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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> | |
1da177e4 LT |
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 | ||
40220c1a | 27 | extern void dn_sched_init(irq_handler_t handler); |
1da177e4 | 28 | extern void dn_init_IRQ(void); |
1da177e4 LT |
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); | |
1da177e4 LT |
33 | #ifdef CONFIG_HEARTBEAT |
34 | static void dn_heartbeat(int on); | |
35 | #endif | |
2850bc27 | 36 | static irqreturn_t dn_timer_int(int irq,void *); |
1da177e4 LT |
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 | ||
66a3f820 AV |
146 | void __init config_apollo(void) |
147 | { | |
1da177e4 LT |
148 | int i; |
149 | ||
150 | dn_setup_model(); | |
151 | ||
152 | mach_sched_init=dn_sched_init; /* */ | |
153 | mach_init_IRQ=dn_init_IRQ; | |
1da177e4 LT |
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; /* */ | |
1da177e4 | 158 | mach_reset = dn_dummy_reset; /* */ |
1da177e4 LT |
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 | ||
2850bc27 | 172 | irqreturn_t dn_timer_int(int irq, void *dev_id) |
0aa78106 | 173 | { |
40220c1a | 174 | irq_handler_t timer_handler = dev_id; |
1da177e4 LT |
175 | |
176 | volatile unsigned char x; | |
177 | ||
2850bc27 | 178 | timer_handler(irq, dev_id); |
1da177e4 | 179 | |
1525e06e GU |
180 | x = *(volatile unsigned char *)(apollo_timer + 3); |
181 | x = *(volatile unsigned char *)(apollo_timer + 5); | |
1da177e4 LT |
182 | |
183 | return IRQ_HANDLED; | |
184 | } | |
185 | ||
40220c1a | 186 | void dn_sched_init(irq_handler_t timer_routine) |
2850bc27 | 187 | { |
1da177e4 | 188 | /* program timer 1 */ |
1525e06e GU |
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; | |
1da177e4 LT |
193 | |
194 | /* enable IRQ of PIC B */ | |
195 | *(volatile unsigned char *)(pica+1)&=(~8); | |
196 | ||
197 | #if 0 | |
1525e06e GU |
198 | printk("*(0x10803) %02x\n",*(volatile unsigned char *)(apollo_timer + 0x3)); |
199 | printk("*(0x10803) %02x\n",*(volatile unsigned char *)(apollo_timer + 0x3)); | |
1da177e4 LT |
200 | #endif |
201 | ||
84430653 GU |
202 | if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine)) |
203 | pr_err("Couldn't register timer interrupt\n"); | |
1da177e4 LT |
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 |