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    Subject[PATCH 8/8] mtd: spi-nor: support lock/unlock for a few Winbond chips
    Date
    These are recent Winbond models that are known to have lock/unlock
    support via writing the Status Register, and that also support the TB
    (Top/Bottom) protection bit.

    Tested on w25q32dw.

    [Note on style: these entries are getting pretty long lines, so I picked
    a style that seems reasonable for splitting up the flags separate from
    the other mostly-similar fields.]

    Signed-off-by: Brian Norris <computersforpeace@gmail.com>
    ---
    drivers/mtd/spi-nor/spi-nor.c | 18 +++++++++++++++---
    1 file changed, 15 insertions(+), 3 deletions(-)

    diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
    index 5e84e3c543aa..cd3908e26712 100644
    --- a/drivers/mtd/spi-nor/spi-nor.c
    +++ b/drivers/mtd/spi-nor/spi-nor.c
    @@ -942,11 +942,23 @@ static const struct flash_info spi_nor_ids[] = {
    { "w25x16", INFO(0xef3015, 0, 64 * 1024, 32, SECT_4K) },
    { "w25x32", INFO(0xef3016, 0, 64 * 1024, 64, SECT_4K) },
    { "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) },
    - { "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
    + {
    + "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64,
    + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
    + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
    + },
    { "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },
    { "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
    - { "w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
    - { "w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
    + {
    + "w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128,
    + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
    + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
    + },
    + {
    + "w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256,
    + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
    + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
    + },
    { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) },
    { "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) },
    { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
    --
    1.7.9.5
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