344 lines
10 KiB
C
344 lines
10 KiB
C
/*
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* QEMU MIPS Jazz support
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*
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* Copyright (c) 2007-2008 Hervé Poussineau
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/hw.h"
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#include "hw/mips/mips.h"
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#include "hw/mips/cpudevs.h"
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#include "hw/i386/pc.h"
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#include "hw/char/serial.h"
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#include "hw/isa/isa.h"
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#include "hw/block/fdc.h"
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#include "sysemu/sysemu.h"
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#include "sysemu/arch_init.h"
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#include "hw/boards.h"
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#include "net/net.h"
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#include "hw/scsi/esp.h"
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#include "hw/mips/bios.h"
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#include "hw/loader.h"
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#include "hw/timer/mc146818rtc.h"
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#include "hw/timer/i8254.h"
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#include "hw/audio/pcspk.h"
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#include "sysemu/blockdev.h"
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#include "hw/sysbus.h"
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#include "exec/address-spaces.h"
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enum jazz_model_e
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{
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JAZZ_MAGNUM,
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JAZZ_PICA61,
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};
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static void main_cpu_reset(void *opaque)
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{
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MIPSCPU *cpu = opaque;
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cpu_reset(CPU(cpu));
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}
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static uint64_t rtc_read(void *opaque, hwaddr addr, unsigned size)
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{
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return cpu_inw(0x71);
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}
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static void rtc_write(void *opaque, hwaddr addr,
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uint64_t val, unsigned size)
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{
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cpu_outw(0x71, val & 0xff);
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}
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static const MemoryRegionOps rtc_ops = {
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.read = rtc_read,
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.write = rtc_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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static uint64_t dma_dummy_read(void *opaque, hwaddr addr,
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unsigned size)
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{
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/* Nothing to do. That is only to ensure that
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* the current DMA acknowledge cycle is completed. */
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return 0xff;
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}
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static void dma_dummy_write(void *opaque, hwaddr addr,
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uint64_t val, unsigned size)
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{
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/* Nothing to do. That is only to ensure that
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* the current DMA acknowledge cycle is completed. */
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}
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static const MemoryRegionOps dma_dummy_ops = {
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.read = dma_dummy_read,
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.write = dma_dummy_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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#define MAGNUM_BIOS_SIZE_MAX 0x7e000
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#define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
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static void cpu_request_exit(void *opaque, int irq, int level)
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{
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CPUState *cpu = current_cpu;
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if (cpu && level) {
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cpu_exit(cpu);
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}
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}
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static void mips_jazz_init(MemoryRegion *address_space,
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MemoryRegion *address_space_io,
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ram_addr_t ram_size,
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const char *cpu_model,
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enum jazz_model_e jazz_model)
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{
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char *filename;
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int bios_size, n;
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MIPSCPU *cpu;
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CPUMIPSState *env;
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qemu_irq *rc4030, *i8259;
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rc4030_dma *dmas;
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void* rc4030_opaque;
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MemoryRegion *rtc = g_new(MemoryRegion, 1);
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MemoryRegion *i8042 = g_new(MemoryRegion, 1);
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MemoryRegion *dma_dummy = g_new(MemoryRegion, 1);
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NICInfo *nd;
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DeviceState *dev;
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SysBusDevice *sysbus;
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ISABus *isa_bus;
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ISADevice *pit;
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DriveInfo *fds[MAX_FD];
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qemu_irq esp_reset, dma_enable;
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qemu_irq *cpu_exit_irq;
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MemoryRegion *ram = g_new(MemoryRegion, 1);
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MemoryRegion *bios = g_new(MemoryRegion, 1);
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MemoryRegion *bios2 = g_new(MemoryRegion, 1);
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/* init CPUs */
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if (cpu_model == NULL) {
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#ifdef TARGET_MIPS64
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cpu_model = "R4000";
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#else
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/* FIXME: All wrong, this maybe should be R3000 for the older JAZZs. */
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cpu_model = "24Kf";
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#endif
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}
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cpu = cpu_mips_init(cpu_model);
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if (cpu == NULL) {
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fprintf(stderr, "Unable to find CPU definition\n");
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exit(1);
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}
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env = &cpu->env;
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qemu_register_reset(main_cpu_reset, cpu);
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/* allocate RAM */
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memory_region_init_ram(ram, NULL, "mips_jazz.ram", ram_size);
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vmstate_register_ram_global(ram);
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memory_region_add_subregion(address_space, 0, ram);
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memory_region_init_ram(bios, NULL, "mips_jazz.bios", MAGNUM_BIOS_SIZE);
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vmstate_register_ram_global(bios);
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memory_region_set_readonly(bios, true);
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memory_region_init_alias(bios2, NULL, "mips_jazz.bios", bios,
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0, MAGNUM_BIOS_SIZE);
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memory_region_add_subregion(address_space, 0x1fc00000LL, bios);
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memory_region_add_subregion(address_space, 0xfff00000LL, bios2);
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/* load the BIOS image. */
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if (bios_name == NULL)
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bios_name = BIOS_FILENAME;
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filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
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if (filename) {
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bios_size = load_image_targphys(filename, 0xfff00000LL,
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MAGNUM_BIOS_SIZE);
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g_free(filename);
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} else {
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bios_size = -1;
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}
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if (bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) {
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fprintf(stderr, "qemu: Could not load MIPS bios '%s'\n",
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bios_name);
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exit(1);
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}
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/* Init CPU internal devices */
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cpu_mips_irq_init_cpu(env);
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cpu_mips_clock_init(env);
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/* Chipset */
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rc4030_opaque = rc4030_init(env->irq[6], env->irq[3], &rc4030, &dmas,
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address_space);
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memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops, NULL, "dummy_dma", 0x1000);
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memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);
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/* ISA devices */
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isa_bus = isa_bus_new(NULL, address_space_io);
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i8259 = i8259_init(isa_bus, env->irq[4]);
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isa_bus_irqs(isa_bus, i8259);
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cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
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DMA_init(0, cpu_exit_irq);
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pit = pit_init(isa_bus, 0x40, 0, NULL);
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pcspk_init(isa_bus, pit);
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/* ISA IO space at 0x90000000 */
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isa_mmio_init(0x90000000, 0x01000000);
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isa_mem_base = 0x11000000;
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/* Video card */
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switch (jazz_model) {
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case JAZZ_MAGNUM:
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dev = qdev_create(NULL, "sysbus-g364");
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qdev_init_nofail(dev);
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sysbus = SYS_BUS_DEVICE(dev);
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sysbus_mmio_map(sysbus, 0, 0x60080000);
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sysbus_mmio_map(sysbus, 1, 0x40000000);
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sysbus_connect_irq(sysbus, 0, rc4030[3]);
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{
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/* Simple ROM, so user doesn't have to provide one */
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MemoryRegion *rom_mr = g_new(MemoryRegion, 1);
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memory_region_init_ram(rom_mr, NULL, "g364fb.rom", 0x80000);
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vmstate_register_ram_global(rom_mr);
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memory_region_set_readonly(rom_mr, true);
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uint8_t *rom = memory_region_get_ram_ptr(rom_mr);
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memory_region_add_subregion(address_space, 0x60000000, rom_mr);
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rom[0] = 0x10; /* Mips G364 */
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}
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break;
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case JAZZ_PICA61:
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isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());
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break;
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default:
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break;
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}
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/* Network controller */
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for (n = 0; n < nb_nics; n++) {
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nd = &nd_table[n];
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if (!nd->model)
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nd->model = g_strdup("dp83932");
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if (strcmp(nd->model, "dp83932") == 0) {
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dp83932_init(nd, 0x80001000, 2, get_system_memory(), rc4030[4],
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rc4030_opaque, rc4030_dma_memory_rw);
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break;
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} else if (is_help_option(nd->model)) {
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fprintf(stderr, "qemu: Supported NICs: dp83932\n");
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exit(1);
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} else {
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fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
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exit(1);
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}
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}
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/* SCSI adapter */
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esp_init(0x80002000, 0,
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rc4030_dma_read, rc4030_dma_write, dmas[0],
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rc4030[5], &esp_reset, &dma_enable);
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/* Floppy */
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if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {
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fprintf(stderr, "qemu: too many floppy drives\n");
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exit(1);
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}
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for (n = 0; n < MAX_FD; n++) {
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fds[n] = drive_get(IF_FLOPPY, 0, n);
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}
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fdctrl_init_sysbus(rc4030[1], 0, 0x80003000, fds);
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/* Real time clock */
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rtc_init(isa_bus, 1980, NULL);
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memory_region_init_io(rtc, NULL, &rtc_ops, NULL, "rtc", 0x1000);
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memory_region_add_subregion(address_space, 0x80004000, rtc);
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/* Keyboard (i8042) */
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i8042_mm_init(rc4030[6], rc4030[7], i8042, 0x1000, 0x1);
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memory_region_add_subregion(address_space, 0x80005000, i8042);
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/* Serial ports */
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if (serial_hds[0]) {
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serial_mm_init(address_space, 0x80006000, 0, rc4030[8], 8000000/16,
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serial_hds[0], DEVICE_NATIVE_ENDIAN);
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}
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if (serial_hds[1]) {
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serial_mm_init(address_space, 0x80007000, 0, rc4030[9], 8000000/16,
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serial_hds[1], DEVICE_NATIVE_ENDIAN);
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}
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/* Parallel port */
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if (parallel_hds[0])
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parallel_mm_init(address_space, 0x80008000, 0, rc4030[0],
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parallel_hds[0]);
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/* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */
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/* NVRAM */
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dev = qdev_create(NULL, "ds1225y");
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qdev_init_nofail(dev);
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sysbus = SYS_BUS_DEVICE(dev);
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sysbus_mmio_map(sysbus, 0, 0x80009000);
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/* LED indicator */
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sysbus_create_simple("jazz-led", 0x8000f000, NULL);
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}
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static
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void mips_magnum_init(QEMUMachineInitArgs *args)
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{
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ram_addr_t ram_size = args->ram_size;
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const char *cpu_model = args->cpu_model;
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mips_jazz_init(get_system_memory(), get_system_io(),
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ram_size, cpu_model, JAZZ_MAGNUM);
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}
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static
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void mips_pica61_init(QEMUMachineInitArgs *args)
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{
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ram_addr_t ram_size = args->ram_size;
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const char *cpu_model = args->cpu_model;
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mips_jazz_init(get_system_memory(), get_system_io(),
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ram_size, cpu_model, JAZZ_PICA61);
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}
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static QEMUMachine mips_magnum_machine = {
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.name = "magnum",
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.desc = "MIPS Magnum",
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.init = mips_magnum_init,
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.block_default_type = IF_SCSI,
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DEFAULT_MACHINE_OPTIONS,
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};
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static QEMUMachine mips_pica61_machine = {
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.name = "pica61",
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.desc = "Acer Pica 61",
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.init = mips_pica61_init,
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.block_default_type = IF_SCSI,
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DEFAULT_MACHINE_OPTIONS,
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};
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static void mips_jazz_machine_init(void)
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{
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qemu_register_machine(&mips_magnum_machine);
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qemu_register_machine(&mips_pica61_machine);
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}
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machine_init(mips_jazz_machine_init);
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