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-rw-r--r--arch/m68k/apollo/config.c305
1 files changed, 305 insertions, 0 deletions
diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c
new file mode 100644
index 000000000000..264929471253
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+++ b/arch/m68k/apollo/config.c
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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
20u_long sio01_physaddr;
21u_long sio23_physaddr;
22u_long rtc_physaddr;
23u_long pica_physaddr;
24u_long picb_physaddr;
25u_long cpuctrl_physaddr;
26u_long timer_physaddr;
27u_long apollo_model;
28
29extern void dn_sched_init(irqreturn_t (*handler)(int,void *,struct pt_regs *));
30extern void dn_init_IRQ(void);
31extern int dn_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id);
32extern void dn_free_irq(unsigned int irq, void *dev_id);
33extern void dn_enable_irq(unsigned int);
34extern void dn_disable_irq(unsigned int);
35extern int show_dn_interrupts(struct seq_file *, void *);
36extern unsigned long dn_gettimeoffset(void);
37extern int dn_dummy_hwclk(int, struct rtc_time *);
38extern int dn_dummy_set_clock_mmss(unsigned long);
39extern void dn_dummy_reset(void);
40extern void dn_dummy_waitbut(void);
41extern struct fb_info *dn_fb_init(long *);
42extern void dn_dummy_debug_init(void);
43extern void dn_dummy_video_setup(char *,int *);
44extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp);
45#ifdef CONFIG_HEARTBEAT
46static void dn_heartbeat(int on);
47#endif
48static irqreturn_t dn_timer_int(int irq,void *, struct pt_regs *);
49static irqreturn_t (*sched_timer_handler)(int, void *, struct pt_regs *)=NULL;
50static void dn_get_model(char *model);
51static 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
59int 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
76void 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
124int dn_serial_console_wait_key(struct console *co) {
125
126 while(!(sio01.srb_csrb & 1))
127 barrier();
128 return sio01.rhrb_thrb;
129}
130
131void 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
145void 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
159void 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_DUMMY_CONSOLE
180 conswitchp = &dummy_con;
181#endif
182#ifdef CONFIG_HEARTBEAT
183 mach_heartbeat = dn_heartbeat;
184#endif
185 mach_get_model = dn_get_model;
186
187 cpuctrl=0xaa00;
188
189 /* clear DMA translation table */
190 for(i=0;i<0x400;i++)
191 addr_xlat_map[i]=0;
192
193}
194
195irqreturn_t dn_timer_int(int irq, void *dev_id, struct pt_regs *fp) {
196
197 volatile unsigned char x;
198
199 sched_timer_handler(irq,dev_id,fp);
200
201 x=*(volatile unsigned char *)(timer+3);
202 x=*(volatile unsigned char *)(timer+5);
203
204 return IRQ_HANDLED;
205}
206
207void dn_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) {
208
209 /* program timer 1 */
210 *(volatile unsigned char *)(timer+3)=0x01;
211 *(volatile unsigned char *)(timer+1)=0x40;
212 *(volatile unsigned char *)(timer+5)=0x09;
213 *(volatile unsigned char *)(timer+7)=0xc4;
214
215 /* enable IRQ of PIC B */
216 *(volatile unsigned char *)(pica+1)&=(~8);
217
218#if 0
219 printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
220 printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
221#endif
222
223 sched_timer_handler=timer_routine;
224 request_irq(0,dn_timer_int,0,NULL,NULL);
225
226}
227
228unsigned long dn_gettimeoffset(void) {
229
230 return 0xdeadbeef;
231
232}
233
234int dn_dummy_hwclk(int op, struct rtc_time *t) {
235
236
237 if(!op) { /* read */
238 t->tm_sec=rtc->second;
239 t->tm_min=rtc->minute;
240 t->tm_hour=rtc->hours;
241 t->tm_mday=rtc->day_of_month;
242 t->tm_wday=rtc->day_of_week;
243 t->tm_mon=rtc->month;
244 t->tm_year=rtc->year;
245 } else {
246 rtc->second=t->tm_sec;
247 rtc->minute=t->tm_min;
248 rtc->hours=t->tm_hour;
249 rtc->day_of_month=t->tm_mday;
250 if(t->tm_wday!=-1)
251 rtc->day_of_week=t->tm_wday;
252 rtc->month=t->tm_mon;
253 rtc->year=t->tm_year;
254 }
255
256 return 0;
257
258}
259
260int dn_dummy_set_clock_mmss(unsigned long nowtime) {
261
262 printk("set_clock_mmss\n");
263
264 return 0;
265
266}
267
268void dn_dummy_reset(void) {
269
270 dn_serial_print("The end !\n");
271
272 for(;;);
273
274}
275
276void dn_dummy_waitbut(void) {
277
278 dn_serial_print("waitbut\n");
279
280}
281
282static void dn_get_model(char *model)
283{
284 strcpy(model, "Apollo ");
285 if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
286 strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
287}
288
289#ifdef CONFIG_HEARTBEAT
290static int dn_cpuctrl=0xff00;
291
292static void dn_heartbeat(int on) {
293
294 if(on) {
295 dn_cpuctrl&=~0x100;
296 cpuctrl=dn_cpuctrl;
297 }
298 else {
299 dn_cpuctrl&=~0x100;
300 dn_cpuctrl|=0x100;
301 cpuctrl=dn_cpuctrl;
302 }
303}
304#endif
305
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