kernel: disable software protection bits for macronix flash chips at init

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 47626

target/linux/generic/patches-4.1/465-m25p80-mx-disable-software-protection.patch

@@ -0,0 +1,14 @@
+Disable software protection bits for Macronix flashes.
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -1200,6 +1200,7 @@ int spi_nor_scan(struct spi_nor *nor, co
+ 
+ 	if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
+ 	    JEDEC_MFR(info) == SNOR_MFR_INTEL ||
++	    JEDEC_MFR(info) == SNOR_MFR_MACRONIX ||
+ 	    JEDEC_MFR(info) == SNOR_MFR_SST ||
+ 	    JEDEC_MFR(info) == SNOR_MFR_WINBOND) {
+ 		write_enable(nor);

target/linux/generic/patches-4.3/465-m25p80-mx-disable-software-protection.patch

@@ -0,0 +1,14 @@
+Disable software protection bits for Macronix flashes.
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -1200,6 +1200,7 @@ int spi_nor_scan(struct spi_nor *nor, co
+ 
+ 	if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
+ 	    JEDEC_MFR(info) == SNOR_MFR_INTEL ||
++	    JEDEC_MFR(info) == SNOR_MFR_MACRONIX ||
+ 	    JEDEC_MFR(info) == SNOR_MFR_SST ||
+ 	    JEDEC_MFR(info) == SNOR_MFR_WINBOND) {
+ 		write_enable(nor);