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

Message ID c0c9e990852a274fd705ed15eee55b2b3c94ebe2.1456800208.git.mschiffer@universe-factory.net
State Accepted
Headers show

Commit Message

Matthias Schiffer March 1, 2016, 3:06 a.m. UTC 
Signed-off-by: Felix Fietkau <nbd@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
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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);