dbau1500.c revision 1.3 
1/* $NetBSD: dbau1500.c,v 1.3 2006/02/16 01:52:37 gdamore Exp $ */
2
3/*-
4 * Copyright (c) 2006 Itronix Inc.
5 * All rights reserved.
6 *
7 * Written by Garrett D'Amore for Itronix Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. The name of Itronix Inc. may not be used to endorse
18 *    or promote products derived from this software without specific
19 *    prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
28 * ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: dbau1500.c,v 1.3 2006/02/16 01:52:37 gdamore Exp $");
36
37#include <sys/param.h>
38#include <machine/bus.h>
39#include <machine/locore.h>
40#include <evbmips/alchemy/obiovar.h>
41#include <evbmips/alchemy/board.h>
42#include <evbmips/alchemy/dbau1500reg.h>
43
44#define	GET16(x)	\
45	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)))
46#define	PUT16(x, v)	\
47	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v))
48
49static void dbau1500_init(void);
50static int dbau1500_pci_intr_map(struct pci_attach_args *,
51				 pci_intr_handle_t *);
52static void dbau1500_reboot(void);
53
54static const struct obiodev dbau1500_devices[] = {
55#if 0
56	{ "aupcmcia", -1, -1 },
57	{ "auaudio", -1, -1 },
58#endif
59	{ NULL },
60};
61
62static struct alchemy_board dbau1500_info = {
63	"AMD Alchemy DBAu1500",
64	dbau1500_devices,
65	dbau1500_init,
66	dbau1500_pci_intr_map,
67	dbau1500_reboot,
68	NULL,	/* poweroff */
69};
70
71const struct alchemy_board *
72board_info(void)
73{
74
75	return &dbau1500_info;
76}
77
78void
79dbau1500_init(void)
80{
81	uint32_t	whoami;
82
83	if (MIPS_PRID_COPTS(cpu_id) != MIPS_AU1500)
84		panic("dbau1500: CPU not an AU1500!");
85
86	/* check the whoami register for a match */
87	whoami = *((volatile uint32_t *)MIPS_PHYS_TO_KSEG1(DBAU1500_WHOAMI));
88
89	if (DBAU1500_WHOAMI_BOARD(whoami) != DBAU1500_WHOAMI_DBAU1500)
90		panic("dbau1500: WHOAMI (%x) not DBAu1500!", whoami);
91
92	printf("DBAu1500 (zinfandel), CPLDv%d, ",
93	    DBAU1500_WHOAMI_CPLD(whoami));
94
95	if (DBAU1500_WHOAMI_DAUGHTER(whoami) != 0xf)
96		printf("daughtercard 0x%x\n",
97		    DBAU1500_WHOAMI_DAUGHTER(whoami));
98	else
99		printf("no daughtercard\n");
100
101	/* leave console and clocks alone -- YAMON should have got it right! */
102}
103
104int
105dbau1500_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
106{
107	/*
108	 * This platform has PCI slot and IDE interrupts mapped
109	 * identically.  So we just need to look at which of the four
110	 * PCI interrupts it is.
111	 */
112
113	switch (pa->pa_intrpin) {
114	case 0:
115		/* not used */
116		return 1;
117	case 1:
118		*ihp = 1;
119		break;
120	case 2:
121		*ihp = 2;
122		break;
123	case 3:
124		*ihp = 4;
125		break;
126	case 4:
127		*ihp = 5;
128		break;
129	default:
130		printf("pci: bad interrupt pin %d\n", pa->pa_intrpin);
131		return 1;
132	}
133	return 0;
134}
135
136void
137dbau1500_reboot(void)
138{
139	PUT16(DBAU1500_SOFTWARE_RESET, 0);
140	delay(100000);	/* 100 msec */
141}
142