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Diffstat (limited to 'hw/mips/mips_jazz.c')
-rw-r--r--hw/mips/mips_jazz.c345
1 files changed, 345 insertions, 0 deletions
diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
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+++ b/hw/mips/mips_jazz.c
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+/*
+ * 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 "hw/hw.h"
+#include "hw/mips.h"
+#include "hw/mips_cpudevs.h"
+#include "hw/pc.h"
+#include "hw/serial.h"
+#include "hw/isa.h"
+#include "hw/fdc.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/arch_init.h"
+#include "hw/boards.h"
+#include "net/net.h"
+#include "hw/esp.h"
+#include "hw/mips-bios.h"
+#include "hw/loader.h"
+#include "hw/mc146818rtc.h"
+#include "hw/i8254.h"
+#include "hw/pcspk.h"
+#include "sysemu/blockdev.h"
+#include "hw/sysbus.h"
+#include "exec/address-spaces.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)
+{
+ return cpu_inw(0x71);
+}
+
+static void rtc_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ cpu_outw(0x71, val & 0xff);
+}
+
+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 void cpu_request_exit(void *opaque, int irq, int level)
+{
+ CPUMIPSState *env = cpu_single_env;
+
+ if (env && level) {
+ cpu_exit(env);
+ }
+}
+
+static void mips_jazz_init(MemoryRegion *address_space,
+ MemoryRegion *address_space_io,
+ ram_addr_t ram_size,
+ const char *cpu_model,
+ enum jazz_model_e jazz_model)
+{
+ char *filename;
+ int bios_size, n;
+ MIPSCPU *cpu;
+ CPUMIPSState *env;
+ qemu_irq *rc4030, *i8259;
+ rc4030_dma *dmas;
+ void* rc4030_opaque;
+ MemoryRegion *rtc = g_new(MemoryRegion, 1);
+ MemoryRegion *i8042 = g_new(MemoryRegion, 1);
+ MemoryRegion *dma_dummy = g_new(MemoryRegion, 1);
+ NICInfo *nd;
+ DeviceState *dev;
+ SysBusDevice *sysbus;
+ ISABus *isa_bus;
+ ISADevice *pit;
+ DriveInfo *fds[MAX_FD];
+ qemu_irq esp_reset, dma_enable;
+ qemu_irq *cpu_exit_irq;
+ MemoryRegion *ram = g_new(MemoryRegion, 1);
+ MemoryRegion *bios = g_new(MemoryRegion, 1);
+ MemoryRegion *bios2 = g_new(MemoryRegion, 1);
+
+ /* init CPUs */
+ if (cpu_model == NULL) {
+#ifdef TARGET_MIPS64
+ cpu_model = "R4000";
+#else
+ /* FIXME: All wrong, this maybe should be R3000 for the older JAZZs. */
+ cpu_model = "24Kf";
+#endif
+ }
+ 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);
+
+ /* allocate RAM */
+ memory_region_init_ram(ram, "mips_jazz.ram", ram_size);
+ vmstate_register_ram_global(ram);
+ memory_region_add_subregion(address_space, 0, ram);
+
+ memory_region_init_ram(bios, "mips_jazz.bios", MAGNUM_BIOS_SIZE);
+ vmstate_register_ram_global(bios);
+ memory_region_set_readonly(bios, true);
+ memory_region_init_alias(bios2, "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) {
+ fprintf(stderr, "qemu: Could not load MIPS bios '%s'\n",
+ bios_name);
+ exit(1);
+ }
+
+ /* Init CPU internal devices */
+ cpu_mips_irq_init_cpu(env);
+ cpu_mips_clock_init(env);
+
+ /* Chipset */
+ rc4030_opaque = rc4030_init(env->irq[6], env->irq[3], &rc4030, &dmas,
+ address_space);
+ memory_region_init_io(dma_dummy, &dma_dummy_ops, NULL, "dummy_dma", 0x1000);
+ memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);
+
+ /* ISA devices */
+ isa_bus = isa_bus_new(NULL, address_space_io);
+ i8259 = i8259_init(isa_bus, env->irq[4]);
+ isa_bus_irqs(isa_bus, i8259);
+ cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
+ DMA_init(0, cpu_exit_irq);
+ pit = pit_init(isa_bus, 0x40, 0, NULL);
+ pcspk_init(isa_bus, pit);
+
+ /* ISA IO space at 0x90000000 */
+ isa_mmio_init(0x90000000, 0x01000000);
+ isa_mem_base = 0x11000000;
+
+ /* 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, 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, "g364fb.rom", 0x80000);
+ 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) {
+ dp83932_init(nd, 0x80001000, 2, get_system_memory(), rc4030[4],
+ rc4030_opaque, rc4030_dma_memory_rw);
+ 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],
+ 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);
+ }
+ fdctrl_init_sysbus(rc4030[1], 0, 0x80003000, fds);
+
+ /* Real time clock */
+ rtc_init(isa_bus, 1980, NULL);
+ memory_region_init_io(rtc, &rtc_ops, NULL, "rtc", 0x1000);
+ memory_region_add_subregion(address_space, 0x80004000, rtc);
+
+ /* Keyboard (i8042) */
+ i8042_mm_init(rc4030[6], 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, rc4030[8], 8000000/16,
+ serial_hds[0], DEVICE_NATIVE_ENDIAN);
+ }
+ if (serial_hds[1]) {
+ serial_mm_init(address_space, 0x80007000, 0, rc4030[9], 8000000/16,
+ serial_hds[1], DEVICE_NATIVE_ENDIAN);
+ }
+
+ /* Parallel port */
+ if (parallel_hds[0])
+ parallel_mm_init(address_space, 0x80008000, 0, rc4030[0],
+ parallel_hds[0]);
+
+ /* Sound card */
+ /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */
+ audio_init(isa_bus, NULL);
+
+ /* 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(QEMUMachineInitArgs *args)
+{
+ ram_addr_t ram_size = args->ram_size;
+ const char *cpu_model = args->cpu_model;
+ mips_jazz_init(get_system_memory(), get_system_io(),
+ ram_size, cpu_model, JAZZ_MAGNUM);
+}
+
+static
+void mips_pica61_init(QEMUMachineInitArgs *args)
+{
+ ram_addr_t ram_size = args->ram_size;
+ const char *cpu_model = args->cpu_model;
+ mips_jazz_init(get_system_memory(), get_system_io(),
+ ram_size, cpu_model, JAZZ_PICA61);
+}
+
+static QEMUMachine mips_magnum_machine = {
+ .name = "magnum",
+ .desc = "MIPS Magnum",
+ .init = mips_magnum_init,
+ .block_default_type = IF_SCSI,
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static QEMUMachine mips_pica61_machine = {
+ .name = "pica61",
+ .desc = "Acer Pica 61",
+ .init = mips_pica61_init,
+ .block_default_type = IF_SCSI,
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static void mips_jazz_machine_init(void)
+{
+ qemu_register_machine(&mips_magnum_machine);
+ qemu_register_machine(&mips_pica61_machine);
+}
+
+machine_init(mips_jazz_machine_init);
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