src: Consolidate x86_64 support Kconfig
Introduce `USE_EXP_X86_64_SUPPORT` in `src/arch/x86/Kconfig` and guard
it with `HAVE_EXP_X86_64_SUPPORT`. Replace the per-CPU implementations
of the same functionality with the newly-added Kconfig options. Update
documentation and the config file for QEMU accordingly.
Change-Id: I550216fd2a8323342d6b605306b0b95ffd5dcd1c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55760
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/cpu/intel/model_206ax/Kconfig b/src/cpu/intel/model_206ax/Kconfig
index 67fd701..c168c9b 100644
--- a/src/cpu/intel/model_206ax/Kconfig
+++ b/src/cpu/intel/model_206ax/Kconfig
@@ -3,16 +3,11 @@
if CPU_INTEL_MODEL_206AX
-config ARCH_EXP_X86_64
- bool "Experimental 64bit support"
- depends on USE_NATIVE_RAMINIT
- default n
-
config CPU_SPECIFIC_OPTIONS
def_bool y
- select ARCH_ALL_STAGES_X86_64 if ARCH_EXP_X86_64
select ARCH_X86
select BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
+ select HAVE_EXP_X86_64_SUPPORT if USE_NATIVE_RAMINIT
select MMX
select SSE2
select UDELAY_TSC