* THE SOFTWARE.
*/
-#include "vl.h"
-
-#ifdef TARGET_WORDS_BIGENDIAN
-#define BIOS_FILENAME "mips_bios.bin"
-#else
-#define BIOS_FILENAME "mipsel_bios.bin"
-#endif
-
-#ifdef MIPS_HAS_MIPS64
-#define INITRD_LOAD_ADDR (int64_t)0x80800000
+#include "hw.h"
+#include "pc.h"
+#include "fdc.h"
+#include "net.h"
+#include "boards.h"
+#include "smbus.h"
+#include "block.h"
+#include "flash.h"
+#include "mips.h"
+#include "pci.h"
+#include "qemu-char.h"
+#include "sysemu.h"
+#include "audio/audio.h"
+#include "boards.h"
+#include "qemu-log.h"
+#include "mips-bios.h"
+#include "ide.h"
+
+//#define DEBUG_BOARD_INIT
+
+#ifdef TARGET_MIPS64
+#define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffULL)
#else
-#define INITRD_LOAD_ADDR (int32_t)0x80800000
+#define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffU)
#endif
-#define ENVP_ADDR (int32_t)0x80002000
-#define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
+#define ENVP_ADDR (int32_t)0x80002000
+#define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
#define ENVP_NB_ENTRIES 16
#define ENVP_ENTRY_SIZE 256
-
-extern FILE *logfile;
+#define MAX_IDE_BUS 2
typedef struct {
uint32_t leds;
uint32_t i2csel;
CharDriverState *display;
char display_text[9];
+ SerialState *uart;
} MaltaFPGAState;
static PITState *pit;
-/* The 8259 is attached to the MIPS CPU INT0 pin, ie interrupt 2 */
-static void pic_irq_request(void *opaque, int level)
-{
- cpu_mips_irq_request(opaque, 2, level);
-}
+static struct _loaderparams {
+ int ram_size;
+ const char *kernel_filename;
+ const char *kernel_cmdline;
+ const char *initrd_filename;
+} loaderparams;
/* Malta FPGA */
static void malta_fpga_update_display(void *opaque)
for (i = 7 ; i >= 0 ; i--) {
if (s->leds & (1 << i))
leds_text[i] = '#';
- else
+ else
leds_text[i] = ' ';
}
leds_text[8] = '\0';
//~ #define DEBUG
#if defined(DEBUG)
-# define logout(fmt, args...) fprintf(stderr, "MALTA\t%-24s" fmt, __func__, ##args)
+# define logout(fmt, ...) fprintf(stderr, "MALTA\t%-24s" fmt, __func__, ## __VA_ARGS__)
#else
-# define logout(fmt, args...) ((void)0)
+# define logout(fmt, ...) ((void)0)
#endif
struct _eeprom24c0x_t {
},
};
-static uint8_t eeprom24c0x_read()
+static uint8_t eeprom24c0x_read(void)
{
logout("%u: scl = %u, sda = %u, data = 0x%02x\n",
eeprom.tick, eeprom.scl, eeprom.sda, eeprom.data);
val = s->brk;
break;
+ /* UART Registers are handled directly by the serial device */
+
/* GPOUT Register */
case 0x00a00:
val = s->gpout;
s->brk = val & 0xff;
break;
+ /* UART Registers are handled directly by the serial device */
+
/* GPOUT Register */
case 0x00a00:
s->gpout = val & 0xff;
}
}
-static CPUReadMemoryFunc *malta_fpga_read[] = {
+static CPUReadMemoryFunc * const malta_fpga_read[] = {
malta_fpga_readl,
malta_fpga_readl,
malta_fpga_readl
};
-static CPUWriteMemoryFunc *malta_fpga_write[] = {
+static CPUWriteMemoryFunc * const malta_fpga_write[] = {
malta_fpga_writel,
malta_fpga_writel,
malta_fpga_writel
};
-void malta_fpga_reset(void *opaque)
+static void malta_fpga_reset(void *opaque)
{
MaltaFPGAState *s = opaque;
s->display_text[8] = '\0';
snprintf(s->display_text, 9, " ");
- malta_fpga_update_display(s);
}
-MaltaFPGAState *malta_fpga_init(target_phys_addr_t base)
+static void malta_fpga_led_init(CharDriverState *chr)
+{
+ qemu_chr_printf(chr, "\e[HMalta LEDBAR\r\n");
+ qemu_chr_printf(chr, "+--------+\r\n");
+ qemu_chr_printf(chr, "+ +\r\n");
+ qemu_chr_printf(chr, "+--------+\r\n");
+ qemu_chr_printf(chr, "\n");
+ qemu_chr_printf(chr, "Malta ASCII\r\n");
+ qemu_chr_printf(chr, "+--------+\r\n");
+ qemu_chr_printf(chr, "+ +\r\n");
+ qemu_chr_printf(chr, "+--------+\r\n");
+}
+
+static MaltaFPGAState *malta_fpga_init(target_phys_addr_t base, qemu_irq uart_irq, CharDriverState *uart_chr)
{
MaltaFPGAState *s;
int malta;
s = (MaltaFPGAState *)qemu_mallocz(sizeof(MaltaFPGAState));
- malta = cpu_register_io_memory(0, malta_fpga_read,
+ malta = cpu_register_io_memory(malta_fpga_read,
malta_fpga_write, s);
- cpu_register_physical_memory(base, 0x100000, malta);
-
- s->display = qemu_chr_open("vc");
- qemu_chr_printf(s->display, "\e[HMalta LEDBAR\r\n");
- qemu_chr_printf(s->display, "+--------+\r\n");
- qemu_chr_printf(s->display, "+ +\r\n");
- qemu_chr_printf(s->display, "+--------+\r\n");
- qemu_chr_printf(s->display, "\n");
- qemu_chr_printf(s->display, "Malta ASCII\r\n");
- qemu_chr_printf(s->display, "+--------+\r\n");
- qemu_chr_printf(s->display, "+ +\r\n");
- qemu_chr_printf(s->display, "+--------+\r\n");
+
+ cpu_register_physical_memory(base, 0x900, malta);
+ /* 0xa00 is less than a page, so will still get the right offsets. */
+ cpu_register_physical_memory(base + 0xa00, 0x100000 - 0xa00, malta);
+
+ s->display = qemu_chr_open("fpga", "vc:320x200", malta_fpga_led_init);
+
+ s->uart = serial_mm_init(base + 0x900, 3, uart_irq, 230400, uart_chr, 1);
malta_fpga_reset(s);
qemu_register_reset(malta_fpga_reset, s);
}
if (audio_enabled) {
- AudioState *s;
-
- s = AUD_init ();
- if (s) {
- for (c = soundhw; c->name; ++c) {
- if (c->enabled) {
- if (c->isa) {
- fprintf(stderr, "qemu: Unsupported Sound Card: %s\n", c->name);
- exit(1);
- }
- else {
- if (pci_bus) {
- c->init.init_pci (pci_bus, s);
- }
- }
- }
+ for (c = soundhw; c->name; ++c) {
+ if (c->enabled) {
+ c->init.init_pci(pci_bus);
}
}
}
#endif
/* Network support */
-static void network_init (PCIBus *pci_bus)
+static void network_init(void)
{
int i;
- NICInfo *nd;
for(i = 0; i < nb_nics; i++) {
- nd = &nd_table[i];
- if (!nd->model) {
- nd->model = "pcnet";
- }
- if (i == 0 && strcmp(nd->model, "pcnet") == 0) {
+ NICInfo *nd = &nd_table[i];
+ const char *default_devaddr = NULL;
+
+ if (i == 0 && (!nd->model || strcmp(nd->model, "pcnet") == 0))
/* The malta board has a PCNet card using PCI SLOT 11 */
- pci_nic_init(pci_bus, nd, 88);
- } else {
- pci_nic_init(pci_bus, nd, -1);
- }
+ default_devaddr = "0b";
+
+ pci_nic_init(nd, "pcnet", default_devaddr);
}
}
a3 - RAM size in bytes
*/
-static void write_bootloader (CPUState *env, unsigned long bios_offset, int64_t kernel_addr)
+static void write_bootloader (CPUState *env, uint8_t *base,
+ int64_t kernel_entry)
{
uint32_t *p;
/* Small bootloader */
- p = (uint32_t *) (phys_ram_base + bios_offset);
- stl_raw(p++, 0x0bf00010); /* j 0x1fc00040 */
+ p = (uint32_t *)base;
+ stl_raw(p++, 0x0bf00160); /* j 0x1fc00580 */
stl_raw(p++, 0x00000000); /* nop */
+ /* YAMON service vector */
+ stl_raw(base + 0x500, 0xbfc00580); /* start: */
+ stl_raw(base + 0x504, 0xbfc0083c); /* print_count: */
+ stl_raw(base + 0x520, 0xbfc00580); /* start: */
+ stl_raw(base + 0x52c, 0xbfc00800); /* flush_cache: */
+ stl_raw(base + 0x534, 0xbfc00808); /* print: */
+ stl_raw(base + 0x538, 0xbfc00800); /* reg_cpu_isr: */
+ stl_raw(base + 0x53c, 0xbfc00800); /* unred_cpu_isr: */
+ stl_raw(base + 0x540, 0xbfc00800); /* reg_ic_isr: */
+ stl_raw(base + 0x544, 0xbfc00800); /* unred_ic_isr: */
+ stl_raw(base + 0x548, 0xbfc00800); /* reg_esr: */
+ stl_raw(base + 0x54c, 0xbfc00800); /* unreg_esr: */
+ stl_raw(base + 0x550, 0xbfc00800); /* getchar: */
+ stl_raw(base + 0x554, 0xbfc00800); /* syscon_read: */
+
+
/* Second part of the bootloader */
- p = (uint32_t *) (phys_ram_base + bios_offset + 0x040);
- stl_raw(p++, 0x3c040000); /* lui a0, 0 */
- stl_raw(p++, 0x34840002); /* ori a0, a0, 2 */
+ p = (uint32_t *) (base + 0x580);
+ stl_raw(p++, 0x24040002); /* addiu a0, zero, 2 */
+ stl_raw(p++, 0x3c1d0000 | (((ENVP_ADDR - 64) >> 16) & 0xffff)); /* lui sp, high(ENVP_ADDR) */
+ stl_raw(p++, 0x37bd0000 | ((ENVP_ADDR - 64) & 0xffff)); /* ori sp, sp, low(ENVP_ADDR) */
stl_raw(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */
- stl_raw(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a0, low(ENVP_ADDR) */
+ stl_raw(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a1, low(ENVP_ADDR) */
stl_raw(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */
stl_raw(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */
- stl_raw(p++, 0x3c070000 | (env->ram_size >> 16)); /* lui a3, high(env->ram_size) */
- stl_raw(p++, 0x34e70000 | (env->ram_size & 0xffff)); /* ori a3, a3, low(env->ram_size) */
- stl_raw(p++, 0x3c1f0000 | ((kernel_addr >> 16) & 0xffff)); /* lui ra, high(kernel_addr) */;
- stl_raw(p++, 0x37ff0000 | (kernel_addr & 0xffff)); /* ori ra, ra, low(kernel_addr) */
+ stl_raw(p++, 0x3c070000 | (loaderparams.ram_size >> 16)); /* lui a3, high(ram_size) */
+ stl_raw(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff)); /* ori a3, a3, low(ram_size) */
+
+ /* Load BAR registers as done by YAMON */
+ stl_raw(p++, 0x3c09b400); /* lui t1, 0xb400 */
+
+#ifdef TARGET_WORDS_BIGENDIAN
+ stl_raw(p++, 0x3c08df00); /* lui t0, 0xdf00 */
+#else
+ stl_raw(p++, 0x340800df); /* ori t0, r0, 0x00df */
+#endif
+ stl_raw(p++, 0xad280068); /* sw t0, 0x0068(t1) */
+
+ stl_raw(p++, 0x3c09bbe0); /* lui t1, 0xbbe0 */
+
+#ifdef TARGET_WORDS_BIGENDIAN
+ stl_raw(p++, 0x3c08c000); /* lui t0, 0xc000 */
+#else
+ stl_raw(p++, 0x340800c0); /* ori t0, r0, 0x00c0 */
+#endif
+ stl_raw(p++, 0xad280048); /* sw t0, 0x0048(t1) */
+#ifdef TARGET_WORDS_BIGENDIAN
+ stl_raw(p++, 0x3c084000); /* lui t0, 0x4000 */
+#else
+ stl_raw(p++, 0x34080040); /* ori t0, r0, 0x0040 */
+#endif
+ stl_raw(p++, 0xad280050); /* sw t0, 0x0050(t1) */
+
+#ifdef TARGET_WORDS_BIGENDIAN
+ stl_raw(p++, 0x3c088000); /* lui t0, 0x8000 */
+#else
+ stl_raw(p++, 0x34080080); /* ori t0, r0, 0x0080 */
+#endif
+ stl_raw(p++, 0xad280058); /* sw t0, 0x0058(t1) */
+#ifdef TARGET_WORDS_BIGENDIAN
+ stl_raw(p++, 0x3c083f00); /* lui t0, 0x3f00 */
+#else
+ stl_raw(p++, 0x3408003f); /* ori t0, r0, 0x003f */
+#endif
+ stl_raw(p++, 0xad280060); /* sw t0, 0x0060(t1) */
+
+#ifdef TARGET_WORDS_BIGENDIAN
+ stl_raw(p++, 0x3c08c100); /* lui t0, 0xc100 */
+#else
+ stl_raw(p++, 0x340800c1); /* ori t0, r0, 0x00c1 */
+#endif
+ stl_raw(p++, 0xad280080); /* sw t0, 0x0080(t1) */
+#ifdef TARGET_WORDS_BIGENDIAN
+ stl_raw(p++, 0x3c085e00); /* lui t0, 0x5e00 */
+#else
+ stl_raw(p++, 0x3408005e); /* ori t0, r0, 0x005e */
+#endif
+ stl_raw(p++, 0xad280088); /* sw t0, 0x0088(t1) */
+
+ /* Jump to kernel code */
+ stl_raw(p++, 0x3c1f0000 | ((kernel_entry >> 16) & 0xffff)); /* lui ra, high(kernel_entry) */
+ stl_raw(p++, 0x37ff0000 | (kernel_entry & 0xffff)); /* ori ra, ra, low(kernel_entry) */
stl_raw(p++, 0x03e00008); /* jr ra */
stl_raw(p++, 0x00000000); /* nop */
+
+ /* YAMON subroutines */
+ p = (uint32_t *) (base + 0x800);
+ stl_raw(p++, 0x03e00008); /* jr ra */
+ stl_raw(p++, 0x24020000); /* li v0,0 */
+ /* 808 YAMON print */
+ stl_raw(p++, 0x03e06821); /* move t5,ra */
+ stl_raw(p++, 0x00805821); /* move t3,a0 */
+ stl_raw(p++, 0x00a05021); /* move t2,a1 */
+ stl_raw(p++, 0x91440000); /* lbu a0,0(t2) */
+ stl_raw(p++, 0x254a0001); /* addiu t2,t2,1 */
+ stl_raw(p++, 0x10800005); /* beqz a0,834 */
+ stl_raw(p++, 0x00000000); /* nop */
+ stl_raw(p++, 0x0ff0021c); /* jal 870 */
+ stl_raw(p++, 0x00000000); /* nop */
+ stl_raw(p++, 0x08000205); /* j 814 */
+ stl_raw(p++, 0x00000000); /* nop */
+ stl_raw(p++, 0x01a00008); /* jr t5 */
+ stl_raw(p++, 0x01602021); /* move a0,t3 */
+ /* 0x83c YAMON print_count */
+ stl_raw(p++, 0x03e06821); /* move t5,ra */
+ stl_raw(p++, 0x00805821); /* move t3,a0 */
+ stl_raw(p++, 0x00a05021); /* move t2,a1 */
+ stl_raw(p++, 0x00c06021); /* move t4,a2 */
+ stl_raw(p++, 0x91440000); /* lbu a0,0(t2) */
+ stl_raw(p++, 0x0ff0021c); /* jal 870 */
+ stl_raw(p++, 0x00000000); /* nop */
+ stl_raw(p++, 0x254a0001); /* addiu t2,t2,1 */
+ stl_raw(p++, 0x258cffff); /* addiu t4,t4,-1 */
+ stl_raw(p++, 0x1580fffa); /* bnez t4,84c */
+ stl_raw(p++, 0x00000000); /* nop */
+ stl_raw(p++, 0x01a00008); /* jr t5 */
+ stl_raw(p++, 0x01602021); /* move a0,t3 */
+ /* 0x870 */
+ stl_raw(p++, 0x3c08b800); /* lui t0,0xb400 */
+ stl_raw(p++, 0x350803f8); /* ori t0,t0,0x3f8 */
+ stl_raw(p++, 0x91090005); /* lbu t1,5(t0) */
+ stl_raw(p++, 0x00000000); /* nop */
+ stl_raw(p++, 0x31290040); /* andi t1,t1,0x40 */
+ stl_raw(p++, 0x1120fffc); /* beqz t1,878 <outch+0x8> */
+ stl_raw(p++, 0x00000000); /* nop */
+ stl_raw(p++, 0x03e00008); /* jr ra */
+ stl_raw(p++, 0xa1040000); /* sb a0,0(t0) */
+
}
static void prom_set(int index, const char *string, ...)
{
+ char buf[ENVP_ENTRY_SIZE];
+ target_phys_addr_t p;
va_list ap;
- int32_t *p;
int32_t table_addr;
- char *s;
if (index >= ENVP_NB_ENTRIES)
return;
- p = (int32_t *) (phys_ram_base + ENVP_ADDR + VIRT_TO_PHYS_ADDEND);
- p += index;
+ p = ENVP_ADDR + VIRT_TO_PHYS_ADDEND + index * 4;
if (string == NULL) {
- stl_raw(p, 0);
+ stl_phys(p, 0);
return;
}
- table_addr = ENVP_ADDR + sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE;
- s = (char *) (phys_ram_base + VIRT_TO_PHYS_ADDEND + table_addr);
-
- stl_raw(p, table_addr);
+ table_addr = ENVP_ADDR + sizeof(int32_t) * ENVP_NB_ENTRIES
+ + index * ENVP_ENTRY_SIZE;
+ stl_phys(p, table_addr);
va_start(ap, string);
- vsnprintf (s, ENVP_ENTRY_SIZE, string, ap);
+ vsnprintf(buf, ENVP_ENTRY_SIZE, string, ap);
va_end(ap);
+ pstrcpy_targphys(table_addr + VIRT_TO_PHYS_ADDEND, ENVP_ENTRY_SIZE, buf);
}
/* Kernel */
static int64_t load_kernel (CPUState *env)
{
- int64_t kernel_addr = 0;
+ int64_t kernel_entry, kernel_low, kernel_high;
int index = 0;
long initrd_size;
+ ram_addr_t initrd_offset;
- if (load_elf(env->kernel_filename, VIRT_TO_PHYS_ADDEND, &kernel_addr) < 0) {
+ if (load_elf(loaderparams.kernel_filename, VIRT_TO_PHYS_ADDEND,
+ (uint64_t *)&kernel_entry, (uint64_t *)&kernel_low,
+ (uint64_t *)&kernel_high) < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
- env->kernel_filename);
- exit(1);
+ loaderparams.kernel_filename);
+ exit(1);
}
/* load initrd */
initrd_size = 0;
- if (env->initrd_filename) {
- initrd_size = load_image(env->initrd_filename,
- phys_ram_base + INITRD_LOAD_ADDR + VIRT_TO_PHYS_ADDEND);
+ initrd_offset = 0;
+ if (loaderparams.initrd_filename) {
+ initrd_size = get_image_size (loaderparams.initrd_filename);
+ if (initrd_size > 0) {
+ initrd_offset = (kernel_high + ~TARGET_PAGE_MASK) & TARGET_PAGE_MASK;
+ if (initrd_offset + initrd_size > ram_size) {
+ fprintf(stderr,
+ "qemu: memory too small for initial ram disk '%s'\n",
+ loaderparams.initrd_filename);
+ exit(1);
+ }
+ initrd_size = load_image_targphys(loaderparams.initrd_filename,
+ initrd_offset,
+ ram_size - initrd_offset);
+ }
if (initrd_size == (target_ulong) -1) {
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
- env->initrd_filename);
+ loaderparams.initrd_filename);
exit(1);
}
}
/* Store command line. */
- prom_set(index++, env->kernel_filename);
+ prom_set(index++, loaderparams.kernel_filename);
if (initrd_size > 0)
- prom_set(index++, "rd_start=0x" TARGET_FMT_lx " rd_size=%li %s", INITRD_LOAD_ADDR, initrd_size, env->kernel_cmdline);
+ prom_set(index++, "rd_start=0x" TARGET_FMT_lx " rd_size=%li %s",
+ PHYS_TO_VIRT(initrd_offset), initrd_size,
+ loaderparams.kernel_cmdline);
else
- prom_set(index++, env->kernel_cmdline);
+ prom_set(index++, loaderparams.kernel_cmdline);
/* Setup minimum environment variables */
prom_set(index++, "memsize");
- prom_set(index++, "%i", env->ram_size);
+ prom_set(index++, "%i", loaderparams.ram_size);
prom_set(index++, "modetty0");
prom_set(index++, "38400n8r");
prom_set(index++, NULL);
- return kernel_addr;
+ return kernel_entry;
}
static void main_cpu_reset(void *opaque)
/* The bootload does not need to be rewritten as it is located in a
read only location. The kernel location and the arguments table
location does not change. */
- if (env->kernel_filename)
+ if (loaderparams.kernel_filename) {
+ env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
load_kernel (env);
+ }
}
static
-void mips_malta_init (int ram_size, int vga_ram_size, int boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
+void mips_malta_init (ram_addr_t ram_size,
+ const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
- char buf[1024];
- unsigned long bios_offset;
- int64_t kernel_addr;
+ char *filename;
+ ram_addr_t ram_offset;
+ ram_addr_t bios_offset;
+ target_long bios_size;
+ int64_t kernel_entry;
PCIBus *pci_bus;
+ ISADevice *isa_dev;
CPUState *env;
RTCState *rtc_state;
- /* fdctrl_t *floppy_controller; */
+ fdctrl_t *floppy_controller;
MaltaFPGAState *malta_fpga;
- int ret;
+ qemu_irq *i8259;
+ int piix4_devfn;
+ uint8_t *eeprom_buf;
+ i2c_bus *smbus;
+ int i;
+ DriveInfo *dinfo;
+ DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+ BlockDriverState *fd[MAX_FD];
+ int fl_idx = 0;
+ int fl_sectors = 0;
+
+ /* Make sure the first 3 serial ports are associated with a device. */
+ for(i = 0; i < 3; i++) {
+ if (!serial_hds[i]) {
+ char label[32];
+ snprintf(label, sizeof(label), "serial%d", i);
+ serial_hds[i] = qemu_chr_open(label, "null", NULL);
+ }
+ }
- env = cpu_init();
- register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
+ /* init CPUs */
+ if (cpu_model == NULL) {
+#ifdef TARGET_MIPS64
+ cpu_model = "20Kc";
+#else
+ 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);
+ if (ram_size > (256 << 20)) {
+ fprintf(stderr,
+ "qemu: Too much memory for this machine: %d MB, maximum 256 MB\n",
+ ((unsigned int)ram_size / (1 << 20)));
+ exit(1);
+ }
+ ram_offset = qemu_ram_alloc(ram_size);
+ bios_offset = qemu_ram_alloc(BIOS_SIZE);
+
- /* Map the bios at two physical locations, as on the real board */
- bios_offset = ram_size + vga_ram_size;
+ cpu_register_physical_memory(0, ram_size, ram_offset | IO_MEM_RAM);
+
+ /* Map the bios at two physical locations, as on the real board. */
cpu_register_physical_memory(0x1e000000LL,
BIOS_SIZE, bios_offset | IO_MEM_ROM);
cpu_register_physical_memory(0x1fc00000LL,
BIOS_SIZE, bios_offset | IO_MEM_ROM);
- /* Load a BIOS image except if a kernel image has been specified. In
- the later case, just write a small bootloader to the flash
- location. */
+ /* FPGA */
+ malta_fpga = malta_fpga_init(0x1f000000LL, env->irq[2], serial_hds[2]);
+
+ /* Load firmware in flash / BIOS unless we boot directly into a kernel. */
if (kernel_filename) {
- env->ram_size = ram_size;
- env->kernel_filename = kernel_filename;
- env->kernel_cmdline = kernel_cmdline;
- env->initrd_filename = initrd_filename;
- kernel_addr = load_kernel(env);
- write_bootloader(env, bios_offset, kernel_addr);
+ /* Write a small bootloader to the flash location. */
+ loaderparams.ram_size = ram_size;
+ loaderparams.kernel_filename = kernel_filename;
+ loaderparams.kernel_cmdline = kernel_cmdline;
+ loaderparams.initrd_filename = initrd_filename;
+ kernel_entry = load_kernel(env);
+ env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
+ write_bootloader(env, qemu_get_ram_ptr(bios_offset), kernel_entry);
} else {
- snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
- ret = load_image(buf, phys_ram_base + bios_offset);
- if (ret < 0 || ret > BIOS_SIZE) {
- fprintf(stderr, "qemu: Warning, could not load MIPS bios '%s'\n",
- buf);
- exit(1);
+ dinfo = drive_get(IF_PFLASH, 0, fl_idx);
+ if (dinfo) {
+ /* Load firmware from flash. */
+ bios_size = 0x400000;
+ fl_sectors = bios_size >> 16;
+#ifdef DEBUG_BOARD_INIT
+ printf("Register parallel flash %d size " TARGET_FMT_lx " at "
+ "offset %08lx addr %08llx '%s' %x\n",
+ fl_idx, bios_size, bios_offset, 0x1e000000LL,
+ bdrv_get_device_name(dinfo->bdrv), fl_sectors);
+#endif
+ pflash_cfi01_register(0x1e000000LL, bios_offset,
+ dinfo->bdrv, 65536, fl_sectors,
+ 4, 0x0000, 0x0000, 0x0000, 0x0000);
+ fl_idx++;
+ } else {
+ /* Load a 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, 0x1fc00000LL,
+ BIOS_SIZE);
+ qemu_free(filename);
+ } else {
+ bios_size = -1;
+ }
+ if ((bios_size < 0 || bios_size > BIOS_SIZE) && !kernel_filename) {
+ fprintf(stderr,
+ "qemu: Could not load MIPS bios '%s', and no -kernel argument was specified\n",
+ bios_name);
+ exit(1);
+ }
}
+ /* In little endian mode the 32bit words in the bios are swapped,
+ a neat trick which allows bi-endian firmware. */
+#ifndef TARGET_WORDS_BIGENDIAN
+ {
+ uint32_t *addr = qemu_get_ram_ptr(bios_offset);;
+ uint32_t *end = addr + bios_size;
+ while (addr < end) {
+ bswap32s(addr);
+ }
+ }
+#endif
}
/* Board ID = 0x420 (Malta Board with CoreLV)
XXX: theoretically 0x1e000010 should map to flash and 0x1fc00010 should
map to the board ID. */
- stl_raw(phys_ram_base + bios_offset + 0x10, 0x00000420);
+ stl_phys(0x1fc00010LL, 0x00000420);
/* Init internal devices */
+ cpu_mips_irq_init_cpu(env);
cpu_mips_clock_init(env);
- cpu_mips_irqctrl_init();
-
- /* FPGA */
- malta_fpga = malta_fpga_init(0x1f000000LL);
/* Interrupt controller */
- isa_pic = pic_init(pic_irq_request, env);
+ /* The 8259 is attached to the MIPS CPU INT0 pin, ie interrupt 2 */
+ i8259 = i8259_init(env->irq[2]);
/* Northbridge */
- pci_bus = pci_gt64120_init(isa_pic);
+ pci_bus = pci_gt64120_init(i8259);
/* Southbridge */
- piix4_init(pci_bus, 80);
- pci_piix3_ide_init(pci_bus, bs_table, 81);
- usb_uhci_init(pci_bus, 82);
- piix4_pm_init(pci_bus, 83);
- pit = pit_init(0x40, 0);
+
+ if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+ fprintf(stderr, "qemu: too many IDE bus\n");
+ exit(1);
+ }
+
+ for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
+ hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
+ }
+
+ piix4_devfn = piix4_init(pci_bus, 80);
+ isa_bus_irqs(i8259);
+ pci_piix4_ide_init(pci_bus, hd, piix4_devfn + 1);
+ usb_uhci_piix4_init(pci_bus, piix4_devfn + 2);
+ smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100, isa_reserve_irq(9));
+ eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
+ for (i = 0; i < 8; i++) {
+ /* TODO: Populate SPD eeprom data. */
+ DeviceState *eeprom;
+ eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
+ qdev_prop_set_uint32(eeprom, "address", 0x50 + i);
+ qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
+ qdev_init(eeprom);
+ }
+ pit = pit_init(0x40, isa_reserve_irq(0));
DMA_init(0);
/* Super I/O */
- kbd_init();
- rtc_state = rtc_init(0x70, 8);
- if (serial_hds[0])
- serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]);
- if (serial_hds[1])
- serial_init(&pic_set_irq_new, isa_pic, 0x2f8, 3, serial_hds[1]);
+ isa_dev = isa_create_simple("i8042");
+
+ rtc_state = rtc_init(2000);
+ serial_init(0x3f8, isa_reserve_irq(4), 115200, serial_hds[0]);
+ serial_init(0x2f8, isa_reserve_irq(3), 115200, serial_hds[1]);
if (parallel_hds[0])
- parallel_init(0x378, 7, parallel_hds[0]);
- /* XXX: The floppy controller does not work correctly, something is
- probably wrong.
- floppy_controller = fdctrl_init(6, 2, 0, 0x3f0, fd_table); */
+ parallel_init(0x378, isa_reserve_irq(7), parallel_hds[0]);
+ for(i = 0; i < MAX_FD; i++) {
+ dinfo = drive_get(IF_FLOPPY, 0, i);
+ fd[i] = dinfo ? dinfo->bdrv : NULL;
+ }
+ floppy_controller = fdctrl_init_isa(fd);
/* Sound card */
#ifdef HAS_AUDIO
#endif
/* Network card */
- network_init(pci_bus);
+ network_init();
+
+ /* Optional PCI video card */
+ if (cirrus_vga_enabled) {
+ pci_cirrus_vga_init(pci_bus);
+ } else if (vmsvga_enabled) {
+ pci_vmsvga_init(pci_bus);
+ } else if (std_vga_enabled) {
+ pci_vga_init(pci_bus, 0, 0);
+ }
}
-QEMUMachine mips_malta_machine = {
- "malta",
- "MIPS Malta Core LV",
- mips_malta_init,
+static QEMUMachine mips_malta_machine = {
+ .name = "malta",
+ .desc = "MIPS Malta Core LV",
+ .init = mips_malta_init,
+ .is_default = 1,
};
+
+static void mips_malta_machine_init(void)
+{
+ qemu_register_machine(&mips_malta_machine);
+}
+
+machine_init(mips_malta_machine_init);