diff options
Diffstat (limited to 'hw/mips_jazz.c')
-rw-r--r-- | hw/mips_jazz.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/hw/mips_jazz.c b/hw/mips_jazz.c new file mode 100644 index 0000000..910ddb9 --- /dev/null +++ b/hw/mips_jazz.c @@ -0,0 +1,275 @@ +/* + * 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 "pc.h" +#include "isa.h" +#include "fdc.h" +#include "sysemu.h" +#include "audio/audio.h" +#include "boards.h" +#include "net.h" +#include "scsi.h" + +extern int nographic; + +#ifdef TARGET_WORDS_BIGENDIAN +#define BIOS_FILENAME "mips_bios.bin" +#else +#define BIOS_FILENAME "mipsel_bios.bin" +#endif + +#ifdef TARGET_MIPS64 +#define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffULL) +#else +#define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffU) +#endif +#define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000)) + +enum jazz_model_e +{ + JAZZ_MAGNUM, +}; + +static void main_cpu_reset(void *opaque) +{ + CPUState *env = opaque; + cpu_reset(env); +} + +static uint32_t rtc_readb(void *opaque, target_phys_addr_t addr) +{ + CPUState *env = opaque; + return cpu_inw(env, 0x71); +} + +static void rtc_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) +{ + CPUState *env = opaque; + cpu_outw(env, 0x71, val & 0xff); +} + +static CPUReadMemoryFunc *rtc_read[3] = { + rtc_readb, + rtc_readb, + rtc_readb, +}; + +static CPUWriteMemoryFunc *rtc_write[3] = { + rtc_writeb, + rtc_writeb, + rtc_writeb, +}; + +#ifdef HAS_AUDIO +static void audio_init(qemu_irq *pic) +{ + struct soundhw *c; + int audio_enabled = 0; + + for (c = soundhw; !audio_enabled && c->name; ++c) { + audio_enabled = c->enabled; + } + + if (audio_enabled) { + AudioState *s; + + s = AUD_init(); + if (s) { + for (c = soundhw; c->name; ++c) { + if (c->enabled) { + if (c->isa) { + c->init.init_isa(s, pic); + } + } + } + } + } +} +#endif + +void espdma_memory_read(void *opaque, uint8_t *buf, int len) +{ + printf("espdma_memory_read(buf %p, len %d) not implemented\n", buf, len); +} + +void espdma_memory_write(void *opaque, uint8_t *buf, int len) +{ + printf("espdma_memory_write(buf %p, len %d) not implemented\n", buf, len); +} + +#define MAGNUM_BIOS_SIZE_MAX 0x7e000 +#define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX) + +static +void mips_jazz_init (int ram_size, int vga_ram_size, + DisplayState *ds, const char *cpu_model, + enum jazz_model_e jazz_model) +{ + char buf[1024]; + unsigned long bios_offset; + int bios_size, n; + CPUState *env; + qemu_irq *rc4030, *i8259; + void *scsi_hba; + int hd; + int s_rtc; + PITState *pit; + BlockDriverState *fds[MAX_FD]; + qemu_irq esp_reset; + + /* 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 + } + env = cpu_init(cpu_model); + if (!env) { + fprintf(stderr, "Unable to find CPU definition\n"); + exit(1); + } + register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); + qemu_register_reset(main_cpu_reset, env); + + /* allocate RAM */ + cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); + + /* load the BIOS image. */ + bios_offset = ram_size + vga_ram_size; + snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); + bios_size = load_image(buf, phys_ram_base + bios_offset); + if (bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) { + fprintf(stderr, "qemu: Could not load MIPS bios '%s'\n", + buf); + exit(1); + } + + cpu_register_physical_memory(0x1fc00000LL, + MAGNUM_BIOS_SIZE, bios_offset | IO_MEM_ROM); + cpu_register_physical_memory(0xfff00000LL, + MAGNUM_BIOS_SIZE, bios_offset | IO_MEM_ROM); + + /* Init CPU internal devices */ + cpu_mips_irq_init_cpu(env); + cpu_mips_clock_init(env); + + /* Chipset */ + rc4030 = rc4030_init(env->irq[6], env->irq[3]); + + /* ISA devices */ + i8259 = i8259_init(env->irq[4]); + pit = pit_init(0x40, i8259[0]); + pcspk_init(pit); + + /* ISA IO space at 0x90000000 */ + isa_mmio_init(0x90000000, 0x01000000); + isa_mem_base = 0x11000000; + + /* Video card */ + switch (jazz_model) { + case JAZZ_MAGNUM: + g364fb_mm_init(ds, vga_ram_size, 0, 0x40000000, 0x60000000); + break; + default: + break; + } + + /* Network controller */ + /* FIXME: missing NS SONIC DP83932 */ + + /* SCSI adapter */ + scsi_hba = esp_init(0x80002000, + espdma_memory_read, espdma_memory_write, NULL, + rc4030[5], &esp_reset); + for (n = 0; n < ESP_MAX_DEVS; n++) { + hd = drive_get_index(IF_SCSI, 0, n); + if (hd != -1) { + esp_scsi_attach(scsi_hba, drives_table[hd].bdrv, n); + } + } + + /* 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++) { + int fd = drive_get_index(IF_FLOPPY, 0, n); + if (fd != -1) + fds[n] = drives_table[fd].bdrv; + else + fds[n] = NULL; + } + fdctrl_init(rc4030[1], 0, 1, 0x80003000, fds); + + /* Real time clock */ + rtc_init(0x70, i8259[8]); + s_rtc = cpu_register_io_memory(0, rtc_read, rtc_write, env); + cpu_register_physical_memory(0x80004000, 0x00001000, s_rtc); + + /* Keyboard (i8042) */ + i8042_mm_init(rc4030[6], rc4030[7], 0x80005000, 0); + + /* Serial ports */ + if (serial_hds[0]) + serial_mm_init(0x80006000, 0, rc4030[8], serial_hds[0], 1); + if (serial_hds[1]) + serial_mm_init(0x80007000, 0, rc4030[9], serial_hds[1], 1); + + /* Parallel port */ + if (parallel_hds[0]) + parallel_mm_init(0x80008000, 0, rc4030[0], parallel_hds[0]); + + /* Sound card */ + /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */ +#ifdef HAS_AUDIO + audio_init(i8259); +#endif + + /* NVRAM: Unprotected at 0x9000, Protected at 0xa000, Read only at 0xb000 */ + ds1225y_init(0x80009000, "nvram"); + + /* LED indicator */ + jazz_led_init(ds, 0x8000f000); +} + +static +void mips_magnum_init (int ram_size, int vga_ram_size, + const char *boot_device, DisplayState *ds, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + mips_jazz_init(ram_size, vga_ram_size, ds, cpu_model, JAZZ_MAGNUM); +} + +QEMUMachine mips_magnum_machine = { + "magnum", + "MIPS Magnum", + mips_magnum_init, +}; |