1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*-
* Copyright (c) 2009 Oleksandr Tymoshenko
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <machine/cpuregs.h>
#include <mips/sentry5/s5reg.h>
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/cons.h>
#include <sys/kdb.h>
#include <vm/vm.h>
#include <vm/vm_page.h>
#include <machine/clock.h>
#include <machine/cpu.h>
#include <machine/hwfunc.h>
#include <machine/md_var.h>
#include <machine/trap.h>
#include <machine/vmparam.h>
#include <mips/atheros/ar71xxreg.h>
extern int *edata;
extern int *end;
void
platform_halt(void)
{
}
void
platform_identify(void)
{
}
void
platform_reset(void)
{
uint32_t reg = ATH_READ_REG(AR71XX_RST_RESET);
ATH_WRITE_REG(AR71XX_RST_RESET, reg | RST_RESET_FULL_CHIP);
/* Wait for reset */
while(1)
;
}
void
platform_trap_enter(void)
{
}
void
platform_trap_exit(void)
{
}
void
platform_start(__register_t a0 __unused, __register_t a1 __unused,
__register_t a2 __unused, __register_t a3 __unused)
{
vm_offset_t kernend;
uint64_t platform_counter_freq;
uint32_t reg;
/* clear the BSS and SBSS segments */
kernend = round_page((vm_offset_t)&end);
memset(&edata, 0, kernend - (vm_offset_t)(&edata));
/* TODO: Get available memory from RedBoot. Is it possible? */
realmem = btoc(64*1024*1024);
/* phys_avail regions are in bytes */
phys_avail[0] = MIPS_KSEG0_TO_PHYS((vm_offset_t)&end);
phys_avail[1] = ctob(realmem);
physmem = realmem;
/*
* ns8250 uart code uses DELAY so ticker should be inititalized
* before cninit. And tick_init_params refers to hz, so * init_param1
* should be called first.
*/
init_param1();
/* TODO: Get CPU freq from RedBoot. Is it possible? */
platform_counter_freq = 680000000UL;
mips_timer_init_params(platform_counter_freq, 0);
cninit();
printf("arguments: \n");
printf(" a0 = %08x\n", a0);
printf(" a1 = %08x\n", a1);
printf(" a2 = %08x\n", a2);
printf(" a3 = %08x\n", a3);
init_param2(physmem);
mips_cpu_init();
pmap_bootstrap();
mips_proc0_init();
mutex_init();
/*
* Reset USB devices
*/
reg = ATH_READ_REG(AR71XX_RST_RESET);
reg |=
RST_RESET_USB_OHCI_DLL | RST_RESET_USB_HOST | RST_RESET_USB_PHY;
ATH_WRITE_REG(AR71XX_RST_RESET, reg);
DELAY(1000);
reg &=
~(RST_RESET_USB_OHCI_DLL | RST_RESET_USB_HOST | RST_RESET_USB_PHY);
ATH_WRITE_REG(AR71XX_RST_RESET, reg);
ATH_WRITE_REG(AR71XX_USB_CTRL_CONFIG,
USB_CTRL_CONFIG_OHCI_DES_SWAP | USB_CTRL_CONFIG_OHCI_BUF_SWAP |
USB_CTRL_CONFIG_EHCI_DES_SWAP | USB_CTRL_CONFIG_EHCI_BUF_SWAP);
ATH_WRITE_REG(AR71XX_USB_CTRL_FLADJ,
(32 << USB_CTRL_FLADJ_HOST_SHIFT) | (3 << USB_CTRL_FLADJ_A5_SHIFT));
DELAY(1000);
#ifdef DDB
kdb_init();
#endif
}
|
