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1da177e4 LT |
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 | ||
2850bc27 | 28 | extern void dn_sched_init(irqreturn_t (*handler)(int,void *)); |
1da177e4 | 29 | extern void dn_init_IRQ(void); |
1da177e4 LT |
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 | extern void dn_dummy_waitbut(void); | |
35 | extern struct fb_info *dn_fb_init(long *); | |
36 | extern void dn_dummy_debug_init(void); | |
1da177e4 LT |
37 | extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp); |
38 | #ifdef CONFIG_HEARTBEAT | |
39 | static void dn_heartbeat(int on); | |
40 | #endif | |
2850bc27 | 41 | static irqreturn_t dn_timer_int(int irq,void *); |
1da177e4 LT |
42 | static void dn_get_model(char *model); |
43 | static const char *apollo_models[] = { | |
44 | [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)", | |
45 | [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)", | |
46 | [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)", | |
47 | [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)", | |
48 | [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)" | |
49 | }; | |
50 | ||
51 | int apollo_parse_bootinfo(const struct bi_record *record) { | |
52 | ||
53 | int unknown = 0; | |
54 | const unsigned long *data = record->data; | |
55 | ||
56 | switch(record->tag) { | |
57 | case BI_APOLLO_MODEL: | |
58 | apollo_model=*data; | |
59 | break; | |
60 | ||
61 | default: | |
62 | unknown=1; | |
63 | } | |
64 | ||
65 | return unknown; | |
66 | } | |
67 | ||
68 | void dn_setup_model(void) { | |
69 | ||
70 | ||
71 | printk("Apollo hardware found: "); | |
72 | printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]); | |
73 | ||
74 | switch(apollo_model) { | |
75 | case APOLLO_UNKNOWN: | |
76 | panic("Unknown apollo model"); | |
77 | break; | |
78 | case APOLLO_DN3000: | |
79 | case APOLLO_DN3010: | |
80 | sio01_physaddr=SAU8_SIO01_PHYSADDR; | |
81 | rtc_physaddr=SAU8_RTC_PHYSADDR; | |
82 | pica_physaddr=SAU8_PICA; | |
83 | picb_physaddr=SAU8_PICB; | |
84 | cpuctrl_physaddr=SAU8_CPUCTRL; | |
85 | timer_physaddr=SAU8_TIMER; | |
86 | break; | |
87 | case APOLLO_DN4000: | |
88 | sio01_physaddr=SAU7_SIO01_PHYSADDR; | |
89 | sio23_physaddr=SAU7_SIO23_PHYSADDR; | |
90 | rtc_physaddr=SAU7_RTC_PHYSADDR; | |
91 | pica_physaddr=SAU7_PICA; | |
92 | picb_physaddr=SAU7_PICB; | |
93 | cpuctrl_physaddr=SAU7_CPUCTRL; | |
94 | timer_physaddr=SAU7_TIMER; | |
95 | break; | |
96 | case APOLLO_DN4500: | |
97 | panic("Apollo model not yet supported"); | |
98 | break; | |
99 | case APOLLO_DN3500: | |
100 | sio01_physaddr=SAU7_SIO01_PHYSADDR; | |
101 | sio23_physaddr=SAU7_SIO23_PHYSADDR; | |
102 | rtc_physaddr=SAU7_RTC_PHYSADDR; | |
103 | pica_physaddr=SAU7_PICA; | |
104 | picb_physaddr=SAU7_PICB; | |
105 | cpuctrl_physaddr=SAU7_CPUCTRL; | |
106 | timer_physaddr=SAU7_TIMER; | |
107 | break; | |
108 | default: | |
109 | panic("Undefined apollo model"); | |
110 | break; | |
111 | } | |
112 | ||
113 | ||
114 | } | |
115 | ||
116 | int dn_serial_console_wait_key(struct console *co) { | |
117 | ||
118 | while(!(sio01.srb_csrb & 1)) | |
119 | barrier(); | |
120 | return sio01.rhrb_thrb; | |
121 | } | |
122 | ||
123 | void dn_serial_console_write (struct console *co, const char *str,unsigned int count) | |
124 | { | |
125 | while(count--) { | |
126 | if (*str == '\n') { | |
127 | sio01.rhrb_thrb = (unsigned char)'\r'; | |
128 | while (!(sio01.srb_csrb & 0x4)) | |
129 | ; | |
130 | } | |
131 | sio01.rhrb_thrb = (unsigned char)*str++; | |
132 | while (!(sio01.srb_csrb & 0x4)) | |
133 | ; | |
134 | } | |
135 | } | |
136 | ||
137 | void dn_serial_print (const char *str) | |
138 | { | |
139 | while (*str) { | |
140 | if (*str == '\n') { | |
141 | sio01.rhrb_thrb = (unsigned char)'\r'; | |
142 | while (!(sio01.srb_csrb & 0x4)) | |
143 | ; | |
144 | } | |
145 | sio01.rhrb_thrb = (unsigned char)*str++; | |
146 | while (!(sio01.srb_csrb & 0x4)) | |
147 | ; | |
148 | } | |
149 | } | |
150 | ||
151 | void config_apollo(void) { | |
152 | ||
153 | int i; | |
154 | ||
155 | dn_setup_model(); | |
156 | ||
157 | mach_sched_init=dn_sched_init; /* */ | |
158 | mach_init_IRQ=dn_init_IRQ; | |
1da177e4 LT |
159 | mach_gettimeoffset = dn_gettimeoffset; |
160 | mach_max_dma_address = 0xffffffff; | |
161 | mach_hwclk = dn_dummy_hwclk; /* */ | |
162 | mach_set_clock_mmss = dn_dummy_set_clock_mmss; /* */ | |
1da177e4 | 163 | mach_reset = dn_dummy_reset; /* */ |
1da177e4 LT |
164 | #ifdef CONFIG_HEARTBEAT |
165 | mach_heartbeat = dn_heartbeat; | |
166 | #endif | |
167 | mach_get_model = dn_get_model; | |
168 | ||
169 | cpuctrl=0xaa00; | |
170 | ||
171 | /* clear DMA translation table */ | |
172 | for(i=0;i<0x400;i++) | |
173 | addr_xlat_map[i]=0; | |
174 | ||
175 | } | |
176 | ||
2850bc27 | 177 | irqreturn_t dn_timer_int(int irq, void *dev_id) |
0aa78106 | 178 | { |
2850bc27 | 179 | irqreturn_t (*timer_handler)(int, void *) = dev_id; |
1da177e4 LT |
180 | |
181 | volatile unsigned char x; | |
182 | ||
2850bc27 | 183 | timer_handler(irq, dev_id); |
1da177e4 LT |
184 | |
185 | x=*(volatile unsigned char *)(timer+3); | |
186 | x=*(volatile unsigned char *)(timer+5); | |
187 | ||
188 | return IRQ_HANDLED; | |
189 | } | |
190 | ||
2850bc27 AV |
191 | void dn_sched_init(irqreturn_t (*timer_routine)(int, void *)) |
192 | { | |
1da177e4 LT |
193 | /* program timer 1 */ |
194 | *(volatile unsigned char *)(timer+3)=0x01; | |
195 | *(volatile unsigned char *)(timer+1)=0x40; | |
196 | *(volatile unsigned char *)(timer+5)=0x09; | |
197 | *(volatile unsigned char *)(timer+7)=0xc4; | |
198 | ||
199 | /* enable IRQ of PIC B */ | |
200 | *(volatile unsigned char *)(pica+1)&=(~8); | |
201 | ||
202 | #if 0 | |
203 | printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3)); | |
204 | printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3)); | |
205 | #endif | |
206 | ||
0aa78106 | 207 | request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine); |
1da177e4 LT |
208 | } |
209 | ||
210 | unsigned long dn_gettimeoffset(void) { | |
211 | ||
212 | return 0xdeadbeef; | |
213 | ||
214 | } | |
215 | ||
216 | int dn_dummy_hwclk(int op, struct rtc_time *t) { | |
217 | ||
218 | ||
219 | if(!op) { /* read */ | |
220 | t->tm_sec=rtc->second; | |
221 | t->tm_min=rtc->minute; | |
222 | t->tm_hour=rtc->hours; | |
223 | t->tm_mday=rtc->day_of_month; | |
224 | t->tm_wday=rtc->day_of_week; | |
225 | t->tm_mon=rtc->month; | |
226 | t->tm_year=rtc->year; | |
227 | } else { | |
228 | rtc->second=t->tm_sec; | |
229 | rtc->minute=t->tm_min; | |
230 | rtc->hours=t->tm_hour; | |
231 | rtc->day_of_month=t->tm_mday; | |
232 | if(t->tm_wday!=-1) | |
233 | rtc->day_of_week=t->tm_wday; | |
234 | rtc->month=t->tm_mon; | |
235 | rtc->year=t->tm_year; | |
236 | } | |
237 | ||
238 | return 0; | |
239 | ||
240 | } | |
241 | ||
242 | int dn_dummy_set_clock_mmss(unsigned long nowtime) { | |
243 | ||
244 | printk("set_clock_mmss\n"); | |
245 | ||
246 | return 0; | |
247 | ||
248 | } | |
249 | ||
250 | void dn_dummy_reset(void) { | |
251 | ||
252 | dn_serial_print("The end !\n"); | |
253 | ||
254 | for(;;); | |
255 | ||
256 | } | |
257 | ||
258 | void dn_dummy_waitbut(void) { | |
259 | ||
260 | dn_serial_print("waitbut\n"); | |
261 | ||
262 | } | |
263 | ||
264 | static void dn_get_model(char *model) | |
265 | { | |
266 | strcpy(model, "Apollo "); | |
267 | if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500) | |
268 | strcat(model, apollo_models[apollo_model - APOLLO_DN3000]); | |
269 | } | |
270 | ||
271 | #ifdef CONFIG_HEARTBEAT | |
272 | static int dn_cpuctrl=0xff00; | |
273 | ||
274 | static void dn_heartbeat(int on) { | |
275 | ||
276 | if(on) { | |
277 | dn_cpuctrl&=~0x100; | |
278 | cpuctrl=dn_cpuctrl; | |
279 | } | |
280 | else { | |
281 | dn_cpuctrl&=~0x100; | |
282 | dn_cpuctrl|=0x100; | |
283 | cpuctrl=dn_cpuctrl; | |
284 | } | |
285 | } | |
286 | #endif | |
287 |