m68k/apollo: Rename "timer" to "apollo_timer"
[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/pgtable.h>
13 #include <asm/apollohw.h>
14 #include <asm/irq.h>
15 #include <asm/rtc.h>
16 #include <asm/machdep.h>
17
18 u_long sio01_physaddr;
19 u_long sio23_physaddr;
20 u_long rtc_physaddr;
21 u_long pica_physaddr;
22 u_long picb_physaddr;
23 u_long cpuctrl_physaddr;
24 u_long timer_physaddr;
25 u_long apollo_model;
26
27 extern void dn_sched_init(irq_handler_t handler);
28 extern void dn_init_IRQ(void);
29 extern unsigned long dn_gettimeoffset(void);
30 extern int dn_dummy_hwclk(int, struct rtc_time *);
31 extern int dn_dummy_set_clock_mmss(unsigned long);
32 extern void dn_dummy_reset(void);
33 #ifdef CONFIG_HEARTBEAT
34 static void dn_heartbeat(int on);
35 #endif
36 static irqreturn_t dn_timer_int(int irq,void *);
37 static void dn_get_model(char *model);
38 static 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
46 int apollo_parse_bootinfo(const struct bi_record *record) {
47
48         int unknown = 0;
49         const unsigned long *data = record->data;
50
51         switch(record->tag) {
52                 case BI_APOLLO_MODEL:
53                         apollo_model=*data;
54                         break;
55
56                 default:
57                          unknown=1;
58         }
59
60         return unknown;
61 }
62
63 void dn_setup_model(void) {
64
65
66         printk("Apollo hardware found: ");
67         printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]);
68
69         switch(apollo_model) {
70                 case APOLLO_UNKNOWN:
71                         panic("Unknown apollo model");
72                         break;
73                 case APOLLO_DN3000:
74                 case APOLLO_DN3010:
75                         sio01_physaddr=SAU8_SIO01_PHYSADDR;
76                         rtc_physaddr=SAU8_RTC_PHYSADDR;
77                         pica_physaddr=SAU8_PICA;
78                         picb_physaddr=SAU8_PICB;
79                         cpuctrl_physaddr=SAU8_CPUCTRL;
80                         timer_physaddr=SAU8_TIMER;
81                         break;
82                 case APOLLO_DN4000:
83                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
84                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
85                         rtc_physaddr=SAU7_RTC_PHYSADDR;
86                         pica_physaddr=SAU7_PICA;
87                         picb_physaddr=SAU7_PICB;
88                         cpuctrl_physaddr=SAU7_CPUCTRL;
89                         timer_physaddr=SAU7_TIMER;
90                         break;
91                 case APOLLO_DN4500:
92                         panic("Apollo model not yet supported");
93                         break;
94                 case APOLLO_DN3500:
95                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
96                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
97                         rtc_physaddr=SAU7_RTC_PHYSADDR;
98                         pica_physaddr=SAU7_PICA;
99                         picb_physaddr=SAU7_PICB;
100                         cpuctrl_physaddr=SAU7_CPUCTRL;
101                         timer_physaddr=SAU7_TIMER;
102                         break;
103                 default:
104                         panic("Undefined apollo model");
105                         break;
106         }
107
108
109 }
110
111 int dn_serial_console_wait_key(struct console *co) {
112
113         while(!(sio01.srb_csrb & 1))
114                 barrier();
115         return sio01.rhrb_thrb;
116 }
117
118 void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
119 {
120    while(count--) {
121         if (*str == '\n') {
122         sio01.rhrb_thrb = (unsigned char)'\r';
123         while (!(sio01.srb_csrb & 0x4))
124                 ;
125         }
126     sio01.rhrb_thrb = (unsigned char)*str++;
127     while (!(sio01.srb_csrb & 0x4))
128             ;
129   }
130 }
131
132 void dn_serial_print (const char *str)
133 {
134     while (*str) {
135         if (*str == '\n') {
136             sio01.rhrb_thrb = (unsigned char)'\r';
137             while (!(sio01.srb_csrb & 0x4))
138                 ;
139         }
140         sio01.rhrb_thrb = (unsigned char)*str++;
141         while (!(sio01.srb_csrb & 0x4))
142             ;
143     }
144 }
145
146 void __init config_apollo(void)
147 {
148         int i;
149
150         dn_setup_model();
151
152         mach_sched_init=dn_sched_init; /* */
153         mach_init_IRQ=dn_init_IRQ;
154         mach_gettimeoffset   = dn_gettimeoffset;
155         mach_max_dma_address = 0xffffffff;
156         mach_hwclk           = dn_dummy_hwclk; /* */
157         mach_set_clock_mmss  = dn_dummy_set_clock_mmss; /* */
158         mach_reset           = dn_dummy_reset;  /* */
159 #ifdef CONFIG_HEARTBEAT
160         mach_heartbeat = dn_heartbeat;
161 #endif
162         mach_get_model       = dn_get_model;
163
164         cpuctrl=0xaa00;
165
166         /* clear DMA translation table */
167         for(i=0;i<0x400;i++)
168                 addr_xlat_map[i]=0;
169
170 }
171
172 irqreturn_t dn_timer_int(int irq, void *dev_id)
173 {
174         irq_handler_t timer_handler = dev_id;
175
176         volatile unsigned char x;
177
178         timer_handler(irq, dev_id);
179
180         x = *(volatile unsigned char *)(apollo_timer + 3);
181         x = *(volatile unsigned char *)(apollo_timer + 5);
182
183         return IRQ_HANDLED;
184 }
185
186 void dn_sched_init(irq_handler_t timer_routine)
187 {
188         /* program timer 1 */
189         *(volatile unsigned char *)(apollo_timer + 3) = 0x01;
190         *(volatile unsigned char *)(apollo_timer + 1) = 0x40;
191         *(volatile unsigned char *)(apollo_timer + 5) = 0x09;
192         *(volatile unsigned char *)(apollo_timer + 7) = 0xc4;
193
194         /* enable IRQ of PIC B */
195         *(volatile unsigned char *)(pica+1)&=(~8);
196
197 #if 0
198         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(apollo_timer + 0x3));
199         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(apollo_timer + 0x3));
200 #endif
201
202         if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine))
203                 pr_err("Couldn't register timer interrupt\n");
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