x86: Change how selection of ROMs works
Most x86 boards build a u-boot.rom which is programmed into SPI flash. But
this is not unique to x86. For example some rockchip boards can also boot
from SPI flash.
Also, at least on x86, binary blobs are sadly quite common. It is not
possible to build a functional image without them, and U-Boot needs to
know this at build time.
Introduce a new CONFIG_HAS_ROM option which selects whether u-boot.rom is
built and a new CONFIG_ROM_NEEDS_BLOBS option to indicate whether binary
blobs are also needed. If they are not needed, it is safe to build the ROM
always. Otherwise we still require the BUILD_ROM environment variable.
For now this affects only x86, but future patches will enable this for
rockchip too.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/Kconfig b/arch/Kconfig
index 9be02d1..7f3cbe2 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -160,6 +160,7 @@
select TIMER
select USE_PRIVATE_LIBGCC
select X86_TSC_TIMER
+ imply HAS_ROM if X86_RESET_VECTOR
imply BLK
imply CMD_DM
imply CMD_FPGA_LOADMK