target/linux/generic/backport-4.9/064-v4.12-mtd-spi-nor-enable-stateless-4b-op-codes-for-mx25u25.patch

   1 From b0fcb4b413028376894feaaaf62bcb09ab1b52f2 Mon Sep 17 00:00:00 2001
   2 From: Mathias Kresin <dev@kresin.me>
   3 Date: Thu, 13 Apr 2017 09:23:54 +0200
   4 Subject: [PATCH] mtd: spi-nor: enable stateless 4b op codes for mx25u25635f
   5
   6 All required stateless 4-byte op codes are supported by this flash
   7 chip. The stateless 4-byte support can't be autodetected due to a
   8 missing 4-byte Address Instruction Table in SFDP.
   9
  10 Fixes hangs on reboot for SoCs expecting the flash chip in 3byte mode.
  11
  12 Signed-off-by: Mathias Kresin <dev@kresin.me>
  13 Acked-by: Marek Vasut <marek.vasut@gmail.com>
  14 Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
  15 ---
  16  drivers/mtd/spi-nor/spi-nor.c | 2 +-
  17  1 file changed, 1 insertion(+), 1 deletion(-)
  18
  19 --- a/drivers/mtd/spi-nor/spi-nor.c
  20 +++ b/drivers/mtd/spi-nor/spi-nor.c
  21 @@ -1023,7 +1023,7 @@ static const struct flash_info spi_nor_i
  22         { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
  23         { "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
  24         { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
  25 -       { "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512, SECT_4K) },
  26 +       { "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_4B_OPCODES) },
  27         { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
  28         { "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, SPI_NOR_QUAD_READ) },
  29         { "mx66l1g55g",  INFO(0xc2261b, 0, 64 * 1024, 2048, SPI_NOR_QUAD_READ) },