void bareetraxfs_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) { DeviceState *dev; SysBusDevice *s; CPUState *env; qemu_irq irq[30], nmi[2], *cpu_irq; void *etraxfs_dmac; struct etraxfs_dma_client *eth[2] = {NULL, NULL}; int kernel_size; DriveInfo *dinfo; int i; ram_addr_t phys_ram; ram_addr_t phys_flash; ram_addr_t phys_intmem; /* init CPUs */ if (cpu_model == NULL) { cpu_model = "crisv32"; } env = cpu_init(cpu_model); qemu_register_reset(main_cpu_reset, env); /* allocate RAM */ phys_ram = qemu_ram_alloc(ram_size); cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM); /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the internal memory. */ phys_intmem = qemu_ram_alloc(INTMEM_SIZE); cpu_register_physical_memory(0x38000000, INTMEM_SIZE, phys_intmem | IO_MEM_RAM); phys_flash = qemu_ram_alloc(FLASH_SIZE); dinfo = drive_get(IF_PFLASH, 0, 0); pflash_cfi02_register(0x0, phys_flash, dinfo ? dinfo->bdrv : NULL, (64 * 1024), FLASH_SIZE >> 16, 1, 2, 0x0000, 0x0000, 0x0000, 0x0000, 0x555, 0x2aa); cpu_irq = cris_pic_init_cpu(env); dev = qdev_create(NULL, "etraxfs,pic"); /* FIXME: Is there a proper way to signal vectors to the CPU core? */ qdev_prop_set_ptr(dev, "interrupt_vector", &env->interrupt_vector); qdev_init(dev); s = sysbus_from_qdev(dev); sysbus_mmio_map(s, 0, 0x3001c000); sysbus_connect_irq(s, 0, cpu_irq[0]); sysbus_connect_irq(s, 1, cpu_irq[1]); for (i = 0; i < 30; i++) { irq[i] = qdev_get_gpio_in(dev, i); } nmi[0] = qdev_get_gpio_in(dev, 30); nmi[1] = qdev_get_gpio_in(dev, 31); etraxfs_dmac = etraxfs_dmac_init(0x30000000, 10); for (i = 0; i < 10; i++) { /* On ETRAX, odd numbered channels are inputs. */ etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1); } /* Add the two ethernet blocks. */ eth[0] = etraxfs_eth_init(&nd_table[0], 0x30034000, 1); if (nb_nics > 1) eth[1] = etraxfs_eth_init(&nd_table[1], 0x30036000, 2); /* The DMA Connector block is missing, hardwire things for now. */ etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]); etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1); if (eth[1]) { etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]); etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1); } /* 2 timers. */ sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq[0x1b], nmi[1], NULL); sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq[0x1b], nmi[1], NULL); for (i = 0; i < 4; i++) { sysbus_create_simple("etraxfs,serial", 0x30026000 + i * 0x2000, irq[0x14 + i]); } if (kernel_filename) { uint64_t entry, high; int kcmdline_len; /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis devboard SDK. */ kernel_size = load_elf(kernel_filename, -0x80000000LL, &entry, NULL, &high, 0, ELF_MACHINE, 0); bootstrap_pc = entry; if (kernel_size < 0) { /* Takes a kimage from the axis devboard SDK. */ kernel_size = load_image_targphys(kernel_filename, 0x40004000, ram_size); bootstrap_pc = 0x40004000; env->regs[9] = 0x40004000 + kernel_size; } env->regs[8] = 0x56902387; /* RAM init magic. */ if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) { if (kcmdline_len > 256) { fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n"); exit(1); } /* Let the kernel know we are modifying the cmdline. */ env->regs[10] = 0x87109563; env->regs[11] = 0x40000000; pstrcpy_targphys(env->regs[11], 256, kernel_cmdline); } } env->pc = bootstrap_pc; printf ("pc =%x\n", env->pc); printf ("ram size =%ld\n", ram_size); }