You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.4 KiB
38 lines
1.4 KiB
7 years ago
|
From: Matthias Schiffer <mschiffer@universe-factory.net>
|
||
|
|
Date: Tue, 9 Jan 2018 20:41:48 +0100
|
||
|
|
Subject: [PATCH] Revert "mtd: spi-nor: fix Spansion regressions (aliased with
|
||
|
|
Winbond)"
|
||
|
|
|
||
|
|
This reverts commit 67b9bcd36906e12a15ffec19463afbbd6a41660e.
|
||
|
|
|
||
|
|
The underlying issue breaking Spansion flash has been fixed with "mtd: spi-nor:
|
||
|
|
wait until lock/unlock operations are ready" and "mtd: spi-nor: wait for SR_WIP
|
||
|
|
to clear on initial unlock", so we can support unlocking for Winbond flash
|
||
|
|
again.
|
||
|
|
|
||
|
|
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
|
||
|
|
---
|
||
|
|
drivers/mtd/spi-nor/spi-nor.c | 4 +++-
|
||
|
|
1 file changed, 3 insertions(+), 1 deletion(-)
|
||
|
|
|
||
|
|
--- a/drivers/mtd/spi-nor/spi-nor.c
|
||
|
|
+++ b/drivers/mtd/spi-nor/spi-nor.c
|
||
|
|
@@ -1597,6 +1597,7 @@ int spi_nor_scan(struct spi_nor *nor, co
|
||
|
|
JEDEC_MFR(info) == SNOR_MFR_INTEL ||
|
||
|
|
JEDEC_MFR(info) == SNOR_MFR_MACRONIX ||
|
||
|
|
JEDEC_MFR(info) == SNOR_MFR_SST ||
|
||
|
|
+ JEDEC_MFR(info) == SNOR_MFR_WINBOND ||
|
||
|
|
info->flags & SPI_NOR_HAS_LOCK) {
|
||
|
|
write_enable(nor);
|
||
|
|
write_sr(nor, 0);
|
||
|
|
@@ -1615,7 +1616,8 @@ int spi_nor_scan(struct spi_nor *nor, co
|
||
|
|
|
||
|
|
/* NOR protection support for STmicro/Micron chips and similar */
|
||
|
|
if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||
|
||
|
|
- info->flags & SPI_NOR_HAS_LOCK) {
|
||
|
|
+ JEDEC_MFR(info) == SNOR_MFR_WINBOND ||
|
||
|
|
+ info->flags & SPI_NOR_HAS_LOCK) {
|
||
|
|
nor->flash_lock = stm_lock;
|
||
|
|
nor->flash_unlock = stm_unlock;
|
||
|
|
nor->flash_is_locked = stm_is_locked;
|