• David Brownell's avatar
    davinci: add SRAM allocator · 20e9969b
    David Brownell authored
    Provide a generic SRAM allocator using genalloc, and vaguely
    modeled after what AVR32 uses.  This builds on top of the
    static CPU mapping set up in the previous patch, and returns
    DMA mappings as requested (if possible).
    Compared to its OMAP cousin, there's no current support for
    (currently non-existent) DaVinci power management code running
    in SRAM; and this has ways to deallocate, instead of being
    The initial user of this should probably be the audio code,
    because EDMA from DDR is subject to various dropouts on at
    least DM355 and DM6446 chips.
    Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
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