mirror of https://github.com/hak5/openwrt-owl.git
36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From: Felix Fietkau <nbd@openwrt.org>
|
|
Date: Thu, 26 Nov 2015 17:03:46 +0100
|
|
Subject: [PATCH] Revert "mtd: spi-nor: disable protection for Winbond flash at
|
|
startup"
|
|
|
|
This reverts commit c6fc2171b249e73745c497b578b417a2946f1b2f.
|
|
|
|
This commit is breaking read access on at least s25fl064k, but also
|
|
possibly other Spansion flash chips.
|
|
|
|
Any mtd read seems to succeed, but simply returns a zero-filled buffer.
|
|
|
|
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
|
|
---
|
|
|
|
--- a/drivers/mtd/spi-nor/spi-nor.c
|
|
+++ b/drivers/mtd/spi-nor/spi-nor.c
|
|
@@ -1194,14 +1194,13 @@ int spi_nor_scan(struct spi_nor *nor, co
|
|
mutex_init(&nor->lock);
|
|
|
|
/*
|
|
- * Atmel, SST, Intel/Numonyx, and others serial NOR tend to power up
|
|
- * with the software protection bits set
|
|
+ * Atmel, SST and Intel/Numonyx serial nor tend to power
|
|
+ * up with the software protection bits set
|
|
*/
|
|
|
|
if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
|
|
JEDEC_MFR(info) == SNOR_MFR_INTEL ||
|
|
- JEDEC_MFR(info) == SNOR_MFR_SST ||
|
|
- JEDEC_MFR(info) == SNOR_MFR_WINBOND) {
|
|
+ JEDEC_MFR(info) == SNOR_MFR_SST) {
|
|
write_enable(nor);
|
|
write_sr(nor, 0);
|
|
}
|