1 /*-
2 * Copyright (C) 2007 by Oleksandr Tymoshenko. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
17 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
22 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: releng/8.0/sys/mips/adm5120/adm5120_machdep.c 185915 2008-12-11 07:00:23Z imp $");
29
30 #include "opt_ddb.h"
31
32 #include <sys/param.h>
33 #include <sys/conf.h>
34 #include <sys/kernel.h>
35 #include <sys/systm.h>
36 #include <sys/imgact.h>
37 #include <sys/bio.h>
38 #include <sys/buf.h>
39 #include <sys/bus.h>
40 #include <sys/cpu.h>
41 #include <sys/cons.h>
42 #include <sys/exec.h>
43 #include <sys/ucontext.h>
44 #include <sys/proc.h>
45 #include <sys/kdb.h>
46 #include <sys/ptrace.h>
47 #include <sys/reboot.h>
48 #include <sys/signalvar.h>
49 #include <sys/sysent.h>
50 #include <sys/sysproto.h>
51 #include <sys/user.h>
52
53 #include <vm/vm.h>
54 #include <vm/vm_object.h>
55 #include <vm/vm_page.h>
56 #include <vm/vm_pager.h>
57
58 #include <machine/cache.h>
59 #include <machine/clock.h>
60 #include <machine/cpu.h>
61 #include <machine/cpuinfo.h>
62 #include <machine/cpufunc.h>
63 #include <machine/cpuregs.h>
64 #include <machine/hwfunc.h>
65 #include <machine/intr_machdep.h>
66 #include <machine/locore.h>
67 #include <machine/md_var.h>
68 #include <machine/pte.h>
69 #include <machine/sigframe.h>
70 #include <machine/trap.h>
71 #include <machine/vmparam.h>
72
73 extern int *edata;
74 extern int *end;
75
76 static void
77 mips_init(void)
78 {
79 int i;
80
81 printf("entry: mips_init()\n");
82
83 bootverbose = 1;
84 realmem = btoc(16 << 20);
85
86 for (i = 0; i < 10; i++) {
87 phys_avail[i] = 0;
88 }
89
90 /* phys_avail regions are in bytes */
91 phys_avail[0] = MIPS_KSEG0_TO_PHYS((vm_offset_t)&end);
92 phys_avail[1] = ctob(realmem);
93
94 physmem = realmem;
95
96 init_param1();
97 init_param2(physmem);
98 mips_cpu_init();
99 pmap_bootstrap();
100 mips_proc0_init();
101 mutex_init();
102 #ifdef DDB
103 kdb_init();
104 #endif
105 }
106
107 void
108 platform_halt(void)
109 {
110
111 }
112
113
114 void
115 platform_identify(void)
116 {
117
118 }
119
120 void
121 platform_reset(void)
122 {
123
124 __asm __volatile("li $25, 0xbfc00000");
125 __asm __volatile("j $25");
126 }
127
128 void
129 platform_trap_enter(void)
130 {
131
132 }
133
134 void
135 platform_trap_exit(void)
136 {
137
138 }
139
140 void
141 platform_start(__register_t a0 __unused, __register_t a1 __unused,
142 __register_t a2 __unused, __register_t a3 __unused)
143 {
144 vm_offset_t kernend;
145 uint64_t platform_counter_freq = 175 * 1000 * 1000;
146
147 /* clear the BSS and SBSS segments */
148 kernend = round_page((vm_offset_t)&end);
149 memset(&edata, 0, kernend - (vm_offset_t)(&edata));
150
151 cninit();
152 mips_init();
153 mips_timer_init_params(platform_counter_freq, 0);
154 }
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