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x86: Allow building an SPL image for coreboot

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Coreboot runs in 32-bit mode and cannot run a 64-bit U-Boot. To get around
this we can build a combined image with 32-bit SPL and 64-bit U-Boot. Add
a build rule and binman definition for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2020-04-30 21:21:40 -06:00
committed by Bin Meng
parent 7ec0e7b635
commit c2018cdd71
3 changed files with 25 additions and 0 deletions
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6
Makefile
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@@ -926,6 +926,9 @@ ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
endif
ifeq ($(CONFIG_SYS_COREBOOT)$(CONFIG_SPL),yy)
ALL-$(CONFIG_BINMAN) += u-boot-x86-with-spl.bin
endif
# Build a combined spl + u-boot image for sunxi
ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
@@ -1626,6 +1629,9 @@ u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
endif
endif
u-boot-x86-with-spl.bin: spl/u-boot-spl.bin u-boot.bin FORCE
$(call if_changed,binman)
ifneq ($(CONFIG_TEGRA),)
ifneq ($(CONFIG_BINMAN),)
# Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin