#define BIOS_FILENAME "mipsel_bios.bin"
#endif
-#ifdef MIPS_HAS_MIPS64
-#define INITRD_LOAD_ADDR (int64_t)0x80800000
+#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;
typedef struct {
uint32_t leds;
uint32_t brk;
uint32_t gpout;
+ uint32_t i2cin;
uint32_t i2coe;
uint32_t i2cout;
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);
-}
-
/* 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';
qemu_chr_printf(s->display, "\n\n\n\n|\e[31m%-8.8s\e[00m|", s->display_text);
}
+/*
+ * EEPROM 24C01 / 24C02 emulation.
+ *
+ * Emulation for serial EEPROMs:
+ * 24C01 - 1024 bit (128 x 8)
+ * 24C02 - 2048 bit (256 x 8)
+ *
+ * Typical device names include Microchip 24C02SC or SGS Thomson ST24C02.
+ */
+
+//~ #define DEBUG
+
+#if defined(DEBUG)
+# define logout(fmt, args...) fprintf(stderr, "MALTA\t%-24s" fmt, __func__, ##args)
+#else
+# define logout(fmt, args...) ((void)0)
+#endif
+
+struct _eeprom24c0x_t {
+ uint8_t tick;
+ uint8_t address;
+ uint8_t command;
+ uint8_t ack;
+ uint8_t scl;
+ uint8_t sda;
+ uint8_t data;
+ //~ uint16_t size;
+ uint8_t contents[256];
+};
+
+typedef struct _eeprom24c0x_t eeprom24c0x_t;
+
+static eeprom24c0x_t eeprom = {
+ contents: {
+ /* 00000000: */ 0x80,0x08,0x04,0x0D,0x0A,0x01,0x40,0x00,
+ /* 00000008: */ 0x01,0x75,0x54,0x00,0x82,0x08,0x00,0x01,
+ /* 00000010: */ 0x8F,0x04,0x02,0x01,0x01,0x00,0x0E,0x00,
+ /* 00000018: */ 0x00,0x00,0x00,0x14,0x0F,0x14,0x2D,0x40,
+ /* 00000020: */ 0x15,0x08,0x15,0x08,0x00,0x00,0x00,0x00,
+ /* 00000028: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000030: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000038: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x12,0xD0,
+ /* 00000040: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000048: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000050: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000058: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000060: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000068: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000070: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+ /* 00000078: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x64,0xF4,
+ },
+};
+
+static uint8_t eeprom24c0x_read()
+{
+ logout("%u: scl = %u, sda = %u, data = 0x%02x\n",
+ eeprom.tick, eeprom.scl, eeprom.sda, eeprom.data);
+ return eeprom.sda;
+}
+
+static void eeprom24c0x_write(int scl, int sda)
+{
+ if (eeprom.scl && scl && (eeprom.sda != sda)) {
+ logout("%u: scl = %u->%u, sda = %u->%u i2c %s\n",
+ eeprom.tick, eeprom.scl, scl, eeprom.sda, sda, sda ? "stop" : "start");
+ if (!sda) {
+ eeprom.tick = 1;
+ eeprom.command = 0;
+ }
+ } else if (eeprom.tick == 0 && !eeprom.ack) {
+ /* Waiting for start. */
+ logout("%u: scl = %u->%u, sda = %u->%u wait for i2c start\n",
+ eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
+ } else if (!eeprom.scl && scl) {
+ logout("%u: scl = %u->%u, sda = %u->%u trigger bit\n",
+ eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
+ if (eeprom.ack) {
+ logout("\ti2c ack bit = 0\n");
+ sda = 0;
+ eeprom.ack = 0;
+ } else if (eeprom.sda == sda) {
+ uint8_t bit = (sda != 0);
+ logout("\ti2c bit = %d\n", bit);
+ if (eeprom.tick < 9) {
+ eeprom.command <<= 1;
+ eeprom.command += bit;
+ eeprom.tick++;
+ if (eeprom.tick == 9) {
+ logout("\tcommand 0x%04x, %s\n", eeprom.command, bit ? "read" : "write");
+ eeprom.ack = 1;
+ }
+ } else if (eeprom.tick < 17) {
+ if (eeprom.command & 1) {
+ sda = ((eeprom.data & 0x80) != 0);
+ }
+ eeprom.address <<= 1;
+ eeprom.address += bit;
+ eeprom.tick++;
+ eeprom.data <<= 1;
+ if (eeprom.tick == 17) {
+ eeprom.data = eeprom.contents[eeprom.address];
+ logout("\taddress 0x%04x, data 0x%02x\n", eeprom.address, eeprom.data);
+ eeprom.ack = 1;
+ eeprom.tick = 0;
+ }
+ } else if (eeprom.tick >= 17) {
+ sda = 0;
+ }
+ } else {
+ logout("\tsda changed with raising scl\n");
+ }
+ } else {
+ logout("%u: scl = %u->%u, sda = %u->%u\n", eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
+ }
+ eeprom.scl = scl;
+ eeprom.sda = sda;
+}
+
static uint32_t malta_fpga_readl(void *opaque, target_phys_addr_t addr)
{
MaltaFPGAState *s = opaque;
val = s->brk;
break;
+ /* UART Registers are handled directly by the serial device */
+
/* GPOUT Register */
case 0x00a00:
val = s->gpout;
/* I2CINP Register */
case 0x00b00:
- val = 0x00000003;
+ val = ((s->i2cin & ~1) | eeprom24c0x_read());
break;
/* I2COE Register */
/* I2CSEL Register */
case 0x00b18:
- val = s->i2cout;
+ val = s->i2csel;
break;
default:
#if 0
- printf ("malta_fpga_read: Bad register offset 0x" TLSZ "\n",
+ printf ("malta_fpga_read: Bad register offset 0x" TARGET_FMT_lx "\n",
addr);
#endif
break;
s->brk = val & 0xff;
break;
+ /* UART Registers are handled directly by the serial device */
+
/* GPOUT Register */
case 0x00a00:
s->gpout = val & 0xff;
/* I2COUT Register */
case 0x00b10:
- s->i2cout = val & 0x03;
+ eeprom24c0x_write(val & 0x02, val & 0x01);
+ s->i2cout = val;
break;
/* I2CSEL Register */
case 0x00b18:
- s->i2cout = val & 0x01;
+ s->i2csel = val & 0x01;
break;
default:
#if 0
- printf ("malta_fpga_write: Bad register offset 0x" TLSZ "\n",
+ printf ("malta_fpga_write: Bad register offset 0x" TARGET_FMT_lx "\n",
addr);
#endif
break;
s->leds = 0x00;
s->brk = 0x0a;
s->gpout = 0x00;
+ s->i2cin = 0x3;
s->i2coe = 0x0;
s->i2cout = 0x3;
s->i2csel = 0x1;
malta_fpga_update_display(s);
}
-MaltaFPGAState *malta_fpga_init(target_phys_addr_t base)
+MaltaFPGAState *malta_fpga_init(target_phys_addr_t base, CPUState *env)
{
MaltaFPGAState *s;
+ CharDriverState *uart_chr;
int malta;
s = (MaltaFPGAState *)qemu_mallocz(sizeof(MaltaFPGAState));
malta = cpu_register_io_memory(0, malta_fpga_read,
malta_fpga_write, s);
- cpu_register_physical_memory(base, 0x100000, malta);
+
+ cpu_register_physical_memory(base, 0x900, malta);
+ cpu_register_physical_memory(base + 0xa00, 0x100000 - 0xa00, 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");
+ uart_chr = qemu_chr_open("vc");
+ qemu_chr_printf(uart_chr, "CBUS UART\r\n");
+ s->uart = serial_mm_init(base + 0x900, 3, env->irq[2], uart_chr, 1);
+
malta_fpga_reset(s);
qemu_register_reset(malta_fpga_reset, 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);
- }
- }
- }
+ if (c->enabled)
+ c->init.init_pci (pci_bus, s);
}
}
}
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, unsigned long bios_offset, int64_t kernel_entry)
{
uint32_t *p;
/* Small bootloader */
p = (uint32_t *) (phys_ram_base + bios_offset);
- stl_raw(p++, 0x0bf00010); /* j 0x1fc00040 */
+ stl_raw(p++, 0x0bf00160); /* j 0x1fc00580 */
stl_raw(p++, 0x00000000); /* nop */
+ /* YAMON service vector */
+ stl_raw(phys_ram_base + bios_offset + 0x500, 0xbfc00580); /* start: */
+ stl_raw(phys_ram_base + bios_offset + 0x504, 0xbfc0083c); /* print_count: */
+ stl_raw(phys_ram_base + bios_offset + 0x520, 0xbfc00580); /* start: */
+ stl_raw(phys_ram_base + bios_offset + 0x52c, 0xbfc00800); /* flush_cache: */
+ stl_raw(phys_ram_base + bios_offset + 0x534, 0xbfc00808); /* print: */
+ stl_raw(phys_ram_base + bios_offset + 0x538, 0xbfc00800); /* reg_cpu_isr: */
+ stl_raw(phys_ram_base + bios_offset + 0x53c, 0xbfc00800); /* unred_cpu_isr: */
+ stl_raw(phys_ram_base + bios_offset + 0x540, 0xbfc00800); /* reg_ic_isr: */
+ stl_raw(phys_ram_base + bios_offset + 0x544, 0xbfc00800); /* unred_ic_isr: */
+ stl_raw(phys_ram_base + bios_offset + 0x548, 0xbfc00800); /* reg_esr: */
+ stl_raw(phys_ram_base + bios_offset + 0x54c, 0xbfc00800); /* unreg_esr: */
+ stl_raw(phys_ram_base + bios_offset + 0x550, 0xbfc00800); /* getchar: */
+ stl_raw(phys_ram_base + bios_offset + 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 *) (phys_ram_base + bios_offset + 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) */
+
+ /* 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 *) (phys_ram_base + bios_offset + 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, ...)
/* 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(env->kernel_filename, VIRT_TO_PHYS_ADDEND,
+ &kernel_entry, &kernel_low, &kernel_high) < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
env->kernel_filename);
- exit(1);
+ exit(1);
}
/* load initrd */
initrd_size = 0;
+ initrd_offset = 0;
if (env->initrd_filename) {
- initrd_size = load_image(env->initrd_filename,
- phys_ram_base + INITRD_LOAD_ADDR + VIRT_TO_PHYS_ADDEND);
+ initrd_size = get_image_size (env->initrd_filename);
+ if (initrd_size > 0) {
+ initrd_offset = (kernel_high + ~TARGET_PAGE_MASK) & TARGET_PAGE_MASK;
+ if (initrd_offset + initrd_size > env->ram_size) {
+ fprintf(stderr,
+ "qemu: memory too small for initial ram disk '%s'\n",
+ env->initrd_filename);
+ exit(1);
+ }
+ initrd_size = load_image(env->initrd_filename,
+ phys_ram_base + initrd_offset);
+ }
if (initrd_size == (target_ulong) -1) {
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
env->initrd_filename);
/* Store command line. */
prom_set(index++, env->kernel_filename);
if (initrd_size > 0)
- prom_set(index++, "rd_start=0x" TLSZ " 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,
+ env->kernel_cmdline);
else
prom_set(index++, env->kernel_cmdline);
prom_set(index++, "38400n8r");
prom_set(index++, NULL);
- return kernel_addr;
+ return kernel_entry;
}
static void main_cpu_reset(void *opaque)
{
CPUState *env = opaque;
cpu_reset(env);
+ cpu_mips_register(env, NULL);
/* 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 (env->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,
const char *kernel_filename, const char *kernel_cmdline,
- const char *initrd_filename)
+ const char *initrd_filename, const char *cpu_model)
{
char buf[1024];
unsigned long bios_offset;
- int64_t kernel_addr;
+ int64_t kernel_entry;
PCIBus *pci_bus;
CPUState *env;
RTCState *rtc_state;
/* fdctrl_t *floppy_controller; */
MaltaFPGAState *malta_fpga;
int ret;
+ mips_def_t *def;
+ qemu_irq *i8259;
+ int piix4_devfn;
+ uint8_t *eeprom_buf;
+ i2c_bus *smbus;
+ int i;
+ /* init CPUs */
+ if (cpu_model == NULL) {
+#ifdef TARGET_MIPS64
+ cpu_model = "20Kc";
+#else
+ cpu_model = "24Kf";
+#endif
+ }
+ if (mips_find_by_name(cpu_model, &def) != 0)
+ def = NULL;
env = cpu_init();
+ cpu_mips_register(env, def);
register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
qemu_register_reset(main_cpu_reset, env);
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);
+
+ /* Load a BIOS image unless a kernel image has been specified. */
+ if (!kernel_filename) {
+ if (bios_name == NULL)
+ bios_name = BIOS_FILENAME;
+ snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
+ ret = load_image(buf, phys_ram_base + bios_offset);
+ if (ret < 0 || ret > BIOS_SIZE) {
+ fprintf(stderr,
+ "qemu: Could not load MIPS bios '%s', and no -kernel argument was specified\n",
+ buf);
+ 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;
+ for (addr = (uint32_t *)(phys_ram_base + bios_offset);
+ addr < (uint32_t *)(phys_ram_base + bios_offset + ret);
+ addr++) {
+ *addr = bswap32(*addr);
+ }
+ }
+#endif
+ }
+
+ /* If a kernel image has been specified, write a small bootloader
+ to the flash location. */
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);
- } else {
- snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
- ret = load_image(buf, phys_ram_base + bios_offset);
- if (ret != BIOS_SIZE) {
- fprintf(stderr, "qemu: Warning, could not load MIPS bios '%s'\n",
- buf);
- exit(1);
- }
+ kernel_entry = load_kernel(env);
+ env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
+ write_bootloader(env, bios_offset, kernel_entry);
}
/* Board ID = 0x420 (Malta Board with CoreLV)
stl_raw(phys_ram_base + bios_offset + 0x10, 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);
+ piix4_devfn = piix4_init(pci_bus, 80);
+ pci_piix4_ide_init(pci_bus, bs_table, piix4_devfn + 1, i8259);
+ usb_uhci_piix4_init(pci_bus, piix4_devfn + 2);
+ smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100);
+ eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
+ for (i = 0; i < 8; i++) {
+ /* TODO: Populate SPD eeprom data. */
+ smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i * 256));
+ }
+ pit = pit_init(0x40, i8259[0]);
DMA_init(0);
/* Super I/O */
- kbd_init();
- rtc_state = rtc_init(0x70, 8);
- serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]);
- parallel_init(0x378, 7, parallel_hds[0]);
+ i8042_init(i8259[1], i8259[12], 0x60);
+ rtc_state = rtc_init(0x70, i8259[8]);
+ if (serial_hds[0])
+ serial_init(0x3f8, i8259[4], serial_hds[0]);
+ if (serial_hds[1])
+ serial_init(0x2f8, i8259[3], serial_hds[1]);
+ if (parallel_hds[0])
+ parallel_init(0x378, i8259[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); */
+ floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd_table); */
/* Sound card */
#ifdef HAS_AUDIO
/* Network card */
network_init(pci_bus);
+
+ /* Optional PCI video card */
+ pci_cirrus_vga_init(pci_bus, ds, phys_ram_base + ram_size,
+ ram_size, vga_ram_size);
}
QEMUMachine mips_malta_machine = {
projects / qemu / blobdiff