• Yaliang Wang's avatar
    mtd: spi-nor: gigadevice: gd25q256: replace gd25q256_default_init with gd25q256_post_bfpt · 4dc49062
    Yaliang Wang authored
    When utilizing PARSE_SFDP to initialize the flash parameter, the
    deprecated initializing method spi_nor_init_params_deprecated() and the
    function spi_nor_manufacturer_init_params() within it will never be
    executed, which results in the default_init hook function will also never
    be executed.
    
    This is okay for 'D' generation of GD25Q256, because 'D' generation is
    implementing the JESD216B standards, it has QER field defined in BFPT,
    parsing the SFDP can properly set the quad_enable function. The 'E'
    generation also implements the JESD216B standards, and it has the same
    status register definitions as 'D' generation, parsing the SFDP to set
    the quad_enable function should also work for 'E' generation.
    
    However, the same thing can't apply to 'C' generation. 'C' generation
    'GD25Q256C' implements the JESD216 standards, and it doesn't have the
    QER field defined in BFPT, since it does have QE bit in status register
    1, the quad_enable hook needs to be tweaked to properly set the
    quad_enable function, this can be done in post_bfpt fixup hook.
    
    Fixes: 047275f7 ("mtd: spi-nor: gigadevice: gd25q256: Init flash based on SFDP")
    Reported-by: default avatarkernel test robot <lkp@intel.com>
    Signed-off-by: default avatarYaliang Wang <Yaliang.Wang@windriver.com>
    [tudor.ambarus@microchip.com: Update comment in gd25q256_post_bfpt]
    Signed-off-by: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
    Cc: stable@vger.kernel.org
    Link: https://lore.kernel.org/r/20221016171901.1483542-2-yaliang.wang@windriver.com
    4dc49062
gigadevice.c 2.56 KB