1 /* $NetBSD: dbau1500.c,v 1.8 2015/06/09 22:49:55 matt 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 1.8 2015/06/09 22:49:55 matt Exp $");
36
37 #include <sys/param.h>
38 #include <sys/bus.h>
39 #include <sys/cpu.h>
40
41 #include <mips/locore.h>
42
43 #include <evbmips/alchemy/obiovar.h>
44 #include <evbmips/alchemy/board.h>
45 #include <evbmips/alchemy/dbau1500reg.h>
46
47 #define GET16(x) \
48 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)))
49 #define PUT16(x, v) \
50 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v))
51
52 static void dbau1500_init(void);
53 static int dbau1500_pci_intr_map(const struct pci_attach_args *,
54 pci_intr_handle_t *);
55 static void dbau1500_reboot(void);
56
57 static const struct obiodev dbau1500_devices[] = {
58 #if 0
59 { "aupcmcia", -1, -1 },
60 { "auaudio", -1, -1 },
61 #endif
62 { NULL },
63 };
64
65 static struct alchemy_board dbau1500_info = {
66 "AMD Alchemy DBAu1500",
67 dbau1500_devices,
68 dbau1500_init,
69 dbau1500_pci_intr_map,
70 dbau1500_reboot,
71 NULL, /* poweroff */
72 };
73
74 const struct alchemy_board *
board_info(void)75 board_info(void)
76 {
77
78 return &dbau1500_info;
79 }
80
81 void
dbau1500_init(void)82 dbau1500_init(void)
83 {
84 uint32_t whoami;
85
86 if (MIPS_PRID_COPTS(mips_options.mips_cpu_id) != MIPS_AU1500)
87 panic("dbau1500: CPU not an AU1500!");
88
89 /* check the whoami register for a match */
90 whoami = *((volatile uint32_t *)MIPS_PHYS_TO_KSEG1(DBAU1500_WHOAMI));
91
92 if (DBAU1500_WHOAMI_BOARD(whoami) != DBAU1500_WHOAMI_DBAU1500)
93 panic("dbau1500: WHOAMI (%x) not DBAu1500!", whoami);
94
95 printf("DBAu1500 (zinfandel), CPLDv%d, ",
96 DBAU1500_WHOAMI_CPLD(whoami));
97
98 if (DBAU1500_WHOAMI_DAUGHTER(whoami) != 0xf)
99 printf("daughtercard 0x%x\n",
100 DBAU1500_WHOAMI_DAUGHTER(whoami));
101 else
102 printf("no daughtercard\n");
103
104 /* leave console and clocks alone -- YAMON should have got it right! */
105 }
106
107 int
dbau1500_pci_intr_map(const struct pci_attach_args * pa,pci_intr_handle_t * ihp)108 dbau1500_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
109 {
110 /*
111 * This platform has PCI slot and IDE interrupts mapped
112 * identically. So we just need to look at which of the four
113 * PCI interrupts it is.
114 */
115
116 switch (pa->pa_intrpin) {
117 case 0:
118 /* not used */
119 return 1;
120 case 1:
121 *ihp = 1;
122 break;
123 case 2:
124 *ihp = 2;
125 break;
126 case 3:
127 *ihp = 4;
128 break;
129 case 4:
130 *ihp = 5;
131 break;
132 default:
133 printf("pci: bad interrupt pin %d\n", pa->pa_intrpin);
134 return 1;
135 }
136 return 0;
137 }
138
139 void
dbau1500_reboot(void)140 dbau1500_reboot(void)
141 {
142 PUT16(DBAU1500_SOFTWARE_RESET, 0);
143 delay(100000); /* 100 msec */
144 }
145