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Projet_SETI_RISC-V/riscv-gnu-toolchain/qemu/hw/sh4/sh7750.c

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projet
2023-03-06 14:48:14 +01:00
/*
* 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 "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/sysbus.h"
#include "hw/irq.h"
#include "hw/sh4/sh.h"
#include "sysemu/sysemu.h"
#include "hw/qdev-properties.h"
#include "hw/qdev-properties-system.h"
#include "sh7750_regs.h"
#include "sh7750_regnames.h"
#include "hw/sh4/sh_intc.h"
#include "hw/timer/tmu012.h"
#include "exec/exec-all.h"
#include "trace.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;
currenta = porta_lines(s);
if (currenta == prev) {
return;
}
trace_sh7750_porta(prev, currenta, s->pdtra, s->pctra);
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;
}
trace_sh7750_portb(prev, currentb, s->pdtrb, s->pctrb);
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));
}
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 uint64_t sh7750_mem_readfn(void *opaque, hwaddr addr, unsigned size)
{
switch (size) {
case 1:
return sh7750_mem_readb(opaque, addr);
case 2:
return sh7750_mem_readw(opaque, addr);
case 4:
return sh7750_mem_readl(opaque, addr);
default:
g_assert_not_reached();
}
}
static void sh7750_mem_writefn(void *opaque, hwaddr addr,
uint64_t value, unsigned size)
{
switch (size) {
case 1:
sh7750_mem_writeb(opaque, addr, value);
break;
case 2:
sh7750_mem_writew(opaque, addr, value);
break;
case 4:
sh7750_mem_writel(opaque, addr, value);
break;
default:
g_assert_not_reached();
}
}
static const MemoryRegionOps sh7750_mem_ops = {
.read = sh7750_mem_readfn,
.write = sh7750_mem_writefn,
.valid.min_access_size = 1,
.valid.max_access_size = 4,
.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;
DeviceState *dev;
SysBusDevice *sb;
MemoryRegion *mr, *alias;
s = g_new0(SH7750State, 1);
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;
/* SCI */
dev = qdev_new(TYPE_SH_SERIAL);
dev->id = g_strdup("sci");
qdev_prop_set_chr(dev, "chardev", serial_hd(0));
sb = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(sb, &error_fatal);
sysbus_mmio_map(sb, 0, 0xffe00000);
alias = g_malloc(sizeof(*alias));
mr = sysbus_mmio_get_region(sb, 0);
memory_region_init_alias(alias, OBJECT(dev), "sci-a7", mr,
0, memory_region_size(mr));
memory_region_add_subregion(sysmem, A7ADDR(0xffe00000), alias);
qdev_connect_gpio_out_named(dev, "eri", 0, s->intc.irqs[SCI1_ERI]);
qdev_connect_gpio_out_named(dev, "rxi", 0, s->intc.irqs[SCI1_RXI]);
qdev_connect_gpio_out_named(dev, "txi", 0, s->intc.irqs[SCI1_TXI]);
qdev_connect_gpio_out_named(dev, "tei", 0, s->intc.irqs[SCI1_TEI]);
/* SCIF */
dev = qdev_new(TYPE_SH_SERIAL);
dev->id = g_strdup("scif");
qdev_prop_set_chr(dev, "chardev", serial_hd(1));
qdev_prop_set_uint8(dev, "features", SH_SERIAL_FEAT_SCIF);
sb = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(sb, &error_fatal);
sysbus_mmio_map(sb, 0, 0xffe80000);
alias = g_malloc(sizeof(*alias));
mr = sysbus_mmio_get_region(sb, 0);
memory_region_init_alias(alias, OBJECT(dev), "scif-a7", mr,
0, memory_region_size(mr));
memory_region_add_subregion(sysmem, A7ADDR(0xffe80000), alias);
qdev_connect_gpio_out_named(dev, "eri", 0, s->intc.irqs[SCIF_ERI]);
qdev_connect_gpio_out_named(dev, "rxi", 0, s->intc.irqs[SCIF_RXI]);
qdev_connect_gpio_out_named(dev, "txi", 0, s->intc.irqs[SCIF_TXI]);
qdev_connect_gpio_out_named(dev, "bri", 0, 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(&s->intc.sources[IRL], 1, 0); /* enable */
return qemu_allocate_irq(sh_intc_set_irl, &s->intc.sources[IRL], 0);
}
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