From b98b91b6a98bbc9b43c70896c7ef89bd55c430bc Mon Sep 17 00:00:00 2001 From: Simon Glass <sjg@chromium.org> Date: Tue, 22 Sep 2020 12:45:15 -0600 Subject: [PATCH] x86: Support Atom SoCs using SWSMISCI rather than the SWSCI 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> --- 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 495629d32e..eddf2a774e 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -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 diff --git a/arch/x86/cpu/apollolake/Kconfig b/arch/x86/cpu/apollolake/Kconfig index 319f12684b..35a425cd1b 100644 --- a/arch/x86/cpu/apollolake/Kconfig +++ b/arch/x86/cpu/apollolake/Kconfig @@ -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 -- 2.39.5