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
34 #include "mips_cpudevs.h"
37 #include "vmware_vga.h"
38 #include "qemu-char.h"
40 #include "audio/audio.h"
43 #include "mips-bios.h"
47 #include "mc146818rtc.h"
49 //#define DEBUG_BOARD_INIT
51 #define ENVP_ADDR 0x80002000l
52 #define ENVP_NB_ENTRIES 16
53 #define ENVP_ENTRY_SIZE 256
65 CharDriverState *display;
72 static struct _loaderparams {
74 const char *kernel_filename;
75 const char *kernel_cmdline;
76 const char *initrd_filename;
80 static void malta_fpga_update_display(void *opaque)
84 MaltaFPGAState *s = opaque;
86 for (i = 7 ; i >= 0 ; i--) {
87 if (s->leds & (1 << i))
94 qemu_chr_printf(s->display, "\e[H\n\n|\e[32m%-8.8s\e[00m|\r\n", leds_text);
95 qemu_chr_printf(s->display, "\n\n\n\n|\e[31m%-8.8s\e[00m|", s->display_text);
99 * EEPROM 24C01 / 24C02 emulation.
101 * Emulation for serial EEPROMs:
102 * 24C01 - 1024 bit (128 x 8)
103 * 24C02 - 2048 bit (256 x 8)
105 * Typical device names include Microchip 24C02SC or SGS Thomson ST24C02.
111 # define logout(fmt, ...) fprintf(stderr, "MALTA\t%-24s" fmt, __func__, ## __VA_ARGS__)
113 # define logout(fmt, ...) ((void)0)
116 struct _eeprom24c0x_t {
125 uint8_t contents[256];
128 typedef struct _eeprom24c0x_t eeprom24c0x_t;
130 static eeprom24c0x_t eeprom = {
132 /* 00000000: */ 0x80,0x08,0x04,0x0D,0x0A,0x01,0x40,0x00,
133 /* 00000008: */ 0x01,0x75,0x54,0x00,0x82,0x08,0x00,0x01,
134 /* 00000010: */ 0x8F,0x04,0x02,0x01,0x01,0x00,0x0E,0x00,
135 /* 00000018: */ 0x00,0x00,0x00,0x14,0x0F,0x14,0x2D,0x40,
136 /* 00000020: */ 0x15,0x08,0x15,0x08,0x00,0x00,0x00,0x00,
137 /* 00000028: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
138 /* 00000030: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
139 /* 00000038: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x12,0xD0,
140 /* 00000040: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
141 /* 00000048: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
142 /* 00000050: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
143 /* 00000058: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
144 /* 00000060: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
145 /* 00000068: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
146 /* 00000070: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
147 /* 00000078: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x64,0xF4,
151 static uint8_t eeprom24c0x_read(void)
153 logout("%u: scl = %u, sda = %u, data = 0x%02x\n",
154 eeprom.tick, eeprom.scl, eeprom.sda, eeprom.data);
158 static void eeprom24c0x_write(int scl, int sda)
160 if (eeprom.scl && scl && (eeprom.sda != sda)) {
161 logout("%u: scl = %u->%u, sda = %u->%u i2c %s\n",
162 eeprom.tick, eeprom.scl, scl, eeprom.sda, sda, sda ? "stop" : "start");
167 } else if (eeprom.tick == 0 && !eeprom.ack) {
168 /* Waiting for start. */
169 logout("%u: scl = %u->%u, sda = %u->%u wait for i2c start\n",
170 eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
171 } else if (!eeprom.scl && scl) {
172 logout("%u: scl = %u->%u, sda = %u->%u trigger bit\n",
173 eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
175 logout("\ti2c ack bit = 0\n");
178 } else if (eeprom.sda == sda) {
179 uint8_t bit = (sda != 0);
180 logout("\ti2c bit = %d\n", bit);
181 if (eeprom.tick < 9) {
182 eeprom.command <<= 1;
183 eeprom.command += bit;
185 if (eeprom.tick == 9) {
186 logout("\tcommand 0x%04x, %s\n", eeprom.command, bit ? "read" : "write");
189 } else if (eeprom.tick < 17) {
190 if (eeprom.command & 1) {
191 sda = ((eeprom.data & 0x80) != 0);
193 eeprom.address <<= 1;
194 eeprom.address += bit;
197 if (eeprom.tick == 17) {
198 eeprom.data = eeprom.contents[eeprom.address];
199 logout("\taddress 0x%04x, data 0x%02x\n", eeprom.address, eeprom.data);
203 } else if (eeprom.tick >= 17) {
207 logout("\tsda changed with raising scl\n");
210 logout("%u: scl = %u->%u, sda = %u->%u\n", eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
216 static uint32_t malta_fpga_readl(void *opaque, target_phys_addr_t addr)
218 MaltaFPGAState *s = opaque;
222 saddr = (addr & 0xfffff);
226 /* SWITCH Register */
228 val = 0x00000000; /* All switches closed */
231 /* STATUS Register */
233 #ifdef TARGET_WORDS_BIGENDIAN
245 /* LEDBAR Register */
250 /* BRKRES Register */
255 /* UART Registers are handled directly by the serial device */
262 /* XXX: implement a real I2C controller */
266 /* IN = OUT until a real I2C control is implemented */
273 /* I2CINP Register */
275 val = ((s->i2cin & ~1) | eeprom24c0x_read());
283 /* I2COUT Register */
288 /* I2CSEL Register */
295 printf ("malta_fpga_read: Bad register offset 0x" TARGET_FMT_lx "\n",
303 static void malta_fpga_writel(void *opaque, target_phys_addr_t addr,
306 MaltaFPGAState *s = opaque;
309 saddr = (addr & 0xfffff);
313 /* SWITCH Register */
321 /* LEDBAR Register */
322 /* XXX: implement a 8-LED array */
324 s->leds = val & 0xff;
327 /* ASCIIWORD Register */
329 snprintf(s->display_text, 9, "%08X", val);
330 malta_fpga_update_display(s);
333 /* ASCIIPOS0 to ASCIIPOS7 Registers */
342 s->display_text[(saddr - 0x00418) >> 3] = (char) val;
343 malta_fpga_update_display(s);
346 /* SOFTRES Register */
349 qemu_system_reset_request ();
352 /* BRKRES Register */
357 /* UART Registers are handled directly by the serial device */
361 s->gpout = val & 0xff;
366 s->i2coe = val & 0x03;
369 /* I2COUT Register */
371 eeprom24c0x_write(val & 0x02, val & 0x01);
375 /* I2CSEL Register */
377 s->i2csel = val & 0x01;
382 printf ("malta_fpga_write: Bad register offset 0x" TARGET_FMT_lx "\n",
389 static CPUReadMemoryFunc * const malta_fpga_read[] = {
395 static CPUWriteMemoryFunc * const malta_fpga_write[] = {
401 static void malta_fpga_reset(void *opaque)
403 MaltaFPGAState *s = opaque;
413 s->display_text[8] = '\0';
414 snprintf(s->display_text, 9, " ");
417 static void malta_fpga_led_init(CharDriverState *chr)
419 qemu_chr_printf(chr, "\e[HMalta LEDBAR\r\n");
420 qemu_chr_printf(chr, "+--------+\r\n");
421 qemu_chr_printf(chr, "+ +\r\n");
422 qemu_chr_printf(chr, "+--------+\r\n");
423 qemu_chr_printf(chr, "\n");
424 qemu_chr_printf(chr, "Malta ASCII\r\n");
425 qemu_chr_printf(chr, "+--------+\r\n");
426 qemu_chr_printf(chr, "+ +\r\n");
427 qemu_chr_printf(chr, "+--------+\r\n");
430 static MaltaFPGAState *malta_fpga_init(target_phys_addr_t base, qemu_irq uart_irq, CharDriverState *uart_chr)
435 s = (MaltaFPGAState *)qemu_mallocz(sizeof(MaltaFPGAState));
437 malta = cpu_register_io_memory(malta_fpga_read,
438 malta_fpga_write, s);
440 cpu_register_physical_memory(base, 0x900, malta);
441 /* 0xa00 is less than a page, so will still get the right offsets. */
442 cpu_register_physical_memory(base + 0xa00, 0x100000 - 0xa00, malta);
444 s->display = qemu_chr_open("fpga", "vc:320x200", malta_fpga_led_init);
446 #ifdef TARGET_WORDS_BIGENDIAN
447 s->uart = serial_mm_init(base + 0x900, 3, uart_irq, 230400, uart_chr, 1, 1);
449 s->uart = serial_mm_init(base + 0x900, 3, uart_irq, 230400, uart_chr, 1, 0);
453 qemu_register_reset(malta_fpga_reset, s);
460 static void audio_init (PCIBus *pci_bus)
463 int audio_enabled = 0;
465 for (c = soundhw; !audio_enabled && c->name; ++c) {
466 audio_enabled = c->enabled;
470 for (c = soundhw; c->name; ++c) {
472 c->init.init_pci(pci_bus);
479 /* Network support */
480 static void network_init(void)
484 for(i = 0; i < nb_nics; i++) {
485 NICInfo *nd = &nd_table[i];
486 const char *default_devaddr = NULL;
488 if (i == 0 && (!nd->model || strcmp(nd->model, "pcnet") == 0))
489 /* The malta board has a PCNet card using PCI SLOT 11 */
490 default_devaddr = "0b";
492 pci_nic_init_nofail(nd, "pcnet", default_devaddr);
496 /* ROM and pseudo bootloader
498 The following code implements a very very simple bootloader. It first
499 loads the registers a0 to a3 to the values expected by the OS, and
500 then jump at the kernel address.
502 The bootloader should pass the locations of the kernel arguments and
503 environment variables tables. Those tables contain the 32-bit address
504 of NULL terminated strings. The environment variables table should be
505 terminated by a NULL address.
507 For a simpler implementation, the number of kernel arguments is fixed
508 to two (the name of the kernel and the command line), and the two
509 tables are actually the same one.
511 The registers a0 to a3 should contain the following values:
512 a0 - number of kernel arguments
513 a1 - 32-bit address of the kernel arguments table
514 a2 - 32-bit address of the environment variables table
515 a3 - RAM size in bytes
518 static void write_bootloader (CPUState *env, uint8_t *base,
519 int64_t kernel_entry)
523 /* Small bootloader */
524 p = (uint32_t *)base;
525 stl_raw(p++, 0x0bf00160); /* j 0x1fc00580 */
526 stl_raw(p++, 0x00000000); /* nop */
528 /* YAMON service vector */
529 stl_raw(base + 0x500, 0xbfc00580); /* start: */
530 stl_raw(base + 0x504, 0xbfc0083c); /* print_count: */
531 stl_raw(base + 0x520, 0xbfc00580); /* start: */
532 stl_raw(base + 0x52c, 0xbfc00800); /* flush_cache: */
533 stl_raw(base + 0x534, 0xbfc00808); /* print: */
534 stl_raw(base + 0x538, 0xbfc00800); /* reg_cpu_isr: */
535 stl_raw(base + 0x53c, 0xbfc00800); /* unred_cpu_isr: */
536 stl_raw(base + 0x540, 0xbfc00800); /* reg_ic_isr: */
537 stl_raw(base + 0x544, 0xbfc00800); /* unred_ic_isr: */
538 stl_raw(base + 0x548, 0xbfc00800); /* reg_esr: */
539 stl_raw(base + 0x54c, 0xbfc00800); /* unreg_esr: */
540 stl_raw(base + 0x550, 0xbfc00800); /* getchar: */
541 stl_raw(base + 0x554, 0xbfc00800); /* syscon_read: */
544 /* Second part of the bootloader */
545 p = (uint32_t *) (base + 0x580);
546 stl_raw(p++, 0x24040002); /* addiu a0, zero, 2 */
547 stl_raw(p++, 0x3c1d0000 | (((ENVP_ADDR - 64) >> 16) & 0xffff)); /* lui sp, high(ENVP_ADDR) */
548 stl_raw(p++, 0x37bd0000 | ((ENVP_ADDR - 64) & 0xffff)); /* ori sp, sp, low(ENVP_ADDR) */
549 stl_raw(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */
550 stl_raw(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a1, low(ENVP_ADDR) */
551 stl_raw(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */
552 stl_raw(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */
553 stl_raw(p++, 0x3c070000 | (loaderparams.ram_size >> 16)); /* lui a3, high(ram_size) */
554 stl_raw(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff)); /* ori a3, a3, low(ram_size) */
556 /* Load BAR registers as done by YAMON */
557 stl_raw(p++, 0x3c09b400); /* lui t1, 0xb400 */
559 #ifdef TARGET_WORDS_BIGENDIAN
560 stl_raw(p++, 0x3c08df00); /* lui t0, 0xdf00 */
562 stl_raw(p++, 0x340800df); /* ori t0, r0, 0x00df */
564 stl_raw(p++, 0xad280068); /* sw t0, 0x0068(t1) */
566 stl_raw(p++, 0x3c09bbe0); /* lui t1, 0xbbe0 */
568 #ifdef TARGET_WORDS_BIGENDIAN
569 stl_raw(p++, 0x3c08c000); /* lui t0, 0xc000 */
571 stl_raw(p++, 0x340800c0); /* ori t0, r0, 0x00c0 */
573 stl_raw(p++, 0xad280048); /* sw t0, 0x0048(t1) */
574 #ifdef TARGET_WORDS_BIGENDIAN
575 stl_raw(p++, 0x3c084000); /* lui t0, 0x4000 */
577 stl_raw(p++, 0x34080040); /* ori t0, r0, 0x0040 */
579 stl_raw(p++, 0xad280050); /* sw t0, 0x0050(t1) */
581 #ifdef TARGET_WORDS_BIGENDIAN
582 stl_raw(p++, 0x3c088000); /* lui t0, 0x8000 */
584 stl_raw(p++, 0x34080080); /* ori t0, r0, 0x0080 */
586 stl_raw(p++, 0xad280058); /* sw t0, 0x0058(t1) */
587 #ifdef TARGET_WORDS_BIGENDIAN
588 stl_raw(p++, 0x3c083f00); /* lui t0, 0x3f00 */
590 stl_raw(p++, 0x3408003f); /* ori t0, r0, 0x003f */
592 stl_raw(p++, 0xad280060); /* sw t0, 0x0060(t1) */
594 #ifdef TARGET_WORDS_BIGENDIAN
595 stl_raw(p++, 0x3c08c100); /* lui t0, 0xc100 */
597 stl_raw(p++, 0x340800c1); /* ori t0, r0, 0x00c1 */
599 stl_raw(p++, 0xad280080); /* sw t0, 0x0080(t1) */
600 #ifdef TARGET_WORDS_BIGENDIAN
601 stl_raw(p++, 0x3c085e00); /* lui t0, 0x5e00 */
603 stl_raw(p++, 0x3408005e); /* ori t0, r0, 0x005e */
605 stl_raw(p++, 0xad280088); /* sw t0, 0x0088(t1) */
607 /* Jump to kernel code */
608 stl_raw(p++, 0x3c1f0000 | ((kernel_entry >> 16) & 0xffff)); /* lui ra, high(kernel_entry) */
609 stl_raw(p++, 0x37ff0000 | (kernel_entry & 0xffff)); /* ori ra, ra, low(kernel_entry) */
610 stl_raw(p++, 0x03e00008); /* jr ra */
611 stl_raw(p++, 0x00000000); /* nop */
613 /* YAMON subroutines */
614 p = (uint32_t *) (base + 0x800);
615 stl_raw(p++, 0x03e00008); /* jr ra */
616 stl_raw(p++, 0x24020000); /* li v0,0 */
617 /* 808 YAMON print */
618 stl_raw(p++, 0x03e06821); /* move t5,ra */
619 stl_raw(p++, 0x00805821); /* move t3,a0 */
620 stl_raw(p++, 0x00a05021); /* move t2,a1 */
621 stl_raw(p++, 0x91440000); /* lbu a0,0(t2) */
622 stl_raw(p++, 0x254a0001); /* addiu t2,t2,1 */
623 stl_raw(p++, 0x10800005); /* beqz a0,834 */
624 stl_raw(p++, 0x00000000); /* nop */
625 stl_raw(p++, 0x0ff0021c); /* jal 870 */
626 stl_raw(p++, 0x00000000); /* nop */
627 stl_raw(p++, 0x08000205); /* j 814 */
628 stl_raw(p++, 0x00000000); /* nop */
629 stl_raw(p++, 0x01a00008); /* jr t5 */
630 stl_raw(p++, 0x01602021); /* move a0,t3 */
631 /* 0x83c YAMON print_count */
632 stl_raw(p++, 0x03e06821); /* move t5,ra */
633 stl_raw(p++, 0x00805821); /* move t3,a0 */
634 stl_raw(p++, 0x00a05021); /* move t2,a1 */
635 stl_raw(p++, 0x00c06021); /* move t4,a2 */
636 stl_raw(p++, 0x91440000); /* lbu a0,0(t2) */
637 stl_raw(p++, 0x0ff0021c); /* jal 870 */
638 stl_raw(p++, 0x00000000); /* nop */
639 stl_raw(p++, 0x254a0001); /* addiu t2,t2,1 */
640 stl_raw(p++, 0x258cffff); /* addiu t4,t4,-1 */
641 stl_raw(p++, 0x1580fffa); /* bnez t4,84c */
642 stl_raw(p++, 0x00000000); /* nop */
643 stl_raw(p++, 0x01a00008); /* jr t5 */
644 stl_raw(p++, 0x01602021); /* move a0,t3 */
646 stl_raw(p++, 0x3c08b800); /* lui t0,0xb400 */
647 stl_raw(p++, 0x350803f8); /* ori t0,t0,0x3f8 */
648 stl_raw(p++, 0x91090005); /* lbu t1,5(t0) */
649 stl_raw(p++, 0x00000000); /* nop */
650 stl_raw(p++, 0x31290040); /* andi t1,t1,0x40 */
651 stl_raw(p++, 0x1120fffc); /* beqz t1,878 <outch+0x8> */
652 stl_raw(p++, 0x00000000); /* nop */
653 stl_raw(p++, 0x03e00008); /* jr ra */
654 stl_raw(p++, 0xa1040000); /* sb a0,0(t0) */
658 static void prom_set(uint32_t* prom_buf, int index, const char *string, ...)
663 if (index >= ENVP_NB_ENTRIES)
666 if (string == NULL) {
671 table_addr = sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE;
672 prom_buf[index] = tswap32(ENVP_ADDR + table_addr);
674 va_start(ap, string);
675 vsnprintf((char *)prom_buf + table_addr, ENVP_ENTRY_SIZE, string, ap);
680 static int64_t load_kernel (void)
682 int64_t kernel_entry, kernel_high;
684 ram_addr_t initrd_offset;
690 #ifdef TARGET_WORDS_BIGENDIAN
696 if (load_elf(loaderparams.kernel_filename, cpu_mips_kseg0_to_phys, NULL,
697 (uint64_t *)&kernel_entry, NULL, (uint64_t *)&kernel_high,
698 big_endian, ELF_MACHINE, 1) < 0) {
699 fprintf(stderr, "qemu: could not load kernel '%s'\n",
700 loaderparams.kernel_filename);
707 if (loaderparams.initrd_filename) {
708 initrd_size = get_image_size (loaderparams.initrd_filename);
709 if (initrd_size > 0) {
710 initrd_offset = (kernel_high + ~TARGET_PAGE_MASK) & TARGET_PAGE_MASK;
711 if (initrd_offset + initrd_size > ram_size) {
713 "qemu: memory too small for initial ram disk '%s'\n",
714 loaderparams.initrd_filename);
717 initrd_size = load_image_targphys(loaderparams.initrd_filename,
719 ram_size - initrd_offset);
721 if (initrd_size == (target_ulong) -1) {
722 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
723 loaderparams.initrd_filename);
728 /* Setup prom parameters. */
729 prom_size = ENVP_NB_ENTRIES * (sizeof(int32_t) + ENVP_ENTRY_SIZE);
730 prom_buf = qemu_malloc(prom_size);
732 prom_set(prom_buf, prom_index++, loaderparams.kernel_filename);
733 if (initrd_size > 0) {
734 prom_set(prom_buf, prom_index++, "rd_start=0x%" PRIx64 " rd_size=%li %s",
735 cpu_mips_phys_to_kseg0(NULL, initrd_offset), initrd_size,
736 loaderparams.kernel_cmdline);
738 prom_set(prom_buf, prom_index++, loaderparams.kernel_cmdline);
741 prom_set(prom_buf, prom_index++, "memsize");
742 prom_set(prom_buf, prom_index++, "%i", loaderparams.ram_size);
743 prom_set(prom_buf, prom_index++, "modetty0");
744 prom_set(prom_buf, prom_index++, "38400n8r");
745 prom_set(prom_buf, prom_index++, NULL);
747 rom_add_blob_fixed("prom", prom_buf, prom_size,
748 cpu_mips_kseg0_to_phys(NULL, ENVP_ADDR));
753 static void main_cpu_reset(void *opaque)
755 CPUState *env = opaque;
758 /* The bootloader does not need to be rewritten as it is located in a
759 read only location. The kernel location and the arguments table
760 location does not change. */
761 if (loaderparams.kernel_filename) {
762 env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
767 void mips_malta_init (ram_addr_t ram_size,
768 const char *boot_device,
769 const char *kernel_filename, const char *kernel_cmdline,
770 const char *initrd_filename, const char *cpu_model)
773 ram_addr_t ram_offset;
774 ram_addr_t bios_offset;
775 target_long bios_size;
776 int64_t kernel_entry;
780 ISADevice *rtc_state;
781 FDCtrl *floppy_controller;
782 MaltaFPGAState *malta_fpga;
789 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
790 DriveInfo *fd[MAX_FD];
795 /* Make sure the first 3 serial ports are associated with a device. */
796 for(i = 0; i < 3; i++) {
797 if (!serial_hds[i]) {
799 snprintf(label, sizeof(label), "serial%d", i);
800 serial_hds[i] = qemu_chr_open(label, "null", NULL);
805 if (cpu_model == NULL) {
812 env = cpu_init(cpu_model);
814 fprintf(stderr, "Unable to find CPU definition\n");
817 qemu_register_reset(main_cpu_reset, env);
820 if (ram_size > (256 << 20)) {
822 "qemu: Too much memory for this machine: %d MB, maximum 256 MB\n",
823 ((unsigned int)ram_size / (1 << 20)));
826 ram_offset = qemu_ram_alloc(ram_size);
827 bios_offset = qemu_ram_alloc(BIOS_SIZE);
830 cpu_register_physical_memory(0, ram_size, ram_offset | IO_MEM_RAM);
832 /* Map the bios at two physical locations, as on the real board. */
833 cpu_register_physical_memory(0x1e000000LL,
834 BIOS_SIZE, bios_offset | IO_MEM_ROM);
835 cpu_register_physical_memory(0x1fc00000LL,
836 BIOS_SIZE, bios_offset | IO_MEM_ROM);
838 #ifdef TARGET_WORDS_BIGENDIAN
844 malta_fpga = malta_fpga_init(0x1f000000LL, env->irq[2], serial_hds[2]);
846 /* Load firmware in flash / BIOS unless we boot directly into a kernel. */
847 if (kernel_filename) {
848 /* Write a small bootloader to the flash location. */
849 loaderparams.ram_size = ram_size;
850 loaderparams.kernel_filename = kernel_filename;
851 loaderparams.kernel_cmdline = kernel_cmdline;
852 loaderparams.initrd_filename = initrd_filename;
853 kernel_entry = load_kernel();
854 write_bootloader(env, qemu_get_ram_ptr(bios_offset), kernel_entry);
856 dinfo = drive_get(IF_PFLASH, 0, fl_idx);
858 /* Load firmware from flash. */
859 bios_size = 0x400000;
860 fl_sectors = bios_size >> 16;
861 #ifdef DEBUG_BOARD_INIT
862 printf("Register parallel flash %d size " TARGET_FMT_lx " at "
863 "offset %08lx addr %08llx '%s' %x\n",
864 fl_idx, bios_size, bios_offset, 0x1e000000LL,
865 bdrv_get_device_name(dinfo->bdrv), fl_sectors);
867 pflash_cfi01_register(0x1e000000LL, bios_offset,
868 dinfo->bdrv, 65536, fl_sectors,
869 4, 0x0000, 0x0000, 0x0000, 0x0000, be);
872 /* Load a BIOS image. */
873 if (bios_name == NULL)
874 bios_name = BIOS_FILENAME;
875 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
877 bios_size = load_image_targphys(filename, 0x1fc00000LL,
883 if ((bios_size < 0 || bios_size > BIOS_SIZE) && !kernel_filename) {
885 "qemu: Could not load MIPS bios '%s', and no -kernel argument was specified\n",
890 /* In little endian mode the 32bit words in the bios are swapped,
891 a neat trick which allows bi-endian firmware. */
892 #ifndef TARGET_WORDS_BIGENDIAN
894 uint32_t *addr = qemu_get_ram_ptr(bios_offset);;
895 uint32_t *end = addr + bios_size;
903 /* Board ID = 0x420 (Malta Board with CoreLV)
904 XXX: theoretically 0x1e000010 should map to flash and 0x1fc00010 should
905 map to the board ID. */
906 stl_phys(0x1fc00010LL, 0x00000420);
908 /* Init internal devices */
909 cpu_mips_irq_init_cpu(env);
910 cpu_mips_clock_init(env);
912 /* Interrupt controller */
913 /* The 8259 is attached to the MIPS CPU INT0 pin, ie interrupt 2 */
914 i8259 = i8259_init(env->irq[2]);
917 pci_bus = pci_gt64120_init(i8259);
921 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
922 fprintf(stderr, "qemu: too many IDE bus\n");
926 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
927 hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
930 piix4_devfn = piix4_init(pci_bus, 80);
932 pci_piix4_ide_init(pci_bus, hd, piix4_devfn + 1);
933 usb_uhci_piix4_init(pci_bus, piix4_devfn + 2);
934 smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100, isa_reserve_irq(9),
936 eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
937 for (i = 0; i < 8; i++) {
938 /* TODO: Populate SPD eeprom data. */
940 eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
941 qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
942 qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
943 qdev_init_nofail(eeprom);
945 pit = pit_init(0x40, isa_reserve_irq(0));
949 isa_dev = isa_create_simple("i8042");
951 rtc_state = rtc_init(2000);
952 serial_isa_init(0, serial_hds[0]);
953 serial_isa_init(1, serial_hds[1]);
955 parallel_init(0, parallel_hds[0]);
956 for(i = 0; i < MAX_FD; i++) {
957 fd[i] = drive_get(IF_FLOPPY, 0, i);
959 floppy_controller = fdctrl_init_isa(fd);
969 /* Optional PCI video card */
970 if (cirrus_vga_enabled) {
971 pci_cirrus_vga_init(pci_bus);
972 } else if (vmsvga_enabled) {
973 pci_vmsvga_init(pci_bus);
974 } else if (std_vga_enabled) {
975 pci_vga_init(pci_bus, 0, 0);
979 static QEMUMachine mips_malta_machine = {
981 .desc = "MIPS Malta Core LV",
982 .init = mips_malta_init,
986 static void mips_malta_machine_init(void)
988 qemu_register_machine(&mips_malta_machine);
991 machine_init(mips_malta_machine_init);