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kernel: 5.10: add patches to fix macronix flash

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mtd: spi-nor: locking support for MX25L6405D

Macronix MX25L6405D supports locking with four block-protection bits.
Currently, the driver only sets three bits.  If the bootloader does not
sustain the flash chip in an unlocked state, the flash might be
non-writeable. Add the corresponding flag to enable locking support with
four bits in the status register.

mtd: spi-nor: disable 16-bit-sr for macronix

Macronix flash chips seem to consist of only one status register.
These chips will not work with the "16-bit Write Status (01h) Command".
Disable SNOR_F_HAS_16BIT_SR for all Macronix chips.

Refreshed:
- 0052-mtd-spi-nor-use-4-bit-locking-for-MX25L12805D.patch

Fixes: 15aa53d7ee ("ath79: switch to Kernel 5.10")

Signed-off-by: Nick Hainke <vincent@systemli.org>
This commit is contained in:
Nick Hainke
2021-12-27 02:17:43 +01:00
committed by Christian Lamparter
parent 6bfc8bb4a3
commit 83b5fbddf2
3 changed files with 65 additions and 1 deletions
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2
target/linux/ath79/patches-5.10/0052-mtd-spi-nor-use-4-bit-locking-for-MX25L12805D.patch
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@@ -21,7 +21,7 @@ Signed-off-by: David Bauer <mail@david-bauer.net>
--- a/drivers/mtd/spi-nor/macronix.c
+++ b/drivers/mtd/spi-nor/macronix.c
@@ -50,7 +50,8 @@ static const struct flash_info macronix_
@@ -51,7 +51,8 @@ static const struct flash_info macronix_
{ "mx25u4035", INFO(0xc22533, 0, 64 * 1024, 8, SECT_4K) },
{ "mx25u8035", INFO(0xc22534, 0, 64 * 1024, 16, SECT_4K) },
{ "mx25u6435f", INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },