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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
|
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/rtc.h>
#include <linux/vt_kern.h>
#include <linux/interrupt.h>
#include <asm/setup.h>
#include <asm/bootinfo.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/apollohw.h>
#include <asm/irq.h>
#include <asm/rtc.h>
#include <asm/machdep.h>
u_long sio01_physaddr;
u_long sio23_physaddr;
u_long rtc_physaddr;
u_long pica_physaddr;
u_long picb_physaddr;
u_long cpuctrl_physaddr;
u_long timer_physaddr;
u_long apollo_model;
extern void dn_sched_init(irqreturn_t (*handler)(int,void *,struct pt_regs *));
extern void dn_init_IRQ(void);
extern unsigned long dn_gettimeoffset(void);
extern int dn_dummy_hwclk(int, struct rtc_time *);
extern int dn_dummy_set_clock_mmss(unsigned long);
extern void dn_dummy_reset(void);
extern void dn_dummy_waitbut(void);
extern struct fb_info *dn_fb_init(long *);
extern void dn_dummy_debug_init(void);
extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp);
#ifdef CONFIG_HEARTBEAT
static void dn_heartbeat(int on);
#endif
static irqreturn_t dn_timer_int(int irq,void *, struct pt_regs *);
static void dn_get_model(char *model);
static const char *apollo_models[] = {
[APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
[APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
[APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
[APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
[APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
};
int apollo_parse_bootinfo(const struct bi_record *record) {
int unknown = 0;
const unsigned long *data = record->data;
switch(record->tag) {
case BI_APOLLO_MODEL:
apollo_model=*data;
break;
default:
unknown=1;
}
return unknown;
}
void dn_setup_model(void) {
printk("Apollo hardware found: ");
printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]);
switch(apollo_model) {
case APOLLO_UNKNOWN:
panic("Unknown apollo model");
break;
case APOLLO_DN3000:
case APOLLO_DN3010:
sio01_physaddr=SAU8_SIO01_PHYSADDR;
rtc_physaddr=SAU8_RTC_PHYSADDR;
pica_physaddr=SAU8_PICA;
picb_physaddr=SAU8_PICB;
cpuctrl_physaddr=SAU8_CPUCTRL;
timer_physaddr=SAU8_TIMER;
break;
case APOLLO_DN4000:
sio01_physaddr=SAU7_SIO01_PHYSADDR;
sio23_physaddr=SAU7_SIO23_PHYSADDR;
rtc_physaddr=SAU7_RTC_PHYSADDR;
pica_physaddr=SAU7_PICA;
picb_physaddr=SAU7_PICB;
cpuctrl_physaddr=SAU7_CPUCTRL;
timer_physaddr=SAU7_TIMER;
break;
case APOLLO_DN4500:
panic("Apollo model not yet supported");
break;
case APOLLO_DN3500:
sio01_physaddr=SAU7_SIO01_PHYSADDR;
sio23_physaddr=SAU7_SIO23_PHYSADDR;
rtc_physaddr=SAU7_RTC_PHYSADDR;
pica_physaddr=SAU7_PICA;
picb_physaddr=SAU7_PICB;
cpuctrl_physaddr=SAU7_CPUCTRL;
timer_physaddr=SAU7_TIMER;
break;
default:
panic("Undefined apollo model");
break;
}
}
int dn_serial_console_wait_key(struct console *co) {
while(!(sio01.srb_csrb & 1))
barrier();
return sio01.rhrb_thrb;
}
void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
{
while(count--) {
if (*str == '\n') {
sio01.rhrb_thrb = (unsigned char)'\r';
while (!(sio01.srb_csrb & 0x4))
;
}
sio01.rhrb_thrb = (unsigned char)*str++;
while (!(sio01.srb_csrb & 0x4))
;
}
}
void dn_serial_print (const char *str)
{
while (*str) {
if (*str == '\n') {
sio01.rhrb_thrb = (unsigned char)'\r';
while (!(sio01.srb_csrb & 0x4))
;
}
sio01.rhrb_thrb = (unsigned char)*str++;
while (!(sio01.srb_csrb & 0x4))
;
}
}
void config_apollo(void) {
int i;
dn_setup_model();
mach_sched_init=dn_sched_init; /* */
mach_init_IRQ=dn_init_IRQ;
mach_gettimeoffset = dn_gettimeoffset;
mach_max_dma_address = 0xffffffff;
mach_hwclk = dn_dummy_hwclk; /* */
mach_set_clock_mmss = dn_dummy_set_clock_mmss; /* */
mach_reset = dn_dummy_reset; /* */
#ifdef CONFIG_HEARTBEAT
mach_heartbeat = dn_heartbeat;
#endif
mach_get_model = dn_get_model;
cpuctrl=0xaa00;
/* clear DMA translation table */
for(i=0;i<0x400;i++)
addr_xlat_map[i]=0;
}
irqreturn_t dn_timer_int(int irq, void *dev_id, struct pt_regs *fp)
{
irqreturn_t (*timer_handler)(int, void *, struct pt_regs *) = dev_id;
volatile unsigned char x;
timer_handler(irq, dev_id, fp);
x=*(volatile unsigned char *)(timer+3);
x=*(volatile unsigned char *)(timer+5);
return IRQ_HANDLED;
}
void dn_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) {
/* program timer 1 */
*(volatile unsigned char *)(timer+3)=0x01;
*(volatile unsigned char *)(timer+1)=0x40;
*(volatile unsigned char *)(timer+5)=0x09;
*(volatile unsigned char *)(timer+7)=0xc4;
/* enable IRQ of PIC B */
*(volatile unsigned char *)(pica+1)&=(~8);
#if 0
printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
#endif
request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine);
}
unsigned long dn_gettimeoffset(void) {
return 0xdeadbeef;
}
int dn_dummy_hwclk(int op, struct rtc_time *t) {
if(!op) { /* read */
t->tm_sec=rtc->second;
t->tm_min=rtc->minute;
t->tm_hour=rtc->hours;
t->tm_mday=rtc->day_of_month;
t->tm_wday=rtc->day_of_week;
t->tm_mon=rtc->month;
t->tm_year=rtc->year;
} else {
rtc->second=t->tm_sec;
rtc->minute=t->tm_min;
rtc->hours=t->tm_hour;
rtc->day_of_month=t->tm_mday;
if(t->tm_wday!=-1)
rtc->day_of_week=t->tm_wday;
rtc->month=t->tm_mon;
rtc->year=t->tm_year;
}
return 0;
}
int dn_dummy_set_clock_mmss(unsigned long nowtime) {
printk("set_clock_mmss\n");
return 0;
}
void dn_dummy_reset(void) {
dn_serial_print("The end !\n");
for(;;);
}
void dn_dummy_waitbut(void) {
dn_serial_print("waitbut\n");
}
static void dn_get_model(char *model)
{
strcpy(model, "Apollo ");
if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
}
#ifdef CONFIG_HEARTBEAT
static int dn_cpuctrl=0xff00;
static void dn_heartbeat(int on) {
if(on) {
dn_cpuctrl&=~0x100;
cpuctrl=dn_cpuctrl;
}
else {
dn_cpuctrl&=~0x100;
dn_cpuctrl|=0x100;
cpuctrl=dn_cpuctrl;
}
}
#endif
|
