m68k: Kill several external declarations in source files
[linux-3.10.git] / arch / m68k / apollo / config.c
1 #include <linux/types.h>
2 #include <linux/kernel.h>
3 #include <linux/mm.h>
4 #include <linux/tty.h>
5 #include <linux/console.h>
6 #include <linux/rtc.h>
7 #include <linux/vt_kern.h>
8 #include <linux/interrupt.h>
9
10 #include <asm/setup.h>
11 #include <asm/bootinfo.h>
12 #include <asm/system.h>
13 #include <asm/pgtable.h>
14 #include <asm/apollohw.h>
15 #include <asm/irq.h>
16 #include <asm/rtc.h>
17 #include <asm/machdep.h>
18
19 u_long sio01_physaddr;
20 u_long sio23_physaddr;
21 u_long rtc_physaddr;
22 u_long pica_physaddr;
23 u_long picb_physaddr;
24 u_long cpuctrl_physaddr;
25 u_long timer_physaddr;
26 u_long apollo_model;
27
28 extern void dn_sched_init(irq_handler_t handler);
29 extern void dn_init_IRQ(void);
30 extern unsigned long dn_gettimeoffset(void);
31 extern int dn_dummy_hwclk(int, struct rtc_time *);
32 extern int dn_dummy_set_clock_mmss(unsigned long);
33 extern void dn_dummy_reset(void);
34 #ifdef CONFIG_HEARTBEAT
35 static void dn_heartbeat(int on);
36 #endif
37 static irqreturn_t dn_timer_int(int irq,void *);
38 static void dn_get_model(char *model);
39 static const char *apollo_models[] = {
40         [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
41         [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
42         [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
43         [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
44         [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
45 };
46
47 int apollo_parse_bootinfo(const struct bi_record *record) {
48
49         int unknown = 0;
50         const unsigned long *data = record->data;
51
52         switch(record->tag) {
53                 case BI_APOLLO_MODEL:
54                         apollo_model=*data;
55                         break;
56
57                 default:
58                          unknown=1;
59         }
60
61         return unknown;
62 }
63
64 void dn_setup_model(void) {
65
66
67         printk("Apollo hardware found: ");
68         printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]);
69
70         switch(apollo_model) {
71                 case APOLLO_UNKNOWN:
72                         panic("Unknown apollo model");
73                         break;
74                 case APOLLO_DN3000:
75                 case APOLLO_DN3010:
76                         sio01_physaddr=SAU8_SIO01_PHYSADDR;
77                         rtc_physaddr=SAU8_RTC_PHYSADDR;
78                         pica_physaddr=SAU8_PICA;
79                         picb_physaddr=SAU8_PICB;
80                         cpuctrl_physaddr=SAU8_CPUCTRL;
81                         timer_physaddr=SAU8_TIMER;
82                         break;
83                 case APOLLO_DN4000:
84                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
85                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
86                         rtc_physaddr=SAU7_RTC_PHYSADDR;
87                         pica_physaddr=SAU7_PICA;
88                         picb_physaddr=SAU7_PICB;
89                         cpuctrl_physaddr=SAU7_CPUCTRL;
90                         timer_physaddr=SAU7_TIMER;
91                         break;
92                 case APOLLO_DN4500:
93                         panic("Apollo model not yet supported");
94                         break;
95                 case APOLLO_DN3500:
96                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
97                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
98                         rtc_physaddr=SAU7_RTC_PHYSADDR;
99                         pica_physaddr=SAU7_PICA;
100                         picb_physaddr=SAU7_PICB;
101                         cpuctrl_physaddr=SAU7_CPUCTRL;
102                         timer_physaddr=SAU7_TIMER;
103                         break;
104                 default:
105                         panic("Undefined apollo model");
106                         break;
107         }
108
109
110 }
111
112 int dn_serial_console_wait_key(struct console *co) {
113
114         while(!(sio01.srb_csrb & 1))
115                 barrier();
116         return sio01.rhrb_thrb;
117 }
118
119 void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
120 {
121    while(count--) {
122         if (*str == '\n') {
123         sio01.rhrb_thrb = (unsigned char)'\r';
124         while (!(sio01.srb_csrb & 0x4))
125                 ;
126         }
127     sio01.rhrb_thrb = (unsigned char)*str++;
128     while (!(sio01.srb_csrb & 0x4))
129             ;
130   }
131 }
132
133 void dn_serial_print (const char *str)
134 {
135     while (*str) {
136         if (*str == '\n') {
137             sio01.rhrb_thrb = (unsigned char)'\r';
138             while (!(sio01.srb_csrb & 0x4))
139                 ;
140         }
141         sio01.rhrb_thrb = (unsigned char)*str++;
142         while (!(sio01.srb_csrb & 0x4))
143             ;
144     }
145 }
146
147 void __init config_apollo(void)
148 {
149         int i;
150
151         dn_setup_model();
152
153         mach_sched_init=dn_sched_init; /* */
154         mach_init_IRQ=dn_init_IRQ;
155         mach_gettimeoffset   = dn_gettimeoffset;
156         mach_max_dma_address = 0xffffffff;
157         mach_hwclk           = dn_dummy_hwclk; /* */
158         mach_set_clock_mmss  = dn_dummy_set_clock_mmss; /* */
159         mach_reset           = dn_dummy_reset;  /* */
160 #ifdef CONFIG_HEARTBEAT
161         mach_heartbeat = dn_heartbeat;
162 #endif
163         mach_get_model       = dn_get_model;
164
165         cpuctrl=0xaa00;
166
167         /* clear DMA translation table */
168         for(i=0;i<0x400;i++)
169                 addr_xlat_map[i]=0;
170
171 }
172
173 irqreturn_t dn_timer_int(int irq, void *dev_id)
174 {
175         irq_handler_t timer_handler = dev_id;
176
177         volatile unsigned char x;
178
179         timer_handler(irq, dev_id);
180
181         x=*(volatile unsigned char *)(timer+3);
182         x=*(volatile unsigned char *)(timer+5);
183
184         return IRQ_HANDLED;
185 }
186
187 void dn_sched_init(irq_handler_t timer_routine)
188 {
189         /* program timer 1 */
190         *(volatile unsigned char *)(timer+3)=0x01;
191         *(volatile unsigned char *)(timer+1)=0x40;
192         *(volatile unsigned char *)(timer+5)=0x09;
193         *(volatile unsigned char *)(timer+7)=0xc4;
194
195         /* enable IRQ of PIC B */
196         *(volatile unsigned char *)(pica+1)&=(~8);
197
198 #if 0
199         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
200         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
201 #endif
202
203         request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine);
204 }
205
206 unsigned long dn_gettimeoffset(void) {
207
208         return 0xdeadbeef;
209
210 }
211
212 int dn_dummy_hwclk(int op, struct rtc_time *t) {
213
214
215   if(!op) { /* read */
216     t->tm_sec=rtc->second;
217     t->tm_min=rtc->minute;
218     t->tm_hour=rtc->hours;
219     t->tm_mday=rtc->day_of_month;
220     t->tm_wday=rtc->day_of_week;
221     t->tm_mon=rtc->month;
222     t->tm_year=rtc->year;
223   } else {
224     rtc->second=t->tm_sec;
225     rtc->minute=t->tm_min;
226     rtc->hours=t->tm_hour;
227     rtc->day_of_month=t->tm_mday;
228     if(t->tm_wday!=-1)
229       rtc->day_of_week=t->tm_wday;
230     rtc->month=t->tm_mon;
231     rtc->year=t->tm_year;
232   }
233
234   return 0;
235
236 }
237
238 int dn_dummy_set_clock_mmss(unsigned long nowtime) {
239
240   printk("set_clock_mmss\n");
241
242   return 0;
243
244 }
245
246 void dn_dummy_reset(void) {
247
248   dn_serial_print("The end !\n");
249
250   for(;;);
251
252 }
253
254 void dn_dummy_waitbut(void) {
255
256   dn_serial_print("waitbut\n");
257
258 }
259
260 static void dn_get_model(char *model)
261 {
262     strcpy(model, "Apollo ");
263     if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
264         strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
265 }
266
267 #ifdef CONFIG_HEARTBEAT
268 static int dn_cpuctrl=0xff00;
269
270 static void dn_heartbeat(int on) {
271
272         if(on) {
273                 dn_cpuctrl&=~0x100;
274                 cpuctrl=dn_cpuctrl;
275         }
276         else {
277                 dn_cpuctrl&=~0x100;
278                 dn_cpuctrl|=0x100;
279                 cpuctrl=dn_cpuctrl;
280         }
281 }
282 #endif
283