00 00 for the
* revision number field of the ONFI parameter page. Assume ONFI
* version 1.0 if the revision number is 00 00.
*/
if (le16_to_cpu(p->revision) == 0)
p->revision = cpu_to_le16(ONFI_VERSION_1_0);
}
const struct nand_manufacturer_ops micron_nand_manuf_ops = {
.init = micron_nand_init,
.fixup_onfi_param_page = micron_fixup_onfi_param_page,
};