From: Michael Walle mwalle@kernel.org
Commit 83e824a4a595 ("mtd: spi-nor: Correct flags for Winbond w25q128") removed the flags for non-SFDP devices. It was assumed that it wasn't in use anymore. This wasn't true. Add the no_sfdp_flags as well as the size again.
We add the additional flags for dual and quad read because they have been reported to work properly by Hartmut using both older and newer versions of this flash, the similar flashes with 64Mbit and 256Mbit already have these flags and because it will (luckily) trigger our legacy SFDP parsing, so newer versions with SFDP support will still get the parameters from the SFDP tables.
This was applied to mainline as commit e49b2731c396 ("mtd: spi-nor: winbond: fix w25q128 regression") however the code has changed a lot after v6.6 so the patch did not apply to v6.6 or v6.1 which still has the problem.
This patch fixes the issue in the way of the old API and has been tested on hardware. Please apply it for v6.1 and v6.6.
Reported-by: Hartmut Birr e9hack@gmail.com Closes: https://lore.kernel.org/r/CALxbwRo_-9CaJmt7r7ELgu+vOcgk=xZcGHobnKf=oT2=u4d4a... Fixes: 83e824a4a595 ("mtd: spi-nor: Correct flags for Winbond w25q128") Reviewed-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Michael Walle mwalle@kernel.org Acked-by: Tudor Ambarus tudor.ambarus@linaro.org Reviewed-by: Esben Haabendal esben@geanix.com Reviewed-by: Pratyush Yadav pratyush@kernel.org Signed-off-by: Pratyush Yadav pratyush@kernel.org Link: https://lore.kernel.org/r/20240621120929.2670185-1-mwalle@kernel.org [Backported to v6.6 - vastly different due to upstream changes] Signed-off-by: Linus Walleij linus.walleij@linaro.org --- This fix backported to stable v6.6 and v6.1 after reports from OpenWrt users: https://github.com/openwrt/openwrt/issues/16796 --- drivers/mtd/spi-nor/winbond.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index cd99c9a1c568..95dd28b9bf14 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -120,9 +120,10 @@ static const struct flash_info winbond_nor_parts[] = { NO_SFDP_FLAGS(SECT_4K) }, { "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16) NO_SFDP_FLAGS(SECT_4K) }, - { "w25q128", INFO(0xef4018, 0, 0, 0) - PARSE_SFDP - FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256) + FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) + NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | + SPI_NOR_QUAD_READ) }, { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512) NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) .fixups = &w25q256_fixups },
--- base-commit: ffc253263a1375a65fa6c9f62a893e9767fbebfa change-id: 20241027-v6-6-7ed05eaccb22
Best regards,
Thanks Linus for taking care of this!
On 10/28/24 11:44 AM, Linus Walleij wrote:
From: Michael Walle mwalle@kernel.org
nit: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html says we *must* note the upstream commit ID with a separate line above the commit text like this:
```commit <sha1> upstream.``` or alternatively: ```[ Upstream commit <sha1> ]```
With this addressed: Reviewed-by: Tudor Ambarus tudor.ambarus@linaro.org
Commit 83e824a4a595 ("mtd: spi-nor: Correct flags for Winbond w25q128") removed the flags for non-SFDP devices. It was assumed that it wasn't in use anymore. This wasn't true. Add the no_sfdp_flags as well as the size again.
We add the additional flags for dual and quad read because they have been reported to work properly by Hartmut using both older and newer versions of this flash, the similar flashes with 64Mbit and 256Mbit already have these flags and because it will (luckily) trigger our legacy SFDP parsing, so newer versions with SFDP support will still get the parameters from the SFDP tables.
This was applied to mainline as commit e49b2731c396 ("mtd: spi-nor: winbond: fix w25q128 regression")
invalid sha1, it must have been: d35df77707bf5ae1221b5ba1c8a88cf4fcdd4901
Cheers, ta
linux-stable-mirror@lists.linaro.org
-
Linus Walleij -
Tudor Ambarus