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qemu-irix/hw/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.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"
#ifdef TARGET_WORDS_BIGENDIAN
#define BIOS_FILENAME "mips_bios.bin"
#else
#define BIOS_FILENAME "mipsel_bios.bin"
#endif
enum jazz_model_e
{
JAZZ_MAGNUM,
JAZZ_PICA61,
};
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,
};
static void dma_dummy_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
{
/* Nothing to do. That is only to ensure that
* the current DMA acknowledge cycle is completed. */
}
static CPUReadMemoryFunc *dma_dummy_read[3] = {
NULL,
NULL,
NULL,
};
static CPUWriteMemoryFunc *dma_dummy_write[3] = {
dma_dummy_writeb,
dma_dummy_writeb,
dma_dummy_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
#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 (ram_addr_t 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;
rc4030_dma *dmas;
rc4030_dma_function dma_read, dma_write;
void *scsi_hba;
int hd;
int s_rtc, s_dma_dummy;
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);
}
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;
if (bios_name == NULL)
bios_name = BIOS_FILENAME;
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
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],
&dmas, &dma_read, &dma_write);
s_dma_dummy = cpu_register_io_memory(0, dma_dummy_read, dma_dummy_write, NULL);
cpu_register_physical_memory(0x8000d000, 0x00001000, s_dma_dummy);
/* ISA devices */
i8259 = i8259_init(env->irq[4]);
DMA_init(0);
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;
case JAZZ_PICA61:
isa_vga_mm_init(ds, phys_ram_base + ram_size, ram_size, vga_ram_size,
0x40000000, 0x60000000, 0);
break;
default:
break;
}
/* Network controller */
/* FIXME: missing NS SONIC DP83932 */
/* SCSI adapter */
scsi_hba = esp_init(0x80002000, 0,
dma_read, dma_write, dmas[0],
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, 0x1000, 0x1);
/* Serial ports */
if (serial_hds[0])
serial_mm_init(0x80006000, 0, rc4030[8], 8000000/16, serial_hds[0], 1);
if (serial_hds[1])
serial_mm_init(0x80007000, 0, rc4030[9], 8000000/16, 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 (ram_addr_t 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);
}
static
void mips_pica61_init (ram_addr_t 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_PICA61);
}
QEMUMachine mips_magnum_machine = {
.name = "magnum",
.desc = "MIPS Magnum",
.init = mips_magnum_init,
.ram_require = MAGNUM_BIOS_SIZE + VGA_RAM_SIZE,
.nodisk_ok = 1,
.use_scsi = 1,
};
QEMUMachine mips_pica61_machine = {
.name = "pica61",
.desc = "Acer Pica 61",
.init = mips_pica61_init,
.ram_require = MAGNUM_BIOS_SIZE + VGA_RAM_SIZE,
.nodisk_ok = 1,
.use_scsi = 1,
};
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