• Timur Tabi's avatar
    powerpc/85xx: p1022ds: disable the NOR flash node if video is enabled · 4951896a
    Timur Tabi authored
    The Freescale P1022 has a unique pin muxing "feature" where the DIU video
    controller's video signals are muxed with 24 of the local bus address signals.
    When the DIU is enabled, the bulk of the local bus is disabled, preventing
    access to memory-mapped devices like NOR flash and the pixis FPGA.
    
    Therefore, if the DIU is going to be enabled, then memory-mapped devices on
    the localbus, like NOR flash, need to be disabled.
    
    This also means that the localbus is not a 'simple-bus' any more, so remove
    that string from the compatible node.
    Signed-off-by: default avatarTimur Tabi <timur@freescale.com>
    Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
    4951896a
p1022_ds.c 11 KB