4 * Copyright (c) 2007 Magnus Damm
5 * Copyright (c) 2005 Samuel Tardieu
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
30 #include "sh7750_regs.h"
31 #include "sh7750_regnames.h"
36 typedef struct SH7750State {
39 /* Peripheral frequency in Hz */
41 /* SDRAM controller */
47 uint16_t portdira; /* Cached */
48 uint16_t portpullupa; /* Cached */
49 uint16_t portdirb; /* Cached */
50 uint16_t portpullupb; /* Cached */
53 uint16_t periph_pdtra; /* Imposed by the peripherals */
54 uint16_t periph_portdira; /* Direction seen from the peripherals */
55 uint16_t periph_pdtrb; /* Imposed by the peripherals */
56 uint16_t periph_portdirb; /* Direction seen from the peripherals */
57 sh7750_io_device *devices[NB_DEVICES]; /* External peripherals */
63 struct intc_desc intc;
67 /**********************************************************************
69 **********************************************************************/
71 int sh7750_register_io_device(SH7750State * s, sh7750_io_device * device)
75 for (i = 0; i < NB_DEVICES; i++) {
76 if (s->devices[i] == NULL) {
77 s->devices[i] = device;
84 static uint16_t portdir(uint32_t v)
86 #define EVENPORTMASK(n) ((v & (1<<((n)<<1))) >> (n))
88 EVENPORTMASK(15) | EVENPORTMASK(14) | EVENPORTMASK(13) |
89 EVENPORTMASK(12) | EVENPORTMASK(11) | EVENPORTMASK(10) |
90 EVENPORTMASK(9) | EVENPORTMASK(8) | EVENPORTMASK(7) |
91 EVENPORTMASK(6) | EVENPORTMASK(5) | EVENPORTMASK(4) |
92 EVENPORTMASK(3) | EVENPORTMASK(2) | EVENPORTMASK(1) |
96 static uint16_t portpullup(uint32_t v)
98 #define ODDPORTMASK(n) ((v & (1<<(((n)<<1)+1))) >> (n))
100 ODDPORTMASK(15) | ODDPORTMASK(14) | ODDPORTMASK(13) |
101 ODDPORTMASK(12) | ODDPORTMASK(11) | ODDPORTMASK(10) |
102 ODDPORTMASK(9) | ODDPORTMASK(8) | ODDPORTMASK(7) | ODDPORTMASK(6) |
103 ODDPORTMASK(5) | ODDPORTMASK(4) | ODDPORTMASK(3) | ODDPORTMASK(2) |
104 ODDPORTMASK(1) | ODDPORTMASK(0);
107 static uint16_t porta_lines(SH7750State * s)
109 return (s->portdira & s->pdtra) | /* CPU */
110 (s->periph_portdira & s->periph_pdtra) | /* Peripherals */
111 (~(s->portdira | s->periph_portdira) & s->portpullupa); /* Pullups */
114 static uint16_t portb_lines(SH7750State * s)
116 return (s->portdirb & s->pdtrb) | /* CPU */
117 (s->periph_portdirb & s->periph_pdtrb) | /* Peripherals */
118 (~(s->portdirb | s->periph_portdirb) & s->portpullupb); /* Pullups */
121 static void gen_port_interrupts(SH7750State * s)
123 /* XXXXX interrupts not generated */
126 static void porta_changed(SH7750State * s, uint16_t prev)
128 uint16_t currenta, changes;
132 fprintf(stderr, "porta changed from 0x%04x to 0x%04x\n",
133 prev, porta_lines(s));
134 fprintf(stderr, "pdtra=0x%04x, pctra=0x%08x\n", s->pdtra, s->pctra);
136 currenta = porta_lines(s);
137 if (currenta == prev)
139 changes = currenta ^ prev;
141 for (i = 0; i < NB_DEVICES; i++) {
142 if (s->devices[i] && (s->devices[i]->portamask_trigger & changes)) {
143 r |= s->devices[i]->port_change_cb(currenta, portb_lines(s),
147 &s->periph_portdirb);
152 gen_port_interrupts(s);
155 static void portb_changed(SH7750State * s, uint16_t prev)
157 uint16_t currentb, changes;
160 currentb = portb_lines(s);
161 if (currentb == prev)
163 changes = currentb ^ prev;
165 for (i = 0; i < NB_DEVICES; i++) {
166 if (s->devices[i] && (s->devices[i]->portbmask_trigger & changes)) {
167 r |= s->devices[i]->port_change_cb(portb_lines(s), currentb,
171 &s->periph_portdirb);
176 gen_port_interrupts(s);
179 /**********************************************************************
181 **********************************************************************/
183 static void error_access(const char *kind, target_phys_addr_t addr)
185 fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") not supported\n",
186 kind, regname(addr), addr);
189 static void ignore_access(const char *kind, target_phys_addr_t addr)
191 fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") ignored\n",
192 kind, regname(addr), addr);
195 static uint32_t sh7750_mem_readb(void *opaque, target_phys_addr_t addr)
199 error_access("byte read", addr);
204 static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr)
206 SH7750State *s = opaque;
209 case SH7750_FRQCR_A7:
213 "Read access to refresh count register, incrementing\n");
215 case SH7750_PDTRA_A7:
216 return porta_lines(s);
217 case SH7750_PDTRB_A7:
218 return portb_lines(s);
222 error_access("word read", addr);
227 static uint32_t sh7750_mem_readl(void *opaque, target_phys_addr_t addr)
229 SH7750State *s = opaque;
232 case SH7750_MMUCR_A7:
233 return s->cpu->mmucr;
244 case SH7750_EXPEVT_A7:
245 return s->cpu->expevt;
246 case SH7750_INTEVT_A7:
247 return s->cpu->intevt;
250 case 0x1f000030: /* Processor version PVR */
251 return 0x00050000; /* SH7750R */
252 case 0x1f000040: /* Processor version CVR */
253 return 0x00110000; /* Minimum caches */
254 case 0x1f000044: /* Processor version PRR */
255 return 0x00000100; /* SH7750R */
257 error_access("long read", addr);
262 static void sh7750_mem_writeb(void *opaque, target_phys_addr_t addr,
266 /* PRECHARGE ? XXXXX */
267 case SH7750_PRECHARGE0_A7:
268 case SH7750_PRECHARGE1_A7:
269 ignore_access("byte write", addr);
272 error_access("byte write", addr);
277 static void sh7750_mem_writew(void *opaque, target_phys_addr_t addr,
280 SH7750State *s = opaque;
284 /* SDRAM controller */
287 case SH7750_RTCOR_A7:
288 case SH7750_RTCNT_A7:
289 case SH7750_RTCSR_A7:
290 ignore_access("word write", addr);
293 case SH7750_PDTRA_A7:
294 temp = porta_lines(s);
295 s->pdtra = mem_value;
296 porta_changed(s, temp);
298 case SH7750_PDTRB_A7:
299 temp = portb_lines(s);
300 s->pdtrb = mem_value;
301 portb_changed(s, temp);
304 fprintf(stderr, "Write access to refresh count register\n");
307 case SH7750_GPIOIC_A7:
308 s->gpioic = mem_value;
309 if (mem_value != 0) {
310 fprintf(stderr, "I/O interrupts not implemented\n");
318 error_access("word write", addr);
323 static void sh7750_mem_writel(void *opaque, target_phys_addr_t addr,
326 SH7750State *s = opaque;
330 /* SDRAM controller */
337 ignore_access("long write", addr);
340 case SH7750_PCTRA_A7:
341 temp = porta_lines(s);
342 s->pctra = mem_value;
343 s->portdira = portdir(mem_value);
344 s->portpullupa = portpullup(mem_value);
345 porta_changed(s, temp);
347 case SH7750_PCTRB_A7:
348 temp = portb_lines(s);
349 s->pctrb = mem_value;
350 s->portdirb = portdir(mem_value);
351 s->portpullupb = portpullup(mem_value);
352 portb_changed(s, temp);
354 case SH7750_MMUCR_A7:
355 s->cpu->mmucr = mem_value;
358 s->cpu->pteh = mem_value;
361 s->cpu->ptel = mem_value;
364 s->cpu->ptea = mem_value & 0x0000000f;
367 s->cpu->ttb = mem_value;
370 s->cpu->tea = mem_value;
373 s->cpu->tra = mem_value & 0x000007ff;
375 case SH7750_EXPEVT_A7:
376 s->cpu->expevt = mem_value & 0x000007ff;
378 case SH7750_INTEVT_A7:
379 s->cpu->intevt = mem_value & 0x000007ff;
385 error_access("long write", addr);
390 static CPUReadMemoryFunc *sh7750_mem_read[] = {
396 static CPUWriteMemoryFunc *sh7750_mem_write[] = {
402 /* sh775x interrupt controller tables for sh_intc.c
403 * stolen from linux/arch/sh/kernel/cpu/sh4/setup-sh7750.c
409 /* interrupt sources */
410 IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
412 DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3,
413 DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7,
415 PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
416 PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3,
417 TMU3, TMU4, TMU0, TMU1, TMU2_TUNI, TMU2_TICPI,
418 RTC_ATI, RTC_PRI, RTC_CUI,
419 SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI,
420 SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI,
424 /* interrupt groups */
425 DMAC, PCIC1, TMU2, RTC, SCI1, SCIF, REF,
430 static struct intc_vect vectors[] = {
431 INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
432 INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
433 INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
434 INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
435 INTC_VECT(RTC_CUI, 0x4c0),
436 INTC_VECT(SCI1_ERI, 0x4e0), INTC_VECT(SCI1_RXI, 0x500),
437 INTC_VECT(SCI1_TXI, 0x520), INTC_VECT(SCI1_TEI, 0x540),
438 INTC_VECT(SCIF_ERI, 0x700), INTC_VECT(SCIF_RXI, 0x720),
439 INTC_VECT(SCIF_BRI, 0x740), INTC_VECT(SCIF_TXI, 0x760),
440 INTC_VECT(WDT, 0x560),
441 INTC_VECT(REF_RCMI, 0x580), INTC_VECT(REF_ROVI, 0x5a0),
444 static struct intc_group groups[] = {
445 INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI),
446 INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
447 INTC_GROUP(SCI1, SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI),
448 INTC_GROUP(SCIF, SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI),
449 INTC_GROUP(REF, REF_RCMI, REF_ROVI),
452 static struct intc_prio_reg prio_registers[] = {
453 { 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
454 { 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
455 { 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } },
456 { 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
457 { 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0,
459 PCIC1, PCIC0_PCISERR } },
462 /* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
464 static struct intc_vect vectors_dma4[] = {
465 INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
466 INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
467 INTC_VECT(DMAC_DMAE, 0x6c0),
470 static struct intc_group groups_dma4[] = {
471 INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
472 DMAC_DMTE3, DMAC_DMAE),
475 /* SH7750R and SH7751R both have 8-channel DMA controllers */
477 static struct intc_vect vectors_dma8[] = {
478 INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
479 INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
480 INTC_VECT(DMAC_DMTE4, 0x780), INTC_VECT(DMAC_DMTE5, 0x7a0),
481 INTC_VECT(DMAC_DMTE6, 0x7c0), INTC_VECT(DMAC_DMTE7, 0x7e0),
482 INTC_VECT(DMAC_DMAE, 0x6c0),
485 static struct intc_group groups_dma8[] = {
486 INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
487 DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5,
488 DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE),
491 /* SH7750R, SH7751 and SH7751R all have two extra timer channels */
493 static struct intc_vect vectors_tmu34[] = {
494 INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80),
497 static struct intc_mask_reg mask_registers[] = {
498 { 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
499 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
500 0, 0, 0, 0, 0, 0, TMU4, TMU3,
501 PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
502 PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2,
503 PCIC1_PCIDMA3, PCIC0_PCISERR } },
506 /* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */
508 static struct intc_vect vectors_irlm[] = {
509 INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
510 INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
513 /* SH7751 and SH7751R both have PCI */
515 static struct intc_vect vectors_pci[] = {
516 INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0),
517 INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0),
518 INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60),
519 INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20),
522 static struct intc_group groups_pci[] = {
523 INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
524 PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3),
527 #define SH_CPU_SH7750 (1 << 0)
528 #define SH_CPU_SH7750S (1 << 1)
529 #define SH_CPU_SH7750R (1 << 2)
530 #define SH_CPU_SH7751 (1 << 3)
531 #define SH_CPU_SH7751R (1 << 4)
532 #define SH_CPU_SH7750_ALL (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7750R)
533 #define SH_CPU_SH7751_ALL (SH_CPU_SH7751 | SH_CPU_SH7751R)
535 SH7750State *sh7750_init(CPUSH4State * cpu)
538 int sh7750_io_memory;
539 int cpu_model = SH_CPU_SH7751R; /* for now */
541 s = qemu_mallocz(sizeof(SH7750State));
543 s->periph_freq = 60000000; /* 60MHz */
544 sh7750_io_memory = cpu_register_io_memory(0,
546 sh7750_mem_write, s);
547 cpu_register_physical_memory(0x1c000000, 0x04000000, sh7750_io_memory);
549 sh_intc_init(&s->intc, NR_SOURCES,
550 _INTC_ARRAY(mask_registers),
551 _INTC_ARRAY(prio_registers));
553 sh_intc_register_sources(&s->intc,
554 _INTC_ARRAY(vectors),
555 _INTC_ARRAY(groups));
557 cpu->intc_handle = &s->intc;
559 sh_serial_init(0x1fe00000, 0, s->periph_freq, serial_hds[0],
560 sh_intc_source(&s->intc, SCI1_ERI),
561 sh_intc_source(&s->intc, SCI1_RXI),
562 sh_intc_source(&s->intc, SCI1_TXI),
563 sh_intc_source(&s->intc, SCI1_TEI),
565 sh_serial_init(0x1fe80000, SH_SERIAL_FEAT_SCIF,
566 s->periph_freq, serial_hds[1],
567 sh_intc_source(&s->intc, SCIF_ERI),
568 sh_intc_source(&s->intc, SCIF_RXI),
569 sh_intc_source(&s->intc, SCIF_TXI),
571 sh_intc_source(&s->intc, SCIF_BRI));
573 tmu012_init(0x1fd80000,
574 TMU012_FEAT_TOCR | TMU012_FEAT_3CHAN | TMU012_FEAT_EXTCLK,
576 sh_intc_source(&s->intc, TMU0),
577 sh_intc_source(&s->intc, TMU1),
578 sh_intc_source(&s->intc, TMU2_TUNI),
579 sh_intc_source(&s->intc, TMU2_TICPI));
581 if (cpu_model & (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7751)) {
582 sh_intc_register_sources(&s->intc,
583 _INTC_ARRAY(vectors_dma4),
584 _INTC_ARRAY(groups_dma4));
587 if (cpu_model & (SH_CPU_SH7750R | SH_CPU_SH7751R)) {
588 sh_intc_register_sources(&s->intc,
589 _INTC_ARRAY(vectors_dma8),
590 _INTC_ARRAY(groups_dma8));
593 if (cpu_model & (SH_CPU_SH7750R | SH_CPU_SH7751 | SH_CPU_SH7751R)) {
594 sh_intc_register_sources(&s->intc,
595 _INTC_ARRAY(vectors_tmu34),
597 tmu012_init(0x1e100000, 0, s->periph_freq,
598 sh_intc_source(&s->intc, TMU3),
599 sh_intc_source(&s->intc, TMU4),
603 if (cpu_model & (SH_CPU_SH7751_ALL)) {
604 sh_intc_register_sources(&s->intc,
605 _INTC_ARRAY(vectors_pci),
606 _INTC_ARRAY(groups_pci));
609 if (cpu_model & (SH_CPU_SH7750S | SH_CPU_SH7750R | SH_CPU_SH7751_ALL)) {
610 sh_intc_register_sources(&s->intc,
611 _INTC_ARRAY(vectors_irlm),