1 /* $NetBSD: boot_device.c,v 1.2 2008/04/28 20:23:18 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/types.h>
33 #include <machine/sbd.h>
34 #include "common.h"
35
36 /*
37 * Get boot device and unit number. IPL sets it.
38 */
39 void __nvsram_type_a(int *, int *);
40 void __nvsram_type_b(int *, int *);
41 void __nvsram_type_c(int *, int *);
42 void __nvsram_type_d(int *, int *);
43 void __nvsram_type_e(int *, int *);
44
45 void (*tab[])(int *, int *) = {
46 __nvsram_type_c, /* ER */
47 __nvsram_type_a, /* TR */
48 __nvsram_type_a, /* SR */
49 __nvsram_type_b, /* TR+2D */
50 __nvsram_type_b, /* TR+3D */
51 __nvsram_type_c, /* LR */
52 __nvsram_type_c, /* ER2 */
53 __nvsram_type_d, /* TR2 */
54 __nvsram_type_c, /* ER1V */
55 __nvsram_type_e, /* LRC */
56 __nvsram_type_c, /* SR2 */
57 __nvsram_type_d, /* ER+ */
58 __nvsram_type_c, /* TR2+ */
59 __nvsram_type_d, /* ER2A */
60 };
61
62 void
boot_device(int * type,int * unit,int * fd_format)63 boot_device(int *type, int *unit, int *fd_format)
64 {
65 int i;
66
67 *fd_format = SBD_INFO->fdd == 1 ? FD_FORMAT_2HD : FD_FORMAT_2D;
68 i = SBD_INFO->machine - 0x1010;
69 if (i < sizeof tab / sizeof tab[0])
70 return tab[i](type, unit);
71
72 return __nvsram_type_e(type, unit);
73 }
74
75 void
__nvsram_type_a(int * type,int * unit)76 __nvsram_type_a(int *type, int *unit)
77 {
78 /* TR, SR */
79 *type = NVSRAM_BOOTDEV_HARDDISK;
80 *unit = 0;
81 }
82
83 void
__nvsram_type_b(int * type,int * unit)84 __nvsram_type_b(int *type, int *unit)
85 {
86 /* TR+2D, TR+3D */
87 *type = NVSRAM_BOOTDEV_HARDDISK;
88 *unit = *(uint8_t *)0xba021808;
89 }
90
91 void
__nvsram_type_c(int * type,int * unit)92 __nvsram_type_c(int *type, int *unit)
93 {
94 /* ER, LR, ER2, ER1V, SR2, TR2+ */
95 *type = NVSRAM_BOOTDEV_HARDDISK;
96 *unit = *(uint8_t *)0xbb012088;
97 }
98
99 void
__nvsram_type_d(int * type,int * unit)100 __nvsram_type_d(int *type, int *unit)
101 {
102 /* TR2, ER+, ER2A */
103 *type = *(uint8_t *)0xbb023030;
104 *unit = *(uint8_t *)0xbb023034;
105 }
106
107 void
__nvsram_type_e(int * type,int * unit)108 __nvsram_type_e(int *type, int *unit)
109 {
110 /* LRC, TR2A, LER, LER_L, LER_H, MUS, LT, LT_L ... */
111 *type = *(uint8_t *)0xbe493030;
112 *unit = *(uint8_t *)0xbe493034;
113 }
114