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Resurrect the safe part of r5274
[qemu/mini2440.git] / hw / pxa2xx.c
blob2c838e5e9d5924c119a96d9aef0117aab2cbb36d
1 /*
2 * Intel XScale PXA255/270 processor support.
3 *
4 * Copyright (c) 2006 Openedhand Ltd.
5 * Written by Andrzej Zaborowski <balrog@zabor.org>
6 *
7 * This code is licenced under the GPL.
8 */
9
10 #include "hw.h"
11 #include "pxa.h"
12 #include "sysemu.h"
13 #include "pc.h"
14 #include "i2c.h"
15 #include "qemu-timer.h"
16 #include "qemu-char.h"
17
18 static struct {
19 target_phys_addr_t io_base;
20 int irqn;
21 } pxa255_serial[] = {
22 { 0x40100000, PXA2XX_PIC_FFUART },
23 { 0x40200000, PXA2XX_PIC_BTUART },
24 { 0x40700000, PXA2XX_PIC_STUART },
25 { 0x41600000, PXA25X_PIC_HWUART },
26 { 0, 0 }
27 }, pxa270_serial[] = {
28 { 0x40100000, PXA2XX_PIC_FFUART },
29 { 0x40200000, PXA2XX_PIC_BTUART },
30 { 0x40700000, PXA2XX_PIC_STUART },
31 { 0, 0 }
32 };
33
34 typedef struct PXASSPDef {
35 target_phys_addr_t io_base;
36 int irqn;
37 } PXASSPDef;
38
39 #if 0
40 static PXASSPDef pxa250_ssp[] = {
41 { 0x41000000, PXA2XX_PIC_SSP },
42 { 0, 0 }
43 };
44 #endif
45
46 static PXASSPDef pxa255_ssp[] = {
47 { 0x41000000, PXA2XX_PIC_SSP },
48 { 0x41400000, PXA25X_PIC_NSSP },
49 { 0, 0 }
50 };
51
52 #if 0
53 static PXASSPDef pxa26x_ssp[] = {
54 { 0x41000000, PXA2XX_PIC_SSP },
55 { 0x41400000, PXA25X_PIC_NSSP },
56 { 0x41500000, PXA26X_PIC_ASSP },
57 { 0, 0 }
58 };
59 #endif
60
61 static PXASSPDef pxa27x_ssp[] = {
62 { 0x41000000, PXA2XX_PIC_SSP },
63 { 0x41700000, PXA27X_PIC_SSP2 },
64 { 0x41900000, PXA2XX_PIC_SSP3 },
65 { 0, 0 }
66 };
67
68 #define PMCR 0x00 /* Power Manager Control register */
69 #define PSSR 0x04 /* Power Manager Sleep Status register */
70 #define PSPR 0x08 /* Power Manager Scratch-Pad register */
71 #define PWER 0x0c /* Power Manager Wake-Up Enable register */
72 #define PRER 0x10 /* Power Manager Rising-Edge Detect Enable register */
73 #define PFER 0x14 /* Power Manager Falling-Edge Detect Enable register */
74 #define PEDR 0x18 /* Power Manager Edge-Detect Status register */
75 #define PCFR 0x1c /* Power Manager General Configuration register */
76 #define PGSR0 0x20 /* Power Manager GPIO Sleep-State register 0 */
77 #define PGSR1 0x24 /* Power Manager GPIO Sleep-State register 1 */
78 #define PGSR2 0x28 /* Power Manager GPIO Sleep-State register 2 */
79 #define PGSR3 0x2c /* Power Manager GPIO Sleep-State register 3 */
80 #define RCSR 0x30 /* Reset Controller Status register */
81 #define PSLR 0x34 /* Power Manager Sleep Configuration register */
82 #define PTSR 0x38 /* Power Manager Standby Configuration register */
83 #define PVCR 0x40 /* Power Manager Voltage Change Control register */
84 #define PUCR 0x4c /* Power Manager USIM Card Control/Status register */
85 #define PKWR 0x50 /* Power Manager Keyboard Wake-Up Enable register */
86 #define PKSR 0x54 /* Power Manager Keyboard Level-Detect Status */
87 #define PCMD0 0x80 /* Power Manager I2C Command register File 0 */
88 #define PCMD31 0xfc /* Power Manager I2C Command register File 31 */
89
90 static uint32_t pxa2xx_pm_read(void *opaque, target_phys_addr_t addr)
91 {
92 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
93 addr -= s->pm_base;
94
95 switch (addr) {
96 case PMCR ... PCMD31:
97 if (addr & 3)
98 goto fail;
99
100 return s->pm_regs[addr >> 2];
101 default:
102 fail:
103 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
104 break;
105 }
106 return 0;
107 }
108
109 static void pxa2xx_pm_write(void *opaque, target_phys_addr_t addr,
110 uint32_t value)
111 {
112 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
113 addr -= s->pm_base;
114
115 switch (addr) {
116 case PMCR:
117 s->pm_regs[addr >> 2] &= 0x15 & ~(value & 0x2a);
118 s->pm_regs[addr >> 2] |= value & 0x15;
119 break;
120
121 case PSSR: /* Read-clean registers */
122 case RCSR:
123 case PKSR:
124 s->pm_regs[addr >> 2] &= ~value;
125 break;
126
127 default: /* Read-write registers */
128 if (addr >= PMCR && addr <= PCMD31 && !(addr & 3)) {
129 s->pm_regs[addr >> 2] = value;
130 break;
131 }
132
133 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
134 break;
135 }
136 }
137
138 static CPUReadMemoryFunc *pxa2xx_pm_readfn[] = {
139 pxa2xx_pm_read,
140 pxa2xx_pm_read,
141 pxa2xx_pm_read,
142 };
143
144 static CPUWriteMemoryFunc *pxa2xx_pm_writefn[] = {
145 pxa2xx_pm_write,
146 pxa2xx_pm_write,
147 pxa2xx_pm_write,
148 };
149
150 static void pxa2xx_pm_save(QEMUFile *f, void *opaque)
151 {
152 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
153 int i;
154
155 for (i = 0; i < 0x40; i ++)
156 qemu_put_be32s(f, &s->pm_regs[i]);
157 }
158
159 static int pxa2xx_pm_load(QEMUFile *f, void *opaque, int version_id)
160 {
161 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
162 int i;
163
164 for (i = 0; i < 0x40; i ++)
165 qemu_get_be32s(f, &s->pm_regs[i]);
166
167 return 0;
168 }
169
170 #define CCCR 0x00 /* Core Clock Configuration register */
171 #define CKEN 0x04 /* Clock Enable register */
172 #define OSCC 0x08 /* Oscillator Configuration register */
173 #define CCSR 0x0c /* Core Clock Status register */
174
175 static uint32_t pxa2xx_cm_read(void *opaque, target_phys_addr_t addr)
176 {
177 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
178 addr -= s->cm_base;
179
180 switch (addr) {
181 case CCCR:
182 case CKEN:
183 case OSCC:
184 return s->cm_regs[addr >> 2];
185
186 case CCSR:
187 return s->cm_regs[CCCR >> 2] | (3 << 28);
188
189 default:
190 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
191 break;
192 }
193 return 0;
194 }
195
196 static void pxa2xx_cm_write(void *opaque, target_phys_addr_t addr,
197 uint32_t value)
198 {
199 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
200 addr -= s->cm_base;
201
202 switch (addr) {
203 case CCCR:
204 case CKEN:
205 s->cm_regs[addr >> 2] = value;
206 break;
207
208 case OSCC:
209 s->cm_regs[addr >> 2] &= ~0x6c;
210 s->cm_regs[addr >> 2] |= value & 0x6e;
211 if ((value >> 1) & 1) /* OON */
212 s->cm_regs[addr >> 2] |= 1 << 0; /* Oscillator is now stable */
213 break;
214
215 default:
216 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
217 break;
218 }
219 }
220
221 static CPUReadMemoryFunc *pxa2xx_cm_readfn[] = {
222 pxa2xx_cm_read,
223 pxa2xx_cm_read,
224 pxa2xx_cm_read,
225 };
226
227 static CPUWriteMemoryFunc *pxa2xx_cm_writefn[] = {
228 pxa2xx_cm_write,
229 pxa2xx_cm_write,
230 pxa2xx_cm_write,
231 };
232
233 static void pxa2xx_cm_save(QEMUFile *f, void *opaque)
234 {
235 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
236 int i;
237
238 for (i = 0; i < 4; i ++)
239 qemu_put_be32s(f, &s->cm_regs[i]);
240 qemu_put_be32s(f, &s->clkcfg);
241 qemu_put_be32s(f, &s->pmnc);
242 }
243
244 static int pxa2xx_cm_load(QEMUFile *f, void *opaque, int version_id)
245 {
246 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
247 int i;
248
249 for (i = 0; i < 4; i ++)
250 qemu_get_be32s(f, &s->cm_regs[i]);
251 qemu_get_be32s(f, &s->clkcfg);
252 qemu_get_be32s(f, &s->pmnc);
253
254 return 0;
255 }
256
257 static uint32_t pxa2xx_clkpwr_read(void *opaque, int op2, int reg, int crm)
258 {
259 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
260
261 switch (reg) {
262 case 6: /* Clock Configuration register */
263 return s->clkcfg;
264
265 case 7: /* Power Mode register */
266 return 0;
267
268 default:
269 printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
270 break;
271 }
272 return 0;
273 }
274
275 static void pxa2xx_clkpwr_write(void *opaque, int op2, int reg, int crm,
276 uint32_t value)
277 {
278 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
279 static const char *pwrmode[8] = {
280 "Normal", "Idle", "Deep-idle", "Standby",
281 "Sleep", "reserved (!)", "reserved (!)", "Deep-sleep",
282 };
283
284 switch (reg) {
285 case 6: /* Clock Configuration register */
286 s->clkcfg = value & 0xf;
287 if (value & 2)
288 printf("%s: CPU frequency change attempt\n", __FUNCTION__);
289 break;
290
291 case 7: /* Power Mode register */
292 if (value & 8)
293 printf("%s: CPU voltage change attempt\n", __FUNCTION__);
294 switch (value & 7) {
295 case 0:
296 /* Do nothing */
297 break;
298
299 case 1:
300 /* Idle */
301 if (!(s->cm_regs[CCCR >> 2] & (1 << 31))) { /* CPDIS */
302 cpu_interrupt(s->env, CPU_INTERRUPT_HALT);
303 break;
304 }
305 /* Fall through. */
306
307 case 2:
308 /* Deep-Idle */
309 cpu_interrupt(s->env, CPU_INTERRUPT_HALT);
310 s->pm_regs[RCSR >> 2] |= 0x8; /* Set GPR */
311 goto message;
312
313 case 3:
314 s->env->uncached_cpsr =
315 ARM_CPU_MODE_SVC | CPSR_A | CPSR_F | CPSR_I;
316 s->env->cp15.c1_sys = 0;
317 s->env->cp15.c1_coproc = 0;
318 s->env->cp15.c2_base0 = 0;
319 s->env->cp15.c3 = 0;
320 s->pm_regs[PSSR >> 2] |= 0x8; /* Set STS */
321 s->pm_regs[RCSR >> 2] |= 0x8; /* Set GPR */
322
323 /*
324 * The scratch-pad register is almost universally used
325 * for storing the return address on suspend. For the
326 * lack of a resuming bootloader, perform a jump
327 * directly to that address.
328 */
329 memset(s->env->regs, 0, 4 * 15);
330 s->env->regs[15] = s->pm_regs[PSPR >> 2];
331
332 #if 0
333 buffer = 0xe59ff000; /* ldr pc, [pc, #0] */
334 cpu_physical_memory_write(0, &buffer, 4);
335 buffer = s->pm_regs[PSPR >> 2];
336 cpu_physical_memory_write(8, &buffer, 4);
337 #endif
338
339 /* Suspend */
340 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HALT);
341
342 goto message;
343
344 default:
345 message:
346 printf("%s: machine entered %s mode\n", __FUNCTION__,
347 pwrmode[value & 7]);
348 }
349 break;
350
351 default:
352 printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
353 break;
354 }
355 }
356
357 /* Performace Monitoring Registers */
358 #define CPPMNC 0 /* Performance Monitor Control register */
359 #define CPCCNT 1 /* Clock Counter register */
360 #define CPINTEN 4 /* Interrupt Enable register */
361 #define CPFLAG 5 /* Overflow Flag register */
362 #define CPEVTSEL 8 /* Event Selection register */
363
364 #define CPPMN0 0 /* Performance Count register 0 */
365 #define CPPMN1 1 /* Performance Count register 1 */
366 #define CPPMN2 2 /* Performance Count register 2 */
367 #define CPPMN3 3 /* Performance Count register 3 */
368
369 static uint32_t pxa2xx_perf_read(void *opaque, int op2, int reg, int crm)
370 {
371 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
372
373 switch (reg) {
374 case CPPMNC:
375 return s->pmnc;
376 case CPCCNT:
377 if (s->pmnc & 1)
378 return qemu_get_clock(vm_clock);
379 else
380 return 0;
381 case CPINTEN:
382 case CPFLAG:
383 case CPEVTSEL:
384 return 0;
385
386 default:
387 printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
388 break;
389 }
390 return 0;
391 }
392
393 static void pxa2xx_perf_write(void *opaque, int op2, int reg, int crm,
394 uint32_t value)
395 {
396 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
397
398 switch (reg) {
399 case CPPMNC:
400 s->pmnc = value;
401 break;
402
403 case CPCCNT:
404 case CPINTEN:
405 case CPFLAG:
406 case CPEVTSEL:
407 break;
408
409 default:
410 printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
411 break;
412 }
413 }
414
415 static uint32_t pxa2xx_cp14_read(void *opaque, int op2, int reg, int crm)
416 {
417 switch (crm) {
418 case 0:
419 return pxa2xx_clkpwr_read(opaque, op2, reg, crm);
420 case 1:
421 return pxa2xx_perf_read(opaque, op2, reg, crm);
422 case 2:
423 switch (reg) {
424 case CPPMN0:
425 case CPPMN1:
426 case CPPMN2:
427 case CPPMN3:
428 return 0;
429 }
430 /* Fall through */
431 default:
432 printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
433 break;
434 }
435 return 0;
436 }
437
438 static void pxa2xx_cp14_write(void *opaque, int op2, int reg, int crm,
439 uint32_t value)
440 {
441 switch (crm) {
442 case 0:
443 pxa2xx_clkpwr_write(opaque, op2, reg, crm, value);
444 break;
445 case 1:
446 pxa2xx_perf_write(opaque, op2, reg, crm, value);
447 break;
448 case 2:
449 switch (reg) {
450 case CPPMN0:
451 case CPPMN1:
452 case CPPMN2:
453 case CPPMN3:
454 return;
455 }
456 /* Fall through */
457 default:
458 printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
459 break;
460 }
461 }
462
463 #define MDCNFG 0x00 /* SDRAM Configuration register */
464 #define MDREFR 0x04 /* SDRAM Refresh Control register */
465 #define MSC0 0x08 /* Static Memory Control register 0 */
466 #define MSC1 0x0c /* Static Memory Control register 1 */
467 #define MSC2 0x10 /* Static Memory Control register 2 */
468 #define MECR 0x14 /* Expansion Memory Bus Config register */
469 #define SXCNFG 0x1c /* Synchronous Static Memory Config register */
470 #define MCMEM0 0x28 /* PC Card Memory Socket 0 Timing register */
471 #define MCMEM1 0x2c /* PC Card Memory Socket 1 Timing register */
472 #define MCATT0 0x30 /* PC Card Attribute Socket 0 register */
473 #define MCATT1 0x34 /* PC Card Attribute Socket 1 register */
474 #define MCIO0 0x38 /* PC Card I/O Socket 0 Timing register */
475 #define MCIO1 0x3c /* PC Card I/O Socket 1 Timing register */
476 #define MDMRS 0x40 /* SDRAM Mode Register Set Config register */
477 #define BOOT_DEF 0x44 /* Boot-time Default Configuration register */
478 #define ARB_CNTL 0x48 /* Arbiter Control register */
479 #define BSCNTR0 0x4c /* Memory Buffer Strength Control register 0 */
480 #define BSCNTR1 0x50 /* Memory Buffer Strength Control register 1 */
481 #define LCDBSCNTR 0x54 /* LCD Buffer Strength Control register */
482 #define MDMRSLP 0x58 /* Low Power SDRAM Mode Set Config register */
483 #define BSCNTR2 0x5c /* Memory Buffer Strength Control register 2 */
484 #define BSCNTR3 0x60 /* Memory Buffer Strength Control register 3 */
485 #define SA1110 0x64 /* SA-1110 Memory Compatibility register */
486
487 static uint32_t pxa2xx_mm_read(void *opaque, target_phys_addr_t addr)
488 {
489 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
490 addr -= s->mm_base;
491
492 switch (addr) {
493 case MDCNFG ... SA1110:
494 if ((addr & 3) == 0)
495 return s->mm_regs[addr >> 2];
496
497 default:
498 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
499 break;
500 }
501 return 0;
502 }
503
504 static void pxa2xx_mm_write(void *opaque, target_phys_addr_t addr,
505 uint32_t value)
506 {
507 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
508 addr -= s->mm_base;
509
510 switch (addr) {
511 case MDCNFG ... SA1110:
512 if ((addr & 3) == 0) {
513 s->mm_regs[addr >> 2] = value;
514 break;
515 }
516
517 default:
518 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
519 break;
520 }
521 }
522
523 static CPUReadMemoryFunc *pxa2xx_mm_readfn[] = {
524 pxa2xx_mm_read,
525 pxa2xx_mm_read,
526 pxa2xx_mm_read,
527 };
528
529 static CPUWriteMemoryFunc *pxa2xx_mm_writefn[] = {
530 pxa2xx_mm_write,
531 pxa2xx_mm_write,
532 pxa2xx_mm_write,
533 };
534
535 static void pxa2xx_mm_save(QEMUFile *f, void *opaque)
536 {
537 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
538 int i;
539
540 for (i = 0; i < 0x1a; i ++)
541 qemu_put_be32s(f, &s->mm_regs[i]);
542 }
543
544 static int pxa2xx_mm_load(QEMUFile *f, void *opaque, int version_id)
545 {
546 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
547 int i;
548
549 for (i = 0; i < 0x1a; i ++)
550 qemu_get_be32s(f, &s->mm_regs[i]);
551
552 return 0;
553 }
554
555 /* Synchronous Serial Ports */
556 struct pxa2xx_ssp_s {
557 target_phys_addr_t base;
558 qemu_irq irq;
559 int enable;
560
561 uint32_t sscr[2];
562 uint32_t sspsp;
563 uint32_t ssto;
564 uint32_t ssitr;
565 uint32_t sssr;
566 uint8_t sstsa;
567 uint8_t ssrsa;
568 uint8_t ssacd;
569
570 uint32_t rx_fifo[16];
571 int rx_level;
572 int rx_start;
573
574 uint32_t (*readfn)(void *opaque);
575 void (*writefn)(void *opaque, uint32_t value);
576 void *opaque;
577 };
578
579 #define SSCR0 0x00 /* SSP Control register 0 */
580 #define SSCR1 0x04 /* SSP Control register 1 */
581 #define SSSR 0x08 /* SSP Status register */
582 #define SSITR 0x0c /* SSP Interrupt Test register */
583 #define SSDR 0x10 /* SSP Data register */
584 #define SSTO 0x28 /* SSP Time-Out register */
585 #define SSPSP 0x2c /* SSP Programmable Serial Protocol register */
586 #define SSTSA 0x30 /* SSP TX Time Slot Active register */
587 #define SSRSA 0x34 /* SSP RX Time Slot Active register */
588 #define SSTSS 0x38 /* SSP Time Slot Status register */
589 #define SSACD 0x3c /* SSP Audio Clock Divider register */
590
591 /* Bitfields for above registers */
592 #define SSCR0_SPI(x) (((x) & 0x30) == 0x00)
593 #define SSCR0_SSP(x) (((x) & 0x30) == 0x10)
594 #define SSCR0_UWIRE(x) (((x) & 0x30) == 0x20)
595 #define SSCR0_PSP(x) (((x) & 0x30) == 0x30)
596 #define SSCR0_SSE (1 << 7)
597 #define SSCR0_RIM (1 << 22)
598 #define SSCR0_TIM (1 << 23)
599 #define SSCR0_MOD (1 << 31)
600 #define SSCR0_DSS(x) (((((x) >> 16) & 0x10) | ((x) & 0xf)) + 1)
601 #define SSCR1_RIE (1 << 0)
602 #define SSCR1_TIE (1 << 1)
603 #define SSCR1_LBM (1 << 2)
604 #define SSCR1_MWDS (1 << 5)
605 #define SSCR1_TFT(x) ((((x) >> 6) & 0xf) + 1)
606 #define SSCR1_RFT(x) ((((x) >> 10) & 0xf) + 1)
607 #define SSCR1_EFWR (1 << 14)
608 #define SSCR1_PINTE (1 << 18)
609 #define SSCR1_TINTE (1 << 19)
610 #define SSCR1_RSRE (1 << 20)
611 #define SSCR1_TSRE (1 << 21)
612 #define SSCR1_EBCEI (1 << 29)
613 #define SSITR_INT (7 << 5)
614 #define SSSR_TNF (1 << 2)
615 #define SSSR_RNE (1 << 3)
616 #define SSSR_TFS (1 << 5)
617 #define SSSR_RFS (1 << 6)
618 #define SSSR_ROR (1 << 7)
619 #define SSSR_PINT (1 << 18)
620 #define SSSR_TINT (1 << 19)
621 #define SSSR_EOC (1 << 20)
622 #define SSSR_TUR (1 << 21)
623 #define SSSR_BCE (1 << 23)
624 #define SSSR_RW 0x00bc0080
625
626 static void pxa2xx_ssp_int_update(struct pxa2xx_ssp_s *s)
627 {
628 int level = 0;
629
630 level |= s->ssitr & SSITR_INT;
631 level |= (s->sssr & SSSR_BCE) && (s->sscr[1] & SSCR1_EBCEI);
632 level |= (s->sssr & SSSR_TUR) && !(s->sscr[0] & SSCR0_TIM);
633 level |= (s->sssr & SSSR_EOC) && (s->sssr & (SSSR_TINT | SSSR_PINT));
634 level |= (s->sssr & SSSR_TINT) && (s->sscr[1] & SSCR1_TINTE);
635 level |= (s->sssr & SSSR_PINT) && (s->sscr[1] & SSCR1_PINTE);
636 level |= (s->sssr & SSSR_ROR) && !(s->sscr[0] & SSCR0_RIM);
637 level |= (s->sssr & SSSR_RFS) && (s->sscr[1] & SSCR1_RIE);
638 level |= (s->sssr & SSSR_TFS) && (s->sscr[1] & SSCR1_TIE);
639 qemu_set_irq(s->irq, !!level);
640 }
641
642 static void pxa2xx_ssp_fifo_update(struct pxa2xx_ssp_s *s)
643 {
644 s->sssr &= ~(0xf << 12); /* Clear RFL */
645 s->sssr &= ~(0xf << 8); /* Clear TFL */
646 s->sssr &= ~SSSR_TNF;
647 if (s->enable) {
648 s->sssr |= ((s->rx_level - 1) & 0xf) << 12;
649 if (s->rx_level >= SSCR1_RFT(s->sscr[1]))
650 s->sssr |= SSSR_RFS;
651 else
652 s->sssr &= ~SSSR_RFS;
653 if (0 <= SSCR1_TFT(s->sscr[1]))
654 s->sssr |= SSSR_TFS;
655 else
656 s->sssr &= ~SSSR_TFS;
657 if (s->rx_level)
658 s->sssr |= SSSR_RNE;
659 else
660 s->sssr &= ~SSSR_RNE;
661 s->sssr |= SSSR_TNF;
662 }
663
664 pxa2xx_ssp_int_update(s);
665 }
666
667 static uint32_t pxa2xx_ssp_read(void *opaque, target_phys_addr_t addr)
668 {
669 struct pxa2xx_ssp_s *s = (struct pxa2xx_ssp_s *) opaque;
670 uint32_t retval;
671 addr -= s->base;
672
673 switch (addr) {
674 case SSCR0:
675 return s->sscr[0];
676 case SSCR1:
677 return s->sscr[1];
678 case SSPSP:
679 return s->sspsp;
680 case SSTO:
681 return s->ssto;
682 case SSITR:
683 return s->ssitr;
684 case SSSR:
685 return s->sssr | s->ssitr;
686 case SSDR:
687 if (!s->enable)
688 return 0xffffffff;
689 if (s->rx_level < 1) {
690 printf("%s: SSP Rx Underrun\n", __FUNCTION__);
691 return 0xffffffff;
692 }
693 s->rx_level --;
694 retval = s->rx_fifo[s->rx_start ++];
695 s->rx_start &= 0xf;
696 pxa2xx_ssp_fifo_update(s);
697 return retval;
698 case SSTSA:
699 return s->sstsa;
700 case SSRSA:
701 return s->ssrsa;
702 case SSTSS:
703 return 0;
704 case SSACD:
705 return s->ssacd;
706 default:
707 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
708 break;
709 }
710 return 0;
711 }
712
713 static void pxa2xx_ssp_write(void *opaque, target_phys_addr_t addr,
714 uint32_t value)
715 {
716 struct pxa2xx_ssp_s *s = (struct pxa2xx_ssp_s *) opaque;
717 addr -= s->base;
718
719 switch (addr) {
720 case SSCR0:
721 s->sscr[0] = value & 0xc7ffffff;
722 s->enable = value & SSCR0_SSE;
723 if (value & SSCR0_MOD)
724 printf("%s: Attempt to use network mode\n", __FUNCTION__);
725 if (s->enable && SSCR0_DSS(value) < 4)
726 printf("%s: Wrong data size: %i bits\n", __FUNCTION__,
727 SSCR0_DSS(value));
728 if (!(value & SSCR0_SSE)) {
729 s->sssr = 0;
730 s->ssitr = 0;
731 s->rx_level = 0;
732 }
733 pxa2xx_ssp_fifo_update(s);
734 break;
735
736 case SSCR1:
737 s->sscr[1] = value;
738 if (value & (SSCR1_LBM | SSCR1_EFWR))
739 printf("%s: Attempt to use SSP test mode\n", __FUNCTION__);
740 pxa2xx_ssp_fifo_update(s);
741 break;
742
743 case SSPSP:
744 s->sspsp = value;
745 break;
746
747 case SSTO:
748 s->ssto = value;
749 break;
750
751 case SSITR:
752 s->ssitr = value & SSITR_INT;
753 pxa2xx_ssp_int_update(s);
754 break;
755
756 case SSSR:
757 s->sssr &= ~(value & SSSR_RW);
758 pxa2xx_ssp_int_update(s);
759 break;
760
761 case SSDR:
762 if (SSCR0_UWIRE(s->sscr[0])) {
763 if (s->sscr[1] & SSCR1_MWDS)
764 value &= 0xffff;
765 else
766 value &= 0xff;
767 } else
768 /* Note how 32bits overflow does no harm here */
769 value &= (1 << SSCR0_DSS(s->sscr[0])) - 1;
770
771 /* Data goes from here to the Tx FIFO and is shifted out from
772 * there directly to the slave, no need to buffer it.
773 */
774 if (s->enable) {
775 if (s->writefn)
776 s->writefn(s->opaque, value);
777
778 if (s->rx_level < 0x10) {
779 if (s->readfn)
780 s->rx_fifo[(s->rx_start + s->rx_level ++) & 0xf] =
781 s->readfn(s->opaque);
782 else
783 s->rx_fifo[(s->rx_start + s->rx_level ++) & 0xf] = 0x0;
784 } else
785 s->sssr |= SSSR_ROR;
786 }
787 pxa2xx_ssp_fifo_update(s);
788 break;
789
790 case SSTSA:
791 s->sstsa = value;
792 break;
793
794 case SSRSA:
795 s->ssrsa = value;
796 break;
797
798 case SSACD:
799 s->ssacd = value;
800 break;
801
802 default:
803 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
804 break;
805 }
806 }
807
808 void pxa2xx_ssp_attach(struct pxa2xx_ssp_s *port,
809 uint32_t (*readfn)(void *opaque),
810 void (*writefn)(void *opaque, uint32_t value), void *opaque)
811 {
812 if (!port) {
813 printf("%s: no such SSP\n", __FUNCTION__);
814 exit(-1);
815 }
816
817 port->opaque = opaque;
818 port->readfn = readfn;
819 port->writefn = writefn;
820 }
821
822 static CPUReadMemoryFunc *pxa2xx_ssp_readfn[] = {
823 pxa2xx_ssp_read,
824 pxa2xx_ssp_read,
825 pxa2xx_ssp_read,
826 };
827
828 static CPUWriteMemoryFunc *pxa2xx_ssp_writefn[] = {
829 pxa2xx_ssp_write,
830 pxa2xx_ssp_write,
831 pxa2xx_ssp_write,
832 };
833
834 static void pxa2xx_ssp_save(QEMUFile *f, void *opaque)
835 {
836 struct pxa2xx_ssp_s *s = (struct pxa2xx_ssp_s *) opaque;
837 int i;
838
839 qemu_put_be32(f, s->enable);
840
841 qemu_put_be32s(f, &s->sscr[0]);
842 qemu_put_be32s(f, &s->sscr[1]);
843 qemu_put_be32s(f, &s->sspsp);
844 qemu_put_be32s(f, &s->ssto);
845 qemu_put_be32s(f, &s->ssitr);
846 qemu_put_be32s(f, &s->sssr);
847 qemu_put_8s(f, &s->sstsa);
848 qemu_put_8s(f, &s->ssrsa);
849 qemu_put_8s(f, &s->ssacd);
850
851 qemu_put_byte(f, s->rx_level);
852 for (i = 0; i < s->rx_level; i ++)
853 qemu_put_byte(f, s->rx_fifo[(s->rx_start + i) & 0xf]);
854 }
855
856 static int pxa2xx_ssp_load(QEMUFile *f, void *opaque, int version_id)
857 {
858 struct pxa2xx_ssp_s *s = (struct pxa2xx_ssp_s *) opaque;
859 int i;
860
861 s->enable = qemu_get_be32(f);
862
863 qemu_get_be32s(f, &s->sscr[0]);
864 qemu_get_be32s(f, &s->sscr[1]);
865 qemu_get_be32s(f, &s->sspsp);
866 qemu_get_be32s(f, &s->ssto);
867 qemu_get_be32s(f, &s->ssitr);
868 qemu_get_be32s(f, &s->sssr);
869 qemu_get_8s(f, &s->sstsa);
870 qemu_get_8s(f, &s->ssrsa);
871 qemu_get_8s(f, &s->ssacd);
872
873 s->rx_level = qemu_get_byte(f);
874 s->rx_start = 0;
875 for (i = 0; i < s->rx_level; i ++)
876 s->rx_fifo[i] = qemu_get_byte(f);
877
878 return 0;
879 }
880
881 /* Real-Time Clock */
882 #define RCNR 0x00 /* RTC Counter register */
883 #define RTAR 0x04 /* RTC Alarm register */
884 #define RTSR 0x08 /* RTC Status register */
885 #define RTTR 0x0c /* RTC Timer Trim register */
886 #define RDCR 0x10 /* RTC Day Counter register */
887 #define RYCR 0x14 /* RTC Year Counter register */
888 #define RDAR1 0x18 /* RTC Wristwatch Day Alarm register 1 */
889 #define RYAR1 0x1c /* RTC Wristwatch Year Alarm register 1 */
890 #define RDAR2 0x20 /* RTC Wristwatch Day Alarm register 2 */
891 #define RYAR2 0x24 /* RTC Wristwatch Year Alarm register 2 */
892 #define SWCR 0x28 /* RTC Stopwatch Counter register */
893 #define SWAR1 0x2c /* RTC Stopwatch Alarm register 1 */
894 #define SWAR2 0x30 /* RTC Stopwatch Alarm register 2 */
895 #define RTCPICR 0x34 /* RTC Periodic Interrupt Counter register */
896 #define PIAR 0x38 /* RTC Periodic Interrupt Alarm register */
897
898 static inline void pxa2xx_rtc_int_update(struct pxa2xx_state_s *s)
899 {
900 qemu_set_irq(s->pic[PXA2XX_PIC_RTCALARM], !!(s->rtsr & 0x2553));
901 }
902
903 static void pxa2xx_rtc_hzupdate(struct pxa2xx_state_s *s)
904 {
905 int64_t rt = qemu_get_clock(rt_clock);
906 s->last_rcnr += ((rt - s->last_hz) << 15) /
907 (1000 * ((s->rttr & 0xffff) + 1));
908 s->last_rdcr += ((rt - s->last_hz) << 15) /
909 (1000 * ((s->rttr & 0xffff) + 1));
910 s->last_hz = rt;
911 }
912
913 static void pxa2xx_rtc_swupdate(struct pxa2xx_state_s *s)
914 {
915 int64_t rt = qemu_get_clock(rt_clock);
916 if (s->rtsr & (1 << 12))
917 s->last_swcr += (rt - s->last_sw) / 10;
918 s->last_sw = rt;
919 }
920
921 static void pxa2xx_rtc_piupdate(struct pxa2xx_state_s *s)
922 {
923 int64_t rt = qemu_get_clock(rt_clock);
924 if (s->rtsr & (1 << 15))
925 s->last_swcr += rt - s->last_pi;
926 s->last_pi = rt;
927 }
928
929 static inline void pxa2xx_rtc_alarm_update(struct pxa2xx_state_s *s,
930 uint32_t rtsr)
931 {
932 if ((rtsr & (1 << 2)) && !(rtsr & (1 << 0)))
933 qemu_mod_timer(s->rtc_hz, s->last_hz +
934 (((s->rtar - s->last_rcnr) * 1000 *
935 ((s->rttr & 0xffff) + 1)) >> 15));
936 else
937 qemu_del_timer(s->rtc_hz);
938
939 if ((rtsr & (1 << 5)) && !(rtsr & (1 << 4)))
940 qemu_mod_timer(s->rtc_rdal1, s->last_hz +
941 (((s->rdar1 - s->last_rdcr) * 1000 *
942 ((s->rttr & 0xffff) + 1)) >> 15)); /* TODO: fixup */
943 else
944 qemu_del_timer(s->rtc_rdal1);
945
946 if ((rtsr & (1 << 7)) && !(rtsr & (1 << 6)))
947 qemu_mod_timer(s->rtc_rdal2, s->last_hz +
948 (((s->rdar2 - s->last_rdcr) * 1000 *
949 ((s->rttr & 0xffff) + 1)) >> 15)); /* TODO: fixup */
950 else
951 qemu_del_timer(s->rtc_rdal2);
952
953 if ((rtsr & 0x1200) == 0x1200 && !(rtsr & (1 << 8)))
954 qemu_mod_timer(s->rtc_swal1, s->last_sw +
955 (s->swar1 - s->last_swcr) * 10); /* TODO: fixup */
956 else
957 qemu_del_timer(s->rtc_swal1);
958
959 if ((rtsr & 0x1800) == 0x1800 && !(rtsr & (1 << 10)))
960 qemu_mod_timer(s->rtc_swal2, s->last_sw +
961 (s->swar2 - s->last_swcr) * 10); /* TODO: fixup */
962 else
963 qemu_del_timer(s->rtc_swal2);
964
965 if ((rtsr & 0xc000) == 0xc000 && !(rtsr & (1 << 13)))
966 qemu_mod_timer(s->rtc_pi, s->last_pi +
967 (s->piar & 0xffff) - s->last_rtcpicr);
968 else
969 qemu_del_timer(s->rtc_pi);
970 }
971
972 static inline void pxa2xx_rtc_hz_tick(void *opaque)
973 {
974 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
975 s->rtsr |= (1 << 0);
976 pxa2xx_rtc_alarm_update(s, s->rtsr);
977 pxa2xx_rtc_int_update(s);
978 }
979
980 static inline void pxa2xx_rtc_rdal1_tick(void *opaque)
981 {
982 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
983 s->rtsr |= (1 << 4);
984 pxa2xx_rtc_alarm_update(s, s->rtsr);
985 pxa2xx_rtc_int_update(s);
986 }
987
988 static inline void pxa2xx_rtc_rdal2_tick(void *opaque)
989 {
990 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
991 s->rtsr |= (1 << 6);
992 pxa2xx_rtc_alarm_update(s, s->rtsr);
993 pxa2xx_rtc_int_update(s);
994 }
995
996 static inline void pxa2xx_rtc_swal1_tick(void *opaque)
997 {
998 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
999 s->rtsr |= (1 << 8);
1000 pxa2xx_rtc_alarm_update(s, s->rtsr);
1001 pxa2xx_rtc_int_update(s);
1002 }
1003
1004 static inline void pxa2xx_rtc_swal2_tick(void *opaque)
1005 {
1006 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
1007 s->rtsr |= (1 << 10);
1008 pxa2xx_rtc_alarm_update(s, s->rtsr);
1009 pxa2xx_rtc_int_update(s);
1010 }
1011
1012 static inline void pxa2xx_rtc_pi_tick(void *opaque)
1013 {
1014 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
1015 s->rtsr |= (1 << 13);
1016 pxa2xx_rtc_piupdate(s);
1017 s->last_rtcpicr = 0;
1018 pxa2xx_rtc_alarm_update(s, s->rtsr);
1019 pxa2xx_rtc_int_update(s);
1020 }
1021
1022 static uint32_t pxa2xx_rtc_read(void *opaque, target_phys_addr_t addr)
1023 {
1024 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
1025 addr -= s->rtc_base;
1026
1027 switch (addr) {
1028 case RTTR:
1029 return s->rttr;
1030 case RTSR:
1031 return s->rtsr;
1032 case RTAR:
1033 return s->rtar;
1034 case RDAR1:
1035 return s->rdar1;
1036 case RDAR2:
1037 return s->rdar2;
1038 case RYAR1:
1039 return s->ryar1;
1040 case RYAR2:
1041 return s->ryar2;
1042 case SWAR1:
1043 return s->swar1;
1044 case SWAR2:
1045 return s->swar2;
1046 case PIAR:
1047 return s->piar;
1048 case RCNR:
1049 return s->last_rcnr + ((qemu_get_clock(rt_clock) - s->last_hz) << 15) /
1050 (1000 * ((s->rttr & 0xffff) + 1));
1051 case RDCR:
1052 return s->last_rdcr + ((qemu_get_clock(rt_clock) - s->last_hz) << 15) /
1053 (1000 * ((s->rttr & 0xffff) + 1));
1054 case RYCR:
1055 return s->last_rycr;
1056 case SWCR:
1057 if (s->rtsr & (1 << 12))
1058 return s->last_swcr + (qemu_get_clock(rt_clock) - s->last_sw) / 10;
1059 else
1060 return s->last_swcr;
1061 default:
1062 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1063 break;
1064 }
1065 return 0;
1066 }
1067
1068 static void pxa2xx_rtc_write(void *opaque, target_phys_addr_t addr,
1069 uint32_t value)
1070 {
1071 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
1072 addr -= s->rtc_base;
1073
1074 switch (addr) {
1075 case RTTR:
1076 if (!(s->rttr & (1 << 31))) {
1077 pxa2xx_rtc_hzupdate(s);
1078 s->rttr = value;
1079 pxa2xx_rtc_alarm_update(s, s->rtsr);
1080 }
1081 break;
1082
1083 case RTSR:
1084 if ((s->rtsr ^ value) & (1 << 15))
1085 pxa2xx_rtc_piupdate(s);
1086
1087 if ((s->rtsr ^ value) & (1 << 12))
1088 pxa2xx_rtc_swupdate(s);
1089
1090 if (((s->rtsr ^ value) & 0x4aac) | (value & ~0xdaac))
1091 pxa2xx_rtc_alarm_update(s, value);
1092
1093 s->rtsr = (value & 0xdaac) | (s->rtsr & ~(value & ~0xdaac));
1094 pxa2xx_rtc_int_update(s);
1095 break;
1096
1097 case RTAR:
1098 s->rtar = value;
1099 pxa2xx_rtc_alarm_update(s, s->rtsr);
1100 break;
1101
1102 case RDAR1:
1103 s->rdar1 = value;
1104 pxa2xx_rtc_alarm_update(s, s->rtsr);
1105 break;
1106
1107 case RDAR2:
1108 s->rdar2 = value;
1109 pxa2xx_rtc_alarm_update(s, s->rtsr);
1110 break;
1111
1112 case RYAR1:
1113 s->ryar1 = value;
1114 pxa2xx_rtc_alarm_update(s, s->rtsr);
1115 break;
1116
1117 case RYAR2:
1118 s->ryar2 = value;
1119 pxa2xx_rtc_alarm_update(s, s->rtsr);
1120 break;
1121
1122 case SWAR1:
1123 pxa2xx_rtc_swupdate(s);
1124 s->swar1 = value;
1125 s->last_swcr = 0;
1126 pxa2xx_rtc_alarm_update(s, s->rtsr);
1127 break;
1128
1129 case SWAR2:
1130 s->swar2 = value;
1131 pxa2xx_rtc_alarm_update(s, s->rtsr);
1132 break;
1133
1134 case PIAR:
1135 s->piar = value;
1136 pxa2xx_rtc_alarm_update(s, s->rtsr);
1137 break;
1138
1139 case RCNR:
1140 pxa2xx_rtc_hzupdate(s);
1141 s->last_rcnr = value;
1142 pxa2xx_rtc_alarm_update(s, s->rtsr);
1143 break;
1144
1145 case RDCR:
1146 pxa2xx_rtc_hzupdate(s);
1147 s->last_rdcr = value;
1148 pxa2xx_rtc_alarm_update(s, s->rtsr);
1149 break;
1150
1151 case RYCR:
1152 s->last_rycr = value;
1153 break;
1154
1155 case SWCR:
1156 pxa2xx_rtc_swupdate(s);
1157 s->last_swcr = value;
1158 pxa2xx_rtc_alarm_update(s, s->rtsr);
1159 break;
1160
1161 case RTCPICR:
1162 pxa2xx_rtc_piupdate(s);
1163 s->last_rtcpicr = value & 0xffff;
1164 pxa2xx_rtc_alarm_update(s, s->rtsr);
1165 break;
1166
1167 default:
1168 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1169 }
1170 }
1171
1172 static CPUReadMemoryFunc *pxa2xx_rtc_readfn[] = {
1173 pxa2xx_rtc_read,
1174 pxa2xx_rtc_read,
1175 pxa2xx_rtc_read,
1176 };
1177
1178 static CPUWriteMemoryFunc *pxa2xx_rtc_writefn[] = {
1179 pxa2xx_rtc_write,
1180 pxa2xx_rtc_write,
1181 pxa2xx_rtc_write,
1182 };
1183
1184 static void pxa2xx_rtc_init(struct pxa2xx_state_s *s)
1185 {
1186 struct tm tm;
1187 int wom;
1188
1189 s->rttr = 0x7fff;
1190 s->rtsr = 0;
1191
1192 qemu_get_timedate(&tm, 0);
1193 wom = ((tm.tm_mday - 1) / 7) + 1;
1194
1195 s->last_rcnr = (uint32_t) mktime(&tm);
1196 s->last_rdcr = (wom << 20) | ((tm.tm_wday + 1) << 17) |
1197 (tm.tm_hour << 12) | (tm.tm_min << 6) | tm.tm_sec;
1198 s->last_rycr = ((tm.tm_year + 1900) << 9) |
1199 ((tm.tm_mon + 1) << 5) | tm.tm_mday;
1200 s->last_swcr = (tm.tm_hour << 19) |
1201 (tm.tm_min << 13) | (tm.tm_sec << 7);
1202 s->last_rtcpicr = 0;
1203 s->last_hz = s->last_sw = s->last_pi = qemu_get_clock(rt_clock);
1204
1205 s->rtc_hz = qemu_new_timer(rt_clock, pxa2xx_rtc_hz_tick, s);
1206 s->rtc_rdal1 = qemu_new_timer(rt_clock, pxa2xx_rtc_rdal1_tick, s);
1207 s->rtc_rdal2 = qemu_new_timer(rt_clock, pxa2xx_rtc_rdal2_tick, s);
1208 s->rtc_swal1 = qemu_new_timer(rt_clock, pxa2xx_rtc_swal1_tick, s);
1209 s->rtc_swal2 = qemu_new_timer(rt_clock, pxa2xx_rtc_swal2_tick, s);
1210 s->rtc_pi = qemu_new_timer(rt_clock, pxa2xx_rtc_pi_tick, s);
1211 }
1212
1213 static void pxa2xx_rtc_save(QEMUFile *f, void *opaque)
1214 {
1215 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
1216
1217 pxa2xx_rtc_hzupdate(s);
1218 pxa2xx_rtc_piupdate(s);
1219 pxa2xx_rtc_swupdate(s);
1220
1221 qemu_put_be32s(f, &s->rttr);
1222 qemu_put_be32s(f, &s->rtsr);
1223 qemu_put_be32s(f, &s->rtar);
1224 qemu_put_be32s(f, &s->rdar1);
1225 qemu_put_be32s(f, &s->rdar2);
1226 qemu_put_be32s(f, &s->ryar1);
1227 qemu_put_be32s(f, &s->ryar2);
1228 qemu_put_be32s(f, &s->swar1);
1229 qemu_put_be32s(f, &s->swar2);
1230 qemu_put_be32s(f, &s->piar);
1231 qemu_put_be32s(f, &s->last_rcnr);
1232 qemu_put_be32s(f, &s->last_rdcr);
1233 qemu_put_be32s(f, &s->last_rycr);
1234 qemu_put_be32s(f, &s->last_swcr);
1235 qemu_put_be32s(f, &s->last_rtcpicr);
1236 qemu_put_sbe64s(f, &s->last_hz);
1237 qemu_put_sbe64s(f, &s->last_sw);
1238 qemu_put_sbe64s(f, &s->last_pi);
1239 }
1240
1241 static int pxa2xx_rtc_load(QEMUFile *f, void *opaque, int version_id)
1242 {
1243 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
1244
1245 qemu_get_be32s(f, &s->rttr);
1246 qemu_get_be32s(f, &s->rtsr);
1247 qemu_get_be32s(f, &s->rtar);
1248 qemu_get_be32s(f, &s->rdar1);
1249 qemu_get_be32s(f, &s->rdar2);
1250 qemu_get_be32s(f, &s->ryar1);
1251 qemu_get_be32s(f, &s->ryar2);
1252 qemu_get_be32s(f, &s->swar1);
1253 qemu_get_be32s(f, &s->swar2);
1254 qemu_get_be32s(f, &s->piar);
1255 qemu_get_be32s(f, &s->last_rcnr);
1256 qemu_get_be32s(f, &s->last_rdcr);
1257 qemu_get_be32s(f, &s->last_rycr);
1258 qemu_get_be32s(f, &s->last_swcr);
1259 qemu_get_be32s(f, &s->last_rtcpicr);
1260 qemu_get_sbe64s(f, &s->last_hz);
1261 qemu_get_sbe64s(f, &s->last_sw);
1262 qemu_get_sbe64s(f, &s->last_pi);
1263
1264 pxa2xx_rtc_alarm_update(s, s->rtsr);
1265
1266 return 0;
1267 }
1268
1269 /* I2C Interface */
1270 struct pxa2xx_i2c_s {
1271 i2c_slave slave;
1272 i2c_bus *bus;
1273 target_phys_addr_t base;
1274 qemu_irq irq;
1275
1276 uint16_t control;
1277 uint16_t status;
1278 uint8_t ibmr;
1279 uint8_t data;
1280 };
1281
1282 #define IBMR 0x80 /* I2C Bus Monitor register */
1283 #define IDBR 0x88 /* I2C Data Buffer register */
1284 #define ICR 0x90 /* I2C Control register */
1285 #define ISR 0x98 /* I2C Status register */
1286 #define ISAR 0xa0 /* I2C Slave Address register */
1287
1288 static void pxa2xx_i2c_update(struct pxa2xx_i2c_s *s)
1289 {
1290 uint16_t level = 0;
1291 level |= s->status & s->control & (1 << 10); /* BED */
1292 level |= (s->status & (1 << 7)) && (s->control & (1 << 9)); /* IRF */
1293 level |= (s->status & (1 << 6)) && (s->control & (1 << 8)); /* ITE */
1294 level |= s->status & (1 << 9); /* SAD */
1295 qemu_set_irq(s->irq, !!level);
1296 }
1297
1298 /* These are only stubs now. */
1299 static void pxa2xx_i2c_event(i2c_slave *i2c, enum i2c_event event)
1300 {
1301 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *) i2c;
1302
1303 switch (event) {
1304 case I2C_START_SEND:
1305 s->status |= (1 << 9); /* set SAD */
1306 s->status &= ~(1 << 0); /* clear RWM */
1307 break;
1308 case I2C_START_RECV:
1309 s->status |= (1 << 9); /* set SAD */
1310 s->status |= 1 << 0; /* set RWM */
1311 break;
1312 case I2C_FINISH:
1313 s->status |= (1 << 4); /* set SSD */
1314 break;
1315 case I2C_NACK:
1316 s->status |= 1 << 1; /* set ACKNAK */
1317 break;
1318 }
1319 pxa2xx_i2c_update(s);
1320 }
1321
1322 static int pxa2xx_i2c_rx(i2c_slave *i2c)
1323 {
1324 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *) i2c;
1325 if ((s->control & (1 << 14)) || !(s->control & (1 << 6)))
1326 return 0;
1327
1328 if (s->status & (1 << 0)) { /* RWM */
1329 s->status |= 1 << 6; /* set ITE */
1330 }
1331 pxa2xx_i2c_update(s);
1332
1333 return s->data;
1334 }
1335
1336 static int pxa2xx_i2c_tx(i2c_slave *i2c, uint8_t data)
1337 {
1338 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *) i2c;
1339 if ((s->control & (1 << 14)) || !(s->control & (1 << 6)))
1340 return 1;
1341
1342 if (!(s->status & (1 << 0))) { /* RWM */
1343 s->status |= 1 << 7; /* set IRF */
1344 s->data = data;
1345 }
1346 pxa2xx_i2c_update(s);
1347
1348 return 1;
1349 }
1350
1351 static uint32_t pxa2xx_i2c_read(void *opaque, target_phys_addr_t addr)
1352 {
1353 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *) opaque;
1354 addr -= s->base;
1355
1356 switch (addr) {
1357 case ICR:
1358 return s->control;
1359 case ISR:
1360 return s->status | (i2c_bus_busy(s->bus) << 2);
1361 case ISAR:
1362 return s->slave.address;
1363 case IDBR:
1364 return s->data;
1365 case IBMR:
1366 if (s->status & (1 << 2))
1367 s->ibmr ^= 3; /* Fake SCL and SDA pin changes */
1368 else
1369 s->ibmr = 0;
1370 return s->ibmr;
1371 default:
1372 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1373 break;
1374 }
1375 return 0;
1376 }
1377
1378 static void pxa2xx_i2c_write(void *opaque, target_phys_addr_t addr,
1379 uint32_t value)
1380 {
1381 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *) opaque;
1382 int ack;
1383 addr -= s->base;
1384
1385 switch (addr) {
1386 case ICR:
1387 s->control = value & 0xfff7;
1388 if ((value & (1 << 3)) && (value & (1 << 6))) { /* TB and IUE */
1389 /* TODO: slave mode */
1390 if (value & (1 << 0)) { /* START condition */
1391 if (s->data & 1)
1392 s->status |= 1 << 0; /* set RWM */
1393 else
1394 s->status &= ~(1 << 0); /* clear RWM */
1395 ack = !i2c_start_transfer(s->bus, s->data >> 1, s->data & 1);
1396 } else {
1397 if (s->status & (1 << 0)) { /* RWM */
1398 s->data = i2c_recv(s->bus);
1399 if (value & (1 << 2)) /* ACKNAK */
1400 i2c_nack(s->bus);
1401 ack = 1;
1402 } else
1403 ack = !i2c_send(s->bus, s->data);
1404 }
1405
1406 if (value & (1 << 1)) /* STOP condition */
1407 i2c_end_transfer(s->bus);
1408
1409 if (ack) {
1410 if (value & (1 << 0)) /* START condition */
1411 s->status |= 1 << 6; /* set ITE */
1412 else
1413 if (s->status & (1 << 0)) /* RWM */
1414 s->status |= 1 << 7; /* set IRF */
1415 else
1416 s->status |= 1 << 6; /* set ITE */
1417 s->status &= ~(1 << 1); /* clear ACKNAK */
1418 } else {
1419 s->status |= 1 << 6; /* set ITE */
1420 s->status |= 1 << 10; /* set BED */
1421 s->status |= 1 << 1; /* set ACKNAK */
1422 }
1423 }
1424 if (!(value & (1 << 3)) && (value & (1 << 6))) /* !TB and IUE */
1425 if (value & (1 << 4)) /* MA */
1426 i2c_end_transfer(s->bus);
1427 pxa2xx_i2c_update(s);
1428 break;
1429
1430 case ISR:
1431 s->status &= ~(value & 0x07f0);
1432 pxa2xx_i2c_update(s);
1433 break;
1434
1435 case ISAR:
1436 i2c_set_slave_address(&s->slave, value & 0x7f);
1437 break;
1438
1439 case IDBR:
1440 s->data = value & 0xff;
1441 break;
1442
1443 default:
1444 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1445 }
1446 }
1447
1448 static CPUReadMemoryFunc *pxa2xx_i2c_readfn[] = {
1449 pxa2xx_i2c_read,
1450 pxa2xx_i2c_read,
1451 pxa2xx_i2c_read,
1452 };
1453
1454 static CPUWriteMemoryFunc *pxa2xx_i2c_writefn[] = {
1455 pxa2xx_i2c_write,
1456 pxa2xx_i2c_write,
1457 pxa2xx_i2c_write,
1458 };
1459
1460 static void pxa2xx_i2c_save(QEMUFile *f, void *opaque)
1461 {
1462 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *) opaque;
1463
1464 qemu_put_be16s(f, &s->control);
1465 qemu_put_be16s(f, &s->status);
1466 qemu_put_8s(f, &s->ibmr);
1467 qemu_put_8s(f, &s->data);
1468
1469 i2c_slave_save(f, &s->slave);
1470 }
1471
1472 static int pxa2xx_i2c_load(QEMUFile *f, void *opaque, int version_id)
1473 {
1474 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *) opaque;
1475
1476 if (version_id != 1)
1477 return -EINVAL;
1478
1479 qemu_get_be16s(f, &s->control);
1480 qemu_get_be16s(f, &s->status);
1481 qemu_get_8s(f, &s->ibmr);
1482 qemu_get_8s(f, &s->data);
1483
1484 i2c_slave_load(f, &s->slave);
1485 return 0;
1486 }
1487
1488 struct pxa2xx_i2c_s *pxa2xx_i2c_init(target_phys_addr_t base,
1489 qemu_irq irq, uint32_t page_size)
1490 {
1491 int iomemtype;
1492 /* FIXME: Should the slave device really be on a separate bus? */
1493 struct pxa2xx_i2c_s *s = (struct pxa2xx_i2c_s *)
1494 i2c_slave_init(i2c_init_bus(), 0, sizeof(struct pxa2xx_i2c_s));
1495
1496 s->base = base;
1497 s->irq = irq;
1498 s->slave.event = pxa2xx_i2c_event;
1499 s->slave.recv = pxa2xx_i2c_rx;
1500 s->slave.send = pxa2xx_i2c_tx;
1501 s->bus = i2c_init_bus();
1502
1503 iomemtype = cpu_register_io_memory(0, pxa2xx_i2c_readfn,
1504 pxa2xx_i2c_writefn, s);
1505 cpu_register_physical_memory(s->base & ~page_size, page_size, iomemtype);
1506
1507 register_savevm("pxa2xx_i2c", base, 1,
1508 pxa2xx_i2c_save, pxa2xx_i2c_load, s);
1509
1510 return s;
1511 }
1512
1513 i2c_bus *pxa2xx_i2c_bus(struct pxa2xx_i2c_s *s)
1514 {
1515 return s->bus;
1516 }
1517
1518 /* PXA Inter-IC Sound Controller */
1519 static void pxa2xx_i2s_reset(struct pxa2xx_i2s_s *i2s)
1520 {
1521 i2s->rx_len = 0;
1522 i2s->tx_len = 0;
1523 i2s->fifo_len = 0;
1524 i2s->clk = 0x1a;
1525 i2s->control[0] = 0x00;
1526 i2s->control[1] = 0x00;
1527 i2s->status = 0x00;
1528 i2s->mask = 0x00;
1529 }
1530
1531 #define SACR_TFTH(val) ((val >> 8) & 0xf)
1532 #define SACR_RFTH(val) ((val >> 12) & 0xf)
1533 #define SACR_DREC(val) (val & (1 << 3))
1534 #define SACR_DPRL(val) (val & (1 << 4))
1535
1536 static inline void pxa2xx_i2s_update(struct pxa2xx_i2s_s *i2s)
1537 {
1538 int rfs, tfs;
1539 rfs = SACR_RFTH(i2s->control[0]) < i2s->rx_len &&
1540 !SACR_DREC(i2s->control[1]);
1541 tfs = (i2s->tx_len || i2s->fifo_len < SACR_TFTH(i2s->control[0])) &&
1542 i2s->enable && !SACR_DPRL(i2s->control[1]);
1543
1544 pxa2xx_dma_request(i2s->dma, PXA2XX_RX_RQ_I2S, rfs);
1545 pxa2xx_dma_request(i2s->dma, PXA2XX_TX_RQ_I2S, tfs);
1546
1547 i2s->status &= 0xe0;
1548 if (i2s->fifo_len < 16 || !i2s->enable)
1549 i2s->status |= 1 << 0; /* TNF */
1550 if (i2s->rx_len)
1551 i2s->status |= 1 << 1; /* RNE */
1552 if (i2s->enable)
1553 i2s->status |= 1 << 2; /* BSY */
1554 if (tfs)
1555 i2s->status |= 1 << 3; /* TFS */
1556 if (rfs)
1557 i2s->status |= 1 << 4; /* RFS */
1558 if (!(i2s->tx_len && i2s->enable))
1559 i2s->status |= i2s->fifo_len << 8; /* TFL */
1560 i2s->status |= MAX(i2s->rx_len, 0xf) << 12; /* RFL */
1561
1562 qemu_set_irq(i2s->irq, i2s->status & i2s->mask);
1563 }
1564
1565 #define SACR0 0x00 /* Serial Audio Global Control register */
1566 #define SACR1 0x04 /* Serial Audio I2S/MSB-Justified Control register */
1567 #define SASR0 0x0c /* Serial Audio Interface and FIFO Status register */
1568 #define SAIMR 0x14 /* Serial Audio Interrupt Mask register */
1569 #define SAICR 0x18 /* Serial Audio Interrupt Clear register */
1570 #define SADIV 0x60 /* Serial Audio Clock Divider register */
1571 #define SADR 0x80 /* Serial Audio Data register */
1572
1573 static uint32_t pxa2xx_i2s_read(void *opaque, target_phys_addr_t addr)
1574 {
1575 struct pxa2xx_i2s_s *s = (struct pxa2xx_i2s_s *) opaque;
1576 addr -= s->base;
1577
1578 switch (addr) {
1579 case SACR0:
1580 return s->control[0];
1581 case SACR1:
1582 return s->control[1];
1583 case SASR0:
1584 return s->status;
1585 case SAIMR:
1586 return s->mask;
1587 case SAICR:
1588 return 0;
1589 case SADIV:
1590 return s->clk;
1591 case SADR:
1592 if (s->rx_len > 0) {
1593 s->rx_len --;
1594 pxa2xx_i2s_update(s);
1595 return s->codec_in(s->opaque);
1596 }
1597 return 0;
1598 default:
1599 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1600 break;
1601 }
1602 return 0;
1603 }
1604
1605 static void pxa2xx_i2s_write(void *opaque, target_phys_addr_t addr,
1606 uint32_t value)
1607 {
1608 struct pxa2xx_i2s_s *s = (struct pxa2xx_i2s_s *) opaque;
1609 uint32_t *sample;
1610 addr -= s->base;
1611
1612 switch (addr) {
1613 case SACR0:
1614 if (value & (1 << 3)) /* RST */
1615 pxa2xx_i2s_reset(s);
1616 s->control[0] = value & 0xff3d;
1617 if (!s->enable && (value & 1) && s->tx_len) { /* ENB */
1618 for (sample = s->fifo; s->fifo_len > 0; s->fifo_len --, sample ++)
1619 s->codec_out(s->opaque, *sample);
1620 s->status &= ~(1 << 7); /* I2SOFF */
1621 }
1622 if (value & (1 << 4)) /* EFWR */
1623 printf("%s: Attempt to use special function\n", __FUNCTION__);
1624 s->enable = ((value ^ 4) & 5) == 5; /* ENB && !RST*/
1625 pxa2xx_i2s_update(s);
1626 break;
1627 case SACR1:
1628 s->control[1] = value & 0x0039;
1629 if (value & (1 << 5)) /* ENLBF */
1630 printf("%s: Attempt to use loopback function\n", __FUNCTION__);
1631 if (value & (1 << 4)) /* DPRL */
1632 s->fifo_len = 0;
1633 pxa2xx_i2s_update(s);
1634 break;
1635 case SAIMR:
1636 s->mask = value & 0x0078;
1637 pxa2xx_i2s_update(s);
1638 break;
1639 case SAICR:
1640 s->status &= ~(value & (3 << 5));
1641 pxa2xx_i2s_update(s);
1642 break;
1643 case SADIV:
1644 s->clk = value & 0x007f;
1645 break;
1646 case SADR:
1647 if (s->tx_len && s->enable) {
1648 s->tx_len --;
1649 pxa2xx_i2s_update(s);
1650 s->codec_out(s->opaque, value);
1651 } else if (s->fifo_len < 16) {
1652 s->fifo[s->fifo_len ++] = value;
1653 pxa2xx_i2s_update(s);
1654 }
1655 break;
1656 default:
1657 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1658 }
1659 }
1660
1661 static CPUReadMemoryFunc *pxa2xx_i2s_readfn[] = {
1662 pxa2xx_i2s_read,
1663 pxa2xx_i2s_read,
1664 pxa2xx_i2s_read,
1665 };
1666
1667 static CPUWriteMemoryFunc *pxa2xx_i2s_writefn[] = {
1668 pxa2xx_i2s_write,
1669 pxa2xx_i2s_write,
1670 pxa2xx_i2s_write,
1671 };
1672
1673 static void pxa2xx_i2s_save(QEMUFile *f, void *opaque)
1674 {
1675 struct pxa2xx_i2s_s *s = (struct pxa2xx_i2s_s *) opaque;
1676
1677 qemu_put_be32s(f, &s->control[0]);
1678 qemu_put_be32s(f, &s->control[1]);
1679 qemu_put_be32s(f, &s->status);
1680 qemu_put_be32s(f, &s->mask);
1681 qemu_put_be32s(f, &s->clk);
1682
1683 qemu_put_be32(f, s->enable);
1684 qemu_put_be32(f, s->rx_len);
1685 qemu_put_be32(f, s->tx_len);
1686 qemu_put_be32(f, s->fifo_len);
1687 }
1688
1689 static int pxa2xx_i2s_load(QEMUFile *f, void *opaque, int version_id)
1690 {
1691 struct pxa2xx_i2s_s *s = (struct pxa2xx_i2s_s *) opaque;
1692
1693 qemu_get_be32s(f, &s->control[0]);
1694 qemu_get_be32s(f, &s->control[1]);
1695 qemu_get_be32s(f, &s->status);
1696 qemu_get_be32s(f, &s->mask);
1697 qemu_get_be32s(f, &s->clk);
1698
1699 s->enable = qemu_get_be32(f);
1700 s->rx_len = qemu_get_be32(f);
1701 s->tx_len = qemu_get_be32(f);
1702 s->fifo_len = qemu_get_be32(f);
1703
1704 return 0;
1705 }
1706
1707 static void pxa2xx_i2s_data_req(void *opaque, int tx, int rx)
1708 {
1709 struct pxa2xx_i2s_s *s = (struct pxa2xx_i2s_s *) opaque;
1710 uint32_t *sample;
1711
1712 /* Signal FIFO errors */
1713 if (s->enable && s->tx_len)
1714 s->status |= 1 << 5; /* TUR */
1715 if (s->enable && s->rx_len)
1716 s->status |= 1 << 6; /* ROR */
1717
1718 /* Should be tx - MIN(tx, s->fifo_len) but we don't really need to
1719 * handle the cases where it makes a difference. */
1720 s->tx_len = tx - s->fifo_len;
1721 s->rx_len = rx;
1722 /* Note that is s->codec_out wasn't set, we wouldn't get called. */
1723 if (s->enable)
1724 for (sample = s->fifo; s->fifo_len; s->fifo_len --, sample ++)
1725 s->codec_out(s->opaque, *sample);
1726 pxa2xx_i2s_update(s);
1727 }
1728
1729 static struct pxa2xx_i2s_s *pxa2xx_i2s_init(target_phys_addr_t base,
1730 qemu_irq irq, struct pxa2xx_dma_state_s *dma)
1731 {
1732 int iomemtype;
1733 struct pxa2xx_i2s_s *s = (struct pxa2xx_i2s_s *)
1734 qemu_mallocz(sizeof(struct pxa2xx_i2s_s));
1735
1736 s->base = base;
1737 s->irq = irq;
1738 s->dma = dma;
1739 s->data_req = pxa2xx_i2s_data_req;
1740
1741 pxa2xx_i2s_reset(s);
1742
1743 iomemtype = cpu_register_io_memory(0, pxa2xx_i2s_readfn,
1744 pxa2xx_i2s_writefn, s);
1745 cpu_register_physical_memory(s->base & 0xfff00000, 0x100000, iomemtype);
1746
1747 register_savevm("pxa2xx_i2s", base, 0,
1748 pxa2xx_i2s_save, pxa2xx_i2s_load, s);
1749
1750 return s;
1751 }
1752
1753 /* PXA Fast Infra-red Communications Port */
1754 struct pxa2xx_fir_s {
1755 target_phys_addr_t base;
1756 qemu_irq irq;
1757 struct pxa2xx_dma_state_s *dma;
1758 int enable;
1759 CharDriverState *chr;
1760
1761 uint8_t control[3];
1762 uint8_t status[2];
1763
1764 int rx_len;
1765 int rx_start;
1766 uint8_t rx_fifo[64];
1767 };
1768
1769 static void pxa2xx_fir_reset(struct pxa2xx_fir_s *s)
1770 {
1771 s->control[0] = 0x00;
1772 s->control[1] = 0x00;
1773 s->control[2] = 0x00;
1774 s->status[0] = 0x00;
1775 s->status[1] = 0x00;
1776 s->enable = 0;
1777 }
1778
1779 static inline void pxa2xx_fir_update(struct pxa2xx_fir_s *s)
1780 {
1781 static const int tresh[4] = { 8, 16, 32, 0 };
1782 int intr = 0;
1783 if ((s->control[0] & (1 << 4)) && /* RXE */
1784 s->rx_len >= tresh[s->control[2] & 3]) /* TRIG */
1785 s->status[0] |= 1 << 4; /* RFS */
1786 else
1787 s->status[0] &= ~(1 << 4); /* RFS */
1788 if (s->control[0] & (1 << 3)) /* TXE */
1789 s->status[0] |= 1 << 3; /* TFS */
1790 else
1791 s->status[0] &= ~(1 << 3); /* TFS */
1792 if (s->rx_len)
1793 s->status[1] |= 1 << 2; /* RNE */
1794 else
1795 s->status[1] &= ~(1 << 2); /* RNE */
1796 if (s->control[0] & (1 << 4)) /* RXE */
1797 s->status[1] |= 1 << 0; /* RSY */
1798 else
1799 s->status[1] &= ~(1 << 0); /* RSY */
1800
1801 intr |= (s->control[0] & (1 << 5)) && /* RIE */
1802 (s->status[0] & (1 << 4)); /* RFS */
1803 intr |= (s->control[0] & (1 << 6)) && /* TIE */
1804 (s->status[0] & (1 << 3)); /* TFS */
1805 intr |= (s->control[2] & (1 << 4)) && /* TRAIL */
1806 (s->status[0] & (1 << 6)); /* EOC */
1807 intr |= (s->control[0] & (1 << 2)) && /* TUS */
1808 (s->status[0] & (1 << 1)); /* TUR */
1809 intr |= s->status[0] & 0x25; /* FRE, RAB, EIF */
1810
1811 pxa2xx_dma_request(s->dma, PXA2XX_RX_RQ_ICP, (s->status[0] >> 4) & 1);
1812 pxa2xx_dma_request(s->dma, PXA2XX_TX_RQ_ICP, (s->status[0] >> 3) & 1);
1813
1814 qemu_set_irq(s->irq, intr && s->enable);
1815 }
1816
1817 #define ICCR0 0x00 /* FICP Control register 0 */
1818 #define ICCR1 0x04 /* FICP Control register 1 */
1819 #define ICCR2 0x08 /* FICP Control register 2 */
1820 #define ICDR 0x0c /* FICP Data register */
1821 #define ICSR0 0x14 /* FICP Status register 0 */
1822 #define ICSR1 0x18 /* FICP Status register 1 */
1823 #define ICFOR 0x1c /* FICP FIFO Occupancy Status register */
1824
1825 static uint32_t pxa2xx_fir_read(void *opaque, target_phys_addr_t addr)
1826 {
1827 struct pxa2xx_fir_s *s = (struct pxa2xx_fir_s *) opaque;
1828 uint8_t ret;
1829 addr -= s->base;
1830
1831 switch (addr) {
1832 case ICCR0:
1833 return s->control[0];
1834 case ICCR1:
1835 return s->control[1];
1836 case ICCR2:
1837 return s->control[2];
1838 case ICDR:
1839 s->status[0] &= ~0x01;
1840 s->status[1] &= ~0x72;
1841 if (s->rx_len) {
1842 s->rx_len --;
1843 ret = s->rx_fifo[s->rx_start ++];
1844 s->rx_start &= 63;
1845 pxa2xx_fir_update(s);
1846 return ret;
1847 }
1848 printf("%s: Rx FIFO underrun.\n", __FUNCTION__);
1849 break;
1850 case ICSR0:
1851 return s->status[0];
1852 case ICSR1:
1853 return s->status[1] | (1 << 3); /* TNF */
1854 case ICFOR:
1855 return s->rx_len;
1856 default:
1857 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1858 break;
1859 }
1860 return 0;
1861 }
1862
1863 static void pxa2xx_fir_write(void *opaque, target_phys_addr_t addr,
1864 uint32_t value)
1865 {
1866 struct pxa2xx_fir_s *s = (struct pxa2xx_fir_s *) opaque;
1867 uint8_t ch;
1868 addr -= s->base;
1869
1870 switch (addr) {
1871 case ICCR0:
1872 s->control[0] = value;
1873 if (!(value & (1 << 4))) /* RXE */
1874 s->rx_len = s->rx_start = 0;
1875 if (!(value & (1 << 3))) /* TXE */
1876 /* Nop */;
1877 s->enable = value & 1; /* ITR */
1878 if (!s->enable)
1879 s->status[0] = 0;
1880 pxa2xx_fir_update(s);
1881 break;
1882 case ICCR1:
1883 s->control[1] = value;
1884 break;
1885 case ICCR2:
1886 s->control[2] = value & 0x3f;
1887 pxa2xx_fir_update(s);
1888 break;
1889 case ICDR:
1890 if (s->control[2] & (1 << 2)) /* TXP */
1891 ch = value;
1892 else
1893 ch = ~value;
1894 if (s->chr && s->enable && (s->control[0] & (1 << 3))) /* TXE */
1895 qemu_chr_write(s->chr, &ch, 1);
1896 break;
1897 case ICSR0:
1898 s->status[0] &= ~(value & 0x66);
1899 pxa2xx_fir_update(s);
1900 break;
1901 case ICFOR:
1902 break;
1903 default:
1904 printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr);
1905 }
1906 }
1907
1908 static CPUReadMemoryFunc *pxa2xx_fir_readfn[] = {
1909 pxa2xx_fir_read,
1910 pxa2xx_fir_read,
1911 pxa2xx_fir_read,
1912 };
1913
1914 static CPUWriteMemoryFunc *pxa2xx_fir_writefn[] = {
1915 pxa2xx_fir_write,
1916 pxa2xx_fir_write,
1917 pxa2xx_fir_write,
1918 };
1919
1920 static int pxa2xx_fir_is_empty(void *opaque)
1921 {
1922 struct pxa2xx_fir_s *s = (struct pxa2xx_fir_s *) opaque;
1923 return (s->rx_len < 64);
1924 }
1925
1926 static void pxa2xx_fir_rx(void *opaque, const uint8_t *buf, int size)
1927 {
1928 struct pxa2xx_fir_s *s = (struct pxa2xx_fir_s *) opaque;
1929 if (!(s->control[0] & (1 << 4))) /* RXE */
1930 return;
1931
1932 while (size --) {
1933 s->status[1] |= 1 << 4; /* EOF */
1934 if (s->rx_len >= 64) {
1935 s->status[1] |= 1 << 6; /* ROR */
1936 break;
1937 }
1938
1939 if (s->control[2] & (1 << 3)) /* RXP */
1940 s->rx_fifo[(s->rx_start + s->rx_len ++) & 63] = *(buf ++);
1941 else
1942 s->rx_fifo[(s->rx_start + s->rx_len ++) & 63] = ~*(buf ++);
1943 }
1944
1945 pxa2xx_fir_update(s);
1946 }
1947
1948 static void pxa2xx_fir_event(void *opaque, int event)
1949 {
1950 }
1951
1952 static void pxa2xx_fir_save(QEMUFile *f, void *opaque)
1953 {
1954 struct pxa2xx_fir_s *s = (struct pxa2xx_fir_s *) opaque;
1955 int i;
1956
1957 qemu_put_be32(f, s->enable);
1958
1959 qemu_put_8s(f, &s->control[0]);
1960 qemu_put_8s(f, &s->control[1]);
1961 qemu_put_8s(f, &s->control[2]);
1962 qemu_put_8s(f, &s->status[0]);
1963 qemu_put_8s(f, &s->status[1]);
1964
1965 qemu_put_byte(f, s->rx_len);
1966 for (i = 0; i < s->rx_len; i ++)
1967 qemu_put_byte(f, s->rx_fifo[(s->rx_start + i) & 63]);
1968 }
1969
1970 static int pxa2xx_fir_load(QEMUFile *f, void *opaque, int version_id)
1971 {
1972 struct pxa2xx_fir_s *s = (struct pxa2xx_fir_s *) opaque;
1973 int i;
1974
1975 s->enable = qemu_get_be32(f);
1976
1977 qemu_get_8s(f, &s->control[0]);
1978 qemu_get_8s(f, &s->control[1]);
1979 qemu_get_8s(f, &s->control[2]);
1980 qemu_get_8s(f, &s->status[0]);
1981 qemu_get_8s(f, &s->status[1]);
1982
1983 s->rx_len = qemu_get_byte(f);
1984 s->rx_start = 0;
1985 for (i = 0; i < s->rx_len; i ++)
1986 s->rx_fifo[i] = qemu_get_byte(f);
1987
1988 return 0;
1989 }
1990
1991 static struct pxa2xx_fir_s *pxa2xx_fir_init(target_phys_addr_t base,
1992 qemu_irq irq, struct pxa2xx_dma_state_s *dma,
1993 CharDriverState *chr)
1994 {
1995 int iomemtype;
1996 struct pxa2xx_fir_s *s = (struct pxa2xx_fir_s *)
1997 qemu_mallocz(sizeof(struct pxa2xx_fir_s));
1998
1999 s->base = base;
2000 s->irq = irq;
2001 s->dma = dma;
2002 s->chr = chr;
2003
2004 pxa2xx_fir_reset(s);
2005
2006 iomemtype = cpu_register_io_memory(0, pxa2xx_fir_readfn,
2007 pxa2xx_fir_writefn, s);
2008 cpu_register_physical_memory(s->base, 0x1000, iomemtype);
2009
2010 if (chr)
2011 qemu_chr_add_handlers(chr, pxa2xx_fir_is_empty,
2012 pxa2xx_fir_rx, pxa2xx_fir_event, s);
2013
2014 register_savevm("pxa2xx_fir", 0, 0, pxa2xx_fir_save, pxa2xx_fir_load, s);
2015
2016 return s;
2017 }
2018
2019 static void pxa2xx_reset(void *opaque, int line, int level)
2020 {
2021 struct pxa2xx_state_s *s = (struct pxa2xx_state_s *) opaque;
2022
2023 if (level && (s->pm_regs[PCFR >> 2] & 0x10)) { /* GPR_EN */
2024 cpu_reset(s->env);
2025 /* TODO: reset peripherals */
2026 }
2027 }
2028
2029 /* Initialise a PXA270 integrated chip (ARM based core). */
2030 struct pxa2xx_state_s *pxa270_init(unsigned int sdram_size,
2031 DisplayState *ds, const char *revision)
2032 {
2033 struct pxa2xx_state_s *s;
2034 struct pxa2xx_ssp_s *ssp;
2035 int iomemtype, i;
2036 int index;
2037 s = (struct pxa2xx_state_s *) qemu_mallocz(sizeof(struct pxa2xx_state_s));
2038
2039 if (revision && strncmp(revision, "pxa27", 5)) {
2040 fprintf(stderr, "Machine requires a PXA27x processor.\n");
2041 exit(1);
2042 }
2043 if (!revision)
2044 revision = "pxa270";
2045
2046 s->env = cpu_init(revision);
2047 if (!s->env) {
2048 fprintf(stderr, "Unable to find CPU definition\n");
2049 exit(1);
2050 }
2051 s->reset = qemu_allocate_irqs(pxa2xx_reset, s, 1)[0];
2052
2053 /* SDRAM & Internal Memory Storage */
2054 cpu_register_physical_memory(PXA2XX_SDRAM_BASE,
2055 sdram_size, qemu_ram_alloc(sdram_size) | IO_MEM_RAM);
2056 cpu_register_physical_memory(PXA2XX_INTERNAL_BASE,
2057 0x40000, qemu_ram_alloc(0x40000) | IO_MEM_RAM);
2058
2059 s->pic = pxa2xx_pic_init(0x40d00000, s->env);
2060
2061 s->dma = pxa27x_dma_init(0x40000000, s->pic[PXA2XX_PIC_DMA]);
2062
2063 pxa27x_timer_init(0x40a00000, &s->pic[PXA2XX_PIC_OST_0],
2064 s->pic[PXA27X_PIC_OST_4_11]);
2065
2066 s->gpio = pxa2xx_gpio_init(0x40e00000, s->env, s->pic, 121);
2067
2068 index = drive_get_index(IF_SD, 0, 0);
2069 if (index == -1) {
2070 fprintf(stderr, "qemu: missing SecureDigital device\n");
2071 exit(1);
2072 }
2073 s->mmc = pxa2xx_mmci_init(0x41100000, drives_table[index].bdrv,
2074 s->pic[PXA2XX_PIC_MMC], s->dma);
2075
2076 for (i = 0; pxa270_serial[i].io_base; i ++)
2077 if (serial_hds[i])
2078 serial_mm_init(pxa270_serial[i].io_base, 2,
2079 s->pic[pxa270_serial[i].irqn], 14857000/16,
2080 serial_hds[i], 1);
2081 else
2082 break;
2083 if (serial_hds[i])
2084 s->fir = pxa2xx_fir_init(0x40800000, s->pic[PXA2XX_PIC_ICP],
2085 s->dma, serial_hds[i]);
2086
2087 if (ds)
2088 s->lcd = pxa2xx_lcdc_init(0x44000000, s->pic[PXA2XX_PIC_LCD], ds);
2089
2090 s->cm_base = 0x41300000;
2091 s->cm_regs[CCCR >> 2] = 0x02000210; /* 416.0 MHz */
2092 s->clkcfg = 0x00000009; /* Turbo mode active */
2093 iomemtype = cpu_register_io_memory(0, pxa2xx_cm_readfn,
2094 pxa2xx_cm_writefn, s);
2095 cpu_register_physical_memory(s->cm_base, 0x1000, iomemtype);
2096 register_savevm("pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s);
2097
2098 cpu_arm_set_cp_io(s->env, 14, pxa2xx_cp14_read, pxa2xx_cp14_write, s);
2099
2100 s->mm_base = 0x48000000;
2101 s->mm_regs[MDMRS >> 2] = 0x00020002;
2102 s->mm_regs[MDREFR >> 2] = 0x03ca4000;
2103 s->mm_regs[MECR >> 2] = 0x00000001; /* Two PC Card sockets */
2104 iomemtype = cpu_register_io_memory(0, pxa2xx_mm_readfn,
2105 pxa2xx_mm_writefn, s);
2106 cpu_register_physical_memory(s->mm_base, 0x1000, iomemtype);
2107 register_savevm("pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s);
2108
2109 s->pm_base = 0x40f00000;
2110 iomemtype = cpu_register_io_memory(0, pxa2xx_pm_readfn,
2111 pxa2xx_pm_writefn, s);
2112 cpu_register_physical_memory(s->pm_base, 0x100, iomemtype);
2113 register_savevm("pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s);
2114
2115 for (i = 0; pxa27x_ssp[i].io_base; i ++);
2116 s->ssp = (struct pxa2xx_ssp_s **)
2117 qemu_mallocz(sizeof(struct pxa2xx_ssp_s *) * i);
2118 ssp = (struct pxa2xx_ssp_s *)
2119 qemu_mallocz(sizeof(struct pxa2xx_ssp_s) * i);
2120 for (i = 0; pxa27x_ssp[i].io_base; i ++) {
2121 s->ssp[i] = &ssp[i];
2122 ssp[i].base = pxa27x_ssp[i].io_base;
2123 ssp[i].irq = s->pic[pxa27x_ssp[i].irqn];
2124
2125 iomemtype = cpu_register_io_memory(0, pxa2xx_ssp_readfn,
2126 pxa2xx_ssp_writefn, &ssp[i]);
2127 cpu_register_physical_memory(ssp[i].base, 0x1000, iomemtype);
2128 register_savevm("pxa2xx_ssp", i, 0,
2129 pxa2xx_ssp_save, pxa2xx_ssp_load, s);
2130 }
2131
2132 if (usb_enabled) {
2133 usb_ohci_init_pxa(0x4c000000, 3, -1, s->pic[PXA2XX_PIC_USBH1]);
2134 }
2135
2136 s->pcmcia[0] = pxa2xx_pcmcia_init(0x20000000);
2137 s->pcmcia[1] = pxa2xx_pcmcia_init(0x30000000);
2138
2139 s->rtc_base = 0x40900000;
2140 iomemtype = cpu_register_io_memory(0, pxa2xx_rtc_readfn,
2141 pxa2xx_rtc_writefn, s);
2142 cpu_register_physical_memory(s->rtc_base, 0x1000, iomemtype);
2143 pxa2xx_rtc_init(s);
2144 register_savevm("pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, pxa2xx_rtc_load, s);
2145
2146 s->i2c[0] = pxa2xx_i2c_init(0x40301600, s->pic[PXA2XX_PIC_I2C], 0xffff);
2147 s->i2c[1] = pxa2xx_i2c_init(0x40f00100, s->pic[PXA2XX_PIC_PWRI2C], 0xff);
2148
2149 s->i2s = pxa2xx_i2s_init(0x40400000, s->pic[PXA2XX_PIC_I2S], s->dma);
2150
2151 s->kp = pxa27x_keypad_init(0x41500000, s->pic[PXA2XX_PIC_KEYPAD]);
2152
2153 /* GPIO1 resets the processor */
2154 /* The handler can be overridden by board-specific code */
2155 pxa2xx_gpio_out_set(s->gpio, 1, s->reset);
2156 return s;
2157 }
2158
2159 /* Initialise a PXA255 integrated chip (ARM based core). */
2160 struct pxa2xx_state_s *pxa255_init(unsigned int sdram_size,
2161 DisplayState *ds)
2162 {
2163 struct pxa2xx_state_s *s;
2164 struct pxa2xx_ssp_s *ssp;
2165 int iomemtype, i;
2166 int index;
2167
2168 s = (struct pxa2xx_state_s *) qemu_mallocz(sizeof(struct pxa2xx_state_s));
2169
2170 s->env = cpu_init("pxa255");
2171 if (!s->env) {
2172 fprintf(stderr, "Unable to find CPU definition\n");
2173 exit(1);
2174 }
2175 s->reset = qemu_allocate_irqs(pxa2xx_reset, s, 1)[0];
2176
2177 /* SDRAM & Internal Memory Storage */
2178 cpu_register_physical_memory(PXA2XX_SDRAM_BASE, sdram_size,
2179 qemu_ram_alloc(sdram_size) | IO_MEM_RAM);
2180 cpu_register_physical_memory(PXA2XX_INTERNAL_BASE, PXA2XX_INTERNAL_SIZE,
2181 qemu_ram_alloc(PXA2XX_INTERNAL_SIZE) | IO_MEM_RAM);
2182
2183 s->pic = pxa2xx_pic_init(0x40d00000, s->env);
2184
2185 s->dma = pxa255_dma_init(0x40000000, s->pic[PXA2XX_PIC_DMA]);
2186
2187 pxa25x_timer_init(0x40a00000, &s->pic[PXA2XX_PIC_OST_0]);
2188
2189 s->gpio = pxa2xx_gpio_init(0x40e00000, s->env, s->pic, 85);
2190
2191 index = drive_get_index(IF_SD, 0, 0);
2192 if (index == -1) {
2193 fprintf(stderr, "qemu: missing SecureDigital device\n");
2194 exit(1);
2195 }
2196 s->mmc = pxa2xx_mmci_init(0x41100000, drives_table[index].bdrv,
2197 s->pic[PXA2XX_PIC_MMC], s->dma);
2198
2199 for (i = 0; pxa255_serial[i].io_base; i ++)
2200 if (serial_hds[i])
2201 serial_mm_init(pxa255_serial[i].io_base, 2,
2202 s->pic[pxa255_serial[i].irqn], 14745600/16,
2203 serial_hds[i], 1);
2204 else
2205 break;
2206 if (serial_hds[i])
2207 s->fir = pxa2xx_fir_init(0x40800000, s->pic[PXA2XX_PIC_ICP],
2208 s->dma, serial_hds[i]);
2209
2210 if (ds)
2211 s->lcd = pxa2xx_lcdc_init(0x44000000, s->pic[PXA2XX_PIC_LCD], ds);
2212
2213 s->cm_base = 0x41300000;
2214 s->cm_regs[CCCR >> 2] = 0x02000210; /* 416.0 MHz */
2215 s->clkcfg = 0x00000009; /* Turbo mode active */
2216 iomemtype = cpu_register_io_memory(0, pxa2xx_cm_readfn,
2217 pxa2xx_cm_writefn, s);
2218 cpu_register_physical_memory(s->cm_base, 0x1000, iomemtype);
2219 register_savevm("pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s);
2220
2221 cpu_arm_set_cp_io(s->env, 14, pxa2xx_cp14_read, pxa2xx_cp14_write, s);
2222
2223 s->mm_base = 0x48000000;
2224 s->mm_regs[MDMRS >> 2] = 0x00020002;
2225 s->mm_regs[MDREFR >> 2] = 0x03ca4000;
2226 s->mm_regs[MECR >> 2] = 0x00000001; /* Two PC Card sockets */
2227 iomemtype = cpu_register_io_memory(0, pxa2xx_mm_readfn,
2228 pxa2xx_mm_writefn, s);
2229 cpu_register_physical_memory(s->mm_base, 0x1000, iomemtype);
2230 register_savevm("pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s);
2231
2232 s->pm_base = 0x40f00000;
2233 iomemtype = cpu_register_io_memory(0, pxa2xx_pm_readfn,
2234 pxa2xx_pm_writefn, s);
2235 cpu_register_physical_memory(s->pm_base, 0x100, iomemtype);
2236 register_savevm("pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s);
2237
2238 for (i = 0; pxa255_ssp[i].io_base; i ++);
2239 s->ssp = (struct pxa2xx_ssp_s **)
2240 qemu_mallocz(sizeof(struct pxa2xx_ssp_s *) * i);
2241 ssp = (struct pxa2xx_ssp_s *)
2242 qemu_mallocz(sizeof(struct pxa2xx_ssp_s) * i);
2243 for (i = 0; pxa255_ssp[i].io_base; i ++) {
2244 s->ssp[i] = &ssp[i];
2245 ssp[i].base = pxa255_ssp[i].io_base;
2246 ssp[i].irq = s->pic[pxa255_ssp[i].irqn];
2247
2248 iomemtype = cpu_register_io_memory(0, pxa2xx_ssp_readfn,
2249 pxa2xx_ssp_writefn, &ssp[i]);
2250 cpu_register_physical_memory(ssp[i].base, 0x1000, iomemtype);
2251 register_savevm("pxa2xx_ssp", i, 0,
2252 pxa2xx_ssp_save, pxa2xx_ssp_load, s);
2253 }
2254
2255 if (usb_enabled) {
2256 usb_ohci_init_pxa(0x4c000000, 3, -1, s->pic[PXA2XX_PIC_USBH1]);
2257 }
2258
2259 s->pcmcia[0] = pxa2xx_pcmcia_init(0x20000000);
2260 s->pcmcia[1] = pxa2xx_pcmcia_init(0x30000000);
2261
2262 s->rtc_base = 0x40900000;
2263 iomemtype = cpu_register_io_memory(0, pxa2xx_rtc_readfn,
2264 pxa2xx_rtc_writefn, s);
2265 cpu_register_physical_memory(s->rtc_base, 0x1000, iomemtype);
2266 pxa2xx_rtc_init(s);
2267 register_savevm("pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, pxa2xx_rtc_load, s);
2268
2269 s->i2c[0] = pxa2xx_i2c_init(0x40301600, s->pic[PXA2XX_PIC_I2C], 0xffff);
2270 s->i2c[1] = pxa2xx_i2c_init(0x40f00100, s->pic[PXA2XX_PIC_PWRI2C], 0xff);
2271
2272 s->i2s = pxa2xx_i2s_init(0x40400000, s->pic[PXA2XX_PIC_I2S], s->dma);
2273
2274 /* GPIO1 resets the processor */
2275 /* The handler can be overridden by board-specific code */
2276 pxa2xx_gpio_out_set(s->gpio, 1, s->reset);
2277 return s;
2278 }
Samsung s3c2440 and arm920t support for the mini2440 dev board