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authorSimon Glass <sjg@chromium.org>2015-08-04 12:33:52 -0600
committerSimon Glass <sjg@chromium.org>2015-08-05 08:44:06 -0600
commit476476e73b14696563524cbc2627a4c033ea64da (patch)
treeddd2da016f47be232d02b4fb3be7b4264e7b1043 /tools/netconsole
parent465a67cf529bd2f7a5ca871aff3fa63faa142516 (diff)
downloadblackbird-obmc-uboot-476476e73b14696563524cbc2627a4c033ea64da.tar.gz
blackbird-obmc-uboot-476476e73b14696563524cbc2627a4c033ea64da.zip
efi: Add support for loading U-Boot through an EFI stub
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 <sjg@chromium.org> Improvements to how the payload is built: Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
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