target/linux/generic/pending-6.1/498-mtd-spi-nor-locking-support-for-MX25L6405D.patch

   1 From 8bf2ce6ea4ee840b70f55a27f80e1cd308051b13 Mon Sep 17 00:00:00 2001
   2 From: Nick Hainke <vincent@systemli.org>
   3 Date: Mon, 27 Dec 2021 00:38:13 +0100
   4 Subject: [PATCH 1/2] mtd: spi-nor: locking support for MX25L6405D
   5
   6 Macronix MX25L6405D supports locking with four block-protection bits.
   7 Currently, the driver only sets three bits.  If the bootloader does not
   8 sustain the flash chip in an unlocked state, the flash might be
   9 non-writeable. Add the corresponding flag to enable locking support with
  10 four bits in the status register.
  11
  12 Tested on Nanostation M2 XM.
  13
  14 Similar to commit 7ea40b54e83b ("mtd: spi-nor: enable locking support for
  15 MX25L12805D")
  16
  17 Signed-off-by: David Bauer <mail@david-bauer.net>
  18 Signed-off-by: Nick Hainke <vincent@systemli.org>
  19 ---
  20  drivers/mtd/spi-nor/macronix.c | 3 ++-
  21  1 file changed, 2 insertions(+), 1 deletion(-)
  22
  23 --- a/drivers/mtd/spi-nor/macronix.c
  24 +++ b/drivers/mtd/spi-nor/macronix.c
  25 @@ -48,6 +48,7 @@ static const struct flash_info macronix_
  26         { "mx25l3255e",  INFO(0xc29e16, 0, 64 * 1024,  64)
  27                 NO_SFDP_FLAGS(SECT_4K) },
  28         { "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128)
  29 +               FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_4BIT_BP)
  30                 NO_SFDP_FLAGS(SECT_4K) },
  31         { "mx25u2033e",  INFO(0xc22532, 0, 64 * 1024,   4)
  32                 NO_SFDP_FLAGS(SECT_4K) },