Annotation of sys/arch/luna88k/luna88k/autoconf.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: autoconf.c,v 1.12 2007/06/15 01:19:08 deraadt Exp $ */
2: /*
3: * Copyright (c) 1998 Steve Murphree, Jr.
4: * Copyright (c) 1996 Nivas Madhur
5: * Copyright (c) 1994 Christian E. Hopps
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by Christian E. Hopps.
19: * 4. The name of the author may not be used to endorse or promote products
20: * derived from this software without specific prior written permission
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: *
33: */
34: #include <sys/param.h>
35: #include <sys/systm.h>
36: #include <sys/buf.h>
37: #include <sys/dkstat.h>
38: #include <sys/reboot.h>
39: #include <sys/conf.h>
40: #include <sys/device.h>
41: #include <sys/disklabel.h>
42: #include <sys/kernel.h>
43:
44: #include <machine/asm_macro.h> /* enable/disable interrupts */
45: #include <machine/autoconf.h>
46: #include <machine/cpu.h>
47: #include <machine/vmparam.h>
48:
49: #include <scsi/scsi_all.h>
50: #include <scsi/scsiconf.h>
51:
52: #include <dev/cons.h>
53:
54: /*
55: * The following several variables are related to
56: * the configuration process, and are used in initializing
57: * the machine.
58: */
59:
60: void dumpconf(void);
61: void get_autoboot_device(void);
62:
63: int cold = 1; /* 1 if still booting */
64:
65: void *bootaddr;
66: int bootpart;
67: struct device *bootdv; /* set by device drivers (if found) */
68:
69: /*
70: * called at boot time, configure all devices on the system.
71: */
72: void
73: cpu_configure()
74: {
75:
76: if (config_rootfound("mainbus", "mainbus") == 0)
77: panic("no mainbus found");
78:
79: /*
80: * Turn external interrupts on.
81: *
82: * XXX We have a race here. If we enable interrupts after setroot(),
83: * the kernel dies.
84: */
85: set_psr(get_psr() & ~PSR_IND);
86: spl0();
87: cold = 0;
88: }
89:
90: void
91: diskconf(void)
92: {
93: printf("boot device: %s\n",
94: (bootdv) ? bootdv->dv_xname : "<unknown>");
95: setroot(bootdv, 0, RB_USERREQ);
96: dumpconf();
97: }
98:
99: /*
100: * Get 'auto-boot' information from NVRAM
101: *
102: * XXX Right now we can not handle network boot.
103: */
104: struct autoboot_t
105: {
106: char cont[16];
107: int targ;
108: int part;
109: } autoboot;
110:
111: void
112: get_autoboot_device(void)
113: {
114: char *value, c;
115: int i, len, part;
116: extern char *nvram_by_symbol(char *); /* machdep.c */
117:
118: /* Assume default controller is internal spc (spc0) */
119: strlcpy(autoboot.cont, "spc0", sizeof(autoboot.cont));
120:
121: /* Get boot controler and SCSI target from NVRAM */
122: value = nvram_by_symbol("boot_unit");
123: if (value != NULL) {
124: len = strlen(value);
125: if (len == 1) {
126: c = value[0];
127: } else if (len == 2) {
128: if (value[0] == '1') {
129: /* External spc (spc1) */
130: strlcpy(autoboot.cont, "spc1", sizeof(autoboot.cont));
131: c = value[1];
132: }
133: }
134:
135: if ((c >= '0') && (c <= '6'))
136: autoboot.targ = 6 - (c - '0');
137: }
138:
139: /* Get partition number from NVRAM */
140: value = nvram_by_symbol("boot_partition");
141: if (value != NULL) {
142: len = strlen(value);
143: part = 0;
144: for (i = 0; i < len; i++)
145: part = part * 10 + (value[i] - '0');
146: autoboot.part = part;
147: }
148: }
149:
150: void
151: device_register(struct device *dev, void *aux)
152: {
153: /*
154: * scsi: sd,cd XXX: Can LUNA88K boot from CD-ROM?
155: */
156: if (strncmp("sd", dev->dv_xname, 2) == 0 ||
157: strncmp("cd", dev->dv_xname, 2) == 0) {
158: struct scsi_attach_args *sa = aux;
159: struct device *spcsc;
160:
161: spcsc = dev->dv_parent->dv_parent;
162:
163: if (strncmp(autoboot.cont, spcsc->dv_xname, 4) == 0 &&
164: sa->sa_sc_link->target == autoboot.targ &&
165: sa->sa_sc_link->lun == 0) {
166: bootdv = dev;
167: bootpart = autoboot.part;
168: return;
169: }
170: }
171: }
172:
173: struct nam2blk nam2blk[] = {
174: { "sd", 4 },
175: { "st", 5 },
176: { "rd", 7 },
177: { NULL, -1 }
178: };
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to autoconf.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / luna88k / luna88k