/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2008 coresystems GmbH
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef SOUTHBRIDGE_INTEL_I82801GX_I82801GX_H
#define SOUTHBRIDGE_INTEL_I82801GX_I82801GX_H

#include "chip.h"
extern void i82801gx_enable(device_t dev);

#define SERIRQ_CNTL		0x64

#define GEN_PMCON_1		0xa0
#define GEN_PMCON_2		0xa2
#define GEN_PMCON_3		0xa4

/* GEN_PMCON_3 bits */
#define RTC_BATTERY_DEAD	(1 << 2)
#define RTC_POWER_FAILED	(1 << 1)
#define SLEEP_AFTER_POWER_FAIL	(1 << 0)

#define PMBASE			0x40
#define ACPI_CNTL		0x44
#define BIOS_CNTL		0xDC
#define GPIO_BASE		0x48 /* LPC GPIO Base Address Register */
#define GPIO_CNTL		0x4C /* LPC GPIO Control Register */

#define PIRQA_ROUT		0x60
#define PIRQB_ROUT		0x61
#define PIRQC_ROUT		0x62
#define PIRQD_ROUT		0x63
#define PIRQE_ROUT		0x68
#define PIRQF_ROUT		0x69
#define PIRQG_ROUT		0x6A
#define PIRQH_ROUT		0x6B

#define LPC_IO_DEC		0x80 /* IO Decode Ranges Register */
#define LPC_EN			0x82 /* LPC IF Enables Register */

/* PCI Configuration Space (D31:F1): IDE */
#define INTR_LN			0x3c
#define IDE_TIM_PRI		0x40	/* IDE timings, primary */
#define   IDE_DECODE_ENABLE	(1 << 15)
#define   IDE_SITRE		(1 << 14)
#define IDE_TIM_SEC		0x42	/* IDE timings, secondary */
#define IDE_CONFIG		0x54	/* IDE I/O Configuration Register */
#define   SIG_MODE_NORMAL	(0 << 16)
#define   SIG_MODE_TRISTATE	(1 << 16)
#define   SIG_MODE_DRIVELOW	(2 << 16)
#define   FAST_PCB1		(1 << 13)
#define   FAST_PCB0		(1 << 12)
#define   PCB1			(1 <<  1)
#define   PCB0			(1 <<  0)

/* PCI Configuration Space (D31:F3): SMBus */
#define SMB_BASE		0x20
#define HOSTC			0x40

/* HOSTC bits */
#define I2C_EN			(1 << 2)
#define SMB_SMI_EN		(1 << 1)
#define HST_EN			(1 << 0)

/* SMBus I/O bits.
 * TODO: It does not matter where we put the SMBus IO base, as long as we keep
 * consistent and don't interfere with other devices. Stage2 will relocate 
 * this anyways. But it's a general problem we have not solved in the brightest
 * possible way.
 */
/* #define SMBUS_IO_BASE 0x1000 */
#define SMBUS_IO_BASE		0x0400

#define SMBHSTSTAT		0x0
#define SMBHSTCTL		0x2
#define SMBHSTCMD		0x3
#define SMBXMITADD		0x4
#define SMBHSTDAT0		0x5
#define SMBHSTDAT1		0x6
#define SMBBLKDAT		0x7
#define SMBTRNSADD		0x9
#define SMBSLVDATA		0xa
#define SMLINK_PIN_CTL		0xe
#define SMBUS_PIN_CTL		0xf

#define SMBUS_TIMEOUT		(10 * 1000 * 100)

/* HPET, if present */
#define HPET_ADDR		0xfed0000

#endif				/* SOUTHBRIDGE_INTEL_I82801GX_I82801GX_H */