[OpenWrt-Devel] [PATCH CC 18/32] kernel: disable software protection bits for macronix flash chips at init

Matthias Schiffer mschiffer at universe-factory.net
Mon Feb 29 22:06:52 EST 2016


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

Backport r47626
---
 .../462-m25p80-mx-disable-software-protection.patch            | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 target/linux/generic/patches-3.18/462-m25p80-mx-disable-software-protection.patch

diff --git a/target/linux/generic/patches-3.18/462-m25p80-mx-disable-software-protection.patch b/target/linux/generic/patches-3.18/462-m25p80-mx-disable-software-protection.patch
new file mode 100644
index 0000000..d7d7eec
--- /dev/null
+++ b/target/linux/generic/patches-3.18/462-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);
-- 
2.7.2
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