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x86: provide CONFIG_BUILD_ROM

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Up to now we depended on an exported variable to build u-boot.rom.
We should be able to specify it in the configuration file, too.

With this patch this becomes possible using the new Kconfig option
CONFIG_BUILD_ROM.

This option depends on CONFIG_X86 and is selected in
qemu-x86_defconfig and qemu-x86_64_defconfig.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Heinrich Schuchardt 2017-10-16 18:08:38 +00:00 committed by Bin Meng
parent 83262f99cd
commit 871aa41d4c
5 changed files with 19 additions and 4 deletions
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9
Kconfig
View File

@ -158,6 +158,15 @@ config PHYS_64BIT
This can be used not only for 64bit SoCs, but also for
large physical address extention on 32bit SoCs.
config BUILD_ROM
bool "Build U-Boot as BIOS replacement"
depends on X86
help
This option allows to build a ROM version of U-Boot.
The build process generally requires several binary blobs
which are not shipped in the U-Boot source tree.
Please, see doc/README.x86 for details.
endmenu # General setup
menu "Boot images"

2
Makefile
View File

@ -796,7 +796,7 @@ ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
ifneq ($(BUILD_ROM),)
ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
endif

1
configs/qemu-x86_64_defconfig
View File

@ -14,6 +14,7 @@ CONFIG_SMP=y
CONFIG_GENERATE_PIRQ_TABLE=y
CONFIG_GENERATE_MP_TABLE=y
CONFIG_GENERATE_ACPI_TABLE=y
CONFIG_BUILD_ROM=y
CONFIG_FIT=y
CONFIG_SPL_LOAD_FIT=y
CONFIG_BOOTSTAGE=y

1
configs/qemu-x86_defconfig
View File

@ -5,6 +5,7 @@ CONFIG_SMP=y
CONFIG_GENERATE_PIRQ_TABLE=y
CONFIG_GENERATE_MP_TABLE=y
CONFIG_GENERATE_ACPI_TABLE=y
CONFIG_BUILD_ROM=y
CONFIG_FIT=y
CONFIG_BOOTSTAGE=y
CONFIG_BOOTSTAGE_REPORT=y

10
doc/README.x86
View File

@ -80,11 +80,15 @@ Building a ROM version of U-Boot (hereafter referred to as u-boot.rom) is a
little bit tricky, as generally it requires several binary blobs which are not
shipped in the U-Boot source tree. Due to this reason, the u-boot.rom build is
not turned on by default in the U-Boot source tree. Firstly, you need turn it
on by enabling the ROM build:
on by enabling the ROM build either via an environment variable
$ export BUILD_ROM=y
$ export BUILD_ROM=y
This tells the Makefile to build u-boot.rom as a target.
or via configuration
CONFIG_BUILD_ROM=y
Both tell the Makefile to build u-boot.rom as a target.
---