/* * This file is part of the coreboot project. * * Copyright (C) 2005 Yinghai Lu * Copyright (C) 2009 coresystems GmbH * Copyright (C) 2014 Google Inc. * Copyright (C) 2017-2018 Intel Corporation. * * 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. */ #ifndef _SOC_CANNONLAKE_SMBUS_H_ #define _SOC_CANNONLAKE_SMBUS_H_ /* IO and MMIO registers under primary BAR */ /* Set address for PCH as SMBus slave role */ #define SMB_RCV_SLVA 0x09 /* TCO registers and fields live behind TCOBASE I/O bar in SMBus device. */ #define TCO1_STS 0x04 #define TCO_TIMEOUT (1 << 3) #define TCO2_STS 0x06 #define TCO_STS_SECOND_TO (1 << 1) #define TCO1_CNT 0x08 #define TCO_LOCK (1 << 12) #define TCO_TMR_HLT (1 << 11) /* * Default slave address value for PCH. This value is set to match default * value set by hardware. It is useful since PCH is able to respond even * before CPU is up. This is reset by RSMRST# but not by PLTRST#. */ #define SMBUS_SLAVE_ADDR 0x44 #endif