| /* | 
 |  * 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.h" | 
 | #include "mips.h" | 
 | #include "mips_cpudevs.h" | 
 | #include "pc.h" | 
 | #include "serial.h" | 
 | #include "isa.h" | 
 | #include "fdc.h" | 
 | #include "sysemu/sysemu.h" | 
 | #include "sysemu/arch_init.h" | 
 | #include "boards.h" | 
 | #include "net/net.h" | 
 | #include "esp.h" | 
 | #include "mips-bios.h" | 
 | #include "loader.h" | 
 | #include "mc146818rtc.h" | 
 | #include "i8254.h" | 
 | #include "pcspk.h" | 
 | #include "sysemu/blockdev.h" | 
 | #include "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); |