1
2#include <linux/init.h>
3#include <linux/types.h>
4#include <linux/kernel.h>
5#include <linux/mm.h>
6#include <linux/tty.h>
7#include <linux/console.h>
8#include <linux/rtc.h>
9#include <linux/vt_kern.h>
10#include <linux/interrupt.h>
11
12#include <asm/setup.h>
13#include <asm/bootinfo.h>
14#include <asm/bootinfo-apollo.h>
15#include <asm/byteorder.h>
16#include <asm/apollohw.h>
17#include <asm/irq.h>
18#include <asm/machdep.h>
19
20u_long sio01_physaddr;
21u_long sio23_physaddr;
22u_long rtc_physaddr;
23u_long pica_physaddr;
24u_long picb_physaddr;
25u_long cpuctrl_physaddr;
26u_long timer_physaddr;
27u_long apollo_model;
28
29extern void dn_sched_init(void);
30extern void dn_init_IRQ(void);
31extern int dn_dummy_hwclk(int, struct rtc_time *);
32extern void dn_dummy_reset(void);
33#ifdef CONFIG_HEARTBEAT
34static void dn_heartbeat(int on);
35#endif
36static irqreturn_t dn_timer_int(int irq,void *);
37static void dn_get_model(char *model);
38static const char *apollo_models[] = {
39 [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
40 [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
41 [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
42 [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
43 [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
44};
45
46int __init apollo_parse_bootinfo(const struct bi_record *record)
47{
48 int unknown = 0;
49 const void *data = record->data;
50
51 switch (be16_to_cpu(record->tag)) {
52 case BI_APOLLO_MODEL:
53 apollo_model = be32_to_cpup(data);
54 break;
55
56 default:
57 unknown=1;
58 }
59
60 return unknown;
61}
62
63static void __init dn_setup_model(void)
64{
65 pr_info("Apollo hardware found: [%s]\n",
66 apollo_models[apollo_model - APOLLO_DN3000]);
67
68 switch(apollo_model) {
69 case APOLLO_UNKNOWN:
70 panic("Unknown apollo model");
71 break;
72 case APOLLO_DN3000:
73 case APOLLO_DN3010:
74 sio01_physaddr=SAU8_SIO01_PHYSADDR;
75 rtc_physaddr=SAU8_RTC_PHYSADDR;
76 pica_physaddr=SAU8_PICA;
77 picb_physaddr=SAU8_PICB;
78 cpuctrl_physaddr=SAU8_CPUCTRL;
79 timer_physaddr=SAU8_TIMER;
80 break;
81 case APOLLO_DN4000:
82 sio01_physaddr=SAU7_SIO01_PHYSADDR;
83 sio23_physaddr=SAU7_SIO23_PHYSADDR;
84 rtc_physaddr=SAU7_RTC_PHYSADDR;
85 pica_physaddr=SAU7_PICA;
86 picb_physaddr=SAU7_PICB;
87 cpuctrl_physaddr=SAU7_CPUCTRL;
88 timer_physaddr=SAU7_TIMER;
89 break;
90 case APOLLO_DN4500:
91 panic("Apollo model not yet supported");
92 break;
93 case APOLLO_DN3500:
94 sio01_physaddr=SAU7_SIO01_PHYSADDR;
95 sio23_physaddr=SAU7_SIO23_PHYSADDR;
96 rtc_physaddr=SAU7_RTC_PHYSADDR;
97 pica_physaddr=SAU7_PICA;
98 picb_physaddr=SAU7_PICB;
99 cpuctrl_physaddr=SAU7_CPUCTRL;
100 timer_physaddr=SAU7_TIMER;
101 break;
102 default:
103 panic("Undefined apollo model");
104 break;
105 }
106
107
108}
109
110int dn_serial_console_wait_key(struct console *co) {
111
112 while(!(sio01.srb_csrb & 1))
113 barrier();
114 return sio01.rhrb_thrb;
115}
116
117void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
118{
119 while(count--) {
120 if (*str == '\n') {
121 sio01.rhrb_thrb = (unsigned char)'\r';
122 while (!(sio01.srb_csrb & 0x4))
123 ;
124 }
125 sio01.rhrb_thrb = (unsigned char)*str++;
126 while (!(sio01.srb_csrb & 0x4))
127 ;
128 }
129}
130
131void dn_serial_print (const char *str)
132{
133 while (*str) {
134 if (*str == '\n') {
135 sio01.rhrb_thrb = (unsigned char)'\r';
136 while (!(sio01.srb_csrb & 0x4))
137 ;
138 }
139 sio01.rhrb_thrb = (unsigned char)*str++;
140 while (!(sio01.srb_csrb & 0x4))
141 ;
142 }
143}
144
145void __init config_apollo(void)
146{
147 int i;
148
149 dn_setup_model();
150
151 mach_sched_init=dn_sched_init;
152 mach_init_IRQ=dn_init_IRQ;
153 mach_hwclk = dn_dummy_hwclk;
154 mach_reset = dn_dummy_reset;
155#ifdef CONFIG_HEARTBEAT
156 mach_heartbeat = dn_heartbeat;
157#endif
158 mach_get_model = dn_get_model;
159
160 cpuctrl=0xaa00;
161
162
163 for(i=0;i<0x400;i++)
164 addr_xlat_map[i]=0;
165
166}
167
168irqreturn_t dn_timer_int(int irq, void *dev_id)
169{
170 volatile unsigned char x;
171
172 legacy_timer_tick(1);
173 timer_heartbeat();
174
175 x = *(volatile unsigned char *)(apollo_timer + 3);
176 x = *(volatile unsigned char *)(apollo_timer + 5);
177
178 return IRQ_HANDLED;
179}
180
181void dn_sched_init(void)
182{
183
184 *(volatile unsigned char *)(apollo_timer + 3) = 0x01;
185 *(volatile unsigned char *)(apollo_timer + 1) = 0x40;
186 *(volatile unsigned char *)(apollo_timer + 5) = 0x09;
187 *(volatile unsigned char *)(apollo_timer + 7) = 0xc4;
188
189
190 *(volatile unsigned char *)(pica+1)&=(~8);
191
192#if 0
193 pr_info("*(0x10803) %02x\n",
194 *(volatile unsigned char *)(apollo_timer + 0x3));
195 pr_info("*(0x10803) %02x\n",
196 *(volatile unsigned char *)(apollo_timer + 0x3));
197#endif
198
199 if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", NULL))
200 pr_err("Couldn't register timer interrupt\n");
201}
202
203int dn_dummy_hwclk(int op, struct rtc_time *t) {
204
205
206 if(!op) {
207 t->tm_sec=rtc->second;
208 t->tm_min=rtc->minute;
209 t->tm_hour=rtc->hours;
210 t->tm_mday=rtc->day_of_month;
211 t->tm_wday=rtc->day_of_week;
212 t->tm_mon = rtc->month - 1;
213 t->tm_year=rtc->year;
214 if (t->tm_year < 70)
215 t->tm_year += 100;
216 } else {
217 rtc->second=t->tm_sec;
218 rtc->minute=t->tm_min;
219 rtc->hours=t->tm_hour;
220 rtc->day_of_month=t->tm_mday;
221 if(t->tm_wday!=-1)
222 rtc->day_of_week=t->tm_wday;
223 rtc->month = t->tm_mon + 1;
224 rtc->year = t->tm_year % 100;
225 }
226
227 return 0;
228
229}
230
231void dn_dummy_reset(void) {
232
233 dn_serial_print("The end !\n");
234
235 for(;;);
236
237}
238
239void dn_dummy_waitbut(void) {
240
241 dn_serial_print("waitbut\n");
242
243}
244
245static void dn_get_model(char *model)
246{
247 strcpy(model, "Apollo ");
248 if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
249 strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
250}
251
252#ifdef CONFIG_HEARTBEAT
253static int dn_cpuctrl=0xff00;
254
255static void dn_heartbeat(int on) {
256
257 if(on) {
258 dn_cpuctrl&=~0x100;
259 cpuctrl=dn_cpuctrl;
260 }
261 else {
262 dn_cpuctrl&=~0x100;
263 dn_cpuctrl|=0x100;
264 cpuctrl=dn_cpuctrl;
265 }
266}
267#endif
268
269
