[PATCH 086/108] x86: Support Atom SoCs using SWSMISCI rather than the SWSCI
Simon Glass
sjg at chromium.org
Mon Jan 27 06:06:33 CET 2020
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 at chromium.org>
---
arch/x86/Kconfig | 6 ++++++
arch/x86/cpu/apollolake/Kconfig | 1 +
2 files changed, 7 insertions(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 61b6b48b81..930efc66cf 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -984,4 +984,10 @@ 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
diff --git a/arch/x86/cpu/apollolake/Kconfig b/arch/x86/cpu/apollolake/Kconfig
index 6c62da04f0..e8a9a75112 100644
--- a/arch/x86/cpu/apollolake/Kconfig
+++ b/arch/x86/cpu/apollolake/Kconfig
@@ -16,6 +16,7 @@ config INTEL_APOLLOLAKE
select PCIEX_LENGTH_256MB
select PCH_SUPPORT
select P2SB
+ select INTEL_GMA_SWSMISCI
select ACPI_GNVS_EXTERNAL
imply ENABLE_MRC_CACHE
imply AHCI_PCI
--
2.25.0.341.g760bfbb309-goog
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