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  • linux-arm
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  • drivers
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  • Tomer Maimon's avatar
    spi: npcm-fiu: add NPCM FIU controller driver · ace55c41
    Tomer Maimon authored Aug 28, 2019 and Mark Brown's avatar Mark Brown committed Aug 30, 2019
    
    
    Add Nuvoton NPCM BMC Flash Interface Unit(FIU) SPI master
    controller driver using SPI-MEM interface.
    
    The FIU supports single, dual or quad communication interface.
    
    the FIU controller can operate in following modes:
    - User Mode Access(UMA): provides flash access by using an
      indirect address/data mechanism.
    - direct rd/wr mode: maps the flash memory into the core
      address space.
    - SPI-X mode: used for an expansion bus to an ASIC or CPLD.
    
    Signed-off-by: default avatarTomer Maimon <tmaimon77@gmail.com>
    Link: https://lore.kernel.org/r/20190828142513.228556-3-tmaimon77@gmail.com
    
    
    Signed-off-by: default avatarMark Brown <broonie@kernel.org>
    ace55c41