Eric Lee / smarc-uboot

05 Aug, 2015

2 commits

  • 476476e73   efi: Add support for loading U-Boot through an EFI stub ... Browse Code »

    It is useful to be able to load U-Boot onto a board even if is it already
    running EFI. This can allow access to the U-Boot command interface, flexible
    booting options and easier development.

    The easiest way to do this is to build U-Boot as a binary blob and have an
    EFI stub copy it into RAM. Add support for this feature, targeting 32-bit
    initially.

    Also add a way to detect when U-Boot has been loaded via a stub. This goes
    in common.h since it needs to be widely available so that we avoid redoing
    initialisation that should be skipped.

    Signed-off-by: Simon Glass
    Improvements to how the payload is built:
    Signed-off-by: Bin Meng
    Reviewed-by: Bin Meng
    Tested-by: Bin Meng

    Simon Glass
     
  • 867a6ac86   efi: Add start-up library code ... Browse Code »
    28

    When running as an EFI application, U-Boot must request memory from EFI,
    and provide access to the boot services U-Boot needs.

    Add library code to perform these tasks. This includes efi_main() which is
    the entry point from EFI. U-Boot is built as a shared library.

    Signed-off-by: Simon Glass
    Reviewed-by: Bin Meng

    Simon Glass