[PATCH] m68k: Moved initialisation of conswitchp from subarches to global arch setup
[linux-2.6.git] / arch / m68k / apollo / config.c
1 #include <linux/config.h>
2 #include <linux/types.h>
3 #include <linux/kernel.h>
4 #include <linux/mm.h>
5 #include <linux/tty.h>
6 #include <linux/console.h>
7 #include <linux/rtc.h>
8 #include <linux/vt_kern.h>
9 #include <linux/interrupt.h>
10
11 #include <asm/setup.h>
12 #include <asm/bootinfo.h>
13 #include <asm/system.h>
14 #include <asm/pgtable.h>
15 #include <asm/apollohw.h>
16 #include <asm/irq.h>
17 #include <asm/rtc.h>
18 #include <asm/machdep.h>
19
20 u_long sio01_physaddr;
21 u_long sio23_physaddr;
22 u_long rtc_physaddr;
23 u_long pica_physaddr;
24 u_long picb_physaddr;
25 u_long cpuctrl_physaddr;
26 u_long timer_physaddr;
27 u_long apollo_model;
28
29 extern void dn_sched_init(irqreturn_t (*handler)(int,void *,struct pt_regs *));
30 extern void dn_init_IRQ(void);
31 extern int dn_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id);
32 extern void dn_free_irq(unsigned int irq, void *dev_id);
33 extern void dn_enable_irq(unsigned int);
34 extern void dn_disable_irq(unsigned int);
35 extern int show_dn_interrupts(struct seq_file *, void *);
36 extern unsigned long dn_gettimeoffset(void);
37 extern int dn_dummy_hwclk(int, struct rtc_time *);
38 extern int dn_dummy_set_clock_mmss(unsigned long);
39 extern void dn_dummy_reset(void);
40 extern void dn_dummy_waitbut(void);
41 extern struct fb_info *dn_fb_init(long *);
42 extern void dn_dummy_debug_init(void);
43 extern void dn_dummy_video_setup(char *,int *);
44 extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp);
45 #ifdef CONFIG_HEARTBEAT
46 static void dn_heartbeat(int on);
47 #endif
48 static irqreturn_t dn_timer_int(int irq,void *, struct pt_regs *);
49 static irqreturn_t (*sched_timer_handler)(int, void *, struct pt_regs *)=NULL;
50 static void dn_get_model(char *model);
51 static const char *apollo_models[] = {
52         [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
53         [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
54         [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
55         [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
56         [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
57 };
58
59 int apollo_parse_bootinfo(const struct bi_record *record) {
60
61         int unknown = 0;
62         const unsigned long *data = record->data;
63
64         switch(record->tag) {
65                 case BI_APOLLO_MODEL:
66                         apollo_model=*data;
67                         break;
68
69                 default:
70                          unknown=1;
71         }
72
73         return unknown;
74 }
75
76 void dn_setup_model(void) {
77
78
79         printk("Apollo hardware found: ");
80         printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]);
81
82         switch(apollo_model) {
83                 case APOLLO_UNKNOWN:
84                         panic("Unknown apollo model");
85                         break;
86                 case APOLLO_DN3000:
87                 case APOLLO_DN3010:
88                         sio01_physaddr=SAU8_SIO01_PHYSADDR;
89                         rtc_physaddr=SAU8_RTC_PHYSADDR;
90                         pica_physaddr=SAU8_PICA;
91                         picb_physaddr=SAU8_PICB;
92                         cpuctrl_physaddr=SAU8_CPUCTRL;
93                         timer_physaddr=SAU8_TIMER;
94                         break;
95                 case APOLLO_DN4000:
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                 case APOLLO_DN4500:
105                         panic("Apollo model not yet supported");
106                         break;
107                 case APOLLO_DN3500:
108                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
109                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
110                         rtc_physaddr=SAU7_RTC_PHYSADDR;
111                         pica_physaddr=SAU7_PICA;
112                         picb_physaddr=SAU7_PICB;
113                         cpuctrl_physaddr=SAU7_CPUCTRL;
114                         timer_physaddr=SAU7_TIMER;
115                         break;
116                 default:
117                         panic("Undefined apollo model");
118                         break;
119         }
120
121
122 }
123
124 int dn_serial_console_wait_key(struct console *co) {
125
126         while(!(sio01.srb_csrb & 1))
127                 barrier();
128         return sio01.rhrb_thrb;
129 }
130
131 void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
132 {
133    while(count--) {
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
145 void dn_serial_print (const char *str)
146 {
147     while (*str) {
148         if (*str == '\n') {
149             sio01.rhrb_thrb = (unsigned char)'\r';
150             while (!(sio01.srb_csrb & 0x4))
151                 ;
152         }
153         sio01.rhrb_thrb = (unsigned char)*str++;
154         while (!(sio01.srb_csrb & 0x4))
155             ;
156     }
157 }
158
159 void config_apollo(void) {
160
161         int i;
162
163         dn_setup_model();
164
165         mach_sched_init=dn_sched_init; /* */
166         mach_init_IRQ=dn_init_IRQ;
167         mach_default_handler=NULL;
168         mach_request_irq     = dn_request_irq;
169         mach_free_irq        = dn_free_irq;
170         enable_irq      = dn_enable_irq;
171         disable_irq     = dn_disable_irq;
172         mach_get_irq_list    = show_dn_interrupts;
173         mach_gettimeoffset   = dn_gettimeoffset;
174         mach_max_dma_address = 0xffffffff;
175         mach_hwclk           = dn_dummy_hwclk; /* */
176         mach_set_clock_mmss  = dn_dummy_set_clock_mmss; /* */
177         mach_process_int     = dn_process_int;
178         mach_reset           = dn_dummy_reset;  /* */
179 #ifdef CONFIG_HEARTBEAT
180         mach_heartbeat = dn_heartbeat;
181 #endif
182         mach_get_model       = dn_get_model;
183
184         cpuctrl=0xaa00;
185
186         /* clear DMA translation table */
187         for(i=0;i<0x400;i++)
188                 addr_xlat_map[i]=0;
189
190 }
191
192 irqreturn_t dn_timer_int(int irq, void *dev_id, struct pt_regs *fp) {
193
194         volatile unsigned char x;
195
196         sched_timer_handler(irq,dev_id,fp);
197
198         x=*(volatile unsigned char *)(timer+3);
199         x=*(volatile unsigned char *)(timer+5);
200
201         return IRQ_HANDLED;
202 }
203
204 void dn_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) {
205
206         /* program timer 1 */
207         *(volatile unsigned char *)(timer+3)=0x01;
208         *(volatile unsigned char *)(timer+1)=0x40;
209         *(volatile unsigned char *)(timer+5)=0x09;
210         *(volatile unsigned char *)(timer+7)=0xc4;
211
212         /* enable IRQ of PIC B */
213         *(volatile unsigned char *)(pica+1)&=(~8);
214
215 #if 0
216         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
217         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
218 #endif
219
220         sched_timer_handler=timer_routine;
221         request_irq(0,dn_timer_int,0,NULL,NULL);
222
223 }
224
225 unsigned long dn_gettimeoffset(void) {
226
227         return 0xdeadbeef;
228
229 }
230
231 int dn_dummy_hwclk(int op, struct rtc_time *t) {
232
233
234   if(!op) { /* read */
235     t->tm_sec=rtc->second;
236     t->tm_min=rtc->minute;
237     t->tm_hour=rtc->hours;
238     t->tm_mday=rtc->day_of_month;
239     t->tm_wday=rtc->day_of_week;
240     t->tm_mon=rtc->month;
241     t->tm_year=rtc->year;
242   } else {
243     rtc->second=t->tm_sec;
244     rtc->minute=t->tm_min;
245     rtc->hours=t->tm_hour;
246     rtc->day_of_month=t->tm_mday;
247     if(t->tm_wday!=-1)
248       rtc->day_of_week=t->tm_wday;
249     rtc->month=t->tm_mon;
250     rtc->year=t->tm_year;
251   }
252
253   return 0;
254
255 }
256
257 int dn_dummy_set_clock_mmss(unsigned long nowtime) {
258
259   printk("set_clock_mmss\n");
260
261   return 0;
262
263 }
264
265 void dn_dummy_reset(void) {
266
267   dn_serial_print("The end !\n");
268
269   for(;;);
270
271 }
272
273 void dn_dummy_waitbut(void) {
274
275   dn_serial_print("waitbut\n");
276
277 }
278
279 static void dn_get_model(char *model)
280 {
281     strcpy(model, "Apollo ");
282     if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
283         strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
284 }
285
286 #ifdef CONFIG_HEARTBEAT
287 static int dn_cpuctrl=0xff00;
288
289 static void dn_heartbeat(int on) {
290
291         if(on) {
292                 dn_cpuctrl&=~0x100;
293                 cpuctrl=dn_cpuctrl;
294         }
295         else {
296                 dn_cpuctrl&=~0x100;
297                 dn_cpuctrl|=0x100;
298                 cpuctrl=dn_cpuctrl;
299         }
300 }
301 #endif
302