/* * SH7750 device * * Copyright (c) 2007 Magnus Damm * Copyright (c) 2005 Samuel Tardieu * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include #include #include "hw.h" #include "sh.h" #include "sysemu.h" #include "sh7750_regs.h" #include "sh7750_regnames.h" #include "sh_intc.h" #include "exec-all.h" #include "cpu.h" #define NB_DEVICES 4 typedef struct SH7750State { /* CPU */ CPUSH4State *cpu; /* Peripheral frequency in Hz */ uint32_t periph_freq; /* SDRAM controller */ uint16_t rfcr; /* IO ports */ uint16_t gpioic; uint32_t pctra; uint32_t pctrb; uint16_t portdira; /* Cached */ uint16_t portpullupa; /* Cached */ uint16_t portdirb; /* Cached */ uint16_t portpullupb; /* Cached */ uint16_t pdtra; uint16_t pdtrb; uint16_t periph_pdtra; /* Imposed by the peripherals */ uint16_t periph_portdira; /* Direction seen from the peripherals */ uint16_t periph_pdtrb; /* Imposed by the peripherals */ uint16_t periph_portdirb; /* Direction seen from the peripherals */ sh7750_io_device *devices[NB_DEVICES]; /* External peripherals */ uint16_t icr; /* Cache */ uint32_t ccr; struct intc_desc intc; } SH7750State; /********************************************************************** I/O ports **********************************************************************/ int sh7750_register_io_device(SH7750State * s, sh7750_io_device * device) { int i; for (i = 0; i < NB_DEVICES; i++) { if (s->devices[i] == NULL) { s->devices[i] = device; return 0; } } return -1; } static uint16_t portdir(uint32_t v) { #define EVENPORTMASK(n) ((v & (1<<((n)<<1))) >> (n)) return EVENPORTMASK(15) | EVENPORTMASK(14) | EVENPORTMASK(13) | EVENPORTMASK(12) | EVENPORTMASK(11) | EVENPORTMASK(10) | EVENPORTMASK(9) | EVENPORTMASK(8) | EVENPORTMASK(7) | EVENPORTMASK(6) | EVENPORTMASK(5) | EVENPORTMASK(4) | EVENPORTMASK(3) | EVENPORTMASK(2) | EVENPORTMASK(1) | EVENPORTMASK(0); } static uint16_t portpullup(uint32_t v) { #define ODDPORTMASK(n) ((v & (1<<(((n)<<1)+1))) >> (n)) return ODDPORTMASK(15) | ODDPORTMASK(14) | ODDPORTMASK(13) | ODDPORTMASK(12) | ODDPORTMASK(11) | ODDPORTMASK(10) | ODDPORTMASK(9) | ODDPORTMASK(8) | ODDPORTMASK(7) | ODDPORTMASK(6) | ODDPORTMASK(5) | ODDPORTMASK(4) | ODDPORTMASK(3) | ODDPORTMASK(2) | ODDPORTMASK(1) | ODDPORTMASK(0); } static uint16_t porta_lines(SH7750State * s) { return (s->portdira & s->pdtra) | /* CPU */ (s->periph_portdira & s->periph_pdtra) | /* Peripherals */ (~(s->portdira | s->periph_portdira) & s->portpullupa); /* Pullups */ } static uint16_t portb_lines(SH7750State * s) { return (s->portdirb & s->pdtrb) | /* CPU */ (s->periph_portdirb & s->periph_pdtrb) | /* Peripherals */ (~(s->portdirb | s->periph_portdirb) & s->portpullupb); /* Pullups */ } static void gen_port_interrupts(SH7750State * s) { /* XXXXX interrupts not generated */ } static void porta_changed(SH7750State * s, uint16_t prev) { uint16_t currenta, changes; int i, r = 0; #if 0 fprintf(stderr, "porta changed from 0x%04x to 0x%04x\n", prev, porta_lines(s)); fprintf(stderr, "pdtra=0x%04x, pctra=0x%08x\n", s->pdtra, s->pctra); #endif currenta = porta_lines(s); if (currenta == prev) return; changes = currenta ^ prev; for (i = 0; i < NB_DEVICES; i++) { if (s->devices[i] && (s->devices[i]->portamask_trigger & changes)) { r |= s->devices[i]->port_change_cb(currenta, portb_lines(s), &s->periph_pdtra, &s->periph_portdira, &s->periph_pdtrb, &s->periph_portdirb); } } if (r) gen_port_interrupts(s); } static void portb_changed(SH7750State * s, uint16_t prev) { uint16_t currentb, changes; int i, r = 0; currentb = portb_lines(s); if (currentb == prev) return; changes = currentb ^ prev; for (i = 0; i < NB_DEVICES; i++) { if (s->devices[i] && (s->devices[i]->portbmask_trigger & changes)) { r |= s->devices[i]->port_change_cb(portb_lines(s), currentb, &s->periph_pdtra, &s->periph_portdira, &s->periph_pdtrb, &s->periph_portdirb); } } if (r) gen_port_interrupts(s); } /********************************************************************** Memory **********************************************************************/ static void error_access(const char *kind, target_phys_addr_t addr) { fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") not supported\n", kind, regname(addr), addr); } static void ignore_access(const char *kind, target_phys_addr_t addr) { fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") ignored\n", kind, regname(addr), addr); } static uint32_t sh7750_mem_readb(void *opaque, target_phys_addr_t addr) { switch (addr) { default: error_access("byte read", addr); assert(0); } } static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr) { SH7750State *s = opaque; switch (addr) { case SH7750_FRQCR_A7: return 0; case SH7750_RFCR_A7: fprintf(stderr, "Read access to refresh count register, incrementing\n"); return s->rfcr++; case SH7750_PDTRA_A7: return porta_lines(s); case SH7750_PDTRB_A7: return portb_lines(s); case 0x1fd00000: return s->icr; default: error_access("word read", addr); assert(0); } } static uint32_t sh7750_mem_readl(void *opaque, target_phys_addr_t addr) { SH7750State *s = opaque; switch (addr) { case SH7750_MMUCR_A7: return s->cpu->mmucr; case SH7750_PTEH_A7: return s->cpu->pteh; case SH7750_PTEL_A7: return s->cpu->ptel; case SH7750_TTB_A7: return s->cpu->ttb; case SH7750_TEA_A7: return s->cpu->tea; case SH7750_TRA_A7: return s->cpu->tra; case SH7750_EXPEVT_A7: return s->cpu->expevt; case SH7750_INTEVT_A7: return s->cpu->intevt; case SH7750_CCR_A7: return s->ccr; case 0x1f000030: /* Processor version */ return s->cpu->pvr; case 0x1f000040: /* Cache version */ return s->cpu->cvr; case 0x1f000044: /* Processor revision */ return s->cpu->prr; default: error_access("long read", addr); assert(0); } } static void sh7750_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t mem_value) { switch (addr) { /* PRECHARGE ? XXXXX */ case SH7750_PRECHARGE0_A7: case SH7750_PRECHARGE1_A7: ignore_access("byte write", addr); return; default: error_access("byte write", addr); assert(0); } } static void sh7750_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t mem_value) { SH7750State *s = opaque; uint16_t temp; switch (addr) { /* SDRAM controller */ case SH7750_BCR2_A7: case SH7750_BCR3_A7: case SH7750_RTCOR_A7: case SH7750_RTCNT_A7: case SH7750_RTCSR_A7: ignore_access("word write", addr); return; /* IO ports */ case SH7750_PDTRA_A7: temp = porta_lines(s); s->pdtra = mem_value; porta_changed(s, temp); return; case SH7750_PDTRB_A7: temp = portb_lines(s); s->pdtrb = mem_value; portb_changed(s, temp); return; case SH7750_RFCR_A7: fprintf(stderr, "Write access to refresh count register\n"); s->rfcr = mem_value; return; case SH7750_GPIOIC_A7: s->gpioic = mem_value; if (mem_value != 0) { fprintf(stderr, "I/O interrupts not implemented\n"); assert(0); } return; case 0x1fd00000: s->icr = mem_value; return; default: error_access("word write", addr); assert(0); } } static void sh7750_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t mem_value) { SH7750State *s = opaque; uint16_t temp; switch (addr) { /* SDRAM controller */ case SH7750_BCR1_A7: case SH7750_BCR4_A7: case SH7750_WCR1_A7: case SH7750_WCR2_A7: case SH7750_WCR3_A7: case SH7750_MCR_A7: ignore_access("long write", addr); return; /* IO ports */ case SH7750_PCTRA_A7: temp = porta_lines(s); s->pctra = mem_value; s->portdira = portdir(mem_value); s->portpullupa = portpullup(mem_value); porta_changed(s, temp); return; case SH7750_PCTRB_A7: temp = portb_lines(s); s->pctrb = mem_value; s->portdirb = portdir(mem_value); s->portpullupb = portpullup(mem_value); portb_changed(s, temp); return; case SH7750_MMUCR_A7: s->cpu->mmucr = mem_value; return; case SH7750_PTEH_A7: /* If asid changes, clear all registered tlb entries. */ if ((s->cpu->pteh & 0xff) != (mem_value & 0xff)) tlb_flush(s->cpu, 1); s->cpu->pteh = mem_value; return; case SH7750_PTEL_A7: s->cpu->ptel = mem_value; return; case SH7750_PTEA_A7: s->cpu->ptea = mem_value & 0x0000000f; return; case SH7750_TTB_A7: s->cpu->ttb = mem_value; return; case SH7750_TEA_A7: s->cpu->tea = mem_value; return; case SH7750_TRA_A7: s->cpu->tra = mem_value & 0x000007ff; return; case SH7750_EXPEVT_A7: s->cpu->expevt = mem_value & 0x000007ff; return; case SH7750_INTEVT_A7: s->cpu->intevt = mem_value & 0x000007ff; return; case SH7750_CCR_A7: s->ccr = mem_value; return; default: error_access("long write", addr); assert(0); } } static CPUReadMemoryFunc *sh7750_mem_read[] = { sh7750_mem_readb, sh7750_mem_readw, sh7750_mem_readl }; static CPUWriteMemoryFunc *sh7750_mem_write[] = { sh7750_mem_writeb, sh7750_mem_writew, sh7750_mem_writel }; /* sh775x interrupt controller tables for sh_intc.c * stolen from linux/arch/sh/kernel/cpu/sh4/setup-sh7750.c */ enum { UNUSED = 0, /* interrupt sources */ IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */ HUDI, GPIOI, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE, PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON, PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3, TMU3, TMU4, TMU0, TMU1, TMU2_TUNI, TMU2_TICPI, RTC_ATI, RTC_PRI, RTC_CUI, SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI, SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI, WDT, REF_RCMI, REF_ROVI, /* interrupt groups */ DMAC, PCIC1, TMU2, RTC, SCI1, SCIF, REF, NR_SOURCES, }; static struct intc_vect vectors[] = { INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620), INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420), INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460), INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0), INTC_VECT(RTC_CUI, 0x4c0), INTC_VECT(SCI1_ERI, 0x4e0), INTC_VECT(SCI1_RXI, 0x500), INTC_VECT(SCI1_TXI, 0x520), INTC_VECT(SCI1_TEI, 0x540), INTC_VECT(SCIF_ERI, 0x700), INTC_VECT(SCIF_RXI, 0x720), INTC_VECT(SCIF_BRI, 0x740), INTC_VECT(SCIF_TXI, 0x760), INTC_VECT(WDT, 0x560), INTC_VECT(REF_RCMI, 0x580), INTC_VECT(REF_ROVI, 0x5a0), }; static struct intc_group groups[] = { INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI), INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI), INTC_GROUP(SCI1, SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI), INTC_GROUP(SCIF, SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI), INTC_GROUP(REF, REF_RCMI, REF_ROVI), }; static struct intc_prio_reg prio_registers[] = { { 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } }, { 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } }, { 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } }, { 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } }, { 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0, TMU4, TMU3, PCIC1, PCIC0_PCISERR } }, }; /* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */ static struct intc_vect vectors_dma4[] = { INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660), INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0), INTC_VECT(DMAC_DMAE, 0x6c0), }; static struct intc_group groups_dma4[] = { INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3, DMAC_DMAE), }; /* SH7750R and SH7751R both have 8-channel DMA controllers */ static struct intc_vect vectors_dma8[] = { INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660), INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0), INTC_VECT(DMAC_DMTE4, 0x780), INTC_VECT(DMAC_DMTE5, 0x7a0), INTC_VECT(DMAC_DMTE6, 0x7c0), INTC_VECT(DMAC_DMTE7, 0x7e0), INTC_VECT(DMAC_DMAE, 0x6c0), }; static struct intc_group groups_dma8[] = { INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE), }; /* SH7750R, SH7751 and SH7751R all have two extra timer channels */ static struct intc_vect vectors_tmu34[] = { INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80), }; static struct intc_mask_reg mask_registers[] = { { 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, TMU4, TMU3, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON, PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3, PCIC0_PCISERR } }, }; /* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */ static struct intc_vect vectors_irlm[] = { INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0), INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360), }; /* SH7751 and SH7751R both have PCI */ static struct intc_vect vectors_pci[] = { INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0), INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0), INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60), INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20), }; static struct intc_group groups_pci[] = { INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON, PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3), }; /********************************************************************** Memory mapped cache and TLB **********************************************************************/ #define MM_REGION_MASK 0x07000000 #define MM_ICACHE_ADDR (0) #define MM_ICACHE_DATA (1) #define MM_ITLB_ADDR (2) #define MM_ITLB_DATA (3) #define MM_OCACHE_ADDR (4) #define MM_OCACHE_DATA (5) #define MM_UTLB_ADDR (6) #define MM_UTLB_DATA (7) #define MM_REGION_TYPE(addr) ((addr & MM_REGION_MASK) >> 24) static uint32_t invalid_read(void *opaque, target_phys_addr_t addr) { assert(0); return 0; } static uint32_t sh7750_mmct_readl(void *opaque, target_phys_addr_t addr) { uint32_t ret = 0; switch (MM_REGION_TYPE(addr)) { case MM_ICACHE_ADDR: case MM_ICACHE_DATA: /* do nothing */ break; case MM_ITLB_ADDR: case MM_ITLB_DATA: /* XXXXX */ assert(0); break; case MM_OCACHE_ADDR: case MM_OCACHE_DATA: /* do nothing */ break; case MM_UTLB_ADDR: case MM_UTLB_DATA: /* XXXXX */ assert(0); break; default: assert(0); } return ret; } static void invalid_write(void *opaque, target_phys_addr_t addr, uint32_t mem_value) { assert(0); } static void sh7750_mmct_writel(void *opaque, target_phys_addr_t addr, uint32_t mem_value) { SH7750State *s = opaque; switch (MM_REGION_TYPE(addr)) { case MM_ICACHE_ADDR: case MM_ICACHE_DATA: /* do nothing */ break; case MM_ITLB_ADDR: case MM_ITLB_DATA: /* XXXXX */ assert(0); break; case MM_OCACHE_ADDR: case MM_OCACHE_DATA: /* do nothing */ break; case MM_UTLB_ADDR: cpu_sh4_write_mmaped_utlb_addr(s->cpu, addr, mem_value); break; case MM_UTLB_DATA: /* XXXXX */ assert(0); break; default: assert(0); break; } } static CPUReadMemoryFunc *sh7750_mmct_read[] = { invalid_read, invalid_read, sh7750_mmct_readl }; static CPUWriteMemoryFunc *sh7750_mmct_write[] = { invalid_write, invalid_write, sh7750_mmct_writel }; SH7750State *sh7750_init(CPUSH4State * cpu) { SH7750State *s; int sh7750_io_memory; int sh7750_mm_cache_and_tlb; /* memory mapped cache and tlb */ s = qemu_mallocz(sizeof(SH7750State)); s->cpu = cpu; s->periph_freq = 60000000; /* 60MHz */ sh7750_io_memory = cpu_register_io_memory(0, sh7750_mem_read, sh7750_mem_write, s); cpu_register_physical_memory(0x1c000000, 0x04000000, sh7750_io_memory); sh7750_mm_cache_and_tlb = cpu_register_io_memory(0, sh7750_mmct_read, sh7750_mmct_write, s); cpu_register_physical_memory(0xf0000000, 0x08000000, sh7750_mm_cache_and_tlb); sh_intc_init(&s->intc, NR_SOURCES, _INTC_ARRAY(mask_registers), _INTC_ARRAY(prio_registers)); sh_intc_register_sources(&s->intc, _INTC_ARRAY(vectors), _INTC_ARRAY(groups)); cpu->intc_handle = &s->intc; sh_serial_init(0x1fe00000, 0, s->periph_freq, serial_hds[0], sh_intc_source(&s->intc, SCI1_ERI), sh_intc_source(&s->intc, SCI1_RXI), sh_intc_source(&s->intc, SCI1_TXI), sh_intc_source(&s->intc, SCI1_TEI), NULL); sh_serial_init(0x1fe80000, SH_SERIAL_FEAT_SCIF, s->periph_freq, serial_hds[1], sh_intc_source(&s->intc, SCIF_ERI), sh_intc_source(&s->intc, SCIF_RXI), sh_intc_source(&s->intc, SCIF_TXI), NULL, sh_intc_source(&s->intc, SCIF_BRI)); tmu012_init(0x1fd80000, TMU012_FEAT_TOCR | TMU012_FEAT_3CHAN | TMU012_FEAT_EXTCLK, s->periph_freq, s->intc.irqs[TMU0], s->intc.irqs[TMU1], s->intc.irqs[TMU2_TUNI], s->intc.irqs[TMU2_TICPI]); if (cpu->id & (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7751)) { sh_intc_register_sources(&s->intc, _INTC_ARRAY(vectors_dma4), _INTC_ARRAY(groups_dma4)); } if (cpu->id & (SH_CPU_SH7750R | SH_CPU_SH7751R)) { sh_intc_register_sources(&s->intc, _INTC_ARRAY(vectors_dma8), _INTC_ARRAY(groups_dma8)); } if (cpu->id & (SH_CPU_SH7750R | SH_CPU_SH7751 | SH_CPU_SH7751R)) { sh_intc_register_sources(&s->intc, _INTC_ARRAY(vectors_tmu34), NULL, 0); tmu012_init(0x1e100000, 0, s->periph_freq, s->intc.irqs[TMU3], s->intc.irqs[TMU4], NULL, NULL); } if (cpu->id & (SH_CPU_SH7751_ALL)) { sh_intc_register_sources(&s->intc, _INTC_ARRAY(vectors_pci), _INTC_ARRAY(groups_pci)); } if (cpu->id & (SH_CPU_SH7750S | SH_CPU_SH7750R | SH_CPU_SH7751_ALL)) { sh_intc_register_sources(&s->intc, _INTC_ARRAY(vectors_irlm), NULL, 0); } return s; }