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11#include <linux/kernel.h>
12#include <linux/mm.h>
13#include <linux/sched.h>
14#include <linux/delay.h>
15#include <linux/interrupt.h>
16#include <linux/fs.h>
17#include <linux/console.h>
18#include <linux/genhd.h>
19#include <linux/errno.h>
20#include <linux/string.h>
21#include <linux/init.h>
22#include <linux/bootmem.h>
23#include <linux/proc_fs.h>
24#include <linux/seq_file.h>
25#include <linux/module.h>
26#include <linux/initrd.h>
27
28#include <asm/bootinfo.h>
29#include <asm/sections.h>
30#include <asm/setup.h>
31#include <asm/fpu.h>
32#include <asm/irq.h>
33#include <asm/io.h>
34#include <asm/machdep.h>
35#ifdef CONFIG_AMIGA
36#include <asm/amigahw.h>
37#endif
38#ifdef CONFIG_ATARI
39#include <asm/atarihw.h>
40#include <asm/atari_stram.h>
41#endif
42#ifdef CONFIG_SUN3X
43#include <asm/dvma.h>
44#endif
45#include <asm/natfeat.h>
46
47#if !FPSTATESIZE || !NR_IRQS
48#warning No CPU/platform type selected, your kernel will not work!
49#warning Are you building an allnoconfig kernel?
50#endif
51
52unsigned long m68k_machtype;
53EXPORT_SYMBOL(m68k_machtype);
54unsigned long m68k_cputype;
55EXPORT_SYMBOL(m68k_cputype);
56unsigned long m68k_fputype;
57unsigned long m68k_mmutype;
58EXPORT_SYMBOL(m68k_mmutype);
59#ifdef CONFIG_VME
60unsigned long vme_brdtype;
61EXPORT_SYMBOL(vme_brdtype);
62#endif
63
64int m68k_is040or060;
65EXPORT_SYMBOL(m68k_is040or060);
66
67extern unsigned long availmem;
68
69int m68k_num_memory;
70EXPORT_SYMBOL(m68k_num_memory);
71int m68k_realnum_memory;
72EXPORT_SYMBOL(m68k_realnum_memory);
73unsigned long m68k_memoffset;
74struct mem_info m68k_memory[NUM_MEMINFO];
75EXPORT_SYMBOL(m68k_memory);
76
77struct mem_info m68k_ramdisk;
78
79static char m68k_command_line[CL_SIZE];
80
81void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;
82
83void (*mach_init_IRQ) (void) __initdata = NULL;
84void (*mach_get_model) (char *model);
85void (*mach_get_hardware_list) (struct seq_file *m);
86
87int (*mach_hwclk) (int, struct rtc_time*);
88EXPORT_SYMBOL(mach_hwclk);
89int (*mach_set_clock_mmss) (unsigned long);
90unsigned int (*mach_get_ss)(void);
91int (*mach_get_rtc_pll)(struct rtc_pll_info *);
92int (*mach_set_rtc_pll)(struct rtc_pll_info *);
93EXPORT_SYMBOL(mach_get_ss);
94EXPORT_SYMBOL(mach_get_rtc_pll);
95EXPORT_SYMBOL(mach_set_rtc_pll);
96void (*mach_reset)( void );
97void (*mach_halt)( void );
98void (*mach_power_off)( void );
99long mach_max_dma_address = 0x00ffffff;
100#ifdef CONFIG_HEARTBEAT
101void (*mach_heartbeat) (int);
102EXPORT_SYMBOL(mach_heartbeat);
103#endif
104#ifdef CONFIG_M68K_L2_CACHE
105void (*mach_l2_flush) (int);
106#endif
107#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
108void (*mach_beep)(unsigned int, unsigned int);
109EXPORT_SYMBOL(mach_beep);
110#endif
111#if defined(CONFIG_ISA) && defined(MULTI_ISA)
112int isa_type;
113int isa_sex;
114EXPORT_SYMBOL(isa_type);
115EXPORT_SYMBOL(isa_sex);
116#endif
117
118extern int amiga_parse_bootinfo(const struct bi_record *);
119extern int atari_parse_bootinfo(const struct bi_record *);
120extern int mac_parse_bootinfo(const struct bi_record *);
121extern int q40_parse_bootinfo(const struct bi_record *);
122extern int bvme6000_parse_bootinfo(const struct bi_record *);
123extern int mvme16x_parse_bootinfo(const struct bi_record *);
124extern int mvme147_parse_bootinfo(const struct bi_record *);
125extern int hp300_parse_bootinfo(const struct bi_record *);
126extern int apollo_parse_bootinfo(const struct bi_record *);
127
128extern void config_amiga(void);
129extern void config_atari(void);
130extern void config_mac(void);
131extern void config_sun3(void);
132extern void config_apollo(void);
133extern void config_mvme147(void);
134extern void config_mvme16x(void);
135extern void config_bvme6000(void);
136extern void config_hp300(void);
137extern void config_q40(void);
138extern void config_sun3x(void);
139
140#define MASK_256K 0xfffc0000
141
142extern void paging_init(void);
143
144static void __init m68k_parse_bootinfo(const struct bi_record *record)
145{
146 while (record->tag != BI_LAST) {
147 int unknown = 0;
148 const unsigned long *data = record->data;
149
150 switch (record->tag) {
151 case BI_MACHTYPE:
152 case BI_CPUTYPE:
153 case BI_FPUTYPE:
154 case BI_MMUTYPE:
155
156 break;
157
158 case BI_MEMCHUNK:
159 if (m68k_num_memory < NUM_MEMINFO) {
160 m68k_memory[m68k_num_memory].addr = data[0];
161 m68k_memory[m68k_num_memory].size = data[1];
162 m68k_num_memory++;
163 } else
164 printk("m68k_parse_bootinfo: too many memory chunks\n");
165 break;
166
167 case BI_RAMDISK:
168 m68k_ramdisk.addr = data[0];
169 m68k_ramdisk.size = data[1];
170 break;
171
172 case BI_COMMAND_LINE:
173 strlcpy(m68k_command_line, (const char *)data,
174 sizeof(m68k_command_line));
175 break;
176
177 default:
178 if (MACH_IS_AMIGA)
179 unknown = amiga_parse_bootinfo(record);
180 else if (MACH_IS_ATARI)
181 unknown = atari_parse_bootinfo(record);
182 else if (MACH_IS_MAC)
183 unknown = mac_parse_bootinfo(record);
184 else if (MACH_IS_Q40)
185 unknown = q40_parse_bootinfo(record);
186 else if (MACH_IS_BVME6000)
187 unknown = bvme6000_parse_bootinfo(record);
188 else if (MACH_IS_MVME16x)
189 unknown = mvme16x_parse_bootinfo(record);
190 else if (MACH_IS_MVME147)
191 unknown = mvme147_parse_bootinfo(record);
192 else if (MACH_IS_HP300)
193 unknown = hp300_parse_bootinfo(record);
194 else if (MACH_IS_APOLLO)
195 unknown = apollo_parse_bootinfo(record);
196 else
197 unknown = 1;
198 }
199 if (unknown)
200 printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n",
201 record->tag);
202 record = (struct bi_record *)((unsigned long)record +
203 record->size);
204 }
205
206 m68k_realnum_memory = m68k_num_memory;
207#ifdef CONFIG_SINGLE_MEMORY_CHUNK
208 if (m68k_num_memory > 1) {
209 printk("Ignoring last %i chunks of physical memory\n",
210 (m68k_num_memory - 1));
211 m68k_num_memory = 1;
212 }
213#endif
214}
215
216void __init setup_arch(char **cmdline_p)
217{
218#ifndef CONFIG_SUN3
219 int i;
220#endif
221
222
223 if (!CPU_IS_COLDFIRE)
224 m68k_parse_bootinfo((const struct bi_record *)_end);
225
226 if (CPU_IS_040)
227 m68k_is040or060 = 4;
228 else if (CPU_IS_060)
229 m68k_is040or060 = 6;
230
231
232
233
234
235
236#ifndef CONFIG_M68KFPU_EMU_ONLY
237
238 if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060|FPU_COLDFIRE)) {
239 volatile int zero = 0;
240 asm volatile ("frestore %0" : : "m" (zero));
241 }
242#endif
243
244 if (CPU_IS_060) {
245 u32 pcr;
246
247 asm (".chip 68060; movec %%pcr,%0; .chip 68k"
248 : "=d" (pcr));
249 if (((pcr >> 8) & 0xff) <= 5) {
250 printk("Enabling workaround for errata I14\n");
251 asm (".chip 68060; movec %0,%%pcr; .chip 68k"
252 : : "d" (pcr | 0x20));
253 }
254 }
255
256 init_mm.start_code = PAGE_OFFSET;
257 init_mm.end_code = (unsigned long)_etext;
258 init_mm.end_data = (unsigned long)_edata;
259 init_mm.brk = (unsigned long)_end;
260
261#if defined(CONFIG_BOOTPARAM)
262 strncpy(m68k_command_line, CONFIG_BOOTPARAM_STRING, CL_SIZE);
263 m68k_command_line[CL_SIZE - 1] = 0;
264#endif
265 *cmdline_p = m68k_command_line;
266 memcpy(boot_command_line, *cmdline_p, CL_SIZE);
267
268 parse_early_param();
269
270#ifdef CONFIG_DUMMY_CONSOLE
271 conswitchp = &dummy_con;
272#endif
273
274 switch (m68k_machtype) {
275#ifdef CONFIG_AMIGA
276 case MACH_AMIGA:
277 config_amiga();
278 break;
279#endif
280#ifdef CONFIG_ATARI
281 case MACH_ATARI:
282 config_atari();
283 break;
284#endif
285#ifdef CONFIG_MAC
286 case MACH_MAC:
287 config_mac();
288 break;
289#endif
290#ifdef CONFIG_SUN3
291 case MACH_SUN3:
292 config_sun3();
293 break;
294#endif
295#ifdef CONFIG_APOLLO
296 case MACH_APOLLO:
297 config_apollo();
298 break;
299#endif
300#ifdef CONFIG_MVME147
301 case MACH_MVME147:
302 config_mvme147();
303 break;
304#endif
305#ifdef CONFIG_MVME16x
306 case MACH_MVME16x:
307 config_mvme16x();
308 break;
309#endif
310#ifdef CONFIG_BVME6000
311 case MACH_BVME6000:
312 config_bvme6000();
313 break;
314#endif
315#ifdef CONFIG_HP300
316 case MACH_HP300:
317 config_hp300();
318 break;
319#endif
320#ifdef CONFIG_Q40
321 case MACH_Q40:
322 config_q40();
323 break;
324#endif
325#ifdef CONFIG_SUN3X
326 case MACH_SUN3X:
327 config_sun3x();
328 break;
329#endif
330#ifdef CONFIG_COLDFIRE
331 case MACH_M54XX:
332 config_BSP(NULL, 0);
333 break;
334#endif
335 default:
336 panic("No configuration setup");
337 }
338
339#ifdef CONFIG_NATFEAT
340 nf_init();
341#endif
342
343 paging_init();
344
345#ifndef CONFIG_SUN3
346 for (i = 1; i < m68k_num_memory; i++)
347 free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr,
348 m68k_memory[i].size);
349#ifdef CONFIG_BLK_DEV_INITRD
350 if (m68k_ramdisk.size) {
351 reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)),
352 m68k_ramdisk.addr, m68k_ramdisk.size,
353 BOOTMEM_DEFAULT);
354 initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
355 initrd_end = initrd_start + m68k_ramdisk.size;
356 printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
357 }
358#endif
359
360#ifdef CONFIG_ATARI
361 if (MACH_IS_ATARI)
362 atari_stram_reserve_pages((void *)availmem);
363#endif
364#ifdef CONFIG_SUN3X
365 if (MACH_IS_SUN3X) {
366 dvma_init();
367 }
368#endif
369
370#endif
371
372
373#if defined(CONFIG_ISA) && defined(MULTI_ISA)
374 if (MACH_IS_Q40) {
375 isa_type = ISA_TYPE_Q40;
376 isa_sex = 0;
377 }
378#ifdef CONFIG_AMIGA_PCMCIA
379 if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) {
380 isa_type = ISA_TYPE_AG;
381 isa_sex = 1;
382 }
383#endif
384#ifdef CONFIG_ATARI_ROM_ISA
385 if (MACH_IS_ATARI) {
386 isa_type = ISA_TYPE_ENEC;
387 isa_sex = 0;
388 }
389#endif
390#endif
391}
392
393static int show_cpuinfo(struct seq_file *m, void *v)
394{
395 const char *cpu, *mmu, *fpu;
396 unsigned long clockfreq, clockfactor;
397
398#define LOOP_CYCLES_68020 (8)
399#define LOOP_CYCLES_68030 (8)
400#define LOOP_CYCLES_68040 (3)
401#define LOOP_CYCLES_68060 (1)
402#define LOOP_CYCLES_COLDFIRE (2)
403
404 if (CPU_IS_020) {
405 cpu = "68020";
406 clockfactor = LOOP_CYCLES_68020;
407 } else if (CPU_IS_030) {
408 cpu = "68030";
409 clockfactor = LOOP_CYCLES_68030;
410 } else if (CPU_IS_040) {
411 cpu = "68040";
412 clockfactor = LOOP_CYCLES_68040;
413 } else if (CPU_IS_060) {
414 cpu = "68060";
415 clockfactor = LOOP_CYCLES_68060;
416 } else if (CPU_IS_COLDFIRE) {
417 cpu = "ColdFire";
418 clockfactor = LOOP_CYCLES_COLDFIRE;
419 } else {
420 cpu = "680x0";
421 clockfactor = 0;
422 }
423
424#ifdef CONFIG_M68KFPU_EMU_ONLY
425 fpu = "none(soft float)";
426#else
427 if (m68k_fputype & FPU_68881)
428 fpu = "68881";
429 else if (m68k_fputype & FPU_68882)
430 fpu = "68882";
431 else if (m68k_fputype & FPU_68040)
432 fpu = "68040";
433 else if (m68k_fputype & FPU_68060)
434 fpu = "68060";
435 else if (m68k_fputype & FPU_SUNFPA)
436 fpu = "Sun FPA";
437 else if (m68k_fputype & FPU_COLDFIRE)
438 fpu = "ColdFire";
439 else
440 fpu = "none";
441#endif
442
443 if (m68k_mmutype & MMU_68851)
444 mmu = "68851";
445 else if (m68k_mmutype & MMU_68030)
446 mmu = "68030";
447 else if (m68k_mmutype & MMU_68040)
448 mmu = "68040";
449 else if (m68k_mmutype & MMU_68060)
450 mmu = "68060";
451 else if (m68k_mmutype & MMU_SUN3)
452 mmu = "Sun-3";
453 else if (m68k_mmutype & MMU_APOLLO)
454 mmu = "Apollo";
455 else if (m68k_mmutype & MMU_COLDFIRE)
456 mmu = "ColdFire";
457 else
458 mmu = "unknown";
459
460 clockfreq = loops_per_jiffy * HZ * clockfactor;
461
462 seq_printf(m, "CPU:\t\t%s\n"
463 "MMU:\t\t%s\n"
464 "FPU:\t\t%s\n"
465 "Clocking:\t%lu.%1luMHz\n"
466 "BogoMips:\t%lu.%02lu\n"
467 "Calibration:\t%lu loops\n",
468 cpu, mmu, fpu,
469 clockfreq/1000000,(clockfreq/100000)%10,
470 loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100,
471 loops_per_jiffy);
472 return 0;
473}
474
475static void *c_start(struct seq_file *m, loff_t *pos)
476{
477 return *pos < 1 ? (void *)1 : NULL;
478}
479static void *c_next(struct seq_file *m, void *v, loff_t *pos)
480{
481 ++*pos;
482 return NULL;
483}
484static void c_stop(struct seq_file *m, void *v)
485{
486}
487const struct seq_operations cpuinfo_op = {
488 .start = c_start,
489 .next = c_next,
490 .stop = c_stop,
491 .show = show_cpuinfo,
492};
493
494#ifdef CONFIG_PROC_HARDWARE
495static int hardware_proc_show(struct seq_file *m, void *v)
496{
497 char model[80];
498 unsigned long mem;
499 int i;
500
501 if (mach_get_model)
502 mach_get_model(model);
503 else
504 strcpy(model, "Unknown m68k");
505
506 seq_printf(m, "Model:\t\t%s\n", model);
507 for (mem = 0, i = 0; i < m68k_num_memory; i++)
508 mem += m68k_memory[i].size;
509 seq_printf(m, "System Memory:\t%ldK\n", mem >> 10);
510
511 if (mach_get_hardware_list)
512 mach_get_hardware_list(m);
513
514 return 0;
515}
516
517static int hardware_proc_open(struct inode *inode, struct file *file)
518{
519 return single_open(file, hardware_proc_show, NULL);
520}
521
522static const struct file_operations hardware_proc_fops = {
523 .open = hardware_proc_open,
524 .read = seq_read,
525 .llseek = seq_lseek,
526 .release = single_release,
527};
528
529static int __init proc_hardware_init(void)
530{
531 proc_create("hardware", 0, NULL, &hardware_proc_fops);
532 return 0;
533}
534module_init(proc_hardware_init);
535#endif
536
537void check_bugs(void)
538{
539#ifndef CONFIG_M68KFPU_EMU
540 if (m68k_fputype == 0) {
541 printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, "
542 "WHICH IS REQUIRED BY LINUX/M68K ***\n");
543 printk(KERN_EMERG "Upgrade your hardware or join the FPU "
544 "emulation project\n");
545 panic("no FPU");
546 }
547#endif
548}
549
550#ifdef CONFIG_ADB
551static int __init adb_probe_sync_enable (char *str) {
552 extern int __adb_probe_sync;
553 __adb_probe_sync = 1;
554 return 1;
555}
556
557__setup("adb_sync", adb_probe_sync_enable);
558#endif
559
