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x86: Support Atom SoCs using SWSMISCI rather than the SWSCI

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Some Atom SoCs use SWSMISCI for SMI control. Add a Kconfig to select this.
It is used on Apollo Lake.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2020-09-22 12:45:15 -06:00 committed by Bin Meng
parent 9b3e6d4c1f
commit b98b91b6a9
2 changed files with 7 additions and 0 deletions
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6
arch/x86/Kconfig
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@ -1017,4 +1017,10 @@ config INTEL_GENERIC_WIFI
network functionality. It is only here to generate the ACPI tables
required by Linux.
config INTEL_GMA_SWSMISCI
bool
help
Select this option for Atom-based platforms which use the SWSMISCI
register (0xe0) rather than the SWSCI register (0xe8).
endmenu

1
arch/x86/cpu/apollolake/Kconfig
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@ -17,6 +17,7 @@ config INTEL_APOLLOLAKE
select PCH_SUPPORT
select P2SB
select SMP_AP_WORK
select INTEL_GMA_SWSMISCI
select ACPI_GNVS_EXTERNAL
imply ENABLE_MRC_CACHE
imply AHCI_PCI