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- Peter Anvin: more P4 configuration parsing
[davej-history.git] / arch / m68k / amiga / config.c
blob618d9a61830eebba23f24042fefa560c5093ea54
1 /*
2 * linux/arch/m68k/amiga/config.c
3 *
4 * Copyright (C) 1993 Hamish Macdonald
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive
8 * for more details.
9 */
10
11 /*
12 * Miscellaneous Amiga stuff
13 */
14
15 #include <linux/config.h>
16 #include <linux/types.h>
17 #include <linux/kernel.h>
18 #include <linux/mm.h>
19 #include <linux/kd.h>
20 #include <linux/tty.h>
21 #include <linux/console.h>
22 #include <linux/init.h>
23 #ifdef CONFIG_ZORRO
24 #include <linux/zorro.h>
25 #endif
26
27 #include <asm/bootinfo.h>
28 #include <asm/setup.h>
29 #include <asm/system.h>
30 #include <asm/pgtable.h>
31 #include <asm/amigahw.h>
32 #include <asm/amigaints.h>
33 #include <asm/irq.h>
34 #include <asm/keyboard.h>
35 #include <asm/machdep.h>
36 #include <asm/io.h>
37
38 unsigned long amiga_model;
39 unsigned long amiga_eclock;
40 unsigned long amiga_masterclock;
41 unsigned long amiga_colorclock;
42 unsigned long amiga_chipset;
43 unsigned char amiga_vblank;
44 unsigned char amiga_psfreq;
45 struct amiga_hw_present amiga_hw_present;
46
47 static const char s_a500[] __initdata = "A500";
48 static const char s_a500p[] __initdata = "A500+";
49 static const char s_a600[] __initdata = "A600";
50 static const char s_a1000[] __initdata = "A1000";
51 static const char s_a1200[] __initdata = "A1200";
52 static const char s_a2000[] __initdata = "A2000";
53 static const char s_a2500[] __initdata = "A2500";
54 static const char s_a3000[] __initdata = "A3000";
55 static const char s_a3000t[] __initdata = "A3000T";
56 static const char s_a3000p[] __initdata = "A3000+";
57 static const char s_a4000[] __initdata = "A4000";
58 static const char s_a4000t[] __initdata = "A4000T";
59 static const char s_cdtv[] __initdata = "CDTV";
60 static const char s_cd32[] __initdata = "CD32";
61 static const char s_draco[] __initdata = "Draco";
62 static const char *amiga_models[] __initdata = {
63 s_a500, s_a500p, s_a600, s_a1000, s_a1200, s_a2000, s_a2500, s_a3000,
64 s_a3000t, s_a3000p, s_a4000, s_a4000t, s_cdtv, s_cd32, s_draco,
65 };
66
67 static char amiga_model_name[13] = "Amiga ";
68
69 extern char m68k_debug_device[];
70
71 static void amiga_sched_init(void (*handler)(int, void *, struct pt_regs *));
72 /* amiga specific keyboard functions */
73 extern int amiga_keyb_init(void);
74 extern int amiga_kbdrate (struct kbd_repeat *);
75 extern int amiga_kbd_translate(unsigned char keycode, unsigned char *keycodep,
76 char raw_mode);
77 /* amiga specific irq functions */
78 extern void amiga_init_IRQ (void);
79 extern void (*amiga_default_handler[]) (int, void *, struct pt_regs *);
80 extern int amiga_request_irq (unsigned int irq,
81 void (*handler)(int, void *, struct pt_regs *),
82 unsigned long flags, const char *devname,
83 void *dev_id);
84 extern void amiga_free_irq (unsigned int irq, void *dev_id);
85 extern void amiga_enable_irq (unsigned int);
86 extern void amiga_disable_irq (unsigned int);
87 static void amiga_get_model(char *model);
88 static int amiga_get_hardware_list(char *buffer);
89 extern int amiga_get_irq_list (char *);
90 /* amiga specific timer functions */
91 static unsigned long amiga_gettimeoffset (void);
92 static void a3000_gettod (int *, int *, int *, int *, int *, int *);
93 static void a2000_gettod (int *, int *, int *, int *, int *, int *);
94 static int amiga_hwclk (int, struct hwclk_time *);
95 static int amiga_set_clock_mmss (unsigned long);
96 extern void amiga_mksound( unsigned int count, unsigned int ticks );
97 #ifdef CONFIG_AMIGA_FLOPPY
98 extern void amiga_floppy_setup(char *, int *);
99 #endif
100 static void amiga_reset (void);
101 static int amiga_wait_key (struct console *co);
102 extern void amiga_init_sound(void);
103 static void amiga_savekmsg_init(void);
104 static void amiga_mem_console_write(struct console *co, const char *b,
105 unsigned int count);
106 void amiga_serial_console_write(struct console *co, const char *s,
107 unsigned int count);
108 static void amiga_debug_init(void);
109 #ifdef CONFIG_HEARTBEAT
110 static void amiga_heartbeat(int on);
111 #endif
112
113 static struct console amiga_console_driver = {
114 name: "debug",
115 wait_key: amiga_wait_key,
116 flags: CON_PRINTBUFFER,
117 index: -1,
118 };
119
120 #ifdef CONFIG_MAGIC_SYSRQ
121 static char amiga_sysrq_xlate[128] =
122 "\0001234567890-=\\\000\000" /* 0x00 - 0x0f */
123 "qwertyuiop[]\000123" /* 0x10 - 0x1f */
124 "asdfghjkl;'\000\000456" /* 0x20 - 0x2f */
125 "\000zxcvbnm,./\000+789" /* 0x30 - 0x3f */
126 " \177\t\r\r\000\177\000\000\000-\000\000\000\000\000" /* 0x40 - 0x4f */
127 "\000\201\202\203\204\205\206\207\210\211()/*+\000" /* 0x50 - 0x5f */
128 "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" /* 0x60 - 0x6f */
129 "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"; /* 0x70 - 0x7f */
130 #endif
131
132 extern void (*kd_mksound)(unsigned int, unsigned int);
133
134
135 /*
136 * Motherboard Resources present in all Amiga models
137 */
138
139 static struct resource mb_resource[] = {
140 { "CIA B", 0x00bfd000, 0x00bfdfff },
141 { "CIA A", 0x00bfe000, 0x00bfefff },
142 { "Custom I/O", 0x00dff000, 0x00dfffff },
143 { "Kickstart ROM", 0x00f80000, 0x00ffffff }
144 };
145
146 static struct resource rtc_resource = {
147 NULL, 0x00dc0000, 0x00dcffff
148 };
149
150 static struct resource ram_resource[NUM_MEMINFO];
151
152
153 /*
154 * Parse an Amiga-specific record in the bootinfo
155 */
156
157 int amiga_parse_bootinfo(const struct bi_record *record)
158 {
159 int unknown = 0;
160 const unsigned long *data = record->data;
161
162 switch (record->tag) {
163 case BI_AMIGA_MODEL:
164 amiga_model = *data;
165 break;
166
167 case BI_AMIGA_ECLOCK:
168 amiga_eclock = *data;
169 break;
170
171 case BI_AMIGA_CHIPSET:
172 amiga_chipset = *data;
173 break;
174
175 case BI_AMIGA_CHIP_SIZE:
176 amiga_chip_size = *(const int *)data;
177 break;
178
179 case BI_AMIGA_VBLANK:
180 amiga_vblank = *(const unsigned char *)data;
181 break;
182
183 case BI_AMIGA_PSFREQ:
184 amiga_psfreq = *(const unsigned char *)data;
185 break;
186
187 case BI_AMIGA_AUTOCON:
188 #ifdef CONFIG_ZORRO
189 if (zorro_num_autocon < ZORRO_NUM_AUTO) {
190 const struct ConfigDev *cd = (struct ConfigDev *)data;
191 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++];
192 dev->rom = cd->cd_Rom;
193 dev->slotaddr = cd->cd_SlotAddr;
194 dev->slotsize = cd->cd_SlotSize;
195 dev->resource.start = (unsigned long)cd->cd_BoardAddr;
196 dev->resource.end = dev->resource.start+cd->cd_BoardSize-1;
197 } else
198 printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
199 #endif
200 break;
201
202 case BI_AMIGA_SERPER:
203 /* serial port period: ignored here */
204 break;
205
206 default:
207 unknown = 1;
208 }
209 return(unknown);
210 }
211
212 /*
213 * Identify builtin hardware
214 */
215
216 static void __init amiga_identify(void)
217 {
218 /* Fill in some default values, if necessary */
219 if (amiga_eclock == 0)
220 amiga_eclock = 709379;
221
222 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
223
224 printk("Amiga hardware found: ");
225 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
226 printk("[%s] ", amiga_models[amiga_model-AMI_500]);
227 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
228 }
229
230 switch(amiga_model) {
231 case AMI_UNKNOWN:
232 goto Generic;
233
234 case AMI_600:
235 case AMI_1200:
236 AMIGAHW_SET(A1200_IDE);
237 AMIGAHW_SET(PCMCIA);
238 case AMI_500:
239 case AMI_500PLUS:
240 case AMI_1000:
241 case AMI_2000:
242 case AMI_2500:
243 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
244 goto Generic;
245
246 case AMI_3000:
247 case AMI_3000T:
248 AMIGAHW_SET(AMBER_FF);
249 AMIGAHW_SET(MAGIC_REKICK);
250 /* fall through */
251 case AMI_3000PLUS:
252 AMIGAHW_SET(A3000_SCSI);
253 AMIGAHW_SET(A3000_CLK);
254 AMIGAHW_SET(ZORRO3);
255 goto Generic;
256
257 case AMI_4000T:
258 AMIGAHW_SET(A4000_SCSI);
259 /* fall through */
260 case AMI_4000:
261 AMIGAHW_SET(A4000_IDE);
262 AMIGAHW_SET(A3000_CLK);
263 AMIGAHW_SET(ZORRO3);
264 goto Generic;
265
266 case AMI_CDTV:
267 case AMI_CD32:
268 AMIGAHW_SET(CD_ROM);
269 AMIGAHW_SET(A2000_CLK); /* Is this correct? */
270 goto Generic;
271
272 Generic:
273 AMIGAHW_SET(AMI_VIDEO);
274 AMIGAHW_SET(AMI_BLITTER);
275 AMIGAHW_SET(AMI_AUDIO);
276 AMIGAHW_SET(AMI_FLOPPY);
277 AMIGAHW_SET(AMI_KEYBOARD);
278 AMIGAHW_SET(AMI_MOUSE);
279 AMIGAHW_SET(AMI_SERIAL);
280 AMIGAHW_SET(AMI_PARALLEL);
281 AMIGAHW_SET(CHIP_RAM);
282 AMIGAHW_SET(PAULA);
283
284 switch(amiga_chipset) {
285 case CS_OCS:
286 case CS_ECS:
287 case CS_AGA:
288 switch (custom.deniseid & 0xf) {
289 case 0x0c:
290 AMIGAHW_SET(DENISE_HR);
291 break;
292 case 0x08:
293 AMIGAHW_SET(LISA);
294 break;
295 }
296 break;
297 default:
298 AMIGAHW_SET(DENISE);
299 break;
300 }
301 switch ((custom.vposr>>8) & 0x7f) {
302 case 0x00:
303 AMIGAHW_SET(AGNUS_PAL);
304 break;
305 case 0x10:
306 AMIGAHW_SET(AGNUS_NTSC);
307 break;
308 case 0x20:
309 case 0x21:
310 AMIGAHW_SET(AGNUS_HR_PAL);
311 break;
312 case 0x30:
313 case 0x31:
314 AMIGAHW_SET(AGNUS_HR_NTSC);
315 break;
316 case 0x22:
317 case 0x23:
318 AMIGAHW_SET(ALICE_PAL);
319 break;
320 case 0x32:
321 case 0x33:
322 AMIGAHW_SET(ALICE_NTSC);
323 break;
324 }
325 AMIGAHW_SET(ZORRO);
326 break;
327
328 case AMI_DRACO:
329 panic("No support for Draco yet");
330
331 default:
332 panic("Unknown Amiga Model");
333 }
334
335 #define AMIGAHW_ANNOUNCE(name, str) \
336 if (AMIGAHW_PRESENT(name)) \
337 printk(str)
338
339 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
340 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
341 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
342 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
343 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
344 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
345 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
346 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
347 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
348 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
349 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
350 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
351 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
352 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
353 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
354 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
355 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
356 AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
357 AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
358 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
359 AMIGAHW_ANNOUNCE(LISA, "LISA ");
360 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
361 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
362 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
363 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
364 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
365 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
366 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
367 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
368 if (AMIGAHW_PRESENT(ZORRO))
369 printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
370 printk("\n");
371
372 #undef AMIGAHW_ANNOUNCE
373 }
374
375 /*
376 * Setup the Amiga configuration info
377 */
378
379 void __init config_amiga(void)
380 {
381 int i;
382
383 amiga_debug_init();
384 amiga_identify();
385
386 /* Yuk, we don't have PCI memory */
387 iomem_resource.name = "Memory";
388 for (i = 0; i < sizeof(mb_resource)/sizeof(mb_resource[0]); i++)
389 request_resource(&iomem_resource, &mb_resource[i]);
390
391 mach_sched_init = amiga_sched_init;
392 mach_keyb_init = amiga_keyb_init;
393 mach_kbdrate = amiga_kbdrate;
394 mach_kbd_translate = amiga_kbd_translate;
395 SYSRQ_KEY = 0xff;
396 mach_init_IRQ = amiga_init_IRQ;
397 mach_default_handler = &amiga_default_handler;
398 mach_request_irq = amiga_request_irq;
399 mach_free_irq = amiga_free_irq;
400 enable_irq = amiga_enable_irq;
401 disable_irq = amiga_disable_irq;
402 mach_get_model = amiga_get_model;
403 mach_get_hardware_list = amiga_get_hardware_list;
404 mach_get_irq_list = amiga_get_irq_list;
405 mach_gettimeoffset = amiga_gettimeoffset;
406 if (AMIGAHW_PRESENT(A3000_CLK)){
407 mach_gettod = a3000_gettod;
408 rtc_resource.name = "A3000 RTC";
409 request_resource(&iomem_resource, &rtc_resource);
410 }
411 else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */
412 mach_gettod = a2000_gettod;
413 rtc_resource.name = "A2000 RTC";
414 request_resource(&iomem_resource, &rtc_resource);
415 }
416
417 mach_max_dma_address = 0xffffffff; /*
418 * default MAX_DMA=0xffffffff
419 * on all machines. If we don't
420 * do so, the SCSI code will not
421 * be able to allocate any mem
422 * for transfers, unless we are
423 * dealing with a Z2 mem only
424 * system. /Jes
425 */
426
427 mach_hwclk = amiga_hwclk;
428 mach_set_clock_mmss = amiga_set_clock_mmss;
429 #ifdef CONFIG_AMIGA_FLOPPY
430 mach_floppy_setup = amiga_floppy_setup;
431 #endif
432 mach_reset = amiga_reset;
433 conswitchp = &dummy_con;
434 kd_mksound = amiga_mksound;
435 #ifdef CONFIG_MAGIC_SYSRQ
436 mach_sysrq_key = 0x5f; /* HELP */
437 mach_sysrq_shift_state = 0x03; /* SHIFT+ALTGR */
438 mach_sysrq_shift_mask = 0xff; /* all modifiers except CapsLock */
439 mach_sysrq_xlate = amiga_sysrq_xlate;
440 #endif
441 #ifdef CONFIG_HEARTBEAT
442 mach_heartbeat = amiga_heartbeat;
443 #endif
444
445 /* Fill in the clock values (based on the 700 kHz E-Clock) */
446 amiga_masterclock = 40*amiga_eclock; /* 28 MHz */
447 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
448
449 /* clear all DMA bits */
450 custom.dmacon = DMAF_ALL;
451 /* ensure that the DMA master bit is set */
452 custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
453
454 /* don't use Z2 RAM as system memory on Z3 capable machines */
455 if (AMIGAHW_PRESENT(ZORRO3)) {
456 int i, j;
457 u32 disabled_z2mem = 0;
458 for (i = 0; i < m68k_num_memory; i++)
459 if (m68k_memory[i].addr < 16*1024*1024) {
460 if (i == 0) {
461 /* don't cut off the branch we're sitting on */
462 printk("Warning: kernel runs in Zorro II memory\n");
463 continue;
464 }
465 disabled_z2mem += m68k_memory[i].size;
466 m68k_num_memory--;
467 for (j = i; j < m68k_num_memory; j++)
468 m68k_memory[j] = m68k_memory[j+1];
469 i--;
470 }
471 if (disabled_z2mem)
472 printk("%dK of Zorro II memory will not be used as system memory\n",
473 disabled_z2mem>>10);
474 }
475
476 /* request all RAM */
477 for (i = 0; i < m68k_num_memory; i++) {
478 ram_resource[i].name =
479 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
480 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
481 "16-bit Slow RAM";
482 ram_resource[i].start = m68k_memory[i].addr;
483 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
484 request_resource(&iomem_resource, &ram_resource[i]);
485 }
486
487 /* initialize chipram allocator */
488 amiga_chip_init ();
489
490 /* debugging using chipram */
491 if (!strcmp( m68k_debug_device, "mem" )){
492 if (!AMIGAHW_PRESENT(CHIP_RAM))
493 printk("Warning: no chipram present for debugging\n");
494 else {
495 amiga_savekmsg_init();
496 amiga_console_driver.write = amiga_mem_console_write;
497 register_console(&amiga_console_driver);
498 }
499 }
500
501 /* our beloved beeper */
502 if (AMIGAHW_PRESENT(AMI_AUDIO))
503 amiga_init_sound();
504
505 /*
506 * if it is an A3000, set the magic bit that forces
507 * a hard rekick
508 */
509 if (AMIGAHW_PRESENT(MAGIC_REKICK))
510 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
511 }
512
513 static unsigned short jiffy_ticks;
514
515 static void __init amiga_sched_init(void (*timer_routine)(int, void *,
516 struct pt_regs *))
517 {
518 static struct resource sched_res = { "timer" };
519 jiffy_ticks = (amiga_eclock+HZ/2)/HZ;
520
521 if (!request_mem_region(CIAB_PHYSADDR+0x400, 0x200, "timer"))
522 printk("Cannot allocate ciab.ta{lo,hi}\n");
523 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */
524 ciab.talo = jiffy_ticks % 256;
525 ciab.tahi = jiffy_ticks / 256;
526
527 /* install interrupt service routine for CIAB Timer A
528 *
529 * Please don't change this to use ciaa, as it interferes with the
530 * SCSI code. We'll have to take a look at this later
531 */
532 request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL);
533 /* start timer */
534 ciab.cra |= 0x11;
535 }
536
537 #define TICK_SIZE 10000
538
539 /* This is always executed with interrupts disabled. */
540 static unsigned long amiga_gettimeoffset (void)
541 {
542 unsigned short hi, lo, hi2;
543 unsigned long ticks, offset = 0;
544
545 /* read CIA B timer A current value */
546 hi = ciab.tahi;
547 lo = ciab.talo;
548 hi2 = ciab.tahi;
549
550 if (hi != hi2) {
551 lo = ciab.talo;
552 hi = hi2;
553 }
554
555 ticks = hi << 8 | lo;
556
557 if (ticks > jiffy_ticks / 2)
558 /* check for pending interrupt */
559 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
560 offset = 10000;
561
562 ticks = jiffy_ticks - ticks;
563 ticks = (10000 * ticks) / jiffy_ticks;
564
565 return ticks + offset;
566 }
567
568 static void a3000_gettod (int *yearp, int *monp, int *dayp,
569 int *hourp, int *minp, int *secp)
570 {
571 volatile struct tod3000 *tod = TOD_3000;
572
573 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
574
575 *secp = tod->second1 * 10 + tod->second2;
576 *minp = tod->minute1 * 10 + tod->minute2;
577 *hourp = tod->hour1 * 10 + tod->hour2;
578 *dayp = tod->day1 * 10 + tod->day2;
579 *monp = tod->month1 * 10 + tod->month2;
580 *yearp = tod->year1 * 10 + tod->year2;
581
582 tod->cntrl1 = TOD3000_CNTRL1_FREE;
583 }
584
585 static void a2000_gettod (int *yearp, int *monp, int *dayp,
586 int *hourp, int *minp, int *secp)
587 {
588 volatile struct tod2000 *tod = TOD_2000;
589
590 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
591
592 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
593 ;
594
595 *secp = tod->second1 * 10 + tod->second2;
596 *minp = tod->minute1 * 10 + tod->minute2;
597 *hourp = (tod->hour1 & 3) * 10 + tod->hour2;
598 *dayp = tod->day1 * 10 + tod->day2;
599 *monp = tod->month1 * 10 + tod->month2;
600 *yearp = tod->year1 * 10 + tod->year2;
601
602 if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){
603 if (!(tod->hour1 & TOD2000_HOUR1_PM) && *hourp == 12)
604 *hourp = 0;
605 else if ((tod->hour1 & TOD2000_HOUR1_PM) && *hourp != 12)
606 *hourp += 12;
607 }
608
609 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
610 }
611
612 static int amiga_hwclk(int op, struct hwclk_time *t)
613 {
614 if (AMIGAHW_PRESENT(A3000_CLK)) {
615 volatile struct tod3000 *tod = TOD_3000;
616
617 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
618
619 if (!op) { /* read */
620 t->sec = tod->second1 * 10 + tod->second2;
621 t->min = tod->minute1 * 10 + tod->minute2;
622 t->hour = tod->hour1 * 10 + tod->hour2;
623 t->day = tod->day1 * 10 + tod->day2;
624 t->wday = tod->weekday;
625 t->mon = tod->month1 * 10 + tod->month2 - 1;
626 t->year = tod->year1 * 10 + tod->year2;
627 } else {
628 tod->second1 = t->sec / 10;
629 tod->second2 = t->sec % 10;
630 tod->minute1 = t->min / 10;
631 tod->minute2 = t->min % 10;
632 tod->hour1 = t->hour / 10;
633 tod->hour2 = t->hour % 10;
634 tod->day1 = t->day / 10;
635 tod->day2 = t->day % 10;
636 if (t->wday != -1)
637 tod->weekday = t->wday;
638 tod->month1 = (t->mon + 1) / 10;
639 tod->month2 = (t->mon + 1) % 10;
640 tod->year1 = t->year / 10;
641 tod->year2 = t->year % 10;
642 }
643
644 tod->cntrl1 = TOD3000_CNTRL1_FREE;
645 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
646 volatile struct tod2000 *tod = TOD_2000;
647
648 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
649
650 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
651 ;
652
653 if (!op) { /* read */
654 t->sec = tod->second1 * 10 + tod->second2;
655 t->min = tod->minute1 * 10 + tod->minute2;
656 t->hour = (tod->hour1 & 3) * 10 + tod->hour2;
657 t->day = tod->day1 * 10 + tod->day2;
658 t->wday = tod->weekday;
659 t->mon = tod->month1 * 10 + tod->month2 - 1;
660 t->year = tod->year1 * 10 + tod->year2;
661
662 if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){
663 if (!(tod->hour1 & TOD2000_HOUR1_PM) && t->hour == 12)
664 t->hour = 0;
665 else if ((tod->hour1 & TOD2000_HOUR1_PM) && t->hour != 12)
666 t->hour += 12;
667 }
668 } else {
669 tod->second1 = t->sec / 10;
670 tod->second2 = t->sec % 10;
671 tod->minute1 = t->min / 10;
672 tod->minute2 = t->min % 10;
673 if (tod->cntrl3 & TOD2000_CNTRL3_24HMODE)
674 tod->hour1 = t->hour / 10;
675 else if (t->hour >= 12)
676 tod->hour1 = TOD2000_HOUR1_PM +
677 (t->hour - 12) / 10;
678 else
679 tod->hour1 = t->hour / 10;
680 tod->hour2 = t->hour % 10;
681 tod->day1 = t->day / 10;
682 tod->day2 = t->day % 10;
683 if (t->wday != -1)
684 tod->weekday = t->wday;
685 tod->month1 = (t->mon + 1) / 10;
686 tod->month2 = (t->mon + 1) % 10;
687 tod->year1 = t->year / 10;
688 tod->year2 = t->year % 10;
689 }
690
691 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
692 }
693
694 return 0;
695 }
696
697 static int amiga_set_clock_mmss (unsigned long nowtime)
698 {
699 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
700
701 if (AMIGAHW_PRESENT(A3000_CLK)) {
702 volatile struct tod3000 *tod = TOD_3000;
703
704 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
705
706 tod->second1 = real_seconds / 10;
707 tod->second2 = real_seconds % 10;
708 tod->minute1 = real_minutes / 10;
709 tod->minute2 = real_minutes % 10;
710
711 tod->cntrl1 = TOD3000_CNTRL1_FREE;
712 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
713 volatile struct tod2000 *tod = TOD_2000;
714
715 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
716
717 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
718 ;
719
720 tod->second1 = real_seconds / 10;
721 tod->second2 = real_seconds % 10;
722 tod->minute1 = real_minutes / 10;
723 tod->minute2 = real_minutes % 10;
724
725 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
726 }
727
728 return 0;
729 }
730
731 static int amiga_wait_key (struct console *co)
732 {
733 int i;
734
735 while (1) {
736 while (ciaa.pra & 0x40);
737
738 /* debounce */
739 for (i = 0; i < 1000; i++);
740
741 if (!(ciaa.pra & 0x40))
742 break;
743 }
744
745 /* wait for button up */
746 while (1) {
747 while (!(ciaa.pra & 0x40));
748
749 /* debounce */
750 for (i = 0; i < 1000; i++);
751
752 if (ciaa.pra & 0x40)
753 break;
754 }
755 return 0;
756 }
757
758 void dbprintf(const char *fmt , ...)
759 {
760 static char buf[1024];
761 va_list args;
762 extern void console_print (const char *str);
763 extern int vsprintf(char * buf, const char * fmt, va_list args);
764
765 va_start(args, fmt);
766 vsprintf(buf, fmt, args);
767 va_end(args);
768
769 console_print (buf);
770 }
771
772 static NORET_TYPE void amiga_reset( void )
773 ATTRIB_NORET;
774
775 static void amiga_reset (void)
776 {
777 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
778 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
779
780 cli();
781 if (CPU_IS_040_OR_060)
782 /* Setup transparent translation registers for mapping
783 * of 16 MB kernel segment before disabling translation
784 */
785 __asm__ __volatile__
786 ("movel %0,%/d0\n\t"
787 "andl #0xff000000,%/d0\n\t"
788 "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */
789 ".chip 68040\n\t"
790 "movec %%d0,%%itt0\n\t"
791 "movec %%d0,%%dtt0\n\t"
792 ".chip 68k\n\t"
793 "jmp %0@\n\t"
794 : /* no outputs */
795 : "a" (jmp_addr040));
796 else
797 /* for 680[23]0, just disable translation and jump to the physical
798 * address of the label
799 */
800 __asm__ __volatile__
801 ("pmove %/tc,%@\n\t"
802 "bclr #7,%@\n\t"
803 "pmove %@,%/tc\n\t"
804 "jmp %0@\n\t"
805 : /* no outputs */
806 : "a" (jmp_addr));
807 jmp_addr_label040:
808 /* disable translation on '040 now */
809 __asm__ __volatile__
810 ("moveq #0,%/d0\n\t"
811 ".chip 68040\n\t"
812 "movec %%d0,%%tc\n\t" /* disable MMU */
813 ".chip 68k\n\t"
814 : /* no outputs */
815 : /* no inputs */
816 : "d0");
817
818 jmp_addr_label:
819 /* pickup reset address from AmigaOS ROM, reset devices and jump
820 * to reset address
821 */
822 __asm__ __volatile__
823 ("movew #0x2700,%/sr\n\t"
824 "leal 0x01000000,%/a0\n\t"
825 "subl %/a0@(-0x14),%/a0\n\t"
826 "movel %/a0@(4),%/a0\n\t"
827 "subql #2,%/a0\n\t"
828 "bra 1f\n\t"
829 /* align on a longword boundary */
830 __ALIGN_STR "\n"
831 "1:\n\t"
832 "reset\n\t"
833 "jmp %/a0@" : /* Just that gcc scans it for % escapes */ );
834
835 for (;;);
836
837 }
838
839
840 /*
841 * Debugging
842 */
843
844 #define SAVEKMSG_MAXMEM 128*1024
845
846 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */
847 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */
848
849 struct savekmsg {
850 unsigned long magic1; /* SAVEKMSG_MAGIC1 */
851 unsigned long magic2; /* SAVEKMSG_MAGIC2 */
852 unsigned long magicptr; /* address of magic1 */
853 unsigned long size;
854 char data[0];
855 };
856
857 static struct savekmsg *savekmsg = NULL;
858
859 static void amiga_mem_console_write(struct console *co, const char *s,
860 unsigned int count)
861 {
862 if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
863 memcpy(savekmsg->data+savekmsg->size, s, count);
864 savekmsg->size += count;
865 }
866 }
867
868 static void amiga_savekmsg_init(void)
869 {
870 static struct resource debug_res = { "Debug" };
871
872 savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res);
873 savekmsg->magic1 = SAVEKMSG_MAGIC1;
874 savekmsg->magic2 = SAVEKMSG_MAGIC2;
875 savekmsg->magicptr = virt_to_phys(savekmsg);
876 savekmsg->size = 0;
877 }
878
879 static void amiga_serial_putc(char c)
880 {
881 custom.serdat = (unsigned char)c | 0x100;
882 while (!(custom.serdatr & 0x2000))
883 ;
884 }
885
886 void amiga_serial_console_write(struct console *co, const char *s,
887 unsigned int count)
888 {
889 while (count--) {
890 if (*s == '\n')
891 amiga_serial_putc('\r');
892 amiga_serial_putc(*s++);
893 }
894 }
895
896 #ifdef CONFIG_SERIAL_CONSOLE
897 void amiga_serial_puts(const char *s)
898 {
899 amiga_serial_console_write(NULL, s, strlen(s));
900 }
901
902 int amiga_serial_console_wait_key(struct console *co)
903 {
904 int ch;
905
906 while (!(custom.intreqr & IF_RBF))
907 barrier();
908 ch = custom.serdatr & 0xff;
909 /* clear the interrupt, so that another character can be read */
910 custom.intreq = IF_RBF;
911 return ch;
912 }
913
914 void amiga_serial_gets(struct console *co, char *s, int len)
915 {
916 int ch, cnt = 0;
917
918 while (1) {
919 ch = amiga_serial_console_wait_key(co);
920
921 /* Check for backspace. */
922 if (ch == 8 || ch == 127) {
923 if (cnt == 0) {
924 amiga_serial_putc('\007');
925 continue;
926 }
927 cnt--;
928 amiga_serial_puts("\010 \010");
929 continue;
930 }
931
932 /* Check for enter. */
933 if (ch == 10 || ch == 13)
934 break;
935
936 /* See if line is too long. */
937 if (cnt >= len + 1) {
938 amiga_serial_putc(7);
939 cnt--;
940 continue;
941 }
942
943 /* Store and echo character. */
944 s[cnt++] = ch;
945 amiga_serial_putc(ch);
946 }
947 /* Print enter. */
948 amiga_serial_puts("\r\n");
949 s[cnt] = 0;
950 }
951 #endif
952
953 static void __init amiga_debug_init(void)
954 {
955 if (!strcmp( m68k_debug_device, "ser" )) {
956 /* no initialization required (?) */
957 amiga_console_driver.write = amiga_serial_console_write;
958 register_console(&amiga_console_driver);
959 }
960 }
961
962 #ifdef CONFIG_HEARTBEAT
963 static void amiga_heartbeat(int on)
964 {
965 if (on)
966 ciaa.pra &= ~2;
967 else
968 ciaa.pra |= 2;
969 }
970 #endif
971
972 /*
973 * Amiga specific parts of /proc
974 */
975
976 static void amiga_get_model(char *model)
977 {
978 strcpy(model, amiga_model_name);
979 }
980
981
982 static int amiga_get_hardware_list(char *buffer)
983 {
984 int len = 0;
985
986 if (AMIGAHW_PRESENT(CHIP_RAM))
987 len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
988 len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
989 amiga_psfreq, amiga_eclock);
990 if (AMIGAHW_PRESENT(AMI_VIDEO)) {
991 char *type;
992 switch(amiga_chipset) {
993 case CS_OCS:
994 type = "OCS";
995 break;
996 case CS_ECS:
997 type = "ECS";
998 break;
999 case CS_AGA:
1000 type = "AGA";
1001 break;
1002 default:
1003 type = "Old or Unknown";
1004 break;
1005 }
1006 len += sprintf(buffer+len, "Graphics:\t%s\n", type);
1007 }
1008
1009 #define AMIGAHW_ANNOUNCE(name, str) \
1010 if (AMIGAHW_PRESENT(name)) \
1011 len += sprintf (buffer+len, "\t%s\n", str)
1012
1013 len += sprintf (buffer + len, "Detected hardware:\n");
1014
1015 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
1016 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
1017 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
1018 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
1019 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
1020 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
1021 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
1022 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
1023 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
1024 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
1025 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
1026 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
1027 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
1028 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
1029 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
1030 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
1031 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
1032 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
1033 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
1034 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
1035 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
1036 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
1037 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
1038 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
1039 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
1040 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
1041 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
1042 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
1043 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
1044 #ifdef CONFIG_ZORRO
1045 if (AMIGAHW_PRESENT(ZORRO))
1046 len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion "
1047 "Device%s\n",
1048 AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
1049 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
1050 #endif
1051
1052 #undef AMIGAHW_ANNOUNCE
1053
1054 return(len);
1055 }
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