ichwd.h revision 175012
1/*-
2 * Copyright (c) 2004 Texas A&M University
3 * All rights reserved.
4 *
5 * Developer: Wm. Daryl Hawkins
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/ichwd/ichwd.h 175012 2007-12-31 11:42:31Z des $
29 */
30
31#ifndef _ICHWD_H_
32#define _ICHWD_H_
33
34struct ichwd_device {
35	uint16_t		 device;
36	char			*desc;
37	unsigned int		 version;
38};
39
40struct ichwd_softc {
41	device_t		 device;
42	device_t		 ich;
43	int			 ich_version;
44
45	int			 active;
46	unsigned int		 timeout;
47
48	int			 smi_rid;
49	struct resource		*smi_res;
50	bus_space_tag_t		 smi_bst;
51	bus_space_handle_t	 smi_bsh;
52
53	int			 tco_rid;
54	struct resource		*tco_res;
55	bus_space_tag_t		 tco_bst;
56	bus_space_handle_t	 tco_bsh;
57
58	int			 gcs_rid;
59	struct resource		*gcs_res;
60	bus_space_tag_t		 gcs_bst;
61	bus_space_handle_t	 gcs_bsh;
62
63	eventhandler_tag	 ev_tag;
64};
65
66#define VENDORID_INTEL		0x8086
67#define DEVICEID_82801AA	0x2410
68#define DEVICEID_82801AB	0x2420
69#define DEVICEID_82801BA	0x2440
70#define DEVICEID_82801BAM	0x244c
71#define DEVICEID_82801CA	0x2480
72#define DEVICEID_82801CAM	0x248c
73#define DEVICEID_82801DB	0x24c0
74#define DEVICEID_82801DBM	0x24cc
75#define DEVICEID_82801E		0x2450
76#define DEVICEID_82801EBR	0x24d0
77#define DEVICEID_6300ESB	0x25a1
78#define DEVICEID_82801FBR	0x2640
79#define DEVICEID_ICH6M		0x2641
80#define DEVICEID_ICH6W		0x2642
81#define DEVICEID_63XXESB	0x2670
82#define DEVICEID_ICH7		0x27b8
83#define DEVICEID_ICH7M		0x27b9
84#define DEVICEID_ICH7MDH	0x27bd
85#define DEVICEID_ICH8		0x2810
86#define DEVICEID_ICH8DH		0x2812
87#define DEVICEID_ICH8DO		0x2814
88
89/* ICH LPC Interface Bridge Registers (ICH5 and older) */
90#define ICH_GEN_STA		0xd4
91#define ICH_GEN_STA_NO_REBOOT	0x02
92#define ICH_PMBASE		0x40 /* ACPI base address register */
93#define ICH_PMBASE_MASK		0x7f80 /* bits 7-15 */
94
95/* ICH Chipset Configuration Registers (ICH6 and newer) */
96#define ICH_RCBA		0xf0
97#define ICH_GCS_OFFSET		0x3410
98#define ICH_GCS_SIZE		0x4
99#define ICH_GCS_NO_REBOOT	0x20
100
101/* register names and locations (relative to PMBASE) */
102#define SMI_BASE		0x30 /* base address for SMI registers */
103#define SMI_LEN			0x08
104#define SMI_EN			0x00 /* SMI Control and Enable Register */
105#define SMI_STS			0x04 /* SMI Status Register */
106#define TCO_BASE		0x60 /* base address for TCO registers */
107#define TCO_LEN			0x20
108#define TCO_RLD			0x00 /* TCO Reload and Current Value */
109#define TCO_TMR1		0x01 /* TCO Timer Initial Value
110					(ICH5 and older, 8 bits) */
111#define TCO_TMR2		0x12 /* TCO Timer Initial Value
112					(ICH6 and newer, 16 bits) */
113#define TCO_DAT_IN		0x02 /* TCO Data In (DO NOT USE) */
114#define TCO_DAT_OUT		0x03 /* TCO Data Out (DO NOT USE) */
115#define TCO1_STS		0x04 /* TCO Status 1 */
116#define TCO2_STS		0x06 /* TCO Status 2 */
117#define TCO1_CNT		0x08 /* TCO Control 1 */
118#define TCO2_CNT		0x08 /* TCO Control 2 */
119
120/* bit definitions for SMI_EN and SMI_STS */
121#define SMI_TCO_EN		0x2000
122#define SMI_TCO_STS		0x2000
123
124/* timer value mask for TCO_RLD and TCO_TMR */
125#define TCO_TIMER_MASK		0x1f
126
127/* status bits for TCO1_STS */
128#define TCO_TIMEOUT		0x08 /* timed out */
129#define TCO_INT_STS		0x04 /* data out (DO NOT USE) */
130#define TCO_SMI_STS		0x02 /* data in (DO NOT USE) */
131
132/* status bits for TCO2_STS */
133#define TCO_BOOT_STS		0x04 /* failed to come out of reset */
134#define TCO_SECOND_TO_STS	0x02 /* ran down twice */
135
136/* control bits for TCO1_CNT */
137#define TCO_TMR_HALT		0x0800 /* clear to enable WDT */
138#define TCO_CNT_PRESERVE	0x0200 /* preserve these bits */
139
140/* approximate length in nanoseconds of one WDT tick (about 0.6 sec) */
141#define ICHWD_TICK		600000000
142
143#endif
144