[PATCH 5.4 069/222] mtd: spi-nor: Fix selection of 4-byte addressing opcodes on Spansion

Greg Kroah-Hartman
2020-01-22T13:20:11Z

From: Vignesh Raghavendra <vigneshr@ti.com>

commit 440b6d50254bdbd84c2a665c7f53ec69dd741a4f upstream.

mtd->size is still unassigned when running spansion_post_sfdp_fixups()
hook, therefore use nor->params.size to determine the size of flash device.

This makes sure that 4-byte addressing opcodes are used on Spansion
flashes that are larger than 16MiB and don't have SFDP 4BAIT table
populated.

Fixes: 92094ebc385e ("mtd: spi-nor: Add spansion_post_sfdp_fixups()")
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/mtd/spi-nor/spi-nor.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -4544,9 +4544,7 @@ static void spi_nor_info_init_params(str

static void spansion_post_sfdp_fixups(struct spi_nor *nor)
{
- struct mtd_info *mtd = &nor->mtd;
-
- if (mtd->size <= SZ_16M)
+ if (nor->params.size <= SZ_16M)
return;

nor->flags |= SNOR_F_4B_OPCODES;