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"
38 typedef struct SH7750State {
41 /* Peripheral frequency in Hz */
43 /* SDRAM controller */
49 uint16_t portdira; /* Cached */
50 uint16_t portpullupa; /* Cached */
51 uint16_t portdirb; /* Cached */
52 uint16_t portpullupb; /* Cached */
55 uint16_t periph_pdtra; /* Imposed by the peripherals */
56 uint16_t periph_portdira; /* Direction seen from the peripherals */
57 uint16_t periph_pdtrb; /* Imposed by the peripherals */
58 uint16_t periph_portdirb; /* Direction seen from the peripherals */
59 sh7750_io_device *devices[NB_DEVICES]; /* External peripherals */
65 struct intc_desc intc;
69 /**********************************************************************
71 **********************************************************************/
73 int sh7750_register_io_device(SH7750State * s, sh7750_io_device * device)
77 for (i = 0; i < NB_DEVICES; i++) {
78 if (s->devices[i] == NULL) {
79 s->devices[i] = device;
86 static uint16_t portdir(uint32_t v)
88 #define EVENPORTMASK(n) ((v & (1<<((n)<<1))) >> (n))
90 EVENPORTMASK(15) | EVENPORTMASK(14) | EVENPORTMASK(13) |
91 EVENPORTMASK(12) | EVENPORTMASK(11) | EVENPORTMASK(10) |
92 EVENPORTMASK(9) | EVENPORTMASK(8) | EVENPORTMASK(7) |
93 EVENPORTMASK(6) | EVENPORTMASK(5) | EVENPORTMASK(4) |
94 EVENPORTMASK(3) | EVENPORTMASK(2) | EVENPORTMASK(1) |
98 static uint16_t portpullup(uint32_t v)
100 #define ODDPORTMASK(n) ((v & (1<<(((n)<<1)+1))) >> (n))
102 ODDPORTMASK(15) | ODDPORTMASK(14) | ODDPORTMASK(13) |
103 ODDPORTMASK(12) | ODDPORTMASK(11) | ODDPORTMASK(10) |
104 ODDPORTMASK(9) | ODDPORTMASK(8) | ODDPORTMASK(7) | ODDPORTMASK(6) |
105 ODDPORTMASK(5) | ODDPORTMASK(4) | ODDPORTMASK(3) | ODDPORTMASK(2) |
106 ODDPORTMASK(1) | ODDPORTMASK(0);
109 static uint16_t porta_lines(SH7750State * s)
111 return (s->portdira & s->pdtra) | /* CPU */
112 (s->periph_portdira & s->periph_pdtra) | /* Peripherals */
113 (~(s->portdira | s->periph_portdira) & s->portpullupa); /* Pullups */
116 static uint16_t portb_lines(SH7750State * s)
118 return (s->portdirb & s->pdtrb) | /* CPU */
119 (s->periph_portdirb & s->periph_pdtrb) | /* Peripherals */
120 (~(s->portdirb | s->periph_portdirb) & s->portpullupb); /* Pullups */
123 static void gen_port_interrupts(SH7750State * s)
125 /* XXXXX interrupts not generated */
128 static void porta_changed(SH7750State * s, uint16_t prev)
130 uint16_t currenta, changes;
134 fprintf(stderr, "porta changed from 0x%04x to 0x%04x\n",
135 prev, porta_lines(s));
136 fprintf(stderr, "pdtra=0x%04x, pctra=0x%08x\n", s->pdtra, s->pctra);
138 currenta = porta_lines(s);
139 if (currenta == prev)
141 changes = currenta ^ prev;
143 for (i = 0; i < NB_DEVICES; i++) {
144 if (s->devices[i] && (s->devices[i]->portamask_trigger & changes)) {
145 r |= s->devices[i]->port_change_cb(currenta, portb_lines(s),
149 &s->periph_portdirb);
154 gen_port_interrupts(s);
157 static void portb_changed(SH7750State * s, uint16_t prev)
159 uint16_t currentb, changes;
162 currentb = portb_lines(s);
163 if (currentb == prev)
165 changes = currentb ^ prev;
167 for (i = 0; i < NB_DEVICES; i++) {
168 if (s->devices[i] && (s->devices[i]->portbmask_trigger & changes)) {
169 r |= s->devices[i]->port_change_cb(portb_lines(s), currentb,
173 &s->periph_portdirb);
178 gen_port_interrupts(s);
181 /**********************************************************************
183 **********************************************************************/
185 static void error_access(const char *kind, target_phys_addr_t addr)
187 fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") not supported\n",
188 kind, regname(addr), addr);
191 static void ignore_access(const char *kind, target_phys_addr_t addr)
193 fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") ignored\n",
194 kind, regname(addr), addr);
197 static uint32_t sh7750_mem_readb(void *opaque, target_phys_addr_t addr)
201 error_access("byte read", addr);
206 static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr)
208 SH7750State *s = opaque;
211 case SH7750_FRQCR_A7:
215 "Read access to refresh count register, incrementing\n");
217 case SH7750_PDTRA_A7:
218 return porta_lines(s);
219 case SH7750_PDTRB_A7:
220 return portb_lines(s);
224 error_access("word read", addr);
229 static uint32_t sh7750_mem_readl(void *opaque, target_phys_addr_t addr)
231 SH7750State *s = opaque;
234 case SH7750_MMUCR_A7:
235 return s->cpu->mmucr;
246 case SH7750_EXPEVT_A7:
247 return s->cpu->expevt;
248 case SH7750_INTEVT_A7:
249 return s->cpu->intevt;
252 case 0x1f000030: /* Processor version */
254 case 0x1f000040: /* Cache version */
256 case 0x1f000044: /* Processor revision */
259 error_access("long read", addr);
264 static void sh7750_mem_writeb(void *opaque, target_phys_addr_t addr,
268 /* PRECHARGE ? XXXXX */
269 case SH7750_PRECHARGE0_A7:
270 case SH7750_PRECHARGE1_A7:
271 ignore_access("byte write", addr);
274 error_access("byte write", addr);
279 static void sh7750_mem_writew(void *opaque, target_phys_addr_t addr,
282 SH7750State *s = opaque;
286 /* SDRAM controller */
289 case SH7750_RTCOR_A7:
290 case SH7750_RTCNT_A7:
291 case SH7750_RTCSR_A7:
292 ignore_access("word write", addr);
295 case SH7750_PDTRA_A7:
296 temp = porta_lines(s);
297 s->pdtra = mem_value;
298 porta_changed(s, temp);
300 case SH7750_PDTRB_A7:
301 temp = portb_lines(s);
302 s->pdtrb = mem_value;
303 portb_changed(s, temp);
306 fprintf(stderr, "Write access to refresh count register\n");
309 case SH7750_GPIOIC_A7:
310 s->gpioic = mem_value;
311 if (mem_value != 0) {
312 fprintf(stderr, "I/O interrupts not implemented\n");
320 error_access("word write", addr);
325 static void sh7750_mem_writel(void *opaque, target_phys_addr_t addr,
328 SH7750State *s = opaque;
332 /* SDRAM controller */
339 ignore_access("long write", addr);
342 case SH7750_PCTRA_A7:
343 temp = porta_lines(s);
344 s->pctra = mem_value;
345 s->portdira = portdir(mem_value);
346 s->portpullupa = portpullup(mem_value);
347 porta_changed(s, temp);
349 case SH7750_PCTRB_A7:
350 temp = portb_lines(s);
351 s->pctrb = mem_value;
352 s->portdirb = portdir(mem_value);
353 s->portpullupb = portpullup(mem_value);
354 portb_changed(s, temp);
356 case SH7750_MMUCR_A7:
357 s->cpu->mmucr = mem_value;
360 /* If asid changes, clear all registered tlb entries. */
361 if ((s->cpu->pteh & 0xff) != (mem_value & 0xff))
362 tlb_flush(s->cpu, 1);
363 s->cpu->pteh = mem_value;
366 s->cpu->ptel = mem_value;
369 s->cpu->ptea = mem_value & 0x0000000f;
372 s->cpu->ttb = mem_value;
375 s->cpu->tea = mem_value;
378 s->cpu->tra = mem_value & 0x000007ff;
380 case SH7750_EXPEVT_A7:
381 s->cpu->expevt = mem_value & 0x000007ff;
383 case SH7750_INTEVT_A7:
384 s->cpu->intevt = mem_value & 0x000007ff;
390 error_access("long write", addr);
395 static CPUReadMemoryFunc *sh7750_mem_read[] = {
401 static CPUWriteMemoryFunc *sh7750_mem_write[] = {
407 /* sh775x interrupt controller tables for sh_intc.c
408 * stolen from linux/arch/sh/kernel/cpu/sh4/setup-sh7750.c
414 /* interrupt sources */
415 IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
417 DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3,
418 DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7,
420 PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
421 PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3,
422 TMU3, TMU4, TMU0, TMU1, TMU2_TUNI, TMU2_TICPI,
423 RTC_ATI, RTC_PRI, RTC_CUI,
424 SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI,
425 SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI,
429 /* interrupt groups */
430 DMAC, PCIC1, TMU2, RTC, SCI1, SCIF, REF,
435 static struct intc_vect vectors[] = {
436 INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
437 INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
438 INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
439 INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
440 INTC_VECT(RTC_CUI, 0x4c0),
441 INTC_VECT(SCI1_ERI, 0x4e0), INTC_VECT(SCI1_RXI, 0x500),
442 INTC_VECT(SCI1_TXI, 0x520), INTC_VECT(SCI1_TEI, 0x540),
443 INTC_VECT(SCIF_ERI, 0x700), INTC_VECT(SCIF_RXI, 0x720),
444 INTC_VECT(SCIF_BRI, 0x740), INTC_VECT(SCIF_TXI, 0x760),
445 INTC_VECT(WDT, 0x560),
446 INTC_VECT(REF_RCMI, 0x580), INTC_VECT(REF_ROVI, 0x5a0),
449 static struct intc_group groups[] = {
450 INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI),
451 INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
452 INTC_GROUP(SCI1, SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI),
453 INTC_GROUP(SCIF, SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI),
454 INTC_GROUP(REF, REF_RCMI, REF_ROVI),
457 static struct intc_prio_reg prio_registers[] = {
458 { 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
459 { 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
460 { 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } },
461 { 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
462 { 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0,
464 PCIC1, PCIC0_PCISERR } },
467 /* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
469 static struct intc_vect vectors_dma4[] = {
470 INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
471 INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
472 INTC_VECT(DMAC_DMAE, 0x6c0),
475 static struct intc_group groups_dma4[] = {
476 INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
477 DMAC_DMTE3, DMAC_DMAE),
480 /* SH7750R and SH7751R both have 8-channel DMA controllers */
482 static struct intc_vect vectors_dma8[] = {
483 INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
484 INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
485 INTC_VECT(DMAC_DMTE4, 0x780), INTC_VECT(DMAC_DMTE5, 0x7a0),
486 INTC_VECT(DMAC_DMTE6, 0x7c0), INTC_VECT(DMAC_DMTE7, 0x7e0),
487 INTC_VECT(DMAC_DMAE, 0x6c0),
490 static struct intc_group groups_dma8[] = {
491 INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
492 DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5,
493 DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE),
496 /* SH7750R, SH7751 and SH7751R all have two extra timer channels */
498 static struct intc_vect vectors_tmu34[] = {
499 INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80),
502 static struct intc_mask_reg mask_registers[] = {
503 { 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
504 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
505 0, 0, 0, 0, 0, 0, TMU4, TMU3,
506 PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
507 PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2,
508 PCIC1_PCIDMA3, PCIC0_PCISERR } },
511 /* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */
513 static struct intc_vect vectors_irlm[] = {
514 INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
515 INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
518 /* SH7751 and SH7751R both have PCI */
520 static struct intc_vect vectors_pci[] = {
521 INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0),
522 INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0),
523 INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60),
524 INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20),
527 static struct intc_group groups_pci[] = {
528 INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
529 PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3),
532 /**********************************************************************
533 Memory mapped cache and TLB
534 **********************************************************************/
536 #define MM_REGION_MASK 0x07000000
537 #define MM_ICACHE_ADDR (0)
538 #define MM_ICACHE_DATA (1)
539 #define MM_ITLB_ADDR (2)
540 #define MM_ITLB_DATA (3)
541 #define MM_OCACHE_ADDR (4)
542 #define MM_OCACHE_DATA (5)
543 #define MM_UTLB_ADDR (6)
544 #define MM_UTLB_DATA (7)
545 #define MM_REGION_TYPE(addr) ((addr & MM_REGION_MASK) >> 24)
547 static uint32_t invalid_read(void *opaque, target_phys_addr_t addr)
554 static uint32_t sh7750_mmct_readl(void *opaque, target_phys_addr_t addr)
558 switch (MM_REGION_TYPE(addr)) {
584 static void invalid_write(void *opaque, target_phys_addr_t addr,
590 static void sh7750_mmct_writel(void *opaque, target_phys_addr_t addr,
593 SH7750State *s = opaque;
595 switch (MM_REGION_TYPE(addr)) {
610 cpu_sh4_write_mmaped_utlb_addr(s->cpu, addr, mem_value);
622 static CPUReadMemoryFunc *sh7750_mmct_read[] = {
628 static CPUWriteMemoryFunc *sh7750_mmct_write[] = {
634 SH7750State *sh7750_init(CPUSH4State * cpu)
637 int sh7750_io_memory;
638 int sh7750_mm_cache_and_tlb; /* memory mapped cache and tlb */
640 s = qemu_mallocz(sizeof(SH7750State));
642 s->periph_freq = 60000000; /* 60MHz */
643 sh7750_io_memory = cpu_register_io_memory(0,
645 sh7750_mem_write, s);
646 cpu_register_physical_memory(0x1c000000, 0x04000000, sh7750_io_memory);
648 sh7750_mm_cache_and_tlb = cpu_register_io_memory(0,
650 sh7750_mmct_write, s);
651 cpu_register_physical_memory(0xf0000000, 0x08000000,
652 sh7750_mm_cache_and_tlb);
654 sh_intc_init(&s->intc, NR_SOURCES,
655 _INTC_ARRAY(mask_registers),
656 _INTC_ARRAY(prio_registers));
658 sh_intc_register_sources(&s->intc,
659 _INTC_ARRAY(vectors),
660 _INTC_ARRAY(groups));
662 cpu->intc_handle = &s->intc;
664 sh_serial_init(0x1fe00000, 0, s->periph_freq, serial_hds[0],
665 sh_intc_source(&s->intc, SCI1_ERI),
666 sh_intc_source(&s->intc, SCI1_RXI),
667 sh_intc_source(&s->intc, SCI1_TXI),
668 sh_intc_source(&s->intc, SCI1_TEI),
670 sh_serial_init(0x1fe80000, SH_SERIAL_FEAT_SCIF,
671 s->periph_freq, serial_hds[1],
672 sh_intc_source(&s->intc, SCIF_ERI),
673 sh_intc_source(&s->intc, SCIF_RXI),
674 sh_intc_source(&s->intc, SCIF_TXI),
676 sh_intc_source(&s->intc, SCIF_BRI));
678 tmu012_init(0x1fd80000,
679 TMU012_FEAT_TOCR | TMU012_FEAT_3CHAN | TMU012_FEAT_EXTCLK,
681 sh_intc_source(&s->intc, TMU0),
682 sh_intc_source(&s->intc, TMU1),
683 sh_intc_source(&s->intc, TMU2_TUNI),
684 sh_intc_source(&s->intc, TMU2_TICPI));
686 if (cpu->id & (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7751)) {
687 sh_intc_register_sources(&s->intc,
688 _INTC_ARRAY(vectors_dma4),
689 _INTC_ARRAY(groups_dma4));
692 if (cpu->id & (SH_CPU_SH7750R | SH_CPU_SH7751R)) {
693 sh_intc_register_sources(&s->intc,
694 _INTC_ARRAY(vectors_dma8),
695 _INTC_ARRAY(groups_dma8));
698 if (cpu->id & (SH_CPU_SH7750R | SH_CPU_SH7751 | SH_CPU_SH7751R)) {
699 sh_intc_register_sources(&s->intc,
700 _INTC_ARRAY(vectors_tmu34),
702 tmu012_init(0x1e100000, 0, s->periph_freq,
703 sh_intc_source(&s->intc, TMU3),
704 sh_intc_source(&s->intc, TMU4),
708 if (cpu->id & (SH_CPU_SH7751_ALL)) {
709 sh_intc_register_sources(&s->intc,
710 _INTC_ARRAY(vectors_pci),
711 _INTC_ARRAY(groups_pci));
714 if (cpu->id & (SH_CPU_SH7750S | SH_CPU_SH7750R | SH_CPU_SH7751_ALL)) {
715 sh_intc_register_sources(&s->intc,
716 _INTC_ARRAY(vectors_irlm),