hw/mips/mips_jazz.c - qemu - Git at Google

 /*
  * QEMU MIPS Jazz support
  *
  * Copyright (c) 2007-2008 Hervé Poussineau
  *
  * 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 "hw/hw.h"
 #include "hw/mips/mips.h"
 #include "hw/mips/cpudevs.h"
 #include "hw/i386/pc.h"
 #include "hw/char/serial.h"
 #include "hw/isa/isa.h"
 #include "hw/block/fdc.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/arch_init.h"
 #include "hw/boards.h"
 #include "net/net.h"
 #include "hw/scsi/esp.h"
 #include "hw/mips/bios.h"
 #include "hw/loader.h"
 #include "hw/timer/mc146818rtc.h"
 #include "hw/timer/i8254.h"
 #include "hw/audio/pcspk.h"
 #include "sysemu/block-backend.h"
 #include "hw/sysbus.h"
 #include "exec/address-spaces.h"
 #include "sysemu/qtest.h"
 #include "qemu/error-report.h"
 #include "qemu/help_option.h"

 enum jazz_model_e
 {
     JAZZ_MAGNUM,
     JAZZ_PICA61,
 };

 static void main_cpu_reset(void *opaque)
 {
     MIPSCPU *cpu = opaque;

     cpu_reset(CPU(cpu));
 }

 static uint64_t rtc_read(void *opaque, hwaddr addr, unsigned size)
 {
     uint8_t val;
     address_space_read(&address_space_memory, 0x90000071,
                        MEMTXATTRS_UNSPECIFIED, &val, 1);
     return val;
 }

 static void rtc_write(void *opaque, hwaddr addr,
                       uint64_t val, unsigned size)
 {
     uint8_t buf = val & 0xff;
     address_space_write(&address_space_memory, 0x90000071,
                         MEMTXATTRS_UNSPECIFIED, &buf, 1);
 }

 static const MemoryRegionOps rtc_ops = {
     .read = rtc_read,
     .write = rtc_write,
     .endianness = DEVICE_NATIVE_ENDIAN,
 };

 static uint64_t dma_dummy_read(void *opaque, hwaddr addr,
                                unsigned size)
 {
     /* Nothing to do. That is only to ensure that
      * the current DMA acknowledge cycle is completed. */
     return 0xff;
 }

 static void dma_dummy_write(void *opaque, hwaddr addr,
                             uint64_t val, unsigned size)
 {
     /* Nothing to do. That is only to ensure that
      * the current DMA acknowledge cycle is completed. */
 }

 static const MemoryRegionOps dma_dummy_ops = {
     .read = dma_dummy_read,
     .write = dma_dummy_write,
     .endianness = DEVICE_NATIVE_ENDIAN,
 };

 #define MAGNUM_BIOS_SIZE_MAX 0x7e000
 #define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)

 static CPUUnassignedAccess real_do_unassigned_access;
 static void mips_jazz_do_unassigned_access(CPUState *cpu, hwaddr addr,
                                            bool is_write, bool is_exec,
                                            int opaque, unsigned size)
 {
     if (!is_exec) {
         /* ignore invalid access (ie do not raise exception) */
         return;
     }
     (*real_do_unassigned_access)(cpu, addr, is_write, is_exec, opaque, size);
 }

 static void mips_jazz_init(MachineState *machine,
                            enum jazz_model_e jazz_model)
 {
     MemoryRegion *address_space = get_system_memory();
     const char *cpu_model = machine->cpu_model;
     char *filename;
     int bios_size, n;
     MIPSCPU *cpu;
     CPUClass *cc;
     CPUMIPSState *env;
     qemu_irq *i8259;
     rc4030_dma *dmas;
     MemoryRegion *rc4030_dma_mr;
     MemoryRegion *isa_mem = g_new(MemoryRegion, 1);
     MemoryRegion *isa_io = g_new(MemoryRegion, 1);
     MemoryRegion *rtc = g_new(MemoryRegion, 1);
     MemoryRegion *i8042 = g_new(MemoryRegion, 1);
     MemoryRegion *dma_dummy = g_new(MemoryRegion, 1);
     NICInfo *nd;
     DeviceState *dev, *rc4030;
     SysBusDevice *sysbus;
     ISABus *isa_bus;
     ISADevice *pit;
     DriveInfo *fds[MAX_FD];
     qemu_irq esp_reset, dma_enable;
     MemoryRegion *ram = g_new(MemoryRegion, 1);
     MemoryRegion *bios = g_new(MemoryRegion, 1);
     MemoryRegion *bios2 = g_new(MemoryRegion, 1);

     /* init CPUs */
     if (cpu_model == NULL) {
         cpu_model = "R4000";
     }
     cpu = cpu_mips_init(cpu_model);
     if (cpu == NULL) {
         fprintf(stderr, "Unable to find CPU definition\n");
         exit(1);
     }
     env = &cpu->env;
     qemu_register_reset(main_cpu_reset, cpu);

     /* Chipset returns 0 in invalid reads and do not raise data exceptions.
      * However, we can't simply add a global memory region to catch
      * everything, as memory core directly call unassigned_mem_read/write
      * on some invalid accesses, which call do_unassigned_access on the
      * CPU, which raise an exception.
      * Handle that case by hijacking the do_unassigned_access method on
      * the CPU, and do not raise exceptions for data access. */
     cc = CPU_GET_CLASS(cpu);
     real_do_unassigned_access = cc->do_unassigned_access;
     cc->do_unassigned_access = mips_jazz_do_unassigned_access;

     /* allocate RAM */
     memory_region_allocate_system_memory(ram, NULL, "mips_jazz.ram",
                                          machine->ram_size);
     memory_region_add_subregion(address_space, 0, ram);

     memory_region_init_ram(bios, NULL, "mips_jazz.bios", MAGNUM_BIOS_SIZE,
                            &error_fatal);
     vmstate_register_ram_global(bios);
     memory_region_set_readonly(bios, true);
     memory_region_init_alias(bios2, NULL, "mips_jazz.bios", bios,
                              0, MAGNUM_BIOS_SIZE);
     memory_region_add_subregion(address_space, 0x1fc00000LL, bios);
     memory_region_add_subregion(address_space, 0xfff00000LL, bios2);

     /* load the BIOS image. */
     if (bios_name == NULL)
         bios_name = BIOS_FILENAME;
     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
     if (filename) {
         bios_size = load_image_targphys(filename, 0xfff00000LL,
                                         MAGNUM_BIOS_SIZE);
         g_free(filename);
     } else {
         bios_size = -1;
     }
     if ((bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) && !qtest_enabled()) {
         error_report("Could not load MIPS bios '%s'", bios_name);
         exit(1);
     }

     /* Init CPU internal devices */
     cpu_mips_irq_init_cpu(cpu);
     cpu_mips_clock_init(cpu);

     /* Chipset */
     rc4030 = rc4030_init(&dmas, &rc4030_dma_mr);
     sysbus = SYS_BUS_DEVICE(rc4030);
     sysbus_connect_irq(sysbus, 0, env->irq[6]);
     sysbus_connect_irq(sysbus, 1, env->irq[3]);
     memory_region_add_subregion(address_space, 0x80000000,
                                 sysbus_mmio_get_region(sysbus, 0));
     memory_region_add_subregion(address_space, 0xf0000000,
                                 sysbus_mmio_get_region(sysbus, 1));
     memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops, NULL, "dummy_dma", 0x1000);
     memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);

     /* ISA bus: IO space at 0x90000000, mem space at 0x91000000 */
     memory_region_init(isa_io, NULL, "isa-io", 0x00010000);
     memory_region_init(isa_mem, NULL, "isa-mem", 0x01000000);
     memory_region_add_subregion(address_space, 0x90000000, isa_io);
     memory_region_add_subregion(address_space, 0x91000000, isa_mem);
     isa_bus = isa_bus_new(NULL, isa_mem, isa_io, &error_abort);

     /* ISA devices */
     i8259 = i8259_init(isa_bus, env->irq[4]);
     isa_bus_irqs(isa_bus, i8259);
     DMA_init(isa_bus, 0);
     pit = pit_init(isa_bus, 0x40, 0, NULL);
     pcspk_init(isa_bus, pit);

     /* Video card */
     switch (jazz_model) {
     case JAZZ_MAGNUM:
         dev = qdev_create(NULL, "sysbus-g364");
         qdev_init_nofail(dev);
         sysbus = SYS_BUS_DEVICE(dev);
         sysbus_mmio_map(sysbus, 0, 0x60080000);
         sysbus_mmio_map(sysbus, 1, 0x40000000);
         sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 3));
         {
             /* Simple ROM, so user doesn't have to provide one */
             MemoryRegion *rom_mr = g_new(MemoryRegion, 1);
             memory_region_init_ram(rom_mr, NULL, "g364fb.rom", 0x80000,
                                    &error_fatal);
             vmstate_register_ram_global(rom_mr);
             memory_region_set_readonly(rom_mr, true);
             uint8_t *rom = memory_region_get_ram_ptr(rom_mr);
             memory_region_add_subregion(address_space, 0x60000000, rom_mr);
             rom[0] = 0x10; /* Mips G364 */
         }
         break;
     case JAZZ_PICA61:
         isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());
         break;
     default:
         break;
     }

     /* Network controller */
     for (n = 0; n < nb_nics; n++) {
         nd = &nd_table[n];
         if (!nd->model)
             nd->model = g_strdup("dp83932");
         if (strcmp(nd->model, "dp83932") == 0) {
             qemu_check_nic_model(nd, "dp83932");

             dev = qdev_create(NULL, "dp8393x");
             qdev_set_nic_properties(dev, nd);
             qdev_prop_set_uint8(dev, "it_shift", 2);
             qdev_prop_set_ptr(dev, "dma_mr", rc4030_dma_mr);
             qdev_init_nofail(dev);
             sysbus = SYS_BUS_DEVICE(dev);
             sysbus_mmio_map(sysbus, 0, 0x80001000);
             sysbus_mmio_map(sysbus, 1, 0x8000b000);
             sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 4));
             break;
         } else if (is_help_option(nd->model)) {
             fprintf(stderr, "qemu: Supported NICs: dp83932\n");
             exit(1);
         } else {
             fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
             exit(1);
         }
     }

     /* SCSI adapter */
     esp_init(0x80002000, 0,
              rc4030_dma_read, rc4030_dma_write, dmas[0],
              qdev_get_gpio_in(rc4030, 5), &esp_reset, &dma_enable);

     /* Floppy */
     if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {
         fprintf(stderr, "qemu: too many floppy drives\n");
         exit(1);
     }
     for (n = 0; n < MAX_FD; n++) {
         fds[n] = drive_get(IF_FLOPPY, 0, n);
     }
     /* FIXME: we should enable DMA with a custom IsaDma device */
     fdctrl_init_sysbus(qdev_get_gpio_in(rc4030, 1), -1, 0x80003000, fds);

     /* Real time clock */
     rtc_init(isa_bus, 1980, NULL);
     memory_region_init_io(rtc, NULL, &rtc_ops, NULL, "rtc", 0x1000);
     memory_region_add_subregion(address_space, 0x80004000, rtc);

     /* Keyboard (i8042) */
     i8042_mm_init(qdev_get_gpio_in(rc4030, 6), qdev_get_gpio_in(rc4030, 7),
                   i8042, 0x1000, 0x1);
     memory_region_add_subregion(address_space, 0x80005000, i8042);

     /* Serial ports */
     if (serial_hds[0]) {
         serial_mm_init(address_space, 0x80006000, 0,
                        qdev_get_gpio_in(rc4030, 8), 8000000/16,
                        serial_hds[0], DEVICE_NATIVE_ENDIAN);
     }
     if (serial_hds[1]) {
         serial_mm_init(address_space, 0x80007000, 0,
                        qdev_get_gpio_in(rc4030, 9), 8000000/16,
                        serial_hds[1], DEVICE_NATIVE_ENDIAN);
     }

     /* Parallel port */
     if (parallel_hds[0])
         parallel_mm_init(address_space, 0x80008000, 0,
                          qdev_get_gpio_in(rc4030, 0), parallel_hds[0]);

     /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */

     /* NVRAM */
     dev = qdev_create(NULL, "ds1225y");
     qdev_init_nofail(dev);
     sysbus = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(sysbus, 0, 0x80009000);

     /* LED indicator */
     sysbus_create_simple("jazz-led", 0x8000f000, NULL);
 }

 static
 void mips_magnum_init(MachineState *machine)
 {
     mips_jazz_init(machine, JAZZ_MAGNUM);
 }

 static
 void mips_pica61_init(MachineState *machine)
 {
     mips_jazz_init(machine, JAZZ_PICA61);
 }

 static void mips_magnum_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);

     mc->desc = "MIPS Magnum";
     mc->init = mips_magnum_init;
     mc->block_default_type = IF_SCSI;
 }

 static const TypeInfo mips_magnum_type = {
     .name = MACHINE_TYPE_NAME("magnum"),
     .parent = TYPE_MACHINE,
     .class_init = mips_magnum_class_init,
 };

 static void mips_pica61_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);

     mc->desc = "Acer Pica 61";
     mc->init = mips_pica61_init;
     mc->block_default_type = IF_SCSI;
 }

 static const TypeInfo mips_pica61_type = {
     .name = MACHINE_TYPE_NAME("pica61"),
     .parent = TYPE_MACHINE,
     .class_init = mips_pica61_class_init,
 };

 static void mips_jazz_machine_init(void)
 {
     type_register_static(&mips_magnum_type);
     type_register_static(&mips_pica61_type);
 }

 type_init(mips_jazz_machine_init)
	/*
	* QEMU MIPS Jazz support
	*
	* Copyright (c) 2007-2008 Hervé Poussineau
	*
	* 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 "hw/hw.h"
	#include "hw/mips/mips.h"
	#include "hw/mips/cpudevs.h"
	#include "hw/i386/pc.h"
	#include "hw/char/serial.h"
	#include "hw/isa/isa.h"
	#include "hw/block/fdc.h"
	#include "sysemu/sysemu.h"
	#include "sysemu/arch_init.h"
	#include "hw/boards.h"
	#include "net/net.h"
	#include "hw/scsi/esp.h"
	#include "hw/mips/bios.h"
	#include "hw/loader.h"
	#include "hw/timer/mc146818rtc.h"
	#include "hw/timer/i8254.h"
	#include "hw/audio/pcspk.h"
	#include "sysemu/block-backend.h"
	#include "hw/sysbus.h"
	#include "exec/address-spaces.h"
	#include "sysemu/qtest.h"
	#include "qemu/error-report.h"
	#include "qemu/help_option.h"

	enum jazz_model_e
	{
	JAZZ_MAGNUM,
	JAZZ_PICA61,
	};

	static void main_cpu_reset(void *opaque)
	{
	MIPSCPU *cpu = opaque;

	cpu_reset(CPU(cpu));
	}

	static uint64_t rtc_read(void *opaque, hwaddr addr, unsigned size)
	{
	uint8_t val;
	address_space_read(&address_space_memory, 0x90000071,
	MEMTXATTRS_UNSPECIFIED, &val, 1);
	return val;
	}

	static void rtc_write(void *opaque, hwaddr addr,
	uint64_t val, unsigned size)
	{
	uint8_t buf = val & 0xff;
	address_space_write(&address_space_memory, 0x90000071,
	MEMTXATTRS_UNSPECIFIED, &buf, 1);
	}

	static const MemoryRegionOps rtc_ops = {
	.read = rtc_read,
	.write = rtc_write,
	.endianness = DEVICE_NATIVE_ENDIAN,
	};

	static uint64_t dma_dummy_read(void *opaque, hwaddr addr,
	unsigned size)
	{
	/* Nothing to do. That is only to ensure that
	* the current DMA acknowledge cycle is completed. */
	return 0xff;
	}

	static void dma_dummy_write(void *opaque, hwaddr addr,
	uint64_t val, unsigned size)
	{
	/* Nothing to do. That is only to ensure that
	* the current DMA acknowledge cycle is completed. */
	}

	static const MemoryRegionOps dma_dummy_ops = {
	.read = dma_dummy_read,
	.write = dma_dummy_write,
	.endianness = DEVICE_NATIVE_ENDIAN,
	};

	#define MAGNUM_BIOS_SIZE_MAX 0x7e000
	#define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)

	static CPUUnassignedAccess real_do_unassigned_access;
	static void mips_jazz_do_unassigned_access(CPUState *cpu, hwaddr addr,
	bool is_write, bool is_exec,
	int opaque, unsigned size)
	{
	if (!is_exec) {
	/* ignore invalid access (ie do not raise exception) */
	return;
	}
	(*real_do_unassigned_access)(cpu, addr, is_write, is_exec, opaque, size);
	}

	static void mips_jazz_init(MachineState *machine,
	enum jazz_model_e jazz_model)
	{
	MemoryRegion *address_space = get_system_memory();
	const char *cpu_model = machine->cpu_model;
	char *filename;
	int bios_size, n;
	MIPSCPU *cpu;
	CPUClass *cc;
	CPUMIPSState *env;
	qemu_irq *i8259;
	rc4030_dma *dmas;
	MemoryRegion *rc4030_dma_mr;
	MemoryRegion *isa_mem = g_new(MemoryRegion, 1);
	MemoryRegion *isa_io = g_new(MemoryRegion, 1);
	MemoryRegion *rtc = g_new(MemoryRegion, 1);
	MemoryRegion *i8042 = g_new(MemoryRegion, 1);
	MemoryRegion *dma_dummy = g_new(MemoryRegion, 1);
	NICInfo *nd;
	DeviceState dev, rc4030;
	SysBusDevice *sysbus;
	ISABus *isa_bus;
	ISADevice *pit;
	DriveInfo *fds[MAX_FD];
	qemu_irq esp_reset, dma_enable;
	MemoryRegion *ram = g_new(MemoryRegion, 1);
	MemoryRegion *bios = g_new(MemoryRegion, 1);
	MemoryRegion *bios2 = g_new(MemoryRegion, 1);

	/* init CPUs */
	if (cpu_model == NULL) {
	cpu_model = "R4000";
	}
	cpu = cpu_mips_init(cpu_model);
	if (cpu == NULL) {
	fprintf(stderr, "Unable to find CPU definition\n");
	exit(1);
	}
	env = &cpu->env;
	qemu_register_reset(main_cpu_reset, cpu);

	/* Chipset returns 0 in invalid reads and do not raise data exceptions.
	* However, we can't simply add a global memory region to catch
	* everything, as memory core directly call unassigned_mem_read/write
	* on some invalid accesses, which call do_unassigned_access on the
	* CPU, which raise an exception.
	* Handle that case by hijacking the do_unassigned_access method on
	* the CPU, and do not raise exceptions for data access. */
	cc = CPU_GET_CLASS(cpu);
	real_do_unassigned_access = cc->do_unassigned_access;
	cc->do_unassigned_access = mips_jazz_do_unassigned_access;

	/* allocate RAM */
	memory_region_allocate_system_memory(ram, NULL, "mips_jazz.ram",
	machine->ram_size);
	memory_region_add_subregion(address_space, 0, ram);

	memory_region_init_ram(bios, NULL, "mips_jazz.bios", MAGNUM_BIOS_SIZE,
	&error_fatal);
	vmstate_register_ram_global(bios);
	memory_region_set_readonly(bios, true);
	memory_region_init_alias(bios2, NULL, "mips_jazz.bios", bios,
	0, MAGNUM_BIOS_SIZE);
	memory_region_add_subregion(address_space, 0x1fc00000LL, bios);
	memory_region_add_subregion(address_space, 0xfff00000LL, bios2);

	/* load the BIOS image. */
	if (bios_name == NULL)
	bios_name = BIOS_FILENAME;
	filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
	if (filename) {
	bios_size = load_image_targphys(filename, 0xfff00000LL,
	MAGNUM_BIOS_SIZE);
	g_free(filename);
	} else {
	bios_size = -1;
	}
	if ((bios_size < 0 \|\| bios_size > MAGNUM_BIOS_SIZE) && !qtest_enabled()) {
	error_report("Could not load MIPS bios '%s'", bios_name);
	exit(1);
	}

	/* Init CPU internal devices */
	cpu_mips_irq_init_cpu(cpu);
	cpu_mips_clock_init(cpu);

	/* Chipset */
	rc4030 = rc4030_init(&dmas, &rc4030_dma_mr);
	sysbus = SYS_BUS_DEVICE(rc4030);
	sysbus_connect_irq(sysbus, 0, env->irq[6]);
	sysbus_connect_irq(sysbus, 1, env->irq[3]);
	memory_region_add_subregion(address_space, 0x80000000,
	sysbus_mmio_get_region(sysbus, 0));
	memory_region_add_subregion(address_space, 0xf0000000,
	sysbus_mmio_get_region(sysbus, 1));
	memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops, NULL, "dummy_dma", 0x1000);
	memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);

	/* ISA bus: IO space at 0x90000000, mem space at 0x91000000 */
	memory_region_init(isa_io, NULL, "isa-io", 0x00010000);
	memory_region_init(isa_mem, NULL, "isa-mem", 0x01000000);
	memory_region_add_subregion(address_space, 0x90000000, isa_io);
	memory_region_add_subregion(address_space, 0x91000000, isa_mem);
	isa_bus = isa_bus_new(NULL, isa_mem, isa_io, &error_abort);

	/* ISA devices */
	i8259 = i8259_init(isa_bus, env->irq[4]);
	isa_bus_irqs(isa_bus, i8259);
	DMA_init(isa_bus, 0);
	pit = pit_init(isa_bus, 0x40, 0, NULL);
	pcspk_init(isa_bus, pit);

	/* Video card */
	switch (jazz_model) {
	case JAZZ_MAGNUM:
	dev = qdev_create(NULL, "sysbus-g364");
	qdev_init_nofail(dev);
	sysbus = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(sysbus, 0, 0x60080000);
	sysbus_mmio_map(sysbus, 1, 0x40000000);
	sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 3));
	{
	/* Simple ROM, so user doesn't have to provide one */
	MemoryRegion *rom_mr = g_new(MemoryRegion, 1);
	memory_region_init_ram(rom_mr, NULL, "g364fb.rom", 0x80000,
	&error_fatal);
	vmstate_register_ram_global(rom_mr);
	memory_region_set_readonly(rom_mr, true);
	uint8_t *rom = memory_region_get_ram_ptr(rom_mr);
	memory_region_add_subregion(address_space, 0x60000000, rom_mr);
	rom[0] = 0x10; /* Mips G364 */
	}
	break;
	case JAZZ_PICA61:
	isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());
	break;
	default:
	break;
	}

	/* Network controller */
	for (n = 0; n < nb_nics; n++) {
	nd = &nd_table[n];
	if (!nd->model)
	nd->model = g_strdup("dp83932");
	if (strcmp(nd->model, "dp83932") == 0) {
	qemu_check_nic_model(nd, "dp83932");

	dev = qdev_create(NULL, "dp8393x");
	qdev_set_nic_properties(dev, nd);
	qdev_prop_set_uint8(dev, "it_shift", 2);
	qdev_prop_set_ptr(dev, "dma_mr", rc4030_dma_mr);
	qdev_init_nofail(dev);
	sysbus = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(sysbus, 0, 0x80001000);
	sysbus_mmio_map(sysbus, 1, 0x8000b000);
	sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 4));
	break;
	} else if (is_help_option(nd->model)) {
	fprintf(stderr, "qemu: Supported NICs: dp83932\n");
	exit(1);
	} else {
	fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
	exit(1);
	}
	}

	/* SCSI adapter */
	esp_init(0x80002000, 0,
	rc4030_dma_read, rc4030_dma_write, dmas[0],
	qdev_get_gpio_in(rc4030, 5), &esp_reset, &dma_enable);

	/* Floppy */
	if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {
	fprintf(stderr, "qemu: too many floppy drives\n");
	exit(1);
	}
	for (n = 0; n < MAX_FD; n++) {
	fds[n] = drive_get(IF_FLOPPY, 0, n);
	}
	/* FIXME: we should enable DMA with a custom IsaDma device */
	fdctrl_init_sysbus(qdev_get_gpio_in(rc4030, 1), -1, 0x80003000, fds);

	/* Real time clock */
	rtc_init(isa_bus, 1980, NULL);
	memory_region_init_io(rtc, NULL, &rtc_ops, NULL, "rtc", 0x1000);
	memory_region_add_subregion(address_space, 0x80004000, rtc);

	/* Keyboard (i8042) */
	i8042_mm_init(qdev_get_gpio_in(rc4030, 6), qdev_get_gpio_in(rc4030, 7),
	i8042, 0x1000, 0x1);
	memory_region_add_subregion(address_space, 0x80005000, i8042);

	/* Serial ports */
	if (serial_hds[0]) {
	serial_mm_init(address_space, 0x80006000, 0,
	qdev_get_gpio_in(rc4030, 8), 8000000/16,
	serial_hds[0], DEVICE_NATIVE_ENDIAN);
	}
	if (serial_hds[1]) {
	serial_mm_init(address_space, 0x80007000, 0,
	qdev_get_gpio_in(rc4030, 9), 8000000/16,
	serial_hds[1], DEVICE_NATIVE_ENDIAN);
	}

	/* Parallel port */
	if (parallel_hds[0])
	parallel_mm_init(address_space, 0x80008000, 0,
	qdev_get_gpio_in(rc4030, 0), parallel_hds[0]);

	/* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */

	/* NVRAM */
	dev = qdev_create(NULL, "ds1225y");
	qdev_init_nofail(dev);
	sysbus = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(sysbus, 0, 0x80009000);

	/* LED indicator */
	sysbus_create_simple("jazz-led", 0x8000f000, NULL);
	}

	static
	void mips_magnum_init(MachineState *machine)
	{
	mips_jazz_init(machine, JAZZ_MAGNUM);
	}

	static
	void mips_pica61_init(MachineState *machine)
	{
	mips_jazz_init(machine, JAZZ_PICA61);
	}

	static void mips_magnum_class_init(ObjectClass oc, void data)
	{
	MachineClass *mc = MACHINE_CLASS(oc);

	mc->desc = "MIPS Magnum";
	mc->init = mips_magnum_init;
	mc->block_default_type = IF_SCSI;
	}

	static const TypeInfo mips_magnum_type = {
	.name = MACHINE_TYPE_NAME("magnum"),
	.parent = TYPE_MACHINE,
	.class_init = mips_magnum_class_init,
	};

	static void mips_pica61_class_init(ObjectClass oc, void data)
	{
	MachineClass *mc = MACHINE_CLASS(oc);

	mc->desc = "Acer Pica 61";
	mc->init = mips_pica61_init;
	mc->block_default_type = IF_SCSI;
	}

	static const TypeInfo mips_pica61_type = {
	.name = MACHINE_TYPE_NAME("pica61"),
	.parent = TYPE_MACHINE,
	.class_init = mips_pica61_class_init,
	};

	static void mips_jazz_machine_init(void)
	{
	type_register_static(&mips_magnum_type);
	type_register_static(&mips_pica61_type);
	}

	type_init(mips_jazz_machine_init)