x86: provide CONFIG_BUILD_ROM
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>
diff --git a/Kconfig b/Kconfig
index 73f820a..227fb17 100644
--- a/Kconfig
+++ b/Kconfig
@@ -158,6 +158,15 @@
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"