File: /usr/src/linux/arch/m68k/amiga/config.c
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/tty.h>
20 #include <linux/console.h>
21 #include <linux/init.h>
22 #ifdef CONFIG_ZORRO
23 #include <linux/zorro.h>
24 #endif
25
26 #include <asm/bootinfo.h>
27 #include <asm/setup.h>
28 #include <asm/system.h>
29 #include <asm/pgtable.h>
30 #include <asm/amigahw.h>
31 #include <asm/amigaints.h>
32 #include <asm/irq.h>
33 #include <asm/rtc.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 char s_a500[] __initdata = "A500";
48 static char s_a500p[] __initdata = "A500+";
49 static char s_a600[] __initdata = "A600";
50 static char s_a1000[] __initdata = "A1000";
51 static char s_a1200[] __initdata = "A1200";
52 static char s_a2000[] __initdata = "A2000";
53 static char s_a2500[] __initdata = "A2500";
54 static char s_a3000[] __initdata = "A3000";
55 static char s_a3000t[] __initdata = "A3000T";
56 static char s_a3000p[] __initdata = "A3000+";
57 static char s_a4000[] __initdata = "A4000";
58 static char s_a4000t[] __initdata = "A4000T";
59 static char s_cdtv[] __initdata = "CDTV";
60 static char s_cd32[] __initdata = "CD32";
61 static char s_draco[] __initdata = "Draco";
62 static 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 {
140 struct resource _ciab, _ciaa, _custom, _kickstart;
141 } mb_resources = {
142 _ciab: { "CIA B", 0x00bfd000, 0x00bfdfff },
143 _ciaa: { "CIA A", 0x00bfe000, 0x00bfefff },
144 _custom: { "Custom I/O", 0x00dff000, 0x00dfffff },
145 _kickstart: { "Kickstart ROM", 0x00f80000, 0x00ffffff }
146 };
147
148 static struct resource rtc_resource = {
149 NULL, 0x00dc0000, 0x00dcffff
150 };
151
152 static struct resource ram_resource[NUM_MEMINFO];
153
154
155 /*
156 * Parse an Amiga-specific record in the bootinfo
157 */
158
159 int amiga_parse_bootinfo(const struct bi_record *record)
160 {
161 int unknown = 0;
162 const unsigned long *data = record->data;
163
164 switch (record->tag) {
165 case BI_AMIGA_MODEL:
166 amiga_model = *data;
167 break;
168
169 case BI_AMIGA_ECLOCK:
170 amiga_eclock = *data;
171 break;
172
173 case BI_AMIGA_CHIPSET:
174 amiga_chipset = *data;
175 break;
176
177 case BI_AMIGA_CHIP_SIZE:
178 amiga_chip_size = *(const int *)data;
179 break;
180
181 case BI_AMIGA_VBLANK:
182 amiga_vblank = *(const unsigned char *)data;
183 break;
184
185 case BI_AMIGA_PSFREQ:
186 amiga_psfreq = *(const unsigned char *)data;
187 break;
188
189 case BI_AMIGA_AUTOCON:
190 #ifdef CONFIG_ZORRO
191 if (zorro_num_autocon < ZORRO_NUM_AUTO) {
192 const struct ConfigDev *cd = (struct ConfigDev *)data;
193 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++];
194 dev->rom = cd->cd_Rom;
195 dev->slotaddr = cd->cd_SlotAddr;
196 dev->slotsize = cd->cd_SlotSize;
197 dev->resource.start = (unsigned long)cd->cd_BoardAddr;
198 dev->resource.end = dev->resource.start+cd->cd_BoardSize-1;
199 } else
200 printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
201 #endif /* CONFIG_ZORRO */
202 break;
203
204 case BI_AMIGA_SERPER:
205 /* serial port period: ignored here */
206 break;
207
208 default:
209 unknown = 1;
210 }
211 return(unknown);
212 }
213
214 /*
215 * Identify builtin hardware
216 */
217
218 static void __init amiga_identify(void)
219 {
220 /* Fill in some default values, if necessary */
221 if (amiga_eclock == 0)
222 amiga_eclock = 709379;
223
224 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
225
226 printk("Amiga hardware found: ");
227 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
228 printk("[%s] ", amiga_models[amiga_model-AMI_500]);
229 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
230 }
231
232 switch(amiga_model) {
233 case AMI_UNKNOWN:
234 goto Generic;
235
236 case AMI_600:
237 case AMI_1200:
238 AMIGAHW_SET(A1200_IDE);
239 AMIGAHW_SET(PCMCIA);
240 case AMI_500:
241 case AMI_500PLUS:
242 case AMI_1000:
243 case AMI_2000:
244 case AMI_2500:
245 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
246 goto Generic;
247
248 case AMI_3000:
249 case AMI_3000T:
250 AMIGAHW_SET(AMBER_FF);
251 AMIGAHW_SET(MAGIC_REKICK);
252 /* fall through */
253 case AMI_3000PLUS:
254 AMIGAHW_SET(A3000_SCSI);
255 AMIGAHW_SET(A3000_CLK);
256 AMIGAHW_SET(ZORRO3);
257 goto Generic;
258
259 case AMI_4000T:
260 AMIGAHW_SET(A4000_SCSI);
261 /* fall through */
262 case AMI_4000:
263 AMIGAHW_SET(A4000_IDE);
264 AMIGAHW_SET(A3000_CLK);
265 AMIGAHW_SET(ZORRO3);
266 goto Generic;
267
268 case AMI_CDTV:
269 case AMI_CD32:
270 AMIGAHW_SET(CD_ROM);
271 AMIGAHW_SET(A2000_CLK); /* Is this correct? */
272 goto Generic;
273
274 Generic:
275 AMIGAHW_SET(AMI_VIDEO);
276 AMIGAHW_SET(AMI_BLITTER);
277 AMIGAHW_SET(AMI_AUDIO);
278 AMIGAHW_SET(AMI_FLOPPY);
279 AMIGAHW_SET(AMI_KEYBOARD);
280 AMIGAHW_SET(AMI_MOUSE);
281 AMIGAHW_SET(AMI_SERIAL);
282 AMIGAHW_SET(AMI_PARALLEL);
283 AMIGAHW_SET(CHIP_RAM);
284 AMIGAHW_SET(PAULA);
285
286 switch(amiga_chipset) {
287 case CS_OCS:
288 case CS_ECS:
289 case CS_AGA:
290 switch (custom.deniseid & 0xf) {
291 case 0x0c:
292 AMIGAHW_SET(DENISE_HR);
293 break;
294 case 0x08:
295 AMIGAHW_SET(LISA);
296 break;
297 }
298 break;
299 default:
300 AMIGAHW_SET(DENISE);
301 break;
302 }
303 switch ((custom.vposr>>8) & 0x7f) {
304 case 0x00:
305 AMIGAHW_SET(AGNUS_PAL);
306 break;
307 case 0x10:
308 AMIGAHW_SET(AGNUS_NTSC);
309 break;
310 case 0x20:
311 case 0x21:
312 AMIGAHW_SET(AGNUS_HR_PAL);
313 break;
314 case 0x30:
315 case 0x31:
316 AMIGAHW_SET(AGNUS_HR_NTSC);
317 break;
318 case 0x22:
319 case 0x23:
320 AMIGAHW_SET(ALICE_PAL);
321 break;
322 case 0x32:
323 case 0x33:
324 AMIGAHW_SET(ALICE_NTSC);
325 break;
326 }
327 AMIGAHW_SET(ZORRO);
328 break;
329
330 case AMI_DRACO:
331 panic("No support for Draco yet");
332
333 default:
334 panic("Unknown Amiga Model");
335 }
336
337 #define AMIGAHW_ANNOUNCE(name, str) \
338 if (AMIGAHW_PRESENT(name)) \
339 printk(str)
340
341 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
342 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
343 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
344 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
345 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
346 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
347 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
348 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
349 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
350 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
351 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
352 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
353 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
354 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
355 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
356 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
357 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
358 AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
359 AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
360 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
361 AMIGAHW_ANNOUNCE(LISA, "LISA ");
362 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
363 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
364 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
365 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
366 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
367 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
368 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
369 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
370 if (AMIGAHW_PRESENT(ZORRO))
371 printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
372 printk("\n");
373
374 #undef AMIGAHW_ANNOUNCE
375 }
376
377 /*
378 * Setup the Amiga configuration info
379 */
380
381 void __init config_amiga(void)
382 {
383 int i;
384
385 amiga_debug_init();
386 amiga_identify();
387
388 /* Yuk, we don't have PCI memory */
389 iomem_resource.name = "Memory";
390 for (i = 0; i < 4; i++)
391 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
392
393 mach_sched_init = amiga_sched_init;
394 mach_keyb_init = amiga_keyb_init;
395 mach_kbdrate = amiga_kbdrate;
396 mach_kbd_translate = amiga_kbd_translate;
397 SYSRQ_KEY = 0xff;
398 mach_init_IRQ = amiga_init_IRQ;
399 mach_default_handler = &amiga_default_handler;
400 mach_request_irq = amiga_request_irq;
401 mach_free_irq = amiga_free_irq;
402 enable_irq = amiga_enable_irq;
403 disable_irq = amiga_disable_irq;
404 mach_get_model = amiga_get_model;
405 mach_get_hardware_list = amiga_get_hardware_list;
406 mach_get_irq_list = amiga_get_irq_list;
407 mach_gettimeoffset = amiga_gettimeoffset;
408 if (AMIGAHW_PRESENT(A3000_CLK)){
409 mach_gettod = a3000_gettod;
410 rtc_resource.name = "A3000 RTC";
411 request_resource(&iomem_resource, &rtc_resource);
412 }
413 else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */
414 mach_gettod = a2000_gettod;
415 rtc_resource.name = "A2000 RTC";
416 request_resource(&iomem_resource, &rtc_resource);
417 }
418
419 mach_max_dma_address = 0xffffffff; /*
420 * default MAX_DMA=0xffffffff
421 * on all machines. If we don't
422 * do so, the SCSI code will not
423 * be able to allocate any mem
424 * for transfers, unless we are
425 * dealing with a Z2 mem only
426 * system. /Jes
427 */
428
429 mach_hwclk = amiga_hwclk;
430 mach_set_clock_mmss = amiga_set_clock_mmss;
431 #ifdef CONFIG_AMIGA_FLOPPY
432 mach_floppy_setup = amiga_floppy_setup;
433 #endif
434 mach_reset = amiga_reset;
435 #ifdef CONFIG_DUMMY_CONSOLE
436 conswitchp = &dummy_con;
437 #endif
438 kd_mksound = amiga_mksound;
439 #ifdef CONFIG_MAGIC_SYSRQ
440 mach_sysrq_key = 0x5f; /* HELP */
441 mach_sysrq_shift_state = 0x03; /* SHIFT+ALTGR */
442 mach_sysrq_shift_mask = 0xff; /* all modifiers except CapsLock */
443 mach_sysrq_xlate = amiga_sysrq_xlate;
444 #endif
445 #ifdef CONFIG_HEARTBEAT
446 mach_heartbeat = amiga_heartbeat;
447 #endif
448
449 /* Fill in the clock values (based on the 700 kHz E-Clock) */
450 amiga_masterclock = 40*amiga_eclock; /* 28 MHz */
451 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
452
453 /* clear all DMA bits */
454 custom.dmacon = DMAF_ALL;
455 /* ensure that the DMA master bit is set */
456 custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
457
458 /* don't use Z2 RAM as system memory on Z3 capable machines */
459 if (AMIGAHW_PRESENT(ZORRO3)) {
460 int i, j;
461 u32 disabled_z2mem = 0;
462 for (i = 0; i < m68k_num_memory; i++)
463 if (m68k_memory[i].addr < 16*1024*1024) {
464 if (i == 0) {
465 /* don't cut off the branch we're sitting on */
466 printk("Warning: kernel runs in Zorro II memory\n");
467 continue;
468 }
469 disabled_z2mem += m68k_memory[i].size;
470 m68k_num_memory--;
471 for (j = i; j < m68k_num_memory; j++)
472 m68k_memory[j] = m68k_memory[j+1];
473 i--;
474 }
475 if (disabled_z2mem)
476 printk("%dK of Zorro II memory will not be used as system memory\n",
477 disabled_z2mem>>10);
478 }
479
480 /* request all RAM */
481 for (i = 0; i < m68k_num_memory; i++) {
482 ram_resource[i].name =
483 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
484 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
485 "16-bit Slow RAM";
486 ram_resource[i].start = m68k_memory[i].addr;
487 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
488 request_resource(&iomem_resource, &ram_resource[i]);
489 }
490
491 /* initialize chipram allocator */
492 amiga_chip_init ();
493
494 /* debugging using chipram */
495 if (!strcmp( m68k_debug_device, "mem" )){
496 if (!AMIGAHW_PRESENT(CHIP_RAM))
497 printk("Warning: no chipram present for debugging\n");
498 else {
499 amiga_savekmsg_init();
500 amiga_console_driver.write = amiga_mem_console_write;
501 register_console(&amiga_console_driver);
502 }
503 }
504
505 /* our beloved beeper */
506 if (AMIGAHW_PRESENT(AMI_AUDIO))
507 amiga_init_sound();
508
509 /*
510 * if it is an A3000, set the magic bit that forces
511 * a hard rekick
512 */
513 if (AMIGAHW_PRESENT(MAGIC_REKICK))
514 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
515 }
516
517 static unsigned short jiffy_ticks;
518
519 static void __init amiga_sched_init(void (*timer_routine)(int, void *,
520 struct pt_regs *))
521 {
522 static struct resource sched_res = {
523 "timer", 0x00bfd400, 0x00bfd5ff,
524 };
525 jiffy_ticks = (amiga_eclock+HZ/2)/HZ;
526
527 if (request_resource(&mb_resources._ciab, &sched_res))
528 printk("Cannot allocate ciab.ta{lo,hi}\n");
529 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */
530 ciab.talo = jiffy_ticks % 256;
531 ciab.tahi = jiffy_ticks / 256;
532
533 /* install interrupt service routine for CIAB Timer A
534 *
535 * Please don't change this to use ciaa, as it interferes with the
536 * SCSI code. We'll have to take a look at this later
537 */
538 request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL);
539 /* start timer */
540 ciab.cra |= 0x11;
541 }
542
543 #define TICK_SIZE 10000
544
545 /* This is always executed with interrupts disabled. */
546 static unsigned long amiga_gettimeoffset (void)
547 {
548 unsigned short hi, lo, hi2;
549 unsigned long ticks, offset = 0;
550
551 /* read CIA B timer A current value */
552 hi = ciab.tahi;
553 lo = ciab.talo;
554 hi2 = ciab.tahi;
555
556 if (hi != hi2) {
557 lo = ciab.talo;
558 hi = hi2;
559 }
560
561 ticks = hi << 8 | lo;
562
563 if (ticks > jiffy_ticks / 2)
564 /* check for pending interrupt */
565 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
566 offset = 10000;
567
568 ticks = jiffy_ticks - ticks;
569 ticks = (10000 * ticks) / jiffy_ticks;
570
571 return ticks + offset;
572 }
573
574 static void a3000_gettod (int *yearp, int *monp, int *dayp,
575 int *hourp, int *minp, int *secp)
576 {
577 volatile struct tod3000 *tod = TOD_3000;
578
579 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
580
581 *secp = tod->second1 * 10 + tod->second2;
582 *minp = tod->minute1 * 10 + tod->minute2;
583 *hourp = tod->hour1 * 10 + tod->hour2;
584 *dayp = tod->day1 * 10 + tod->day2;
585 *monp = tod->month1 * 10 + tod->month2;
586 *yearp = tod->year1 * 10 + tod->year2;
587
588 tod->cntrl1 = TOD3000_CNTRL1_FREE;
589 }
590
591 static void a2000_gettod (int *yearp, int *monp, int *dayp,
592 int *hourp, int *minp, int *secp)
593 {
594 volatile struct tod2000 *tod = TOD_2000;
595
596 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
597
598 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
599 ;
600
601 *secp = tod->second1 * 10 + tod->second2;
602 *minp = tod->minute1 * 10 + tod->minute2;
603 *hourp = (tod->hour1 & 3) * 10 + tod->hour2;
604 *dayp = tod->day1 * 10 + tod->day2;
605 *monp = tod->month1 * 10 + tod->month2;
606 *yearp = tod->year1 * 10 + tod->year2;
607
608 if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){
609 if (!(tod->hour1 & TOD2000_HOUR1_PM) && *hourp == 12)
610 *hourp = 0;
611 else if ((tod->hour1 & TOD2000_HOUR1_PM) && *hourp != 12)
612 *hourp += 12;
613 }
614
615 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
616 }
617
618 static int amiga_hwclk(int op, struct hwclk_time *t)
619 {
620 if (AMIGAHW_PRESENT(A3000_CLK)) {
621 volatile struct tod3000 *tod = TOD_3000;
622
623 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
624
625 if (!op) { /* read */
626 t->sec = tod->second1 * 10 + tod->second2;
627 t->min = tod->minute1 * 10 + tod->minute2;
628 t->hour = tod->hour1 * 10 + tod->hour2;
629 t->day = tod->day1 * 10 + tod->day2;
630 t->wday = tod->weekday;
631 t->mon = tod->month1 * 10 + tod->month2 - 1;
632 t->year = tod->year1 * 10 + tod->year2;
633 if (t->year <= 69)
634 t->year += 100;
635 } else {
636 tod->second1 = t->sec / 10;
637 tod->second2 = t->sec % 10;
638 tod->minute1 = t->min / 10;
639 tod->minute2 = t->min % 10;
640 tod->hour1 = t->hour / 10;
641 tod->hour2 = t->hour % 10;
642 tod->day1 = t->day / 10;
643 tod->day2 = t->day % 10;
644 if (t->wday != -1)
645 tod->weekday = t->wday;
646 tod->month1 = (t->mon + 1) / 10;
647 tod->month2 = (t->mon + 1) % 10;
648 if (t->year >= 100)
649 t->year -= 100;
650 tod->year1 = t->year / 10;
651 tod->year2 = t->year % 10;
652 }
653
654 tod->cntrl1 = TOD3000_CNTRL1_FREE;
655 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
656 volatile struct tod2000 *tod = TOD_2000;
657
658 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
659
660 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
661 ;
662
663 if (!op) { /* read */
664 t->sec = tod->second1 * 10 + tod->second2;
665 t->min = tod->minute1 * 10 + tod->minute2;
666 t->hour = (tod->hour1 & 3) * 10 + tod->hour2;
667 t->day = tod->day1 * 10 + tod->day2;
668 t->wday = tod->weekday;
669 t->mon = tod->month1 * 10 + tod->month2 - 1;
670 t->year = tod->year1 * 10 + tod->year2;
671 if (t->year <= 69)
672 t->year += 100;
673
674 if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){
675 if (!(tod->hour1 & TOD2000_HOUR1_PM) && t->hour == 12)
676 t->hour = 0;
677 else if ((tod->hour1 & TOD2000_HOUR1_PM) && t->hour != 12)
678 t->hour += 12;
679 }
680 } else {
681 tod->second1 = t->sec / 10;
682 tod->second2 = t->sec % 10;
683 tod->minute1 = t->min / 10;
684 tod->minute2 = t->min % 10;
685 if (tod->cntrl3 & TOD2000_CNTRL3_24HMODE)
686 tod->hour1 = t->hour / 10;
687 else if (t->hour >= 12)
688 tod->hour1 = TOD2000_HOUR1_PM +
689 (t->hour - 12) / 10;
690 else
691 tod->hour1 = t->hour / 10;
692 tod->hour2 = t->hour % 10;
693 tod->day1 = t->day / 10;
694 tod->day2 = t->day % 10;
695 if (t->wday != -1)
696 tod->weekday = t->wday;
697 tod->month1 = (t->mon + 1) / 10;
698 tod->month2 = (t->mon + 1) % 10;
699 if (t->year >= 100)
700 t->year -= 100;
701 tod->year1 = t->year / 10;
702 tod->year2 = t->year % 10;
703 }
704
705 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
706 }
707
708 return 0;
709 }
710
711 static int amiga_set_clock_mmss (unsigned long nowtime)
712 {
713 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
714
715 if (AMIGAHW_PRESENT(A3000_CLK)) {
716 volatile struct tod3000 *tod = TOD_3000;
717
718 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
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 = TOD3000_CNTRL1_FREE;
726 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
727 volatile struct tod2000 *tod = TOD_2000;
728
729 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
730
731 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
732 ;
733
734 tod->second1 = real_seconds / 10;
735 tod->second2 = real_seconds % 10;
736 tod->minute1 = real_minutes / 10;
737 tod->minute2 = real_minutes % 10;
738
739 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
740 }
741
742 return 0;
743 }
744
745 static int amiga_wait_key (struct console *co)
746 {
747 int i;
748
749 while (1) {
750 while (ciaa.pra & 0x40);
751
752 /* debounce */
753 for (i = 0; i < 1000; i++);
754
755 if (!(ciaa.pra & 0x40))
756 break;
757 }
758
759 /* wait for button up */
760 while (1) {
761 while (!(ciaa.pra & 0x40));
762
763 /* debounce */
764 for (i = 0; i < 1000; i++);
765
766 if (ciaa.pra & 0x40)
767 break;
768 }
769 return 0;
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 /* CONFIG_ZORRO */
1051
1052 #undef AMIGAHW_ANNOUNCE
1053
1054 return(len);
1055 }
1056