1/* $NetBSD: dbau1500.c,v 1.6 2011/07/01 18:44:45 dyoung 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 1.6 2011/07/01 18:44:45 dyoung Exp $");
36
37#include <sys/param.h>
38#include <sys/bus.h>
39
40#include <mips/locore.h>
41
42#include <evbmips/alchemy/obiovar.h>
43#include <evbmips/alchemy/board.h>
44#include <evbmips/alchemy/dbau1500reg.h>
45
46#define	GET16(x)	\
47	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)))
48#define	PUT16(x, v)	\
49	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v))
50
51static void dbau1500_init(void);
52static int dbau1500_pci_intr_map(const struct pci_attach_args *,
53				 pci_intr_handle_t *);
54static void dbau1500_reboot(void);
55
56static const struct obiodev dbau1500_devices[] = {
57#if 0
58	{ "aupcmcia", -1, -1 },
59	{ "auaudio", -1, -1 },
60#endif
61	{ NULL },
62};
63
64static struct alchemy_board dbau1500_info = {
65	"AMD Alchemy DBAu1500",
66	dbau1500_devices,
67	dbau1500_init,
68	dbau1500_pci_intr_map,
69	dbau1500_reboot,
70	NULL,	/* poweroff */
71};
72
73const struct alchemy_board *
74board_info(void)
75{
76
77	return &dbau1500_info;
78}
79
80void
81dbau1500_init(void)
82{
83	uint32_t	whoami;
84
85	if (MIPS_PRID_COPTS(mips_options.mips_cpu_id) != MIPS_AU1500)
86		panic("dbau1500: CPU not an AU1500!");
87
88	/* check the whoami register for a match */
89	whoami = *((volatile uint32_t *)MIPS_PHYS_TO_KSEG1(DBAU1500_WHOAMI));
90
91	if (DBAU1500_WHOAMI_BOARD(whoami) != DBAU1500_WHOAMI_DBAU1500)
92		panic("dbau1500: WHOAMI (%x) not DBAu1500!", whoami);
93
94	printf("DBAu1500 (zinfandel), CPLDv%d, ",
95	    DBAU1500_WHOAMI_CPLD(whoami));
96
97	if (DBAU1500_WHOAMI_DAUGHTER(whoami) != 0xf)
98		printf("daughtercard 0x%x\n",
99		    DBAU1500_WHOAMI_DAUGHTER(whoami));
100	else
101		printf("no daughtercard\n");
102
103	/* leave console and clocks alone -- YAMON should have got it right! */
104}
105
106int
107dbau1500_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
108{
109	/*
110	 * This platform has PCI slot and IDE interrupts mapped
111	 * identically.  So we just need to look at which of the four
112	 * PCI interrupts it is.
113	 */
114
115	switch (pa->pa_intrpin) {
116	case 0:
117		/* not used */
118		return 1;
119	case 1:
120		*ihp = 1;
121		break;
122	case 2:
123		*ihp = 2;
124		break;
125	case 3:
126		*ihp = 4;
127		break;
128	case 4:
129		*ihp = 5;
130		break;
131	default:
132		printf("pci: bad interrupt pin %d\n", pa->pa_intrpin);
133		return 1;
134	}
135	return 0;
136}
137
138void
139dbau1500_reboot(void)
140{
141	PUT16(DBAU1500_SOFTWARE_RESET, 0);
142	delay(100000);	/* 100 msec */
143}
144