diff options
Diffstat (limited to 'src/hw/sh4/sh7750.c')
| -rw-r--r-- | src/hw/sh4/sh7750.c | 842 |
1 files changed, 842 insertions, 0 deletions
diff --git a/src/hw/sh4/sh7750.c b/src/hw/sh4/sh7750.c new file mode 100644 index 0000000..5dda5de --- /dev/null +++ b/src/hw/sh4/sh7750.c @@ -0,0 +1,842 @@ +/* + * 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 <stdio.h> +#include "hw/hw.h" +#include "hw/sh4/sh.h" +#include "sysemu/sysemu.h" +#include "sh7750_regs.h" +#include "sh7750_regnames.h" +#include "hw/sh4/sh_intc.h" +#include "cpu.h" +#include "exec/address-spaces.h" + +#define NB_DEVICES 4 + +typedef struct SH7750State { + MemoryRegion iomem; + MemoryRegion iomem_1f0; + MemoryRegion iomem_ff0; + MemoryRegion iomem_1f8; + MemoryRegion iomem_ff8; + MemoryRegion iomem_1fc; + MemoryRegion iomem_ffc; + MemoryRegion mmct_iomem; + /* CPU */ + SuperHCPU *cpu; + /* Peripheral frequency in Hz */ + uint32_t periph_freq; + /* SDRAM controller */ + uint32_t bcr1; + uint16_t bcr2; + uint16_t bcr3; + uint32_t bcr4; + uint16_t rfcr; + /* PCMCIA controller */ + uint16_t pcr; + /* 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 */ + + /* Cache */ + uint32_t ccr; + + struct intc_desc intc; +} SH7750State; + +static inline int has_bcr3_and_bcr4(SH7750State * s) +{ + return s->cpu->env.features & SH_FEATURE_BCR3_AND_BCR4; +} +/********************************************************************** + 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, hwaddr addr) +{ + fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") not supported\n", + kind, regname(addr), addr); +} + +static void ignore_access(const char *kind, hwaddr addr) +{ + fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") ignored\n", + kind, regname(addr), addr); +} + +static uint32_t sh7750_mem_readb(void *opaque, hwaddr addr) +{ + switch (addr) { + default: + error_access("byte read", addr); + abort(); + } +} + +static uint32_t sh7750_mem_readw(void *opaque, hwaddr addr) +{ + SH7750State *s = opaque; + + switch (addr) { + case SH7750_BCR2_A7: + return s->bcr2; + case SH7750_BCR3_A7: + if(!has_bcr3_and_bcr4(s)) + error_access("word read", addr); + return s->bcr3; + case SH7750_FRQCR_A7: + return 0; + case SH7750_PCR_A7: + return s->pcr; + 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 SH7750_RTCOR_A7: + case SH7750_RTCNT_A7: + case SH7750_RTCSR_A7: + ignore_access("word read", addr); + return 0; + default: + error_access("word read", addr); + abort(); + } +} + +static uint32_t sh7750_mem_readl(void *opaque, hwaddr addr) +{ + SH7750State *s = opaque; + SuperHCPUClass *scc; + + switch (addr) { + case SH7750_BCR1_A7: + return s->bcr1; + case SH7750_BCR4_A7: + if(!has_bcr3_and_bcr4(s)) + error_access("long read", addr); + return s->bcr4; + case SH7750_WCR1_A7: + case SH7750_WCR2_A7: + case SH7750_WCR3_A7: + case SH7750_MCR_A7: + ignore_access("long read", addr); + return 0; + case SH7750_MMUCR_A7: + return s->cpu->env.mmucr; + case SH7750_PTEH_A7: + return s->cpu->env.pteh; + case SH7750_PTEL_A7: + return s->cpu->env.ptel; + case SH7750_TTB_A7: + return s->cpu->env.ttb; + case SH7750_TEA_A7: + return s->cpu->env.tea; + case SH7750_TRA_A7: + return s->cpu->env.tra; + case SH7750_EXPEVT_A7: + return s->cpu->env.expevt; + case SH7750_INTEVT_A7: + return s->cpu->env.intevt; + case SH7750_CCR_A7: + return s->ccr; + case 0x1f000030: /* Processor version */ + scc = SUPERH_CPU_GET_CLASS(s->cpu); + return scc->pvr; + case 0x1f000040: /* Cache version */ + scc = SUPERH_CPU_GET_CLASS(s->cpu); + return scc->cvr; + case 0x1f000044: /* Processor revision */ + scc = SUPERH_CPU_GET_CLASS(s->cpu); + return scc->prr; + default: + error_access("long read", addr); + abort(); + } +} + +#define is_in_sdrmx(a, x) (a >= SH7750_SDMR ## x ## _A7 \ + && a <= (SH7750_SDMR ## x ## _A7 + SH7750_SDMR ## x ## _REGNB)) +static void sh7750_mem_writeb(void *opaque, hwaddr addr, + uint32_t mem_value) +{ + + if (is_in_sdrmx(addr, 2) || is_in_sdrmx(addr, 3)) { + ignore_access("byte write", addr); + return; + } + + error_access("byte write", addr); + abort(); +} + +static void sh7750_mem_writew(void *opaque, hwaddr addr, + uint32_t mem_value) +{ + SH7750State *s = opaque; + uint16_t temp; + + switch (addr) { + /* SDRAM controller */ + case SH7750_BCR2_A7: + s->bcr2 = mem_value; + return; + case SH7750_BCR3_A7: + if(!has_bcr3_and_bcr4(s)) + error_access("word write", addr); + s->bcr3 = mem_value; + return; + case SH7750_PCR_A7: + s->pcr = mem_value; + return; + case SH7750_RTCNT_A7: + case SH7750_RTCOR_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"); + abort(); + } + return; + default: + error_access("word write", addr); + abort(); + } +} + +static void sh7750_mem_writel(void *opaque, hwaddr addr, + uint32_t mem_value) +{ + SH7750State *s = opaque; + uint16_t temp; + + switch (addr) { + /* SDRAM controller */ + case SH7750_BCR1_A7: + s->bcr1 = mem_value; + return; + case SH7750_BCR4_A7: + if(!has_bcr3_and_bcr4(s)) + error_access("long write", addr); + s->bcr4 = mem_value; + return; + 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: + if (mem_value & MMUCR_TI) { + cpu_sh4_invalidate_tlb(&s->cpu->env); + } + s->cpu->env.mmucr = mem_value & ~MMUCR_TI; + return; + case SH7750_PTEH_A7: + /* If asid changes, clear all registered tlb entries. */ + if ((s->cpu->env.pteh & 0xff) != (mem_value & 0xff)) { + tlb_flush(CPU(s->cpu), 1); + } + s->cpu->env.pteh = mem_value; + return; + case SH7750_PTEL_A7: + s->cpu->env.ptel = mem_value; + return; + case SH7750_PTEA_A7: + s->cpu->env.ptea = mem_value & 0x0000000f; + return; + case SH7750_TTB_A7: + s->cpu->env.ttb = mem_value; + return; + case SH7750_TEA_A7: + s->cpu->env.tea = mem_value; + return; + case SH7750_TRA_A7: + s->cpu->env.tra = mem_value & 0x000007ff; + return; + case SH7750_EXPEVT_A7: + s->cpu->env.expevt = mem_value & 0x000007ff; + return; + case SH7750_INTEVT_A7: + s->cpu->env.intevt = mem_value & 0x000007ff; + return; + case SH7750_CCR_A7: + s->ccr = mem_value; + return; + default: + error_access("long write", addr); + abort(); + } +} + +static const MemoryRegionOps sh7750_mem_ops = { + .old_mmio = { + .read = {sh7750_mem_readb, + sh7750_mem_readw, + sh7750_mem_readl }, + .write = {sh7750_mem_writeb, + sh7750_mem_writew, + sh7750_mem_writel }, + }, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +/* sh775x interrupt controller tables for sh_intc.c + * stolen from linux/arch/sh/kernel/cpu/sh4/setup-sh7750.c + */ + +enum { + UNUSED = 0, + + /* interrupt sources */ + IRL_0, IRL_1, IRL_2, IRL_3, IRL_4, IRL_5, IRL_6, IRL_7, + IRL_8, IRL_9, IRL_A, IRL_B, IRL_C, IRL_D, IRL_E, + IRL0, IRL1, IRL2, IRL3, + 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, + /* irl bundle */ + IRL, + + 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), +}; + +static struct intc_vect vectors_irl[] = { + INTC_VECT(IRL_0, 0x200), + INTC_VECT(IRL_1, 0x220), + INTC_VECT(IRL_2, 0x240), + INTC_VECT(IRL_3, 0x260), + INTC_VECT(IRL_4, 0x280), + INTC_VECT(IRL_5, 0x2a0), + INTC_VECT(IRL_6, 0x2c0), + INTC_VECT(IRL_7, 0x2e0), + INTC_VECT(IRL_8, 0x300), + INTC_VECT(IRL_9, 0x320), + INTC_VECT(IRL_A, 0x340), + INTC_VECT(IRL_B, 0x360), + INTC_VECT(IRL_C, 0x380), + INTC_VECT(IRL_D, 0x3a0), + INTC_VECT(IRL_E, 0x3c0), +}; + +static struct intc_group groups_irl[] = { + INTC_GROUP(IRL, IRL_0, IRL_1, IRL_2, IRL_3, IRL_4, IRL_5, IRL_6, + IRL_7, IRL_8, IRL_9, IRL_A, IRL_B, IRL_C, IRL_D, IRL_E), +}; + +/********************************************************************** + 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 uint64_t invalid_read(void *opaque, hwaddr addr) +{ + abort(); + + return 0; +} + +static uint64_t sh7750_mmct_read(void *opaque, hwaddr addr, + unsigned size) +{ + SH7750State *s = opaque; + uint32_t ret = 0; + + if (size != 4) { + return invalid_read(opaque, addr); + } + + switch (MM_REGION_TYPE(addr)) { + case MM_ICACHE_ADDR: + case MM_ICACHE_DATA: + /* do nothing */ + break; + case MM_ITLB_ADDR: + ret = cpu_sh4_read_mmaped_itlb_addr(&s->cpu->env, addr); + break; + case MM_ITLB_DATA: + ret = cpu_sh4_read_mmaped_itlb_data(&s->cpu->env, addr); + break; + case MM_OCACHE_ADDR: + case MM_OCACHE_DATA: + /* do nothing */ + break; + case MM_UTLB_ADDR: + ret = cpu_sh4_read_mmaped_utlb_addr(&s->cpu->env, addr); + break; + case MM_UTLB_DATA: + ret = cpu_sh4_read_mmaped_utlb_data(&s->cpu->env, addr); + break; + default: + abort(); + } + + return ret; +} + +static void invalid_write(void *opaque, hwaddr addr, + uint64_t mem_value) +{ + abort(); +} + +static void sh7750_mmct_write(void *opaque, hwaddr addr, + uint64_t mem_value, unsigned size) +{ + SH7750State *s = opaque; + + if (size != 4) { + invalid_write(opaque, addr, mem_value); + } + + switch (MM_REGION_TYPE(addr)) { + case MM_ICACHE_ADDR: + case MM_ICACHE_DATA: + /* do nothing */ + break; + case MM_ITLB_ADDR: + cpu_sh4_write_mmaped_itlb_addr(&s->cpu->env, addr, mem_value); + break; + case MM_ITLB_DATA: + cpu_sh4_write_mmaped_itlb_data(&s->cpu->env, addr, mem_value); + abort(); + break; + case MM_OCACHE_ADDR: + case MM_OCACHE_DATA: + /* do nothing */ + break; + case MM_UTLB_ADDR: + cpu_sh4_write_mmaped_utlb_addr(&s->cpu->env, addr, mem_value); + break; + case MM_UTLB_DATA: + cpu_sh4_write_mmaped_utlb_data(&s->cpu->env, addr, mem_value); + break; + default: + abort(); + break; + } +} + +static const MemoryRegionOps sh7750_mmct_ops = { + .read = sh7750_mmct_read, + .write = sh7750_mmct_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +SH7750State *sh7750_init(SuperHCPU *cpu, MemoryRegion *sysmem) +{ + SH7750State *s; + + s = g_malloc0(sizeof(SH7750State)); + s->cpu = cpu; + s->periph_freq = 60000000; /* 60MHz */ + memory_region_init_io(&s->iomem, NULL, &sh7750_mem_ops, s, + "memory", 0x1fc01000); + + memory_region_init_alias(&s->iomem_1f0, NULL, "memory-1f0", + &s->iomem, 0x1f000000, 0x1000); + memory_region_add_subregion(sysmem, 0x1f000000, &s->iomem_1f0); + + memory_region_init_alias(&s->iomem_ff0, NULL, "memory-ff0", + &s->iomem, 0x1f000000, 0x1000); + memory_region_add_subregion(sysmem, 0xff000000, &s->iomem_ff0); + + memory_region_init_alias(&s->iomem_1f8, NULL, "memory-1f8", + &s->iomem, 0x1f800000, 0x1000); + memory_region_add_subregion(sysmem, 0x1f800000, &s->iomem_1f8); + + memory_region_init_alias(&s->iomem_ff8, NULL, "memory-ff8", + &s->iomem, 0x1f800000, 0x1000); + memory_region_add_subregion(sysmem, 0xff800000, &s->iomem_ff8); + + memory_region_init_alias(&s->iomem_1fc, NULL, "memory-1fc", + &s->iomem, 0x1fc00000, 0x1000); + memory_region_add_subregion(sysmem, 0x1fc00000, &s->iomem_1fc); + + memory_region_init_alias(&s->iomem_ffc, NULL, "memory-ffc", + &s->iomem, 0x1fc00000, 0x1000); + memory_region_add_subregion(sysmem, 0xffc00000, &s->iomem_ffc); + + memory_region_init_io(&s->mmct_iomem, NULL, &sh7750_mmct_ops, s, + "cache-and-tlb", 0x08000000); + memory_region_add_subregion(sysmem, 0xf0000000, &s->mmct_iomem); + + sh_intc_init(sysmem, &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->env.intc_handle = &s->intc; + + sh_serial_init(sysmem, 0x1fe00000, + 0, s->periph_freq, serial_hds[0], + s->intc.irqs[SCI1_ERI], + s->intc.irqs[SCI1_RXI], + s->intc.irqs[SCI1_TXI], + s->intc.irqs[SCI1_TEI], + NULL); + sh_serial_init(sysmem, 0x1fe80000, + SH_SERIAL_FEAT_SCIF, + s->periph_freq, serial_hds[1], + s->intc.irqs[SCIF_ERI], + s->intc.irqs[SCIF_RXI], + s->intc.irqs[SCIF_TXI], + NULL, + s->intc.irqs[SCIF_BRI]); + + tmu012_init(sysmem, 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->env.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->env.id & (SH_CPU_SH7750R | SH_CPU_SH7751R)) { + sh_intc_register_sources(&s->intc, + _INTC_ARRAY(vectors_dma8), + _INTC_ARRAY(groups_dma8)); + } + + if (cpu->env.id & (SH_CPU_SH7750R | SH_CPU_SH7751 | SH_CPU_SH7751R)) { + sh_intc_register_sources(&s->intc, + _INTC_ARRAY(vectors_tmu34), + NULL, 0); + tmu012_init(sysmem, 0x1e100000, 0, s->periph_freq, + s->intc.irqs[TMU3], + s->intc.irqs[TMU4], + NULL, NULL); + } + + if (cpu->env.id & (SH_CPU_SH7751_ALL)) { + sh_intc_register_sources(&s->intc, + _INTC_ARRAY(vectors_pci), + _INTC_ARRAY(groups_pci)); + } + + if (cpu->env.id & (SH_CPU_SH7750S | SH_CPU_SH7750R | SH_CPU_SH7751_ALL)) { + sh_intc_register_sources(&s->intc, + _INTC_ARRAY(vectors_irlm), + NULL, 0); + } + + sh_intc_register_sources(&s->intc, + _INTC_ARRAY(vectors_irl), + _INTC_ARRAY(groups_irl)); + return s; +} + +qemu_irq sh7750_irl(SH7750State *s) +{ + sh_intc_toggle_source(sh_intc_source(&s->intc, IRL), 1, 0); /* enable */ + return qemu_allocate_irq(sh_intc_set_irl, sh_intc_source(&s->intc, IRL), 0); +} |
