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Payloads: Add U-Boot as a coreboot-payload

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- Add Kconfig and Makefile options to use U-Boot as a payload.
- Add Kconfig option for extra cbfstool command line arguments.
- Add Kconfig & Makefile option to load the payload as a flat binary.
- Add u-boot directory to .gitignore.

This is currently working for X-86 only.

Graphics worked in U-Boot correctly by initializing the VBIOS and
setting up a console mode.

Tested in QEMU and on Minnowboard Max.  Got into U-Boot, have not
booted an OS yet.

Change-Id: Ia122a4ad7cd7d96107c1552b0376c8106ca8fb92
Signed-off-by: Martin Roth <martinroth@google.com>
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/12714
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Martin Roth
2015-12-11 12:24:33 -07:00
parent 654fd0703a
commit dbae4d03ef
7 changed files with 164 additions and 2 deletions
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5
payloads/external/Makefile.inc vendored
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@@ -77,3 +77,8 @@ grub2:
CONFIG_GRUB2_MASTER=$(CONFIG_GRUB2_MASTER)
payloads/external/GRUB2/grub2/build/default_payload.elf: grub2
payloads/external/U-Boot/u-boot/u-boot-dtb.bin u-boot: $(top)/$(DOTCONFIG)
$(MAKE) -C payloads/external/U-Boot -f Makefile.inc \
CONFIG_UBOOT_MASTER=$(CONFIG_UBOOT_MASTER) \
CONFIG_UBOOT_STABLE=$(CONFIG_UBOOT_STABLE)