2 * QEMU Malta board support
4 * Copyright (c) 2006 Aurelien Jarno
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 #ifdef TARGET_WORDS_BIGENDIAN
28 #define BIOS_FILENAME "mips_bios.bin"
30 #define BIOS_FILENAME "mipsel_bios.bin"
34 #define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffULL)
36 #define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffU)
39 #define ENVP_ADDR (int32_t)0x80002000
40 #define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
42 #define ENVP_NB_ENTRIES 16
43 #define ENVP_ENTRY_SIZE 256
55 CharDriverState *display;
63 static void malta_fpga_update_display(void *opaque)
67 MaltaFPGAState *s = opaque;
69 for (i = 7 ; i >= 0 ; i--) {
70 if (s->leds & (1 << i))
77 qemu_chr_printf(s->display, "\e[H\n\n|\e[32m%-8.8s\e[00m|\r\n", leds_text);
78 qemu_chr_printf(s->display, "\n\n\n\n|\e[31m%-8.8s\e[00m|", s->display_text);
82 * EEPROM 24C01 / 24C02 emulation.
84 * Emulation for serial EEPROMs:
85 * 24C01 - 1024 bit (128 x 8)
86 * 24C02 - 2048 bit (256 x 8)
88 * Typical device names include Microchip 24C02SC or SGS Thomson ST24C02.
94 # define logout(fmt, args...) fprintf(stderr, "MALTA\t%-24s" fmt, __func__, ##args)
96 # define logout(fmt, args...) ((void)0)
99 struct _eeprom24c0x_t {
108 uint8_t contents[256];
111 typedef struct _eeprom24c0x_t eeprom24c0x_t;
113 static eeprom24c0x_t eeprom = {
115 /* 00000000: */ 0x80,0x08,0x04,0x0D,0x0A,0x01,0x40,0x00,
116 /* 00000008: */ 0x01,0x75,0x54,0x00,0x82,0x08,0x00,0x01,
117 /* 00000010: */ 0x8F,0x04,0x02,0x01,0x01,0x00,0x0E,0x00,
118 /* 00000018: */ 0x00,0x00,0x00,0x14,0x0F,0x14,0x2D,0x40,
119 /* 00000020: */ 0x15,0x08,0x15,0x08,0x00,0x00,0x00,0x00,
120 /* 00000028: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
121 /* 00000030: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
122 /* 00000038: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x12,0xD0,
123 /* 00000040: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
124 /* 00000048: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
125 /* 00000050: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
126 /* 00000058: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
127 /* 00000060: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
128 /* 00000068: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
129 /* 00000070: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
130 /* 00000078: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x64,0xF4,
134 static uint8_t eeprom24c0x_read()
136 logout("%u: scl = %u, sda = %u, data = 0x%02x\n",
137 eeprom.tick, eeprom.scl, eeprom.sda, eeprom.data);
141 static void eeprom24c0x_write(int scl, int sda)
143 if (eeprom.scl && scl && (eeprom.sda != sda)) {
144 logout("%u: scl = %u->%u, sda = %u->%u i2c %s\n",
145 eeprom.tick, eeprom.scl, scl, eeprom.sda, sda, sda ? "stop" : "start");
150 } else if (eeprom.tick == 0 && !eeprom.ack) {
151 /* Waiting for start. */
152 logout("%u: scl = %u->%u, sda = %u->%u wait for i2c start\n",
153 eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
154 } else if (!eeprom.scl && scl) {
155 logout("%u: scl = %u->%u, sda = %u->%u trigger bit\n",
156 eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
158 logout("\ti2c ack bit = 0\n");
161 } else if (eeprom.sda == sda) {
162 uint8_t bit = (sda != 0);
163 logout("\ti2c bit = %d\n", bit);
164 if (eeprom.tick < 9) {
165 eeprom.command <<= 1;
166 eeprom.command += bit;
168 if (eeprom.tick == 9) {
169 logout("\tcommand 0x%04x, %s\n", eeprom.command, bit ? "read" : "write");
172 } else if (eeprom.tick < 17) {
173 if (eeprom.command & 1) {
174 sda = ((eeprom.data & 0x80) != 0);
176 eeprom.address <<= 1;
177 eeprom.address += bit;
180 if (eeprom.tick == 17) {
181 eeprom.data = eeprom.contents[eeprom.address];
182 logout("\taddress 0x%04x, data 0x%02x\n", eeprom.address, eeprom.data);
186 } else if (eeprom.tick >= 17) {
190 logout("\tsda changed with raising scl\n");
193 logout("%u: scl = %u->%u, sda = %u->%u\n", eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
199 static uint32_t malta_fpga_readl(void *opaque, target_phys_addr_t addr)
201 MaltaFPGAState *s = opaque;
205 saddr = (addr & 0xfffff);
209 /* SWITCH Register */
211 val = 0x00000000; /* All switches closed */
214 /* STATUS Register */
216 #ifdef TARGET_WORDS_BIGENDIAN
228 /* LEDBAR Register */
233 /* BRKRES Register */
238 /* UART Registers are handled directly by the serial device */
245 /* XXX: implement a real I2C controller */
249 /* IN = OUT until a real I2C control is implemented */
256 /* I2CINP Register */
258 val = ((s->i2cin & ~1) | eeprom24c0x_read());
266 /* I2COUT Register */
271 /* I2CSEL Register */
278 printf ("malta_fpga_read: Bad register offset 0x" TARGET_FMT_lx "\n",
286 static void malta_fpga_writel(void *opaque, target_phys_addr_t addr,
289 MaltaFPGAState *s = opaque;
292 saddr = (addr & 0xfffff);
296 /* SWITCH Register */
304 /* LEDBAR Register */
305 /* XXX: implement a 8-LED array */
307 s->leds = val & 0xff;
310 /* ASCIIWORD Register */
312 snprintf(s->display_text, 9, "%08X", val);
313 malta_fpga_update_display(s);
316 /* ASCIIPOS0 to ASCIIPOS7 Registers */
325 s->display_text[(saddr - 0x00418) >> 3] = (char) val;
326 malta_fpga_update_display(s);
329 /* SOFTRES Register */
332 qemu_system_reset_request ();
335 /* BRKRES Register */
340 /* UART Registers are handled directly by the serial device */
344 s->gpout = val & 0xff;
349 s->i2coe = val & 0x03;
352 /* I2COUT Register */
354 eeprom24c0x_write(val & 0x02, val & 0x01);
358 /* I2CSEL Register */
360 s->i2csel = val & 0x01;
365 printf ("malta_fpga_write: Bad register offset 0x" TARGET_FMT_lx "\n",
372 static CPUReadMemoryFunc *malta_fpga_read[] = {
378 static CPUWriteMemoryFunc *malta_fpga_write[] = {
384 void malta_fpga_reset(void *opaque)
386 MaltaFPGAState *s = opaque;
396 s->display_text[8] = '\0';
397 snprintf(s->display_text, 9, " ");
398 malta_fpga_update_display(s);
401 MaltaFPGAState *malta_fpga_init(target_phys_addr_t base, CPUState *env)
404 CharDriverState *uart_chr;
407 s = (MaltaFPGAState *)qemu_mallocz(sizeof(MaltaFPGAState));
409 malta = cpu_register_io_memory(0, malta_fpga_read,
410 malta_fpga_write, s);
412 cpu_register_physical_memory(base, 0x900, malta);
413 cpu_register_physical_memory(base + 0xa00, 0x100000 - 0xa00, malta);
415 s->display = qemu_chr_open("vc");
416 qemu_chr_printf(s->display, "\e[HMalta LEDBAR\r\n");
417 qemu_chr_printf(s->display, "+--------+\r\n");
418 qemu_chr_printf(s->display, "+ +\r\n");
419 qemu_chr_printf(s->display, "+--------+\r\n");
420 qemu_chr_printf(s->display, "\n");
421 qemu_chr_printf(s->display, "Malta ASCII\r\n");
422 qemu_chr_printf(s->display, "+--------+\r\n");
423 qemu_chr_printf(s->display, "+ +\r\n");
424 qemu_chr_printf(s->display, "+--------+\r\n");
426 uart_chr = qemu_chr_open("vc");
427 qemu_chr_printf(uart_chr, "CBUS UART\r\n");
428 s->uart = serial_mm_init(base + 0x900, 3, env->irq[2], uart_chr, 1);
431 qemu_register_reset(malta_fpga_reset, s);
438 static void audio_init (PCIBus *pci_bus)
441 int audio_enabled = 0;
443 for (c = soundhw; !audio_enabled && c->name; ++c) {
444 audio_enabled = c->enabled;
452 for (c = soundhw; c->name; ++c) {
454 c->init.init_pci (pci_bus, s);
461 /* Network support */
462 static void network_init (PCIBus *pci_bus)
467 for(i = 0; i < nb_nics; i++) {
472 if (i == 0 && strcmp(nd->model, "pcnet") == 0) {
473 /* The malta board has a PCNet card using PCI SLOT 11 */
474 pci_nic_init(pci_bus, nd, 88);
476 pci_nic_init(pci_bus, nd, -1);
481 /* ROM and pseudo bootloader
483 The following code implements a very very simple bootloader. It first
484 loads the registers a0 to a3 to the values expected by the OS, and
485 then jump at the kernel address.
487 The bootloader should pass the locations of the kernel arguments and
488 environment variables tables. Those tables contain the 32-bit address
489 of NULL terminated strings. The environment variables table should be
490 terminated by a NULL address.
492 For a simpler implementation, the number of kernel arguments is fixed
493 to two (the name of the kernel and the command line), and the two
494 tables are actually the same one.
496 The registers a0 to a3 should contain the following values:
497 a0 - number of kernel arguments
498 a1 - 32-bit address of the kernel arguments table
499 a2 - 32-bit address of the environment variables table
500 a3 - RAM size in bytes
503 static void write_bootloader (CPUState *env, unsigned long bios_offset, int64_t kernel_entry)
507 /* Small bootloader */
508 p = (uint32_t *) (phys_ram_base + bios_offset);
509 stl_raw(p++, 0x0bf00160); /* j 0x1fc00580 */
510 stl_raw(p++, 0x00000000); /* nop */
512 /* YAMON service vector */
513 stl_raw(phys_ram_base + bios_offset + 0x500, 0xbfc00580); /* start: */
514 stl_raw(phys_ram_base + bios_offset + 0x504, 0xbfc0083c); /* print_count: */
515 stl_raw(phys_ram_base + bios_offset + 0x520, 0xbfc00580); /* start: */
516 stl_raw(phys_ram_base + bios_offset + 0x52c, 0xbfc00800); /* flush_cache: */
517 stl_raw(phys_ram_base + bios_offset + 0x534, 0xbfc00808); /* print: */
518 stl_raw(phys_ram_base + bios_offset + 0x538, 0xbfc00800); /* reg_cpu_isr: */
519 stl_raw(phys_ram_base + bios_offset + 0x53c, 0xbfc00800); /* unred_cpu_isr: */
520 stl_raw(phys_ram_base + bios_offset + 0x540, 0xbfc00800); /* reg_ic_isr: */
521 stl_raw(phys_ram_base + bios_offset + 0x544, 0xbfc00800); /* unred_ic_isr: */
522 stl_raw(phys_ram_base + bios_offset + 0x548, 0xbfc00800); /* reg_esr: */
523 stl_raw(phys_ram_base + bios_offset + 0x54c, 0xbfc00800); /* unreg_esr: */
524 stl_raw(phys_ram_base + bios_offset + 0x550, 0xbfc00800); /* getchar: */
525 stl_raw(phys_ram_base + bios_offset + 0x554, 0xbfc00800); /* syscon_read: */
528 /* Second part of the bootloader */
529 p = (uint32_t *) (phys_ram_base + bios_offset + 0x580);
530 stl_raw(p++, 0x24040002); /* addiu a0, zero, 2 */
531 stl_raw(p++, 0x3c1d0000 | (((ENVP_ADDR - 64) >> 16) & 0xffff)); /* lui sp, high(ENVP_ADDR) */
532 stl_raw(p++, 0x37bd0000 | ((ENVP_ADDR - 64) & 0xffff)); /* ori sp, sp, low(ENVP_ADDR) */
533 stl_raw(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */
534 stl_raw(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a1, low(ENVP_ADDR) */
535 stl_raw(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */
536 stl_raw(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */
537 stl_raw(p++, 0x3c070000 | (env->ram_size >> 16)); /* lui a3, high(env->ram_size) */
538 stl_raw(p++, 0x34e70000 | (env->ram_size & 0xffff)); /* ori a3, a3, low(env->ram_size) */
540 /* Load BAR registers as done by YAMON */
541 stl_raw(p++, 0x3c09b400); /* lui t1, 0xb400 */
543 #ifdef TARGET_WORDS_BIGENDIAN
544 stl_raw(p++, 0x3c08df00); /* lui t0, 0xdf00 */
546 stl_raw(p++, 0x340800df); /* ori t0, r0, 0x00df */
548 stl_raw(p++, 0xad280068); /* sw t0, 0x0068(t1) */
550 stl_raw(p++, 0x3c09bbe0); /* lui t1, 0xbbe0 */
552 #ifdef TARGET_WORDS_BIGENDIAN
553 stl_raw(p++, 0x3c08c000); /* lui t0, 0xc000 */
555 stl_raw(p++, 0x340800c0); /* ori t0, r0, 0x00c0 */
557 stl_raw(p++, 0xad280048); /* sw t0, 0x0048(t1) */
558 #ifdef TARGET_WORDS_BIGENDIAN
559 stl_raw(p++, 0x3c084000); /* lui t0, 0x4000 */
561 stl_raw(p++, 0x34080040); /* ori t0, r0, 0x0040 */
563 stl_raw(p++, 0xad280050); /* sw t0, 0x0050(t1) */
565 #ifdef TARGET_WORDS_BIGENDIAN
566 stl_raw(p++, 0x3c088000); /* lui t0, 0x8000 */
568 stl_raw(p++, 0x34080080); /* ori t0, r0, 0x0080 */
570 stl_raw(p++, 0xad280058); /* sw t0, 0x0058(t1) */
571 #ifdef TARGET_WORDS_BIGENDIAN
572 stl_raw(p++, 0x3c083f00); /* lui t0, 0x3f00 */
574 stl_raw(p++, 0x3408003f); /* ori t0, r0, 0x003f */
576 stl_raw(p++, 0xad280060); /* sw t0, 0x0060(t1) */
578 #ifdef TARGET_WORDS_BIGENDIAN
579 stl_raw(p++, 0x3c08c100); /* lui t0, 0xc100 */
581 stl_raw(p++, 0x340800c1); /* ori t0, r0, 0x00c1 */
583 stl_raw(p++, 0xad280080); /* sw t0, 0x0080(t1) */
584 #ifdef TARGET_WORDS_BIGENDIAN
585 stl_raw(p++, 0x3c085e00); /* lui t0, 0x5e00 */
587 stl_raw(p++, 0x3408005e); /* ori t0, r0, 0x005e */
589 stl_raw(p++, 0xad280088); /* sw t0, 0x0088(t1) */
591 /* Jump to kernel code */
592 stl_raw(p++, 0x3c1f0000 | ((kernel_entry >> 16) & 0xffff)); /* lui ra, high(kernel_entry) */
593 stl_raw(p++, 0x37ff0000 | (kernel_entry & 0xffff)); /* ori ra, ra, low(kernel_entry) */
594 stl_raw(p++, 0x03e00008); /* jr ra */
595 stl_raw(p++, 0x00000000); /* nop */
597 /* YAMON subroutines */
598 p = (uint32_t *) (phys_ram_base + bios_offset + 0x800);
599 stl_raw(p++, 0x03e00008); /* jr ra */
600 stl_raw(p++, 0x24020000); /* li v0,0 */
601 /* 808 YAMON print */
602 stl_raw(p++, 0x03e06821); /* move t5,ra */
603 stl_raw(p++, 0x00805821); /* move t3,a0 */
604 stl_raw(p++, 0x00a05021); /* move t2,a1 */
605 stl_raw(p++, 0x91440000); /* lbu a0,0(t2) */
606 stl_raw(p++, 0x254a0001); /* addiu t2,t2,1 */
607 stl_raw(p++, 0x10800005); /* beqz a0,834 */
608 stl_raw(p++, 0x00000000); /* nop */
609 stl_raw(p++, 0x0ff0021c); /* jal 870 */
610 stl_raw(p++, 0x00000000); /* nop */
611 stl_raw(p++, 0x08000205); /* j 814 */
612 stl_raw(p++, 0x00000000); /* nop */
613 stl_raw(p++, 0x01a00008); /* jr t5 */
614 stl_raw(p++, 0x01602021); /* move a0,t3 */
615 /* 0x83c YAMON print_count */
616 stl_raw(p++, 0x03e06821); /* move t5,ra */
617 stl_raw(p++, 0x00805821); /* move t3,a0 */
618 stl_raw(p++, 0x00a05021); /* move t2,a1 */
619 stl_raw(p++, 0x00c06021); /* move t4,a2 */
620 stl_raw(p++, 0x91440000); /* lbu a0,0(t2) */
621 stl_raw(p++, 0x0ff0021c); /* jal 870 */
622 stl_raw(p++, 0x00000000); /* nop */
623 stl_raw(p++, 0x254a0001); /* addiu t2,t2,1 */
624 stl_raw(p++, 0x258cffff); /* addiu t4,t4,-1 */
625 stl_raw(p++, 0x1580fffa); /* bnez t4,84c */
626 stl_raw(p++, 0x00000000); /* nop */
627 stl_raw(p++, 0x01a00008); /* jr t5 */
628 stl_raw(p++, 0x01602021); /* move a0,t3 */
630 stl_raw(p++, 0x3c08b800); /* lui t0,0xb400 */
631 stl_raw(p++, 0x350803f8); /* ori t0,t0,0x3f8 */
632 stl_raw(p++, 0x91090005); /* lbu t1,5(t0) */
633 stl_raw(p++, 0x00000000); /* nop */
634 stl_raw(p++, 0x31290040); /* andi t1,t1,0x40 */
635 stl_raw(p++, 0x1120fffc); /* beqz t1,878 <outch+0x8> */
636 stl_raw(p++, 0x00000000); /* nop */
637 stl_raw(p++, 0x03e00008); /* jr ra */
638 stl_raw(p++, 0xa1040000); /* sb a0,0(t0) */
642 static void prom_set(int index, const char *string, ...)
649 if (index >= ENVP_NB_ENTRIES)
652 p = (int32_t *) (phys_ram_base + ENVP_ADDR + VIRT_TO_PHYS_ADDEND);
655 if (string == NULL) {
660 table_addr = ENVP_ADDR + sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE;
661 s = (char *) (phys_ram_base + VIRT_TO_PHYS_ADDEND + table_addr);
663 stl_raw(p, table_addr);
665 va_start(ap, string);
666 vsnprintf (s, ENVP_ENTRY_SIZE, string, ap);
671 static int64_t load_kernel (CPUState *env)
673 int64_t kernel_entry, kernel_low, kernel_high;
676 ram_addr_t initrd_offset;
678 if (load_elf(env->kernel_filename, VIRT_TO_PHYS_ADDEND,
679 &kernel_entry, &kernel_low, &kernel_high) < 0) {
680 fprintf(stderr, "qemu: could not load kernel '%s'\n",
681 env->kernel_filename);
688 if (env->initrd_filename) {
689 initrd_size = get_image_size (env->initrd_filename);
690 if (initrd_size > 0) {
691 initrd_offset = (kernel_high + ~TARGET_PAGE_MASK) & TARGET_PAGE_MASK;
692 if (initrd_offset + initrd_size > env->ram_size) {
694 "qemu: memory too small for initial ram disk '%s'\n",
695 env->initrd_filename);
698 initrd_size = load_image(env->initrd_filename,
699 phys_ram_base + initrd_offset);
701 if (initrd_size == (target_ulong) -1) {
702 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
703 env->initrd_filename);
708 /* Store command line. */
709 prom_set(index++, env->kernel_filename);
711 prom_set(index++, "rd_start=0x" TARGET_FMT_lx " rd_size=%li %s",
712 PHYS_TO_VIRT(initrd_offset), initrd_size,
713 env->kernel_cmdline);
715 prom_set(index++, env->kernel_cmdline);
717 /* Setup minimum environment variables */
718 prom_set(index++, "memsize");
719 prom_set(index++, "%i", env->ram_size);
720 prom_set(index++, "modetty0");
721 prom_set(index++, "38400n8r");
722 prom_set(index++, NULL);
727 static void main_cpu_reset(void *opaque)
729 CPUState *env = opaque;
731 cpu_mips_register(env, NULL);
733 /* The bootload does not need to be rewritten as it is located in a
734 read only location. The kernel location and the arguments table
735 location does not change. */
736 if (env->kernel_filename) {
737 env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
743 void mips_malta_init (int ram_size, int vga_ram_size, const char *boot_device,
744 DisplayState *ds, const char **fd_filename, int snapshot,
745 const char *kernel_filename, const char *kernel_cmdline,
746 const char *initrd_filename, const char *cpu_model)
749 unsigned long bios_offset;
750 int64_t kernel_entry;
754 /* fdctrl_t *floppy_controller; */
755 MaltaFPGAState *malta_fpga;
765 if (cpu_model == NULL) {
772 if (mips_find_by_name(cpu_model, &def) != 0)
775 cpu_mips_register(env, def);
776 register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
777 qemu_register_reset(main_cpu_reset, env);
780 cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
782 /* Map the bios at two physical locations, as on the real board */
783 bios_offset = ram_size + vga_ram_size;
784 cpu_register_physical_memory(0x1e000000LL,
785 BIOS_SIZE, bios_offset | IO_MEM_ROM);
786 cpu_register_physical_memory(0x1fc00000LL,
787 BIOS_SIZE, bios_offset | IO_MEM_ROM);
790 malta_fpga = malta_fpga_init(0x1f000000LL, env);
792 /* Load a BIOS image unless a kernel image has been specified. */
793 if (!kernel_filename) {
794 if (bios_name == NULL)
795 bios_name = BIOS_FILENAME;
796 snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
797 ret = load_image(buf, phys_ram_base + bios_offset);
798 if (ret < 0 || ret > BIOS_SIZE) {
800 "qemu: Could not load MIPS bios '%s', and no -kernel argument was specified\n",
804 /* In little endian mode the 32bit words in the bios are swapped,
805 a neat trick which allows bi-endian firmware. */
806 #ifndef TARGET_WORDS_BIGENDIAN
809 for (addr = (uint32_t *)(phys_ram_base + bios_offset);
810 addr < (uint32_t *)(phys_ram_base + bios_offset + ret);
812 *addr = bswap32(*addr);
818 /* If a kernel image has been specified, write a small bootloader
819 to the flash location. */
820 if (kernel_filename) {
821 env->ram_size = ram_size;
822 env->kernel_filename = kernel_filename;
823 env->kernel_cmdline = kernel_cmdline;
824 env->initrd_filename = initrd_filename;
825 kernel_entry = load_kernel(env);
826 env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
827 write_bootloader(env, bios_offset, kernel_entry);
830 /* Board ID = 0x420 (Malta Board with CoreLV)
831 XXX: theoretically 0x1e000010 should map to flash and 0x1fc00010 should
832 map to the board ID. */
833 stl_raw(phys_ram_base + bios_offset + 0x10, 0x00000420);
835 /* Init internal devices */
836 cpu_mips_irq_init_cpu(env);
837 cpu_mips_clock_init(env);
838 cpu_mips_irqctrl_init();
840 /* Interrupt controller */
841 /* The 8259 is attached to the MIPS CPU INT0 pin, ie interrupt 2 */
842 i8259 = i8259_init(env->irq[2]);
845 pci_bus = pci_gt64120_init(i8259);
848 piix4_devfn = piix4_init(pci_bus, 80);
849 pci_piix4_ide_init(pci_bus, bs_table, piix4_devfn + 1, i8259);
850 usb_uhci_piix4_init(pci_bus, piix4_devfn + 2);
851 smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100);
852 eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
853 for (i = 0; i < 8; i++) {
854 /* TODO: Populate SPD eeprom data. */
855 smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i * 256));
857 pit = pit_init(0x40, i8259[0]);
861 i8042_init(i8259[1], i8259[12], 0x60);
862 rtc_state = rtc_init(0x70, i8259[8]);
864 serial_init(0x3f8, i8259[4], serial_hds[0]);
866 serial_init(0x2f8, i8259[3], serial_hds[1]);
868 parallel_init(0x378, i8259[7], parallel_hds[0]);
869 /* XXX: The floppy controller does not work correctly, something is
871 floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd_table); */
879 network_init(pci_bus);
881 /* Optional PCI video card */
882 pci_cirrus_vga_init(pci_bus, ds, phys_ram_base + ram_size,
883 ram_size, vga_ram_size);
886 QEMUMachine mips_malta_machine = {
888 "MIPS Malta Core LV",