openwrt/target/linux/generic/pending-4.19/465-m25p80-mx-disable-software-protection.patch
Robert Marko 3ef988caf3 generic: 4.19: Add 4B_OPCODES flag to w25q256
This patch backports the upstream patch that adds the 4B_OPCODES flag to w25q256 under 4.19 kernel.
This is needed for ipq40xx and ramips.

Signed-off-by: Robert Marko <robimarko@gmail.com>
2020-03-12 12:59:44 +01:00

19 lines
619 B
Diff

From: Felix Fietkau <nbd@nbd.name>
Subject: Disable software protection bits for Macronix flashes.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/mtd/spi-nor/spi-nor.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -2737,6 +2737,7 @@ static int spi_nor_init(struct spi_nor *
*/
if (JEDEC_MFR(nor->info) == SNOR_MFR_ATMEL ||
JEDEC_MFR(nor->info) == SNOR_MFR_INTEL ||
+ JEDEC_MFR(nor->info) == SNOR_MFR_MACRONIX ||
JEDEC_MFR(nor->info) == SNOR_MFR_SST ||
nor->info->flags & SPI_NOR_HAS_LOCK) {
write_enable(nor);