x86: Select advanced Intel code only if allowed
At present most of the Intel-specific code is built on all devices, even
those which don't have software support for the features provided there.
This means that any board can enable CONFIG_INTEL_ACPIGEN even if it does
not have the required features.
Add a new INTEL_SOC option to control this access. This must be selected
by SoCs that can support the required features.
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fixed a typo in arch/x86/Kconfig]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 94081a1..5b089af 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1001,6 +1001,19 @@
config PCIEX_LENGTH_64MB
bool
+config INTEL_SOC
+ bool
+ help
+ This is enabled on Intel SoCs that can support various advanced
+ features such as power management (requiring asm/arch/pm.h), system
+ agent (asm/arch/systemagent.h) and an I/O map for ACPI
+ (asm/arch/iomap.h).
+
+ This cannot be selected in a defconfig file. It must be enabled by a
+ 'select' in the SoC's Kconfig.
+
+if INTEL_SOC
+
config INTEL_ACPIGEN
bool "Support ACPI table generation for Intel SoCs"
depends on ACPIGEN
@@ -1032,4 +1045,6 @@
Select this option for Atom-based platforms which use the SWSMISCI
register (0xe0) rather than the SWSCI register (0xe8).
+endif # INTEL_SOC
+
endmenu