/* Small bootloader */
p = (uint32_t *)base;
- stl_raw(p++, 0x0bf00160); /* j 0x1fc00580 */
- stl_raw(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x0bf00160); /* j 0x1fc00580 */
+ stl_p(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: */
+ stl_p(base + 0x500, 0xbfc00580); /* start: */
+ stl_p(base + 0x504, 0xbfc0083c); /* print_count: */
+ stl_p(base + 0x520, 0xbfc00580); /* start: */
+ stl_p(base + 0x52c, 0xbfc00800); /* flush_cache: */
+ stl_p(base + 0x534, 0xbfc00808); /* print: */
+ stl_p(base + 0x538, 0xbfc00800); /* reg_cpu_isr: */
+ stl_p(base + 0x53c, 0xbfc00800); /* unred_cpu_isr: */
+ stl_p(base + 0x540, 0xbfc00800); /* reg_ic_isr: */
+ stl_p(base + 0x544, 0xbfc00800); /* unred_ic_isr: */
+ stl_p(base + 0x548, 0xbfc00800); /* reg_esr: */
+ stl_p(base + 0x54c, 0xbfc00800); /* unreg_esr: */
+ stl_p(base + 0x550, 0xbfc00800); /* getchar: */
+ stl_p(base + 0x554, 0xbfc00800); /* syscon_read: */
/* Second part of the bootloader */
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, 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 | (loaderparams.ram_size >> 16)); /* lui a3, high(ram_size) */
- stl_raw(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff)); /* ori a3, a3, low(ram_size) */
+ stl_p(p++, 0x24040002); /* addiu a0, zero, 2 */
+ stl_p(p++, 0x3c1d0000 | (((ENVP_ADDR - 64) >> 16) & 0xffff)); /* lui sp, high(ENVP_ADDR) */
+ stl_p(p++, 0x37bd0000 | ((ENVP_ADDR - 64) & 0xffff)); /* ori sp, sp, low(ENVP_ADDR) */
+ stl_p(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */
+ stl_p(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a1, low(ENVP_ADDR) */
+ stl_p(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */
+ stl_p(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */
+ stl_p(p++, 0x3c070000 | (loaderparams.ram_size >> 16)); /* lui a3, high(ram_size) */
+ stl_p(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 */
+ stl_p(p++, 0x3c09b400); /* lui t1, 0xb400 */
#ifdef TARGET_WORDS_BIGENDIAN
- stl_raw(p++, 0x3c08df00); /* lui t0, 0xdf00 */
+ stl_p(p++, 0x3c08df00); /* lui t0, 0xdf00 */
#else
- stl_raw(p++, 0x340800df); /* ori t0, r0, 0x00df */
+ stl_p(p++, 0x340800df); /* ori t0, r0, 0x00df */
#endif
- stl_raw(p++, 0xad280068); /* sw t0, 0x0068(t1) */
+ stl_p(p++, 0xad280068); /* sw t0, 0x0068(t1) */
- stl_raw(p++, 0x3c09bbe0); /* lui t1, 0xbbe0 */
+ stl_p(p++, 0x3c09bbe0); /* lui t1, 0xbbe0 */
#ifdef TARGET_WORDS_BIGENDIAN
- stl_raw(p++, 0x3c08c000); /* lui t0, 0xc000 */
+ stl_p(p++, 0x3c08c000); /* lui t0, 0xc000 */
#else
- stl_raw(p++, 0x340800c0); /* ori t0, r0, 0x00c0 */
+ stl_p(p++, 0x340800c0); /* ori t0, r0, 0x00c0 */
#endif
- stl_raw(p++, 0xad280048); /* sw t0, 0x0048(t1) */
+ stl_p(p++, 0xad280048); /* sw t0, 0x0048(t1) */
#ifdef TARGET_WORDS_BIGENDIAN
- stl_raw(p++, 0x3c084000); /* lui t0, 0x4000 */
+ stl_p(p++, 0x3c084000); /* lui t0, 0x4000 */
#else
- stl_raw(p++, 0x34080040); /* ori t0, r0, 0x0040 */
+ stl_p(p++, 0x34080040); /* ori t0, r0, 0x0040 */
#endif
- stl_raw(p++, 0xad280050); /* sw t0, 0x0050(t1) */
+ stl_p(p++, 0xad280050); /* sw t0, 0x0050(t1) */
#ifdef TARGET_WORDS_BIGENDIAN
- stl_raw(p++, 0x3c088000); /* lui t0, 0x8000 */
+ stl_p(p++, 0x3c088000); /* lui t0, 0x8000 */
#else
- stl_raw(p++, 0x34080080); /* ori t0, r0, 0x0080 */
+ stl_p(p++, 0x34080080); /* ori t0, r0, 0x0080 */
#endif
- stl_raw(p++, 0xad280058); /* sw t0, 0x0058(t1) */
+ stl_p(p++, 0xad280058); /* sw t0, 0x0058(t1) */
#ifdef TARGET_WORDS_BIGENDIAN
- stl_raw(p++, 0x3c083f00); /* lui t0, 0x3f00 */
+ stl_p(p++, 0x3c083f00); /* lui t0, 0x3f00 */
#else
- stl_raw(p++, 0x3408003f); /* ori t0, r0, 0x003f */
+ stl_p(p++, 0x3408003f); /* ori t0, r0, 0x003f */
#endif
- stl_raw(p++, 0xad280060); /* sw t0, 0x0060(t1) */
+ stl_p(p++, 0xad280060); /* sw t0, 0x0060(t1) */
#ifdef TARGET_WORDS_BIGENDIAN
- stl_raw(p++, 0x3c08c100); /* lui t0, 0xc100 */
+ stl_p(p++, 0x3c08c100); /* lui t0, 0xc100 */
#else
- stl_raw(p++, 0x340800c1); /* ori t0, r0, 0x00c1 */
+ stl_p(p++, 0x340800c1); /* ori t0, r0, 0x00c1 */
#endif
- stl_raw(p++, 0xad280080); /* sw t0, 0x0080(t1) */
+ stl_p(p++, 0xad280080); /* sw t0, 0x0080(t1) */
#ifdef TARGET_WORDS_BIGENDIAN
- stl_raw(p++, 0x3c085e00); /* lui t0, 0x5e00 */
+ stl_p(p++, 0x3c085e00); /* lui t0, 0x5e00 */
#else
- stl_raw(p++, 0x3408005e); /* ori t0, r0, 0x005e */
+ stl_p(p++, 0x3408005e); /* ori t0, r0, 0x005e */
#endif
- stl_raw(p++, 0xad280088); /* sw t0, 0x0088(t1) */
+ stl_p(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 */
+ stl_p(p++, 0x3c1f0000 | ((kernel_entry >> 16) & 0xffff)); /* lui ra, high(kernel_entry) */
+ stl_p(p++, 0x37ff0000 | (kernel_entry & 0xffff)); /* ori ra, ra, low(kernel_entry) */
+ stl_p(p++, 0x03e00008); /* jr ra */
+ stl_p(p++, 0x00000000); /* nop */
/* YAMON subroutines */
p = (uint32_t *) (base + 0x800);
- stl_raw(p++, 0x03e00008); /* jr ra */
- stl_raw(p++, 0x24020000); /* li v0,0 */
+ stl_p(p++, 0x03e00008); /* jr ra */
+ stl_p(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 */
+ stl_p(p++, 0x03e06821); /* move t5,ra */
+ stl_p(p++, 0x00805821); /* move t3,a0 */
+ stl_p(p++, 0x00a05021); /* move t2,a1 */
+ stl_p(p++, 0x91440000); /* lbu a0,0(t2) */
+ stl_p(p++, 0x254a0001); /* addiu t2,t2,1 */
+ stl_p(p++, 0x10800005); /* beqz a0,834 */
+ stl_p(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x0ff0021c); /* jal 870 */
+ stl_p(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x08000205); /* j 814 */
+ stl_p(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x01a00008); /* jr t5 */
+ stl_p(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 */
+ stl_p(p++, 0x03e06821); /* move t5,ra */
+ stl_p(p++, 0x00805821); /* move t3,a0 */
+ stl_p(p++, 0x00a05021); /* move t2,a1 */
+ stl_p(p++, 0x00c06021); /* move t4,a2 */
+ stl_p(p++, 0x91440000); /* lbu a0,0(t2) */
+ stl_p(p++, 0x0ff0021c); /* jal 870 */
+ stl_p(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x254a0001); /* addiu t2,t2,1 */
+ stl_p(p++, 0x258cffff); /* addiu t4,t4,-1 */
+ stl_p(p++, 0x1580fffa); /* bnez t4,84c */
+ stl_p(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x01a00008); /* jr t5 */
+ stl_p(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) */
+ stl_p(p++, 0x3c08b800); /* lui t0,0xb400 */
+ stl_p(p++, 0x350803f8); /* ori t0,t0,0x3f8 */
+ stl_p(p++, 0x91090005); /* lbu t1,5(t0) */
+ stl_p(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x31290040); /* andi t1,t1,0x40 */
+ stl_p(p++, 0x1120fffc); /* beqz t1,878 <outch+0x8> */
+ stl_p(p++, 0x00000000); /* nop */
+ stl_p(p++, 0x03e00008); /* jr ra */
+ stl_p(p++, 0xa1040000); /* sb a0,0(t0) */
}
}
prom_set(prom_buf, prom_index++, "memsize");
- prom_set(prom_buf, prom_index++, "%i", loaderparams.ram_size);
+ prom_set(prom_buf, prom_index++, "%i",
+ MIN(loaderparams.ram_size, 256 << 20));
prom_set(prom_buf, prom_index++, "modetty0");
prom_set(prom_buf, prom_index++, "38400n8r");
prom_set(prom_buf, prom_index++, NULL);
}
static
-void mips_malta_init(QEMUMachineInitArgs *args)
+void mips_malta_init(MachineState *machine)
{
- ram_addr_t ram_size = args->ram_size;
- const char *cpu_model = args->cpu_model;
- const char *kernel_filename = args->kernel_filename;
- const char *kernel_cmdline = args->kernel_cmdline;
- const char *initrd_filename = args->initrd_filename;
+ ram_addr_t ram_size = machine->ram_size;
+ const char *cpu_model = machine->cpu_model;
+ const char *kernel_filename = machine->kernel_filename;
+ const char *kernel_cmdline = machine->kernel_cmdline;
+ const char *initrd_filename = machine->initrd_filename;
char *filename;
pflash_t *fl;
MemoryRegion *system_memory = get_system_memory();
- MemoryRegion *ram = g_new(MemoryRegion, 1);
+ MemoryRegion *ram_high = g_new(MemoryRegion, 1);
+ MemoryRegion *ram_low_preio = g_new(MemoryRegion, 1);
+ MemoryRegion *ram_low_postio;
MemoryRegion *bios, *bios_copy = g_new(MemoryRegion, 1);
target_long bios_size = FLASH_SIZE;
const size_t smbus_eeprom_size = 8 * 256;
qemu_irq *isa_irq;
qemu_irq *cpu_exit_irq;
int piix4_devfn;
- i2c_bus *smbus;
+ I2CBus *smbus;
int i;
DriveInfo *dinfo;
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
env = &cpu->env;
/* allocate RAM */
- if (ram_size > (256 << 20)) {
+ if (ram_size > (2048u << 20)) {
fprintf(stderr,
- "qemu: Too much memory for this machine: %d MB, maximum 256 MB\n",
+ "qemu: Too much memory for this machine: %d MB, maximum 2048 MB\n",
((unsigned int)ram_size / (1 << 20)));
exit(1);
}
- memory_region_init_ram(ram, NULL, "mips_malta.ram", ram_size);
- vmstate_register_ram_global(ram);
- memory_region_add_subregion(system_memory, 0, ram);
+
+ /* register RAM at high address where it is undisturbed by IO */
+ memory_region_init_ram(ram_high, NULL, "mips_malta.ram", ram_size);
+ vmstate_register_ram_global(ram_high);
+ memory_region_add_subregion(system_memory, 0x80000000, ram_high);
+
+ /* alias for pre IO hole access */
+ memory_region_init_alias(ram_low_preio, NULL, "mips_malta_low_preio.ram",
+ ram_high, 0, MIN(ram_size, (256 << 20)));
+ memory_region_add_subregion(system_memory, 0, ram_low_preio);
+
+ /* alias for post IO hole access, if there is enough RAM */
+ if (ram_size > (512 << 20)) {
+ ram_low_postio = g_new(MemoryRegion, 1);
+ memory_region_init_alias(ram_low_postio, NULL,
+ "mips_malta_low_postio.ram",
+ ram_high, 512 << 20,
+ ram_size - (512 << 20));
+ memory_region_add_subregion(system_memory, 512 << 20, ram_low_postio);
+ }
/* generate SPD EEPROM data */
generate_eeprom_spd(&smbus_eeprom_buf[0 * 256], ram_size);
fl_idx++;
if (kernel_filename) {
/* Write a small bootloader to the flash location. */
- loaderparams.ram_size = ram_size;
+ loaderparams.ram_size = MIN(ram_size, 256 << 20);
loaderparams.kernel_filename = kernel_filename;
loaderparams.kernel_cmdline = kernel_cmdline;
loaderparams.initrd_filename = initrd_filename;
projects / mirror_qemu.git / blobdiff