Eric Lee / smarc-uboot

14 Apr, 2015

1 commit

  • 927c1fa26   Create API to map between CPU physical and bus addresses ... Browse Code ยป

    On some SoCs, DMA-capable peripherals see a different address space to
    the CPU's physical address space. Create an API to allow platform-agnostic
    drivers to convert between the two address spaces when programming DMA
    operations.

    This API will exist on all platforms, but will have a dummy implementation
    when this feature is not required. Other platforms will enable
    CONFIG_PHYS_TO_BUS and provide the required implementation.

    Signed-off-by: Stephen Warren

    Stephen Warren