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1// SPDX-License-Identifier: GPL-2.0
2#include <linux/init.h>
3#include <linux/types.h>
4#include <linux/kernel.h>
5#include <linux/mm.h>
6#include <linux/tty.h>
7#include <linux/console.h>
8#include <linux/rtc.h>
9#include <linux/vt_kern.h>
10#include <linux/interrupt.h>
11
12#include <asm/setup.h>
13#include <asm/bootinfo.h>
14#include <asm/bootinfo-apollo.h>
15#include <asm/byteorder.h>
16#include <asm/pgtable.h>
17#include <asm/apollohw.h>
18#include <asm/irq.h>
19#include <asm/machdep.h>
20
21u_long sio01_physaddr;
22u_long sio23_physaddr;
23u_long rtc_physaddr;
24u_long pica_physaddr;
25u_long picb_physaddr;
26u_long cpuctrl_physaddr;
27u_long timer_physaddr;
28u_long apollo_model;
29
30extern void dn_sched_init(irq_handler_t handler);
31extern void dn_init_IRQ(void);
32extern int dn_dummy_hwclk(int, struct rtc_time *);
33extern void dn_dummy_reset(void);
34#ifdef CONFIG_HEARTBEAT
35static void dn_heartbeat(int on);
36#endif
37static irqreturn_t dn_timer_int(int irq,void *);
38static void dn_get_model(char *model);
39static 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
47int __init apollo_parse_bootinfo(const struct bi_record *record)
48{
49 int unknown = 0;
50 const void *data = record->data;
51
52 switch (be16_to_cpu(record->tag)) {
53 case BI_APOLLO_MODEL:
54 apollo_model = be32_to_cpup(data);
55 break;
56
57 default:
58 unknown=1;
59 }
60
61 return unknown;
62}
63
64static void __init dn_setup_model(void)
65{
66 pr_info("Apollo hardware found: [%s]\n",
67 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
111int dn_serial_console_wait_key(struct console *co) {
112
113 while(!(sio01.srb_csrb & 1))
114 barrier();
115 return sio01.rhrb_thrb;
116}
117
118void 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
132void 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
146void __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_max_dma_address = 0xffffffff;
155 mach_hwclk = dn_dummy_hwclk; /* */
156 mach_reset = dn_dummy_reset; /* */
157#ifdef CONFIG_HEARTBEAT
158 mach_heartbeat = dn_heartbeat;
159#endif
160 mach_get_model = dn_get_model;
161
162 cpuctrl=0xaa00;
163
164 /* clear DMA translation table */
165 for(i=0;i<0x400;i++)
166 addr_xlat_map[i]=0;
167
168}
169
170irqreturn_t dn_timer_int(int irq, void *dev_id)
171{
172 irq_handler_t timer_handler = dev_id;
173
174 volatile unsigned char x;
175
176 timer_handler(irq, dev_id);
177
178 x = *(volatile unsigned char *)(apollo_timer + 3);
179 x = *(volatile unsigned char *)(apollo_timer + 5);
180
181 return IRQ_HANDLED;
182}
183
184void dn_sched_init(irq_handler_t timer_routine)
185{
186 /* program timer 1 */
187 *(volatile unsigned char *)(apollo_timer + 3) = 0x01;
188 *(volatile unsigned char *)(apollo_timer + 1) = 0x40;
189 *(volatile unsigned char *)(apollo_timer + 5) = 0x09;
190 *(volatile unsigned char *)(apollo_timer + 7) = 0xc4;
191
192 /* enable IRQ of PIC B */
193 *(volatile unsigned char *)(pica+1)&=(~8);
194
195#if 0
196 pr_info("*(0x10803) %02x\n",
197 *(volatile unsigned char *)(apollo_timer + 0x3));
198 pr_info("*(0x10803) %02x\n",
199 *(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
206int dn_dummy_hwclk(int op, struct rtc_time *t) {
207
208
209 if(!op) { /* read */
210 t->tm_sec=rtc->second;
211 t->tm_min=rtc->minute;
212 t->tm_hour=rtc->hours;
213 t->tm_mday=rtc->day_of_month;
214 t->tm_wday=rtc->day_of_week;
215 t->tm_mon = rtc->month - 1;
216 t->tm_year=rtc->year;
217 if (t->tm_year < 70)
218 t->tm_year += 100;
219 } else {
220 rtc->second=t->tm_sec;
221 rtc->minute=t->tm_min;
222 rtc->hours=t->tm_hour;
223 rtc->day_of_month=t->tm_mday;
224 if(t->tm_wday!=-1)
225 rtc->day_of_week=t->tm_wday;
226 rtc->month = t->tm_mon + 1;
227 rtc->year = t->tm_year % 100;
228 }
229
230 return 0;
231
232}
233
234void dn_dummy_reset(void) {
235
236 dn_serial_print("The end !\n");
237
238 for(;;);
239
240}
241
242void dn_dummy_waitbut(void) {
243
244 dn_serial_print("waitbut\n");
245
246}
247
248static void dn_get_model(char *model)
249{
250 strcpy(model, "Apollo ");
251 if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
252 strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
253}
254
255#ifdef CONFIG_HEARTBEAT
256static int dn_cpuctrl=0xff00;
257
258static void dn_heartbeat(int on) {
259
260 if(on) {
261 dn_cpuctrl&=~0x100;
262 cpuctrl=dn_cpuctrl;
263 }
264 else {
265 dn_cpuctrl&=~0x100;
266 dn_cpuctrl|=0x100;
267 cpuctrl=dn_cpuctrl;
268 }
269}
270#endif
271
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
19u_long sio01_physaddr;
20u_long sio23_physaddr;
21u_long rtc_physaddr;
22u_long pica_physaddr;
23u_long picb_physaddr;
24u_long cpuctrl_physaddr;
25u_long timer_physaddr;
26u_long apollo_model;
27
28extern void dn_sched_init(irq_handler_t handler);
29extern void dn_init_IRQ(void);
30extern unsigned long dn_gettimeoffset(void);
31extern int dn_dummy_hwclk(int, struct rtc_time *);
32extern int dn_dummy_set_clock_mmss(unsigned long);
33extern void dn_dummy_reset(void);
34#ifdef CONFIG_HEARTBEAT
35static void dn_heartbeat(int on);
36#endif
37static irqreturn_t dn_timer_int(int irq,void *);
38static void dn_get_model(char *model);
39static 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
47int 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
64void 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
112int dn_serial_console_wait_key(struct console *co) {
113
114 while(!(sio01.srb_csrb & 1))
115 barrier();
116 return sio01.rhrb_thrb;
117}
118
119void 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
133void 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
147void __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
173irqreturn_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
187void 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 if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine))
204 pr_err("Couldn't register timer interrupt\n");
205}
206
207unsigned long dn_gettimeoffset(void) {
208
209 return 0xdeadbeef;
210
211}
212
213int dn_dummy_hwclk(int op, struct rtc_time *t) {
214
215
216 if(!op) { /* read */
217 t->tm_sec=rtc->second;
218 t->tm_min=rtc->minute;
219 t->tm_hour=rtc->hours;
220 t->tm_mday=rtc->day_of_month;
221 t->tm_wday=rtc->day_of_week;
222 t->tm_mon=rtc->month;
223 t->tm_year=rtc->year;
224 } else {
225 rtc->second=t->tm_sec;
226 rtc->minute=t->tm_min;
227 rtc->hours=t->tm_hour;
228 rtc->day_of_month=t->tm_mday;
229 if(t->tm_wday!=-1)
230 rtc->day_of_week=t->tm_wday;
231 rtc->month=t->tm_mon;
232 rtc->year=t->tm_year;
233 }
234
235 return 0;
236
237}
238
239int dn_dummy_set_clock_mmss(unsigned long nowtime) {
240
241 printk("set_clock_mmss\n");
242
243 return 0;
244
245}
246
247void dn_dummy_reset(void) {
248
249 dn_serial_print("The end !\n");
250
251 for(;;);
252
253}
254
255void dn_dummy_waitbut(void) {
256
257 dn_serial_print("waitbut\n");
258
259}
260
261static void dn_get_model(char *model)
262{
263 strcpy(model, "Apollo ");
264 if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
265 strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
266}
267
268#ifdef CONFIG_HEARTBEAT
269static int dn_cpuctrl=0xff00;
270
271static void dn_heartbeat(int on) {
272
273 if(on) {
274 dn_cpuctrl&=~0x100;
275 cpuctrl=dn_cpuctrl;
276 }
277 else {
278 dn_cpuctrl&=~0x100;
279 dn_cpuctrl|=0x100;
280 cpuctrl=dn_cpuctrl;
281 }
282}
283#endif
284