From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Fri, 26 Feb 2016 04:24:06 +0100
Subject: kernel: disable software protection bits for macronix flash chips at init

Backport of r47626

diff --git a/target/linux/generic/patches-3.18/465-m25p80-mx-disable-software-protection.patch b/target/linux/generic/patches-3.18/465-m25p80-mx-disable-software-protection.patch
new file mode 100644
index 0000000..d7d7eec
--- /dev/null
+++ b/target/linux/generic/patches-3.18/465-m25p80-mx-disable-software-protection.patch
@@ -0,0 +1,10 @@
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -962,6 +962,7 @@ int spi_nor_scan(struct spi_nor *nor, co
+ 
+ 	if (JEDEC_MFR(info->jedec_id) == CFI_MFR_ATMEL ||
+ 	    JEDEC_MFR(info->jedec_id) == CFI_MFR_INTEL ||
++	    JEDEC_MFR(info->jedec_id) == CFI_MFR_MACRONIX ||
+ 	    JEDEC_MFR(info->jedec_id) == CFI_MFR_SST) {
+ 		write_enable(nor);
+ 		write_sr(nor, 0);