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Commit | Line | Data |
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1da177e4 LT |
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 | ||
1da177e4 LT |
15 | #include <linux/types.h> |
16 | #include <linux/kernel.h> | |
17 | #include <linux/mm.h> | |
813dcf7a | 18 | #include <linux/seq_file.h> |
1da177e4 LT |
19 | #include <linux/tty.h> |
20 | #include <linux/console.h> | |
21 | #include <linux/rtc.h> | |
22 | #include <linux/init.h> | |
23 | #include <linux/vt_kern.h> | |
24 | #include <linux/delay.h> | |
25 | #include <linux/interrupt.h> | |
1da177e4 | 26 | #include <linux/zorro.h> |
8b169fa2 | 27 | #include <linux/module.h> |
39d2d99d | 28 | #include <linux/keyboard.h> |
1da177e4 LT |
29 | |
30 | #include <asm/bootinfo.h> | |
4c3c522b | 31 | #include <asm/bootinfo-amiga.h> |
bd9ba8f4 | 32 | #include <asm/byteorder.h> |
1da177e4 | 33 | #include <asm/setup.h> |
1da177e4 LT |
34 | #include <asm/pgtable.h> |
35 | #include <asm/amigahw.h> | |
36 | #include <asm/amigaints.h> | |
37 | #include <asm/irq.h> | |
38 | #include <asm/rtc.h> | |
39 | #include <asm/machdep.h> | |
40 | #include <asm/io.h> | |
41 | ||
0795dbcc | 42 | static unsigned long amiga_model; |
8b169fa2 | 43 | |
1da177e4 | 44 | unsigned long amiga_eclock; |
8b169fa2 AB |
45 | EXPORT_SYMBOL(amiga_eclock); |
46 | ||
1da177e4 | 47 | unsigned long amiga_colorclock; |
8b169fa2 AB |
48 | EXPORT_SYMBOL(amiga_colorclock); |
49 | ||
1da177e4 | 50 | unsigned long amiga_chipset; |
8b169fa2 AB |
51 | EXPORT_SYMBOL(amiga_chipset); |
52 | ||
1da177e4 | 53 | unsigned char amiga_vblank; |
8468afc0 AB |
54 | EXPORT_SYMBOL(amiga_vblank); |
55 | ||
0795dbcc | 56 | static unsigned char amiga_psfreq; |
8b169fa2 | 57 | |
1da177e4 | 58 | struct amiga_hw_present amiga_hw_present; |
8b169fa2 | 59 | EXPORT_SYMBOL(amiga_hw_present); |
1da177e4 LT |
60 | |
61 | static char s_a500[] __initdata = "A500"; | |
62 | static char s_a500p[] __initdata = "A500+"; | |
63 | static char s_a600[] __initdata = "A600"; | |
64 | static char s_a1000[] __initdata = "A1000"; | |
65 | static char s_a1200[] __initdata = "A1200"; | |
66 | static char s_a2000[] __initdata = "A2000"; | |
67 | static char s_a2500[] __initdata = "A2500"; | |
68 | static char s_a3000[] __initdata = "A3000"; | |
69 | static char s_a3000t[] __initdata = "A3000T"; | |
70 | static char s_a3000p[] __initdata = "A3000+"; | |
71 | static char s_a4000[] __initdata = "A4000"; | |
72 | static char s_a4000t[] __initdata = "A4000T"; | |
73 | static char s_cdtv[] __initdata = "CDTV"; | |
74 | static char s_cd32[] __initdata = "CD32"; | |
75 | static char s_draco[] __initdata = "Draco"; | |
76 | static char *amiga_models[] __initdata = { | |
6ff5801a RZ |
77 | [AMI_500-AMI_500] = s_a500, |
78 | [AMI_500PLUS-AMI_500] = s_a500p, | |
79 | [AMI_600-AMI_500] = s_a600, | |
80 | [AMI_1000-AMI_500] = s_a1000, | |
81 | [AMI_1200-AMI_500] = s_a1200, | |
82 | [AMI_2000-AMI_500] = s_a2000, | |
83 | [AMI_2500-AMI_500] = s_a2500, | |
84 | [AMI_3000-AMI_500] = s_a3000, | |
85 | [AMI_3000T-AMI_500] = s_a3000t, | |
86 | [AMI_3000PLUS-AMI_500] = s_a3000p, | |
87 | [AMI_4000-AMI_500] = s_a4000, | |
88 | [AMI_4000T-AMI_500] = s_a4000t, | |
89 | [AMI_CDTV-AMI_500] = s_cdtv, | |
90 | [AMI_CD32-AMI_500] = s_cd32, | |
91 | [AMI_DRACO-AMI_500] = s_draco, | |
1da177e4 LT |
92 | }; |
93 | ||
94 | static char amiga_model_name[13] = "Amiga "; | |
95 | ||
40220c1a | 96 | static void amiga_sched_init(irq_handler_t handler); |
1da177e4 | 97 | static void amiga_get_model(char *model); |
813dcf7a | 98 | static void amiga_get_hardware_list(struct seq_file *m); |
1da177e4 | 99 | /* amiga specific timer functions */ |
c8d5ba18 | 100 | static u32 amiga_gettimeoffset(void); |
6ff5801a RZ |
101 | extern void amiga_mksound(unsigned int count, unsigned int ticks); |
102 | static void amiga_reset(void); | |
1da177e4 | 103 | extern void amiga_init_sound(void); |
1da177e4 LT |
104 | static void amiga_mem_console_write(struct console *co, const char *b, |
105 | unsigned int count); | |
1da177e4 LT |
106 | #ifdef CONFIG_HEARTBEAT |
107 | static void amiga_heartbeat(int on); | |
108 | #endif | |
109 | ||
110 | static struct console amiga_console_driver = { | |
6ff5801a RZ |
111 | .name = "debug", |
112 | .flags = CON_PRINTBUFFER, | |
113 | .index = -1, | |
1da177e4 LT |
114 | }; |
115 | ||
116 | ||
117 | /* | |
118 | * Motherboard Resources present in all Amiga models | |
119 | */ | |
120 | ||
121 | static struct { | |
6ff5801a | 122 | struct resource _ciab, _ciaa, _custom, _kickstart; |
1da177e4 | 123 | } mb_resources = { |
6ff5801a RZ |
124 | ._ciab = { |
125 | .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff | |
126 | }, | |
127 | ._ciaa = { | |
128 | .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff | |
129 | }, | |
130 | ._custom = { | |
131 | .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff | |
132 | }, | |
133 | ._kickstart = { | |
134 | .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff | |
135 | } | |
1da177e4 LT |
136 | }; |
137 | ||
1da177e4 LT |
138 | static struct resource ram_resource[NUM_MEMINFO]; |
139 | ||
140 | ||
141 | /* | |
142 | * Parse an Amiga-specific record in the bootinfo | |
143 | */ | |
144 | ||
a4df02a2 | 145 | int __init amiga_parse_bootinfo(const struct bi_record *record) |
1da177e4 | 146 | { |
6ff5801a | 147 | int unknown = 0; |
abe48101 | 148 | const void *data = record->data; |
1da177e4 | 149 | |
abe48101 | 150 | switch (be16_to_cpu(record->tag)) { |
1da177e4 | 151 | case BI_AMIGA_MODEL: |
abe48101 | 152 | amiga_model = be32_to_cpup(data); |
6ff5801a | 153 | break; |
1da177e4 LT |
154 | |
155 | case BI_AMIGA_ECLOCK: | |
abe48101 | 156 | amiga_eclock = be32_to_cpup(data); |
6ff5801a | 157 | break; |
1da177e4 LT |
158 | |
159 | case BI_AMIGA_CHIPSET: | |
abe48101 | 160 | amiga_chipset = be32_to_cpup(data); |
6ff5801a | 161 | break; |
1da177e4 LT |
162 | |
163 | case BI_AMIGA_CHIP_SIZE: | |
abe48101 | 164 | amiga_chip_size = be32_to_cpup(data); |
6ff5801a | 165 | break; |
1da177e4 LT |
166 | |
167 | case BI_AMIGA_VBLANK: | |
abe48101 | 168 | amiga_vblank = *(const __u8 *)data; |
6ff5801a | 169 | break; |
1da177e4 LT |
170 | |
171 | case BI_AMIGA_PSFREQ: | |
abe48101 | 172 | amiga_psfreq = *(const __u8 *)data; |
6ff5801a | 173 | break; |
1da177e4 LT |
174 | |
175 | case BI_AMIGA_AUTOCON: | |
176 | #ifdef CONFIG_ZORRO | |
6ff5801a | 177 | if (zorro_num_autocon < ZORRO_NUM_AUTO) { |
abe48101 | 178 | const struct ConfigDev *cd = data; |
c293738e | 179 | struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; |
6ff5801a | 180 | dev->rom = cd->cd_Rom; |
bd9ba8f4 GU |
181 | dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr); |
182 | dev->slotsize = be16_to_cpu(cd->cd_SlotSize); | |
183 | dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr); | |
184 | dev->boardsize = be32_to_cpu(cd->cd_BoardSize); | |
6ff5801a | 185 | } else |
f296401b | 186 | pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); |
1da177e4 | 187 | #endif /* CONFIG_ZORRO */ |
6ff5801a | 188 | break; |
1da177e4 LT |
189 | |
190 | case BI_AMIGA_SERPER: | |
6ff5801a RZ |
191 | /* serial port period: ignored here */ |
192 | break; | |
1da177e4 LT |
193 | |
194 | default: | |
6ff5801a RZ |
195 | unknown = 1; |
196 | } | |
197 | return unknown; | |
1da177e4 LT |
198 | } |
199 | ||
200 | /* | |
201 | * Identify builtin hardware | |
202 | */ | |
203 | ||
204 | static void __init amiga_identify(void) | |
205 | { | |
6ff5801a RZ |
206 | /* Fill in some default values, if necessary */ |
207 | if (amiga_eclock == 0) | |
208 | amiga_eclock = 709379; | |
1da177e4 | 209 | |
6ff5801a RZ |
210 | memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); |
211 | ||
f296401b | 212 | pr_info("Amiga hardware found: "); |
6ff5801a | 213 | if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { |
f296401b | 214 | pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); |
6ff5801a RZ |
215 | strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); |
216 | } | |
217 | ||
218 | switch (amiga_model) { | |
219 | case AMI_UNKNOWN: | |
220 | goto Generic; | |
221 | ||
222 | case AMI_600: | |
223 | case AMI_1200: | |
224 | AMIGAHW_SET(A1200_IDE); | |
225 | AMIGAHW_SET(PCMCIA); | |
226 | case AMI_500: | |
227 | case AMI_500PLUS: | |
228 | case AMI_1000: | |
229 | case AMI_2000: | |
230 | case AMI_2500: | |
231 | AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ | |
232 | goto Generic; | |
233 | ||
234 | case AMI_3000: | |
235 | case AMI_3000T: | |
236 | AMIGAHW_SET(AMBER_FF); | |
237 | AMIGAHW_SET(MAGIC_REKICK); | |
238 | /* fall through */ | |
239 | case AMI_3000PLUS: | |
240 | AMIGAHW_SET(A3000_SCSI); | |
241 | AMIGAHW_SET(A3000_CLK); | |
242 | AMIGAHW_SET(ZORRO3); | |
243 | goto Generic; | |
244 | ||
245 | case AMI_4000T: | |
246 | AMIGAHW_SET(A4000_SCSI); | |
247 | /* fall through */ | |
248 | case AMI_4000: | |
249 | AMIGAHW_SET(A4000_IDE); | |
250 | AMIGAHW_SET(A3000_CLK); | |
251 | AMIGAHW_SET(ZORRO3); | |
252 | goto Generic; | |
253 | ||
254 | case AMI_CDTV: | |
255 | case AMI_CD32: | |
256 | AMIGAHW_SET(CD_ROM); | |
257 | AMIGAHW_SET(A2000_CLK); /* Is this correct? */ | |
258 | goto Generic; | |
259 | ||
260 | Generic: | |
261 | AMIGAHW_SET(AMI_VIDEO); | |
262 | AMIGAHW_SET(AMI_BLITTER); | |
263 | AMIGAHW_SET(AMI_AUDIO); | |
264 | AMIGAHW_SET(AMI_FLOPPY); | |
265 | AMIGAHW_SET(AMI_KEYBOARD); | |
266 | AMIGAHW_SET(AMI_MOUSE); | |
267 | AMIGAHW_SET(AMI_SERIAL); | |
268 | AMIGAHW_SET(AMI_PARALLEL); | |
269 | AMIGAHW_SET(CHIP_RAM); | |
270 | AMIGAHW_SET(PAULA); | |
271 | ||
272 | switch (amiga_chipset) { | |
273 | case CS_OCS: | |
274 | case CS_ECS: | |
275 | case CS_AGA: | |
276 | switch (amiga_custom.deniseid & 0xf) { | |
277 | case 0x0c: | |
278 | AMIGAHW_SET(DENISE_HR); | |
279 | break; | |
280 | case 0x08: | |
281 | AMIGAHW_SET(LISA); | |
282 | break; | |
283 | } | |
284 | break; | |
285 | default: | |
286 | AMIGAHW_SET(DENISE); | |
287 | break; | |
288 | } | |
289 | switch ((amiga_custom.vposr>>8) & 0x7f) { | |
290 | case 0x00: | |
291 | AMIGAHW_SET(AGNUS_PAL); | |
292 | break; | |
293 | case 0x10: | |
294 | AMIGAHW_SET(AGNUS_NTSC); | |
295 | break; | |
296 | case 0x20: | |
297 | case 0x21: | |
298 | AMIGAHW_SET(AGNUS_HR_PAL); | |
299 | break; | |
300 | case 0x30: | |
301 | case 0x31: | |
302 | AMIGAHW_SET(AGNUS_HR_NTSC); | |
303 | break; | |
304 | case 0x22: | |
305 | case 0x23: | |
306 | AMIGAHW_SET(ALICE_PAL); | |
307 | break; | |
308 | case 0x32: | |
309 | case 0x33: | |
310 | AMIGAHW_SET(ALICE_NTSC); | |
311 | break; | |
312 | } | |
313 | AMIGAHW_SET(ZORRO); | |
314 | break; | |
315 | ||
316 | case AMI_DRACO: | |
317 | panic("No support for Draco yet"); | |
318 | ||
319 | default: | |
320 | panic("Unknown Amiga Model"); | |
321 | } | |
322 | ||
323 | #define AMIGAHW_ANNOUNCE(name, str) \ | |
324 | if (AMIGAHW_PRESENT(name)) \ | |
f296401b | 325 | pr_cont(str) |
6ff5801a RZ |
326 | |
327 | AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); | |
328 | AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); | |
329 | AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); | |
330 | AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); | |
331 | AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); | |
332 | AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); | |
333 | AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); | |
334 | AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); | |
335 | AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); | |
336 | AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); | |
337 | AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); | |
338 | AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); | |
339 | AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); | |
340 | AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); | |
341 | AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); | |
342 | AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); | |
343 | AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); | |
344 | AMIGAHW_ANNOUNCE(PAULA, "PAULA "); | |
345 | AMIGAHW_ANNOUNCE(DENISE, "DENISE "); | |
346 | AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); | |
347 | AMIGAHW_ANNOUNCE(LISA, "LISA "); | |
348 | AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); | |
349 | AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); | |
350 | AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); | |
351 | AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); | |
352 | AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); | |
353 | AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); | |
354 | AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); | |
355 | AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); | |
356 | if (AMIGAHW_PRESENT(ZORRO)) | |
f296401b FF |
357 | pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); |
358 | pr_cont("\n"); | |
1da177e4 LT |
359 | |
360 | #undef AMIGAHW_ANNOUNCE | |
361 | } | |
362 | ||
50190edb GU |
363 | |
364 | static unsigned long amiga_random_get_entropy(void) | |
365 | { | |
366 | /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ | |
367 | return *(unsigned long *)&amiga_custom.vposr; | |
368 | } | |
369 | ||
370 | ||
1da177e4 LT |
371 | /* |
372 | * Setup the Amiga configuration info | |
373 | */ | |
374 | ||
375 | void __init config_amiga(void) | |
376 | { | |
6ff5801a RZ |
377 | int i; |
378 | ||
6ff5801a RZ |
379 | amiga_identify(); |
380 | ||
381 | /* Yuk, we don't have PCI memory */ | |
382 | iomem_resource.name = "Memory"; | |
383 | for (i = 0; i < 4; i++) | |
384 | request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); | |
385 | ||
386 | mach_sched_init = amiga_sched_init; | |
387 | mach_init_IRQ = amiga_init_IRQ; | |
388 | mach_get_model = amiga_get_model; | |
389 | mach_get_hardware_list = amiga_get_hardware_list; | |
c8d5ba18 | 390 | arch_gettimeoffset = amiga_gettimeoffset; |
6ff5801a RZ |
391 | |
392 | /* | |
393 | * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI | |
394 | * code will not be able to allocate any mem for transfers, unless we are | |
395 | * dealing with a Z2 mem only system. /Jes | |
396 | */ | |
397 | mach_max_dma_address = 0xffffffff; | |
398 | ||
6ff5801a | 399 | mach_reset = amiga_reset; |
1da177e4 | 400 | #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) |
6ff5801a | 401 | mach_beep = amiga_mksound; |
1da177e4 LT |
402 | #endif |
403 | ||
404 | #ifdef CONFIG_HEARTBEAT | |
6ff5801a | 405 | mach_heartbeat = amiga_heartbeat; |
1da177e4 LT |
406 | #endif |
407 | ||
50190edb GU |
408 | mach_random_get_entropy = amiga_random_get_entropy; |
409 | ||
0795dbcc | 410 | /* Fill in the clock value (based on the 700 kHz E-Clock) */ |
6ff5801a RZ |
411 | amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ |
412 | ||
413 | /* clear all DMA bits */ | |
414 | amiga_custom.dmacon = DMAF_ALL; | |
415 | /* ensure that the DMA master bit is set */ | |
416 | amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; | |
417 | ||
418 | /* don't use Z2 RAM as system memory on Z3 capable machines */ | |
419 | if (AMIGAHW_PRESENT(ZORRO3)) { | |
420 | int i, j; | |
421 | u32 disabled_z2mem = 0; | |
422 | ||
423 | for (i = 0; i < m68k_num_memory; i++) { | |
424 | if (m68k_memory[i].addr < 16*1024*1024) { | |
425 | if (i == 0) { | |
426 | /* don't cut off the branch we're sitting on */ | |
f296401b | 427 | pr_warn("Warning: kernel runs in Zorro II memory\n"); |
6ff5801a RZ |
428 | continue; |
429 | } | |
430 | disabled_z2mem += m68k_memory[i].size; | |
431 | m68k_num_memory--; | |
432 | for (j = i; j < m68k_num_memory; j++) | |
433 | m68k_memory[j] = m68k_memory[j+1]; | |
434 | i--; | |
435 | } | |
436 | } | |
437 | if (disabled_z2mem) | |
f296401b FF |
438 | pr_info("%dK of Zorro II memory will not be used as system memory\n", |
439 | disabled_z2mem>>10); | |
6ff5801a RZ |
440 | } |
441 | ||
442 | /* request all RAM */ | |
443 | for (i = 0; i < m68k_num_memory; i++) { | |
444 | ram_resource[i].name = | |
445 | (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : | |
446 | (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : | |
447 | "16-bit Slow RAM"; | |
448 | ram_resource[i].start = m68k_memory[i].addr; | |
449 | ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; | |
450 | request_resource(&iomem_resource, &ram_resource[i]); | |
451 | } | |
452 | ||
453 | /* initialize chipram allocator */ | |
454 | amiga_chip_init(); | |
455 | ||
6ff5801a RZ |
456 | /* our beloved beeper */ |
457 | if (AMIGAHW_PRESENT(AMI_AUDIO)) | |
458 | amiga_init_sound(); | |
459 | ||
460 | /* | |
461 | * if it is an A3000, set the magic bit that forces | |
462 | * a hard rekick | |
463 | */ | |
464 | if (AMIGAHW_PRESENT(MAGIC_REKICK)) | |
465 | *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; | |
1da177e4 LT |
466 | } |
467 | ||
468 | static unsigned short jiffy_ticks; | |
469 | ||
40220c1a | 470 | static void __init amiga_sched_init(irq_handler_t timer_routine) |
1da177e4 LT |
471 | { |
472 | static struct resource sched_res = { | |
6ff5801a | 473 | .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, |
1da177e4 | 474 | }; |
1a0caf41 | 475 | jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); |
1da177e4 LT |
476 | |
477 | if (request_resource(&mb_resources._ciab, &sched_res)) | |
f296401b | 478 | pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); |
1da177e4 LT |
479 | ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ |
480 | ciab.talo = jiffy_ticks % 256; | |
481 | ciab.tahi = jiffy_ticks / 256; | |
482 | ||
483 | /* install interrupt service routine for CIAB Timer A | |
484 | * | |
485 | * Please don't change this to use ciaa, as it interferes with the | |
486 | * SCSI code. We'll have to take a look at this later | |
487 | */ | |
66acd258 GU |
488 | if (request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL)) |
489 | pr_err("Couldn't register timer interrupt\n"); | |
1da177e4 LT |
490 | /* start timer */ |
491 | ciab.cra |= 0x11; | |
492 | } | |
493 | ||
494 | #define TICK_SIZE 10000 | |
495 | ||
496 | /* This is always executed with interrupts disabled. */ | |
c8d5ba18 | 497 | static u32 amiga_gettimeoffset(void) |
1da177e4 LT |
498 | { |
499 | unsigned short hi, lo, hi2; | |
c8d5ba18 | 500 | u32 ticks, offset = 0; |
1da177e4 LT |
501 | |
502 | /* read CIA B timer A current value */ | |
503 | hi = ciab.tahi; | |
504 | lo = ciab.talo; | |
505 | hi2 = ciab.tahi; | |
506 | ||
507 | if (hi != hi2) { | |
508 | lo = ciab.talo; | |
509 | hi = hi2; | |
510 | } | |
511 | ||
512 | ticks = hi << 8 | lo; | |
513 | ||
514 | if (ticks > jiffy_ticks / 2) | |
515 | /* check for pending interrupt */ | |
516 | if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) | |
517 | offset = 10000; | |
518 | ||
519 | ticks = jiffy_ticks - ticks; | |
520 | ticks = (10000 * ticks) / jiffy_ticks; | |
521 | ||
c8d5ba18 | 522 | return (ticks + offset) * 1000; |
1da177e4 LT |
523 | } |
524 | ||
ff2d8b19 | 525 | static void amiga_reset(void) __noreturn; |
1da177e4 | 526 | |
6ff5801a | 527 | static void amiga_reset(void) |
1da177e4 | 528 | { |
6ff5801a RZ |
529 | unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); |
530 | unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); | |
531 | ||
532 | local_irq_disable(); | |
533 | if (CPU_IS_040_OR_060) | |
534 | /* Setup transparent translation registers for mapping | |
535 | * of 16 MB kernel segment before disabling translation | |
536 | */ | |
537 | asm volatile ("\n" | |
538 | " move.l %0,%%d0\n" | |
539 | " and.l #0xff000000,%%d0\n" | |
540 | " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ | |
541 | " .chip 68040\n" | |
542 | " movec %%d0,%%itt0\n" | |
543 | " movec %%d0,%%dtt0\n" | |
544 | " .chip 68k\n" | |
545 | " jmp %0@\n" | |
546 | : /* no outputs */ | |
547 | : "a" (jmp_addr040) | |
548 | : "d0"); | |
549 | else | |
550 | /* for 680[23]0, just disable translation and jump to the physical | |
551 | * address of the label | |
552 | */ | |
553 | asm volatile ("\n" | |
554 | " pmove %%tc,%@\n" | |
555 | " bclr #7,%@\n" | |
556 | " pmove %@,%%tc\n" | |
557 | " jmp %0@\n" | |
558 | : /* no outputs */ | |
559 | : "a" (jmp_addr)); | |
560 | jmp_addr_label040: | |
561 | /* disable translation on '040 now */ | |
562 | asm volatile ("\n" | |
563 | " moveq #0,%%d0\n" | |
564 | " .chip 68040\n" | |
565 | " movec %%d0,%%tc\n" /* disable MMU */ | |
566 | " .chip 68k\n" | |
567 | : /* no outputs */ | |
568 | : /* no inputs */ | |
569 | : "d0"); | |
570 | ||
571 | jmp_addr_label: | |
572 | /* pickup reset address from AmigaOS ROM, reset devices and jump | |
573 | * to reset address | |
574 | */ | |
575 | asm volatile ("\n" | |
576 | " move.w #0x2700,%sr\n" | |
577 | " lea 0x01000000,%a0\n" | |
578 | " sub.l %a0@(-0x14),%a0\n" | |
579 | " move.l %a0@(4),%a0\n" | |
580 | " subq.l #2,%a0\n" | |
581 | " jra 1f\n" | |
582 | /* align on a longword boundary */ | |
583 | " " __ALIGN_STR "\n" | |
584 | "1:\n" | |
585 | " reset\n" | |
586 | " jmp %a0@"); | |
587 | ||
588 | for (;;) | |
589 | ; | |
1da177e4 LT |
590 | } |
591 | ||
592 | ||
593 | /* | |
594 | * Debugging | |
595 | */ | |
596 | ||
597 | #define SAVEKMSG_MAXMEM 128*1024 | |
598 | ||
599 | #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ | |
600 | #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ | |
601 | ||
602 | struct savekmsg { | |
6ff5801a RZ |
603 | unsigned long magic1; /* SAVEKMSG_MAGIC1 */ |
604 | unsigned long magic2; /* SAVEKMSG_MAGIC2 */ | |
605 | unsigned long magicptr; /* address of magic1 */ | |
606 | unsigned long size; | |
607 | char data[0]; | |
1da177e4 LT |
608 | }; |
609 | ||
610 | static struct savekmsg *savekmsg; | |
611 | ||
612 | static void amiga_mem_console_write(struct console *co, const char *s, | |
613 | unsigned int count) | |
614 | { | |
6ff5801a RZ |
615 | if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { |
616 | memcpy(savekmsg->data + savekmsg->size, s, count); | |
617 | savekmsg->size += count; | |
618 | } | |
1da177e4 LT |
619 | } |
620 | ||
d6713b40 | 621 | static int __init amiga_savekmsg_setup(char *arg) |
1da177e4 | 622 | { |
8a09cec2 GU |
623 | bool registered; |
624 | ||
d6713b40 | 625 | if (!MACH_IS_AMIGA || strcmp(arg, "mem")) |
5df1abdb | 626 | return 0; |
d6713b40 | 627 | |
5df1abdb GU |
628 | if (amiga_chip_size < SAVEKMSG_MAXMEM) { |
629 | pr_err("Not enough chipram for debugging\n"); | |
630 | return -ENOMEM; | |
d6713b40 RZ |
631 | } |
632 | ||
5df1abdb GU |
633 | /* Just steal the block, the chipram allocator isn't functional yet */ |
634 | amiga_chip_size -= SAVEKMSG_MAXMEM; | |
6112ea08 | 635 | savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); |
6ff5801a RZ |
636 | savekmsg->magic1 = SAVEKMSG_MAGIC1; |
637 | savekmsg->magic2 = SAVEKMSG_MAGIC2; | |
638 | savekmsg->magicptr = ZTWO_PADDR(savekmsg); | |
639 | savekmsg->size = 0; | |
d6713b40 | 640 | |
8a09cec2 | 641 | registered = !!amiga_console_driver.write; |
d6713b40 | 642 | amiga_console_driver.write = amiga_mem_console_write; |
8a09cec2 GU |
643 | if (!registered) |
644 | register_console(&amiga_console_driver); | |
d6713b40 | 645 | return 0; |
1da177e4 LT |
646 | } |
647 | ||
d6713b40 RZ |
648 | early_param("debug", amiga_savekmsg_setup); |
649 | ||
1da177e4 LT |
650 | static void amiga_serial_putc(char c) |
651 | { | |
6ff5801a RZ |
652 | amiga_custom.serdat = (unsigned char)c | 0x100; |
653 | while (!(amiga_custom.serdatr & 0x2000)) | |
654 | ; | |
1da177e4 LT |
655 | } |
656 | ||
0795dbcc AB |
657 | static void amiga_serial_console_write(struct console *co, const char *s, |
658 | unsigned int count) | |
1da177e4 | 659 | { |
6ff5801a RZ |
660 | while (count--) { |
661 | if (*s == '\n') | |
662 | amiga_serial_putc('\r'); | |
663 | amiga_serial_putc(*s++); | |
664 | } | |
1da177e4 LT |
665 | } |
666 | ||
0795dbcc | 667 | #if 0 |
1da177e4 LT |
668 | void amiga_serial_puts(const char *s) |
669 | { | |
6ff5801a | 670 | amiga_serial_console_write(NULL, s, strlen(s)); |
1da177e4 LT |
671 | } |
672 | ||
673 | int amiga_serial_console_wait_key(struct console *co) | |
674 | { | |
6ff5801a RZ |
675 | int ch; |
676 | ||
677 | while (!(amiga_custom.intreqr & IF_RBF)) | |
678 | barrier(); | |
679 | ch = amiga_custom.serdatr & 0xff; | |
680 | /* clear the interrupt, so that another character can be read */ | |
681 | amiga_custom.intreq = IF_RBF; | |
682 | return ch; | |
1da177e4 LT |
683 | } |
684 | ||
685 | void amiga_serial_gets(struct console *co, char *s, int len) | |
686 | { | |
6ff5801a RZ |
687 | int ch, cnt = 0; |
688 | ||
689 | while (1) { | |
690 | ch = amiga_serial_console_wait_key(co); | |
691 | ||
692 | /* Check for backspace. */ | |
693 | if (ch == 8 || ch == 127) { | |
694 | if (cnt == 0) { | |
695 | amiga_serial_putc('\007'); | |
696 | continue; | |
697 | } | |
698 | cnt--; | |
699 | amiga_serial_puts("\010 \010"); | |
700 | continue; | |
701 | } | |
1da177e4 | 702 | |
6ff5801a RZ |
703 | /* Check for enter. */ |
704 | if (ch == 10 || ch == 13) | |
705 | break; | |
1da177e4 | 706 | |
6ff5801a RZ |
707 | /* See if line is too long. */ |
708 | if (cnt >= len + 1) { | |
709 | amiga_serial_putc(7); | |
710 | cnt--; | |
711 | continue; | |
712 | } | |
1da177e4 | 713 | |
6ff5801a RZ |
714 | /* Store and echo character. */ |
715 | s[cnt++] = ch; | |
716 | amiga_serial_putc(ch); | |
717 | } | |
718 | /* Print enter. */ | |
719 | amiga_serial_puts("\r\n"); | |
720 | s[cnt] = 0; | |
1da177e4 LT |
721 | } |
722 | #endif | |
723 | ||
d6713b40 | 724 | static int __init amiga_debug_setup(char *arg) |
1da177e4 | 725 | { |
8a09cec2 GU |
726 | bool registered; |
727 | ||
728 | if (!MACH_IS_AMIGA || strcmp(arg, "ser")) | |
729 | return 0; | |
730 | ||
731 | /* no initialization required (?) */ | |
732 | registered = !!amiga_console_driver.write; | |
733 | amiga_console_driver.write = amiga_serial_console_write; | |
734 | if (!registered) | |
1da177e4 | 735 | register_console(&amiga_console_driver); |
d6713b40 | 736 | return 0; |
1da177e4 LT |
737 | } |
738 | ||
d6713b40 RZ |
739 | early_param("debug", amiga_debug_setup); |
740 | ||
1da177e4 LT |
741 | #ifdef CONFIG_HEARTBEAT |
742 | static void amiga_heartbeat(int on) | |
743 | { | |
6ff5801a RZ |
744 | if (on) |
745 | ciaa.pra &= ~2; | |
746 | else | |
747 | ciaa.pra |= 2; | |
1da177e4 LT |
748 | } |
749 | #endif | |
750 | ||
751 | /* | |
752 | * Amiga specific parts of /proc | |
753 | */ | |
754 | ||
755 | static void amiga_get_model(char *model) | |
756 | { | |
6ff5801a | 757 | strcpy(model, amiga_model_name); |
1da177e4 LT |
758 | } |
759 | ||
760 | ||
813dcf7a | 761 | static void amiga_get_hardware_list(struct seq_file *m) |
1da177e4 | 762 | { |
6ff5801a | 763 | if (AMIGAHW_PRESENT(CHIP_RAM)) |
813dcf7a AD |
764 | seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); |
765 | seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", | |
6ff5801a RZ |
766 | amiga_psfreq, amiga_eclock); |
767 | if (AMIGAHW_PRESENT(AMI_VIDEO)) { | |
768 | char *type; | |
769 | switch (amiga_chipset) { | |
770 | case CS_OCS: | |
771 | type = "OCS"; | |
772 | break; | |
773 | case CS_ECS: | |
774 | type = "ECS"; | |
775 | break; | |
776 | case CS_AGA: | |
777 | type = "AGA"; | |
778 | break; | |
779 | default: | |
780 | type = "Old or Unknown"; | |
781 | break; | |
782 | } | |
813dcf7a | 783 | seq_printf(m, "Graphics:\t%s\n", type); |
1da177e4 | 784 | } |
1da177e4 LT |
785 | |
786 | #define AMIGAHW_ANNOUNCE(name, str) \ | |
6ff5801a | 787 | if (AMIGAHW_PRESENT(name)) \ |
813dcf7a | 788 | seq_printf (m, "\t%s\n", str) |
6ff5801a | 789 | |
813dcf7a | 790 | seq_printf (m, "Detected hardware:\n"); |
6ff5801a RZ |
791 | |
792 | AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); | |
793 | AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); | |
794 | AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); | |
795 | AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); | |
796 | AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); | |
797 | AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); | |
798 | AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); | |
799 | AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); | |
800 | AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); | |
801 | AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); | |
802 | AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); | |
803 | AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); | |
804 | AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); | |
805 | AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); | |
806 | AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); | |
807 | AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); | |
808 | AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); | |
809 | AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); | |
810 | AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); | |
811 | AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); | |
812 | AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); | |
813 | AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); | |
814 | AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); | |
815 | AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); | |
816 | AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); | |
817 | AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); | |
818 | AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); | |
819 | AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); | |
820 | AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); | |
1da177e4 | 821 | #ifdef CONFIG_ZORRO |
6ff5801a | 822 | if (AMIGAHW_PRESENT(ZORRO)) |
813dcf7a | 823 | seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " |
6ff5801a RZ |
824 | "Device%s\n", |
825 | AMIGAHW_PRESENT(ZORRO3) ? "I" : "", | |
826 | zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); | |
1da177e4 LT |
827 | #endif /* CONFIG_ZORRO */ |
828 | ||
829 | #undef AMIGAHW_ANNOUNCE | |
1da177e4 | 830 | } |
39d2d99d GU |
831 | |
832 | /* | |
833 | * The Amiga keyboard driver needs key_maps, but we cannot export it in | |
834 | * drivers/char/defkeymap.c, as it is autogenerated | |
835 | */ | |
836 | #ifdef CONFIG_HW_CONSOLE | |
837 | EXPORT_SYMBOL_GPL(key_maps); | |
838 | #endif |