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diff --git a/src/southbridge/intel/i82801bx/i82801bx.h b/src/southbridge/intel/i82801bx/i82801bx.h
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+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007 Corey Osgood <corey.osgood@gmail.com>
+ *
+ * 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_I82801BX_I82801BX_H
+#define SOUTHBRIDGE_INTEL_I82801BX_I82801BX_H
+
+#if !defined( __ROMCC__ ) && !defined(__PRE_RAM__)
+#include "chip.h"
+extern void i82801bx_enable(device_t dev);
+#endif
+
+#define PCI_DMA_CFG 0x90
+#define SERIRQ_CNTL 0x64
+#define GEN_CNTL 0xd0
+#define GEN_STS 0xd4
+#define RTC_CONF 0xd8
+#define GEN_PMCON_3 0xa4
+
+#define PMBASE 0x40
+#define PMBASE_ADDR 0x0400 /* ACPI Base Address Register */
+#define ACPI_CNTL 0x44
+#define BIOS_CNTL 0x4E
+#define GPIO_BASE_ICH0_5 0x58 /* LPC GPIO Base Addr. Reg. (ICH0-ICH5) */
+#define GPIO_BASE_ICH6_9 0x48 /* LPC GPIO Base Address Register (ICH6-ICH9) */
+#define GPIO_CNTL_ICH0_5 0x5C /* LPC GPIO Control Register (ICH0-ICH5) */
+#define GPIO_CNTL_ICH6_9 0x4C /* LPC GPIO Control Register (ICH6-ICH9) */
+
+#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 FUNC_DIS 0xF2
+
+#define COM_DEC 0xE0 /* LPC I/F Communication Port Decode Ranges (ICH0-ICH5) */
+#define LPC_IO_DEC 0x80 /* IO Decode Ranges Register (ICH6-ICH9) */
+#define LPC_EN_ICH0_5 0xE6 /* LPC IF Enables Register (ICH0-ICH5) */
+#define LPC_EN_ICH6_9 0x82 /* LPC IF Enables Register (ICH6-ICH9) */
+
+#define SBUS_NUM 0x19
+#define SUB_BUS_NUM 0x1A
+#define SMLT 0x1B
+#define IOBASE 0x1C
+#define IOLIM 0x1D
+#define MEMBASE 0x20
+#define MEMLIM 0x22
+#define CNF 0x50
+#define MTT 0x70
+#define PCI_MAST_STS 0x82
+
+#define TCOBASE 0x60 /* TCO Base Address Register */
+#define TCO1_CNT 0x08 /* TCO1 Control Register */
+
+/* GEN_PMCON_3 bits */
+#define RTC_BATTERY_DEAD (1 << 2)
+#define RTC_POWER_FAILED (1 << 1)
+#define SLEEP_AFTER_POWER_FAIL (1 << 0)
+
+/* PCI Configuration Space (D31:F1) */
+#define IDE_TIM_PRI 0x40 /* IDE timings, primary */
+#define IDE_TIM_SEC 0x42 /* IDE timings, secondary */
+
+/* IDE_TIM bits */
+#define IDE_DECODE_ENABLE (1 << 15)
+
+/* PCI Configuration Space (D31:F3) */
+#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: Does it matter where we put the SMBus IO base, as long as we keep
+ * consistent and don't interfere with anything else?
+ */
+/* #define SMBUS_IO_BASE 0x1000 */
+#define SMBUS_IO_BASE 0x0f00
+
+#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_I82801BX_I82801BX_H */
+