qemu/hw/mips_jazz.c
aliguori 6295e564f7 Remove nodisk_ok machine feature (Jan Kiszka)
All archs have some kind of firmware to load and can be fine with it
already. So there is not much use in enforcing the presence of a disk.
If the system setup requires one, the user will notice it anyway once
the firmware/bios fails to boot from it.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6899 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-28 17:28:58 +00:00

307 lines
8.5 KiB
C

/*
* 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,
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(phys_ram_base + ram_size, ram_size, vga_ram_size,
0x40000000, 0x60000000, 0, rc4030[3]);
break;
case JAZZ_PICA61:
isa_vga_mm_init(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], 1980);
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(0x8000f000);
}
static
void mips_magnum_init (ram_addr_t ram_size, int vga_ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
mips_jazz_init(ram_size, vga_ram_size, cpu_model, JAZZ_MAGNUM);
}
static
void mips_pica61_init (ram_addr_t ram_size, int vga_ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
mips_jazz_init(ram_size, vga_ram_size, 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,
.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,
.use_scsi = 1,
};