Hannah Williams (hannah.williams@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/15121
-gerrit
commit 0fae848214e6ba92b5b7532ec9b01363d59bb7dc Author: Hannah Williams hannah.williams@intel.com Date: Wed Jun 8 14:29:47 2016 -0700
soc/intel/apollolake: Add _PTS, _WAK and _SWS
Change-Id: I72f894fd14bf0e333d9fda970397a3c82de598c3 Signed-off-by: Hannah Williams hannah.williams@intel.com --- src/include/console/post_codes.h | 14 +++++++++ src/soc/intel/apollolake/acpi/platform.asl | 46 ++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+)
diff --git a/src/include/console/post_codes.h b/src/include/console/post_codes.h index 4373c78..8e47905 100644 --- a/src/include/console/post_codes.h +++ b/src/include/console/post_codes.h @@ -245,6 +245,20 @@ #define POST_FSP_NOTIFY_BEFORE_FINALIZE 0x95
/** + * \brief Indicate OS _PTS entry + * + * Called from _PTS asl method + */ +#define POST_OS_ENTER_PTS 0x96 + +/** + * \brief Indicate OS _WAK entry + * + * Called from within _WAK method + */ +#define POST_OS_ENTER_WAKE 0x97 + +/** * \brief Entry into elf boot * * This POST code is called right before invoking jmp_to_elf_entry() diff --git a/src/soc/intel/apollolake/acpi/platform.asl b/src/soc/intel/apollolake/acpi/platform.asl new file mode 100644 index 0000000..7c0ac4a --- /dev/null +++ b/src/soc/intel/apollolake/acpi/platform.asl @@ -0,0 +1,46 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 coresystems GmbH + * Copyright (C) 2012 Google Inc. + * Copyright (C) 2016 Intel Corp + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +/* Enable ACPI _SWS methods */ +#include <soc/intel/common/acpi/acpi_wake_source.asl> +#include <include/console/post_codes.h> + +/* Port 80 POST */ + +OperationRegion (POST, SystemIO, 0x80, 1) +Field (POST, ByteAcc, Lock, Preserve) +{ + DBG0, 8 +} + +/* + * The _PTS method (Prepare To Sleep) is called before the OS is + * entering a sleep state. The sleep state number is passed in Arg0 + */ + +Method(_PTS,1) +{ + Store(POST_OS_ENTER_PTS, DBG0) +} + +/* The _WAK method is called on system wakeup */ + +Method(_WAK,1) +{ + Store(POST_OS_ENTER_WAKE, DBG0) + Return(Package(){0,0}) +}