root / hw / ppc_prep.c @ 49a2942d
History | View | Annotate | Download (22.5 kB)
1 |
/*
|
---|---|
2 |
* QEMU PPC PREP hardware System Emulator
|
3 |
*
|
4 |
* Copyright (c) 2003-2007 Jocelyn Mayer
|
5 |
*
|
6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
7 |
* of this software and associated documentation files (the "Software"), to deal
|
8 |
* in the Software without restriction, including without limitation the rights
|
9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
10 |
* copies of the Software, and to permit persons to whom the Software is
|
11 |
* furnished to do so, subject to the following conditions:
|
12 |
*
|
13 |
* The above copyright notice and this permission notice shall be included in
|
14 |
* all copies or substantial portions of the Software.
|
15 |
*
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
22 |
* THE SOFTWARE.
|
23 |
*/
|
24 |
#include "hw.h" |
25 |
#include "nvram.h" |
26 |
#include "pc.h" |
27 |
#include "fdc.h" |
28 |
#include "net.h" |
29 |
#include "sysemu.h" |
30 |
#include "isa.h" |
31 |
#include "pci.h" |
32 |
#include "prep_pci.h" |
33 |
#include "usb-ohci.h" |
34 |
#include "ppc.h" |
35 |
#include "boards.h" |
36 |
#include "qemu-log.h" |
37 |
#include "ide.h" |
38 |
#include "loader.h" |
39 |
#include "mc146818rtc.h" |
40 |
#include "blockdev.h" |
41 |
|
42 |
//#define HARD_DEBUG_PPC_IO
|
43 |
//#define DEBUG_PPC_IO
|
44 |
|
45 |
/* SMP is not enabled, for now */
|
46 |
#define MAX_CPUS 1 |
47 |
|
48 |
#define MAX_IDE_BUS 2 |
49 |
|
50 |
#define BIOS_SIZE (1024 * 1024) |
51 |
#define BIOS_FILENAME "ppc_rom.bin" |
52 |
#define KERNEL_LOAD_ADDR 0x01000000 |
53 |
#define INITRD_LOAD_ADDR 0x01800000 |
54 |
|
55 |
#if defined (HARD_DEBUG_PPC_IO) && !defined (DEBUG_PPC_IO)
|
56 |
#define DEBUG_PPC_IO
|
57 |
#endif
|
58 |
|
59 |
#if defined (HARD_DEBUG_PPC_IO)
|
60 |
#define PPC_IO_DPRINTF(fmt, ...) \
|
61 |
do { \
|
62 |
if (qemu_loglevel_mask(CPU_LOG_IOPORT)) { \
|
63 |
qemu_log("%s: " fmt, __func__ , ## __VA_ARGS__); \ |
64 |
} else { \
|
65 |
printf("%s : " fmt, __func__ , ## __VA_ARGS__); \ |
66 |
} \ |
67 |
} while (0) |
68 |
#elif defined (DEBUG_PPC_IO)
|
69 |
#define PPC_IO_DPRINTF(fmt, ...) \
|
70 |
qemu_log_mask(CPU_LOG_IOPORT, fmt, ## __VA_ARGS__) |
71 |
#else
|
72 |
#define PPC_IO_DPRINTF(fmt, ...) do { } while (0) |
73 |
#endif
|
74 |
|
75 |
/* Constants for devices init */
|
76 |
static const int ide_iobase[2] = { 0x1f0, 0x170 }; |
77 |
static const int ide_iobase2[2] = { 0x3f6, 0x376 }; |
78 |
static const int ide_irq[2] = { 13, 13 }; |
79 |
|
80 |
#define NE2000_NB_MAX 6 |
81 |
|
82 |
static uint32_t ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 }; |
83 |
static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 }; |
84 |
|
85 |
//static PITState *pit;
|
86 |
|
87 |
/* ISA IO ports bridge */
|
88 |
#define PPC_IO_BASE 0x80000000 |
89 |
|
90 |
#if 0
|
91 |
/* Speaker port 0x61 */
|
92 |
static int speaker_data_on;
|
93 |
static int dummy_refresh_clock;
|
94 |
#endif
|
95 |
|
96 |
static void speaker_ioport_write (void *opaque, uint32_t addr, uint32_t val) |
97 |
{ |
98 |
#if 0
|
99 |
speaker_data_on = (val >> 1) & 1;
|
100 |
pit_set_gate(pit, 2, val & 1);
|
101 |
#endif
|
102 |
} |
103 |
|
104 |
static uint32_t speaker_ioport_read (void *opaque, uint32_t addr) |
105 |
{ |
106 |
#if 0
|
107 |
int out;
|
108 |
out = pit_get_out(pit, 2, qemu_get_clock(vm_clock));
|
109 |
dummy_refresh_clock ^= 1;
|
110 |
return (speaker_data_on << 1) | pit_get_gate(pit, 2) | (out << 5) |
|
111 |
(dummy_refresh_clock << 4);
|
112 |
#endif
|
113 |
return 0; |
114 |
} |
115 |
|
116 |
/* PCI intack register */
|
117 |
/* Read-only register (?) */
|
118 |
static void _PPC_intack_write (void *opaque, |
119 |
target_phys_addr_t addr, uint32_t value) |
120 |
{ |
121 |
#if 0
|
122 |
printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
|
123 |
value);
|
124 |
#endif
|
125 |
} |
126 |
|
127 |
static inline uint32_t _PPC_intack_read(target_phys_addr_t addr) |
128 |
{ |
129 |
uint32_t retval = 0;
|
130 |
|
131 |
if ((addr & 0xf) == 0) |
132 |
retval = pic_intack_read(isa_pic); |
133 |
#if 0
|
134 |
printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
|
135 |
retval);
|
136 |
#endif
|
137 |
|
138 |
return retval;
|
139 |
} |
140 |
|
141 |
static uint32_t PPC_intack_readb (void *opaque, target_phys_addr_t addr) |
142 |
{ |
143 |
return _PPC_intack_read(addr);
|
144 |
} |
145 |
|
146 |
static uint32_t PPC_intack_readw (void *opaque, target_phys_addr_t addr) |
147 |
{ |
148 |
#ifdef TARGET_WORDS_BIGENDIAN
|
149 |
return bswap16(_PPC_intack_read(addr));
|
150 |
#else
|
151 |
return _PPC_intack_read(addr);
|
152 |
#endif
|
153 |
} |
154 |
|
155 |
static uint32_t PPC_intack_readl (void *opaque, target_phys_addr_t addr) |
156 |
{ |
157 |
#ifdef TARGET_WORDS_BIGENDIAN
|
158 |
return bswap32(_PPC_intack_read(addr));
|
159 |
#else
|
160 |
return _PPC_intack_read(addr);
|
161 |
#endif
|
162 |
} |
163 |
|
164 |
static CPUWriteMemoryFunc * const PPC_intack_write[] = { |
165 |
&_PPC_intack_write, |
166 |
&_PPC_intack_write, |
167 |
&_PPC_intack_write, |
168 |
}; |
169 |
|
170 |
static CPUReadMemoryFunc * const PPC_intack_read[] = { |
171 |
&PPC_intack_readb, |
172 |
&PPC_intack_readw, |
173 |
&PPC_intack_readl, |
174 |
}; |
175 |
|
176 |
/* PowerPC control and status registers */
|
177 |
#if 0 // Not used
|
178 |
static struct {
|
179 |
/* IDs */
|
180 |
uint32_t veni_devi;
|
181 |
uint32_t revi;
|
182 |
/* Control and status */
|
183 |
uint32_t gcsr;
|
184 |
uint32_t xcfr;
|
185 |
uint32_t ct32;
|
186 |
uint32_t mcsr;
|
187 |
/* General purpose registers */
|
188 |
uint32_t gprg[6];
|
189 |
/* Exceptions */
|
190 |
uint32_t feen;
|
191 |
uint32_t fest;
|
192 |
uint32_t fema;
|
193 |
uint32_t fecl;
|
194 |
uint32_t eeen;
|
195 |
uint32_t eest;
|
196 |
uint32_t eecl;
|
197 |
uint32_t eeint;
|
198 |
uint32_t eemck0;
|
199 |
uint32_t eemck1;
|
200 |
/* Error diagnostic */
|
201 |
} XCSR;
|
202 |
|
203 |
static void PPC_XCSR_writeb (void *opaque,
|
204 |
target_phys_addr_t addr, uint32_t value)
|
205 |
{
|
206 |
printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
|
207 |
value);
|
208 |
}
|
209 |
|
210 |
static void PPC_XCSR_writew (void *opaque,
|
211 |
target_phys_addr_t addr, uint32_t value)
|
212 |
{
|
213 |
#ifdef TARGET_WORDS_BIGENDIAN
|
214 |
value = bswap16(value);
|
215 |
#endif
|
216 |
printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr, |
217 |
value); |
218 |
} |
219 |
|
220 |
static void PPC_XCSR_writel (void *opaque, |
221 |
target_phys_addr_t addr, uint32_t value) |
222 |
{ |
223 |
#ifdef TARGET_WORDS_BIGENDIAN
|
224 |
value = bswap32(value); |
225 |
#endif
|
226 |
printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr, |
227 |
value); |
228 |
} |
229 |
|
230 |
static uint32_t PPC_XCSR_readb (void *opaque, target_phys_addr_t addr) |
231 |
{ |
232 |
uint32_t retval = 0;
|
233 |
|
234 |
printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr, |
235 |
retval); |
236 |
|
237 |
return retval;
|
238 |
} |
239 |
|
240 |
static uint32_t PPC_XCSR_readw (void *opaque, target_phys_addr_t addr) |
241 |
{ |
242 |
uint32_t retval = 0;
|
243 |
|
244 |
printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr, |
245 |
retval); |
246 |
#ifdef TARGET_WORDS_BIGENDIAN
|
247 |
retval = bswap16(retval); |
248 |
#endif
|
249 |
|
250 |
return retval;
|
251 |
} |
252 |
|
253 |
static uint32_t PPC_XCSR_readl (void *opaque, target_phys_addr_t addr) |
254 |
{ |
255 |
uint32_t retval = 0;
|
256 |
|
257 |
printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr, |
258 |
retval); |
259 |
#ifdef TARGET_WORDS_BIGENDIAN
|
260 |
retval = bswap32(retval); |
261 |
#endif
|
262 |
|
263 |
return retval;
|
264 |
} |
265 |
|
266 |
static CPUWriteMemoryFunc * const PPC_XCSR_write[] = { |
267 |
&PPC_XCSR_writeb, |
268 |
&PPC_XCSR_writew, |
269 |
&PPC_XCSR_writel, |
270 |
}; |
271 |
|
272 |
static CPUReadMemoryFunc * const PPC_XCSR_read[] = { |
273 |
&PPC_XCSR_readb, |
274 |
&PPC_XCSR_readw, |
275 |
&PPC_XCSR_readl, |
276 |
}; |
277 |
#endif
|
278 |
|
279 |
/* Fake super-io ports for PREP platform (Intel 82378ZB) */
|
280 |
typedef struct sysctrl_t { |
281 |
qemu_irq reset_irq; |
282 |
M48t59State *nvram; |
283 |
uint8_t state; |
284 |
uint8_t syscontrol; |
285 |
uint8_t fake_io[2];
|
286 |
int contiguous_map;
|
287 |
int endian;
|
288 |
} sysctrl_t; |
289 |
|
290 |
enum {
|
291 |
STATE_HARDFILE = 0x01,
|
292 |
}; |
293 |
|
294 |
static sysctrl_t *sysctrl;
|
295 |
|
296 |
static void PREP_io_write (void *opaque, uint32_t addr, uint32_t val) |
297 |
{ |
298 |
sysctrl_t *sysctrl = opaque; |
299 |
|
300 |
PPC_IO_DPRINTF("0x%08" PRIx32 " => 0x%02" PRIx32 "\n", addr - PPC_IO_BASE, |
301 |
val); |
302 |
sysctrl->fake_io[addr - 0x0398] = val;
|
303 |
} |
304 |
|
305 |
static uint32_t PREP_io_read (void *opaque, uint32_t addr) |
306 |
{ |
307 |
sysctrl_t *sysctrl = opaque; |
308 |
|
309 |
PPC_IO_DPRINTF("0x%08" PRIx32 " <= 0x%02" PRIx32 "\n", addr - PPC_IO_BASE, |
310 |
sysctrl->fake_io[addr - 0x0398]);
|
311 |
return sysctrl->fake_io[addr - 0x0398]; |
312 |
} |
313 |
|
314 |
static void PREP_io_800_writeb (void *opaque, uint32_t addr, uint32_t val) |
315 |
{ |
316 |
sysctrl_t *sysctrl = opaque; |
317 |
|
318 |
PPC_IO_DPRINTF("0x%08" PRIx32 " => 0x%02" PRIx32 "\n", |
319 |
addr - PPC_IO_BASE, val); |
320 |
switch (addr) {
|
321 |
case 0x0092: |
322 |
/* Special port 92 */
|
323 |
/* Check soft reset asked */
|
324 |
if (val & 0x01) { |
325 |
qemu_irq_raise(sysctrl->reset_irq); |
326 |
} else {
|
327 |
qemu_irq_lower(sysctrl->reset_irq); |
328 |
} |
329 |
/* Check LE mode */
|
330 |
if (val & 0x02) { |
331 |
sysctrl->endian = 1;
|
332 |
} else {
|
333 |
sysctrl->endian = 0;
|
334 |
} |
335 |
break;
|
336 |
case 0x0800: |
337 |
/* Motorola CPU configuration register : read-only */
|
338 |
break;
|
339 |
case 0x0802: |
340 |
/* Motorola base module feature register : read-only */
|
341 |
break;
|
342 |
case 0x0803: |
343 |
/* Motorola base module status register : read-only */
|
344 |
break;
|
345 |
case 0x0808: |
346 |
/* Hardfile light register */
|
347 |
if (val & 1) |
348 |
sysctrl->state |= STATE_HARDFILE; |
349 |
else
|
350 |
sysctrl->state &= ~STATE_HARDFILE; |
351 |
break;
|
352 |
case 0x0810: |
353 |
/* Password protect 1 register */
|
354 |
if (sysctrl->nvram != NULL) |
355 |
m48t59_toggle_lock(sysctrl->nvram, 1);
|
356 |
break;
|
357 |
case 0x0812: |
358 |
/* Password protect 2 register */
|
359 |
if (sysctrl->nvram != NULL) |
360 |
m48t59_toggle_lock(sysctrl->nvram, 2);
|
361 |
break;
|
362 |
case 0x0814: |
363 |
/* L2 invalidate register */
|
364 |
// tlb_flush(first_cpu, 1);
|
365 |
break;
|
366 |
case 0x081C: |
367 |
/* system control register */
|
368 |
sysctrl->syscontrol = val & 0x0F;
|
369 |
break;
|
370 |
case 0x0850: |
371 |
/* I/O map type register */
|
372 |
sysctrl->contiguous_map = val & 0x01;
|
373 |
break;
|
374 |
default:
|
375 |
printf("ERROR: unaffected IO port write: %04" PRIx32
|
376 |
" => %02" PRIx32"\n", addr, val); |
377 |
break;
|
378 |
} |
379 |
} |
380 |
|
381 |
static uint32_t PREP_io_800_readb (void *opaque, uint32_t addr) |
382 |
{ |
383 |
sysctrl_t *sysctrl = opaque; |
384 |
uint32_t retval = 0xFF;
|
385 |
|
386 |
switch (addr) {
|
387 |
case 0x0092: |
388 |
/* Special port 92 */
|
389 |
retval = 0x00;
|
390 |
break;
|
391 |
case 0x0800: |
392 |
/* Motorola CPU configuration register */
|
393 |
retval = 0xEF; /* MPC750 */ |
394 |
break;
|
395 |
case 0x0802: |
396 |
/* Motorola Base module feature register */
|
397 |
retval = 0xAD; /* No ESCC, PMC slot neither ethernet */ |
398 |
break;
|
399 |
case 0x0803: |
400 |
/* Motorola base module status register */
|
401 |
retval = 0xE0; /* Standard MPC750 */ |
402 |
break;
|
403 |
case 0x080C: |
404 |
/* Equipment present register:
|
405 |
* no L2 cache
|
406 |
* no upgrade processor
|
407 |
* no cards in PCI slots
|
408 |
* SCSI fuse is bad
|
409 |
*/
|
410 |
retval = 0x3C;
|
411 |
break;
|
412 |
case 0x0810: |
413 |
/* Motorola base module extended feature register */
|
414 |
retval = 0x39; /* No USB, CF and PCI bridge. NVRAM present */ |
415 |
break;
|
416 |
case 0x0814: |
417 |
/* L2 invalidate: don't care */
|
418 |
break;
|
419 |
case 0x0818: |
420 |
/* Keylock */
|
421 |
retval = 0x00;
|
422 |
break;
|
423 |
case 0x081C: |
424 |
/* system control register
|
425 |
* 7 - 6 / 1 - 0: L2 cache enable
|
426 |
*/
|
427 |
retval = sysctrl->syscontrol; |
428 |
break;
|
429 |
case 0x0823: |
430 |
/* */
|
431 |
retval = 0x03; /* no L2 cache */ |
432 |
break;
|
433 |
case 0x0850: |
434 |
/* I/O map type register */
|
435 |
retval = sysctrl->contiguous_map; |
436 |
break;
|
437 |
default:
|
438 |
printf("ERROR: unaffected IO port: %04" PRIx32 " read\n", addr); |
439 |
break;
|
440 |
} |
441 |
PPC_IO_DPRINTF("0x%08" PRIx32 " <= 0x%02" PRIx32 "\n", |
442 |
addr - PPC_IO_BASE, retval); |
443 |
|
444 |
return retval;
|
445 |
} |
446 |
|
447 |
static inline target_phys_addr_t prep_IO_address(sysctrl_t *sysctrl, |
448 |
target_phys_addr_t addr) |
449 |
{ |
450 |
if (sysctrl->contiguous_map == 0) { |
451 |
/* 64 KB contiguous space for IOs */
|
452 |
addr &= 0xFFFF;
|
453 |
} else {
|
454 |
/* 8 MB non-contiguous space for IOs */
|
455 |
addr = (addr & 0x1F) | ((addr & 0x007FFF000) >> 7); |
456 |
} |
457 |
|
458 |
return addr;
|
459 |
} |
460 |
|
461 |
static void PPC_prep_io_writeb (void *opaque, target_phys_addr_t addr, |
462 |
uint32_t value) |
463 |
{ |
464 |
sysctrl_t *sysctrl = opaque; |
465 |
|
466 |
addr = prep_IO_address(sysctrl, addr); |
467 |
cpu_outb(addr, value); |
468 |
} |
469 |
|
470 |
static uint32_t PPC_prep_io_readb (void *opaque, target_phys_addr_t addr) |
471 |
{ |
472 |
sysctrl_t *sysctrl = opaque; |
473 |
uint32_t ret; |
474 |
|
475 |
addr = prep_IO_address(sysctrl, addr); |
476 |
ret = cpu_inb(addr); |
477 |
|
478 |
return ret;
|
479 |
} |
480 |
|
481 |
static void PPC_prep_io_writew (void *opaque, target_phys_addr_t addr, |
482 |
uint32_t value) |
483 |
{ |
484 |
sysctrl_t *sysctrl = opaque; |
485 |
|
486 |
addr = prep_IO_address(sysctrl, addr); |
487 |
#ifdef TARGET_WORDS_BIGENDIAN
|
488 |
value = bswap16(value); |
489 |
#endif
|
490 |
PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value); |
491 |
cpu_outw(addr, value); |
492 |
} |
493 |
|
494 |
static uint32_t PPC_prep_io_readw (void *opaque, target_phys_addr_t addr) |
495 |
{ |
496 |
sysctrl_t *sysctrl = opaque; |
497 |
uint32_t ret; |
498 |
|
499 |
addr = prep_IO_address(sysctrl, addr); |
500 |
ret = cpu_inw(addr); |
501 |
#ifdef TARGET_WORDS_BIGENDIAN
|
502 |
ret = bswap16(ret); |
503 |
#endif
|
504 |
PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret); |
505 |
|
506 |
return ret;
|
507 |
} |
508 |
|
509 |
static void PPC_prep_io_writel (void *opaque, target_phys_addr_t addr, |
510 |
uint32_t value) |
511 |
{ |
512 |
sysctrl_t *sysctrl = opaque; |
513 |
|
514 |
addr = prep_IO_address(sysctrl, addr); |
515 |
#ifdef TARGET_WORDS_BIGENDIAN
|
516 |
value = bswap32(value); |
517 |
#endif
|
518 |
PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value); |
519 |
cpu_outl(addr, value); |
520 |
} |
521 |
|
522 |
static uint32_t PPC_prep_io_readl (void *opaque, target_phys_addr_t addr) |
523 |
{ |
524 |
sysctrl_t *sysctrl = opaque; |
525 |
uint32_t ret; |
526 |
|
527 |
addr = prep_IO_address(sysctrl, addr); |
528 |
ret = cpu_inl(addr); |
529 |
#ifdef TARGET_WORDS_BIGENDIAN
|
530 |
ret = bswap32(ret); |
531 |
#endif
|
532 |
PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret); |
533 |
|
534 |
return ret;
|
535 |
} |
536 |
|
537 |
static CPUWriteMemoryFunc * const PPC_prep_io_write[] = { |
538 |
&PPC_prep_io_writeb, |
539 |
&PPC_prep_io_writew, |
540 |
&PPC_prep_io_writel, |
541 |
}; |
542 |
|
543 |
static CPUReadMemoryFunc * const PPC_prep_io_read[] = { |
544 |
&PPC_prep_io_readb, |
545 |
&PPC_prep_io_readw, |
546 |
&PPC_prep_io_readl, |
547 |
}; |
548 |
|
549 |
#define NVRAM_SIZE 0x2000 |
550 |
|
551 |
static void cpu_request_exit(void *opaque, int irq, int level) |
552 |
{ |
553 |
CPUState *env = cpu_single_env; |
554 |
|
555 |
if (env && level) {
|
556 |
cpu_exit(env); |
557 |
} |
558 |
} |
559 |
|
560 |
/* PowerPC PREP hardware initialisation */
|
561 |
static void ppc_prep_init (ram_addr_t ram_size, |
562 |
const char *boot_device, |
563 |
const char *kernel_filename, |
564 |
const char *kernel_cmdline, |
565 |
const char *initrd_filename, |
566 |
const char *cpu_model) |
567 |
{ |
568 |
CPUState *env = NULL;
|
569 |
char *filename;
|
570 |
nvram_t nvram; |
571 |
M48t59State *m48t59; |
572 |
int PPC_io_memory;
|
573 |
int linux_boot, i, nb_nics1, bios_size;
|
574 |
ram_addr_t ram_offset, bios_offset; |
575 |
uint32_t kernel_base, initrd_base; |
576 |
long kernel_size, initrd_size;
|
577 |
PCIBus *pci_bus; |
578 |
qemu_irq *i8259; |
579 |
qemu_irq *cpu_exit_irq; |
580 |
int ppc_boot_device;
|
581 |
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; |
582 |
DriveInfo *fd[MAX_FD]; |
583 |
|
584 |
sysctrl = qemu_mallocz(sizeof(sysctrl_t));
|
585 |
|
586 |
linux_boot = (kernel_filename != NULL);
|
587 |
|
588 |
/* init CPUs */
|
589 |
if (cpu_model == NULL) |
590 |
cpu_model = "602";
|
591 |
for (i = 0; i < smp_cpus; i++) { |
592 |
env = cpu_init(cpu_model); |
593 |
if (!env) {
|
594 |
fprintf(stderr, "Unable to find PowerPC CPU definition\n");
|
595 |
exit(1);
|
596 |
} |
597 |
if (env->flags & POWERPC_FLAG_RTC_CLK) {
|
598 |
/* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */
|
599 |
cpu_ppc_tb_init(env, 7812500UL);
|
600 |
} else {
|
601 |
/* Set time-base frequency to 100 Mhz */
|
602 |
cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); |
603 |
} |
604 |
qemu_register_reset((QEMUResetHandler*)&cpu_reset, env); |
605 |
} |
606 |
|
607 |
/* allocate RAM */
|
608 |
ram_offset = qemu_ram_alloc(NULL, "ppc_prep.ram", ram_size); |
609 |
cpu_register_physical_memory(0, ram_size, ram_offset);
|
610 |
|
611 |
/* allocate and load BIOS */
|
612 |
bios_offset = qemu_ram_alloc(NULL, "ppc_prep.bios", BIOS_SIZE); |
613 |
if (bios_name == NULL) |
614 |
bios_name = BIOS_FILENAME; |
615 |
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); |
616 |
if (filename) {
|
617 |
bios_size = get_image_size(filename); |
618 |
} else {
|
619 |
bios_size = -1;
|
620 |
} |
621 |
if (bios_size > 0 && bios_size <= BIOS_SIZE) { |
622 |
target_phys_addr_t bios_addr; |
623 |
bios_size = (bios_size + 0xfff) & ~0xfff; |
624 |
bios_addr = (uint32_t)(-bios_size); |
625 |
cpu_register_physical_memory(bios_addr, bios_size, |
626 |
bios_offset | IO_MEM_ROM); |
627 |
bios_size = load_image_targphys(filename, bios_addr, bios_size); |
628 |
} |
629 |
if (bios_size < 0 || bios_size > BIOS_SIZE) { |
630 |
hw_error("qemu: could not load PPC PREP bios '%s'\n", bios_name);
|
631 |
} |
632 |
if (filename) {
|
633 |
qemu_free(filename); |
634 |
} |
635 |
if (env->nip < 0xFFF80000 && bios_size < 0x00100000) { |
636 |
hw_error("PowerPC 601 / 620 / 970 need a 1MB BIOS\n");
|
637 |
} |
638 |
|
639 |
if (linux_boot) {
|
640 |
kernel_base = KERNEL_LOAD_ADDR; |
641 |
/* now we can load the kernel */
|
642 |
kernel_size = load_image_targphys(kernel_filename, kernel_base, |
643 |
ram_size - kernel_base); |
644 |
if (kernel_size < 0) { |
645 |
hw_error("qemu: could not load kernel '%s'\n", kernel_filename);
|
646 |
exit(1);
|
647 |
} |
648 |
/* load initrd */
|
649 |
if (initrd_filename) {
|
650 |
initrd_base = INITRD_LOAD_ADDR; |
651 |
initrd_size = load_image_targphys(initrd_filename, initrd_base, |
652 |
ram_size - initrd_base); |
653 |
if (initrd_size < 0) { |
654 |
hw_error("qemu: could not load initial ram disk '%s'\n",
|
655 |
initrd_filename); |
656 |
} |
657 |
} else {
|
658 |
initrd_base = 0;
|
659 |
initrd_size = 0;
|
660 |
} |
661 |
ppc_boot_device = 'm';
|
662 |
} else {
|
663 |
kernel_base = 0;
|
664 |
kernel_size = 0;
|
665 |
initrd_base = 0;
|
666 |
initrd_size = 0;
|
667 |
ppc_boot_device = '\0';
|
668 |
/* For now, OHW cannot boot from the network. */
|
669 |
for (i = 0; boot_device[i] != '\0'; i++) { |
670 |
if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { |
671 |
ppc_boot_device = boot_device[i]; |
672 |
break;
|
673 |
} |
674 |
} |
675 |
if (ppc_boot_device == '\0') { |
676 |
fprintf(stderr, "No valid boot device for Mac99 machine\n");
|
677 |
exit(1);
|
678 |
} |
679 |
} |
680 |
|
681 |
isa_mem_base = 0xc0000000;
|
682 |
if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
|
683 |
hw_error("Only 6xx bus is supported on PREP machine\n");
|
684 |
} |
685 |
i8259 = i8259_init(first_cpu->irq_inputs[PPC6xx_INPUT_INT]); |
686 |
pci_bus = pci_prep_init(i8259); |
687 |
/* Hmm, prep has no pci-isa bridge ??? */
|
688 |
isa_bus_new(NULL);
|
689 |
isa_bus_irqs(i8259); |
690 |
// pci_bus = i440fx_init();
|
691 |
/* Register 8 MB of ISA IO space (needed for non-contiguous map) */
|
692 |
PPC_io_memory = cpu_register_io_memory(PPC_prep_io_read, |
693 |
PPC_prep_io_write, sysctrl); |
694 |
cpu_register_physical_memory(0x80000000, 0x00800000, PPC_io_memory); |
695 |
|
696 |
/* init basic PC hardware */
|
697 |
pci_vga_init(pci_bus, 0, 0); |
698 |
// openpic = openpic_init(0x00000000, 0xF0000000, 1);
|
699 |
// pit = pit_init(0x40, i8259[0]);
|
700 |
rtc_init(2000, NULL); |
701 |
|
702 |
if (serial_hds[0]) |
703 |
serial_isa_init(0, serial_hds[0]); |
704 |
nb_nics1 = nb_nics; |
705 |
if (nb_nics1 > NE2000_NB_MAX)
|
706 |
nb_nics1 = NE2000_NB_MAX; |
707 |
for(i = 0; i < nb_nics1; i++) { |
708 |
if (nd_table[i].model == NULL) { |
709 |
nd_table[i].model = qemu_strdup("ne2k_isa");
|
710 |
} |
711 |
if (strcmp(nd_table[i].model, "ne2k_isa") == 0) { |
712 |
isa_ne2000_init(ne2000_io[i], ne2000_irq[i], &nd_table[i]); |
713 |
} else {
|
714 |
pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL); |
715 |
} |
716 |
} |
717 |
|
718 |
if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
|
719 |
fprintf(stderr, "qemu: too many IDE bus\n");
|
720 |
exit(1);
|
721 |
} |
722 |
|
723 |
for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) { |
724 |
hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); |
725 |
} |
726 |
|
727 |
for(i = 0; i < MAX_IDE_BUS; i++) { |
728 |
isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i], |
729 |
hd[2 * i],
|
730 |
hd[2 * i + 1]); |
731 |
} |
732 |
isa_create_simple("i8042");
|
733 |
|
734 |
cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1); |
735 |
DMA_init(1, cpu_exit_irq);
|
736 |
|
737 |
// SB16_init();
|
738 |
|
739 |
for(i = 0; i < MAX_FD; i++) { |
740 |
fd[i] = drive_get(IF_FLOPPY, 0, i);
|
741 |
} |
742 |
fdctrl_init_isa(fd); |
743 |
|
744 |
/* Register speaker port */
|
745 |
register_ioport_read(0x61, 1, 1, speaker_ioport_read, NULL); |
746 |
register_ioport_write(0x61, 1, 1, speaker_ioport_write, NULL); |
747 |
/* Register fake IO ports for PREP */
|
748 |
sysctrl->reset_irq = first_cpu->irq_inputs[PPC6xx_INPUT_HRESET]; |
749 |
register_ioport_read(0x398, 2, 1, &PREP_io_read, sysctrl); |
750 |
register_ioport_write(0x398, 2, 1, &PREP_io_write, sysctrl); |
751 |
/* System control ports */
|
752 |
register_ioport_read(0x0092, 0x01, 1, &PREP_io_800_readb, sysctrl); |
753 |
register_ioport_write(0x0092, 0x01, 1, &PREP_io_800_writeb, sysctrl); |
754 |
register_ioport_read(0x0800, 0x52, 1, &PREP_io_800_readb, sysctrl); |
755 |
register_ioport_write(0x0800, 0x52, 1, &PREP_io_800_writeb, sysctrl); |
756 |
/* PCI intack location */
|
757 |
PPC_io_memory = cpu_register_io_memory(PPC_intack_read, |
758 |
PPC_intack_write, NULL);
|
759 |
cpu_register_physical_memory(0xBFFFFFF0, 0x4, PPC_io_memory); |
760 |
/* PowerPC control and status register group */
|
761 |
#if 0
|
762 |
PPC_io_memory = cpu_register_io_memory(PPC_XCSR_read, PPC_XCSR_write,
|
763 |
NULL);
|
764 |
cpu_register_physical_memory(0xFEFF0000, 0x1000, PPC_io_memory);
|
765 |
#endif
|
766 |
|
767 |
if (usb_enabled) {
|
768 |
usb_ohci_init_pci(pci_bus, -1);
|
769 |
} |
770 |
|
771 |
m48t59 = m48t59_init(i8259[8], 0, 0x0074, NVRAM_SIZE, 59); |
772 |
if (m48t59 == NULL) |
773 |
return;
|
774 |
sysctrl->nvram = m48t59; |
775 |
|
776 |
/* Initialise NVRAM */
|
777 |
nvram.opaque = m48t59; |
778 |
nvram.read_fn = &m48t59_read; |
779 |
nvram.write_fn = &m48t59_write; |
780 |
PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "PREP", ram_size, ppc_boot_device,
|
781 |
kernel_base, kernel_size, |
782 |
kernel_cmdline, |
783 |
initrd_base, initrd_size, |
784 |
/* XXX: need an option to load a NVRAM image */
|
785 |
0,
|
786 |
graphic_width, graphic_height, graphic_depth); |
787 |
|
788 |
/* Special port to get debug messages from Open-Firmware */
|
789 |
register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL); |
790 |
} |
791 |
|
792 |
static QEMUMachine prep_machine = {
|
793 |
.name = "prep",
|
794 |
.desc = "PowerPC PREP platform",
|
795 |
.init = ppc_prep_init, |
796 |
.max_cpus = MAX_CPUS, |
797 |
}; |
798 |
|
799 |
static void prep_machine_init(void) |
800 |
{ |
801 |
qemu_register_machine(&prep_machine); |
802 |
} |
803 |
|
804 |
machine_init(prep_machine_init); |