/* * QEMU PowerPC CHRP (currently NewWorld PowerMac) hardware System Emulator * * Copyright (c) 2004-2007 Fabrice Bellard * Copyright (c) 2007 Jocelyn Mayer * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "hw.h" #include "ppc.h" #include "ppc_mac.h" #include "mac_dbdma.h" #include "nvram.h" #include "pc.h" #include "pci.h" #include "net.h" #include "sysemu.h" #include "boards.h" #include "escc.h" #define MAX_IDE_BUS 2 #define VGA_BIOS_SIZE 65536 /* debug UniNorth */ //#define DEBUG_UNIN #ifdef DEBUG_UNIN #define UNIN_DPRINTF(fmt, args...) \ do { printf("UNIN: " fmt , ##args); } while (0) #else #define UNIN_DPRINTF(fmt, args...) #endif /* UniN device */ static void unin_writel (void *opaque, target_phys_addr_t addr, uint32_t value) { UNIN_DPRINTF("writel addr " TARGET_FMT_plx " val %x\n", addr, value); } static uint32_t unin_readl (void *opaque, target_phys_addr_t addr) { uint32_t value; value = 0; UNIN_DPRINTF("readl addr " TARGET_FMT_plx " val %x\n", addr, value); return value; } static CPUWriteMemoryFunc *unin_write[] = { &unin_writel, &unin_writel, &unin_writel, }; static CPUReadMemoryFunc *unin_read[] = { &unin_readl, &unin_readl, &unin_readl, }; /* PowerPC Mac99 hardware initialisation */ static void ppc_core99_init (ram_addr_t ram_size, int vga_ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { CPUState *env = NULL, *envs[MAX_CPUS]; char buf[1024]; qemu_irq *pic, **openpic_irqs; int unin_memory; int linux_boot, i; ram_addr_t ram_offset, vga_ram_offset, bios_offset, vga_bios_offset; uint32_t kernel_base, kernel_size, initrd_base, initrd_size; PCIBus *pci_bus; nvram_t nvram; #if 0 MacIONVRAMState *nvr; int nvram_mem_index; #endif m48t59_t *m48t59; int vga_bios_size, bios_size; qemu_irq *dummy_irq; int pic_mem_index, dbdma_mem_index, cuda_mem_index, escc_mem_index; int ide_mem_index[2]; int ppc_boot_device; int index; BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; void *dbdma; linux_boot = (kernel_filename != NULL); /* init CPUs */ if (cpu_model == NULL) cpu_model = "default"; for (i = 0; i < smp_cpus; i++) { env = cpu_init(cpu_model); if (!env) { fprintf(stderr, "Unable to find PowerPC CPU definition\n"); exit(1); } /* Set time-base frequency to 100 Mhz */ cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); #if 0 env->osi_call = vga_osi_call; #endif qemu_register_reset(&cpu_ppc_reset, env); envs[i] = env; } if (env->nip < 0xFFF80000) { /* Special test for PowerPC 601: * the boot vector is at 0xFFF00100, then we need a 1MB BIOS. * But the NVRAM is located at 0xFFF04000... */ cpu_abort(env, "Mac99 hardware can not handle 1 MB BIOS\n"); } /* allocate RAM */ ram_offset = qemu_ram_alloc(ram_size); cpu_register_physical_memory(0, ram_size, ram_offset); /* allocate VGA RAM */ vga_ram_offset = qemu_ram_alloc(vga_ram_size); /* allocate and load BIOS */ bios_offset = qemu_ram_alloc(BIOS_SIZE); if (bios_name == NULL) bios_name = BIOS_FILENAME; snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name); bios_size = load_image(buf, phys_ram_base + bios_offset); if (bios_size < 0 || bios_size > BIOS_SIZE) { cpu_abort(env, "qemu: could not load PowerPC bios '%s'\n", buf); exit(1); } bios_size = (bios_size + 0xfff) & ~0xfff; if (bios_size > 0x00080000) { /* As the NVRAM is located at 0xFFF04000, we cannot use 1 MB BIOSes */ cpu_abort(env, "Mac99 hardware can not handle 1 MB BIOS\n"); } cpu_register_physical_memory((uint32_t)(-bios_size), bios_size, bios_offset | IO_MEM_ROM); /* allocate and load VGA BIOS */ vga_bios_offset = qemu_ram_alloc(VGA_BIOS_SIZE); snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); vga_bios_size = load_image(buf, phys_ram_base + vga_bios_offset + 8); if (vga_bios_size < 0) { /* if no bios is present, we can still work */ fprintf(stderr, "qemu: warning: could not load VGA bios '%s'\n", buf); vga_bios_size = 0; } else { /* set a specific header (XXX: find real Apple format for NDRV drivers) */ phys_ram_base[vga_bios_offset] = 'N'; phys_ram_base[vga_bios_offset + 1] = 'D'; phys_ram_base[vga_bios_offset + 2] = 'R'; phys_ram_base[vga_bios_offset + 3] = 'V'; cpu_to_be32w((uint32_t *)(phys_ram_base + vga_bios_offset + 4), vga_bios_size); vga_bios_size += 8; } if (linux_boot) { kernel_base = KERNEL_LOAD_ADDR; /* now we can load the kernel */ kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base); if (kernel_size < 0) { cpu_abort(env, "qemu: could not load kernel '%s'\n", kernel_filename); exit(1); } /* load initrd */ if (initrd_filename) { initrd_base = INITRD_LOAD_ADDR; initrd_size = load_image(initrd_filename, phys_ram_base + initrd_base); if (initrd_size < 0) { cpu_abort(env, "qemu: could not load initial ram disk '%s'\n", initrd_filename); exit(1); } } else { initrd_base = 0; initrd_size = 0; } ppc_boot_device = 'm'; } else { kernel_base = 0; kernel_size = 0; initrd_base = 0; initrd_size = 0; ppc_boot_device = '\0'; /* We consider that NewWorld PowerMac never have any floppy drive * For now, OHW cannot boot from the network. */ for (i = 0; boot_device[i] != '\0'; i++) { if (boot_device[i] >= 'c' && boot_device[i] <= 'f') { ppc_boot_device = boot_device[i]; break; } } if (ppc_boot_device == '\0') { fprintf(stderr, "No valid boot device for Mac99 machine\n"); exit(1); } } isa_mem_base = 0x80000000; /* Register 8 MB of ISA IO space */ isa_mmio_init(0xf2000000, 0x00800000); /* UniN init */ unin_memory = cpu_register_io_memory(0, unin_read, unin_write, NULL); cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory); openpic_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *)); openpic_irqs[0] = qemu_mallocz(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB); for (i = 0; i < smp_cpus; i++) { /* Mac99 IRQ connection between OpenPIC outputs pins * and PowerPC input pins */ switch (PPC_INPUT(env)) { case PPC_FLAGS_INPUT_6xx: openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB); openpic_irqs[i][OPENPIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]; openpic_irqs[i][OPENPIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]; openpic_irqs[i][OPENPIC_OUTPUT_MCK] = ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_MCP]; /* Not connected ? */ openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL; /* Check this */ openpic_irqs[i][OPENPIC_OUTPUT_RESET] = ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_HRESET]; break; #if defined(TARGET_PPC64) case PPC_FLAGS_INPUT_970: openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB); openpic_irqs[i][OPENPIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT]; openpic_irqs[i][OPENPIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT]; openpic_irqs[i][OPENPIC_OUTPUT_MCK] = ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_MCP]; /* Not connected ? */ openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL; /* Check this */ openpic_irqs[i][OPENPIC_OUTPUT_RESET] = ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_HRESET]; break; #endif /* defined(TARGET_PPC64) */ default: cpu_abort(env, "Bus model not supported on mac99 machine\n"); exit(1); } } pic = openpic_init(NULL, &pic_mem_index, smp_cpus, openpic_irqs, NULL); pci_bus = pci_pmac_init(pic); /* init basic PC hardware */ pci_vga_init(pci_bus, phys_ram_base + vga_ram_offset, vga_ram_offset, vga_ram_size, vga_bios_offset, vga_bios_size); /* XXX: suppress that */ dummy_irq = i8259_init(NULL); escc_mem_index = escc_init(0x80013000, dummy_irq[4], dummy_irq[5], serial_hds[0], serial_hds[1], ESCC_CLOCK, 4); for(i = 0; i < nb_nics; i++) pci_nic_init(pci_bus, &nd_table[i], -1, "ne2k_pci"); if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) { fprintf(stderr, "qemu: too many IDE bus\n"); exit(1); } for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) { index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); if (index != -1) hd[i] = drives_table[index].bdrv; else hd[i] = NULL; } dbdma = DBDMA_init(&dbdma_mem_index); #if 1 ide_mem_index[0] = pmac_ide_init(&hd[0], pic[0x13], dbdma, 0x14, pic[0x01]); ide_mem_index[1] = pmac_ide_init(&hd[2], pic[0x14], dbdma, 0x16, pic[0x02]); #else pci_cmd646_ide_init(pci_bus, &hd[0], 0); #endif /* cuda also initialize ADB */ cuda_init(&cuda_mem_index, pic[0x19]); adb_kbd_init(&adb_bus); adb_mouse_init(&adb_bus); macio_init(pci_bus, PCI_DEVICE_ID_APPLE_UNI_N_KEYL, 0, pic_mem_index, dbdma_mem_index, cuda_mem_index, NULL, 2, ide_mem_index, escc_mem_index); if (usb_enabled) { usb_ohci_init_pci(pci_bus, 3, -1); } if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) graphic_depth = 15; #if 0 /* XXX: this is ugly but needed for now, or OHW won't boot */ /* The NewWorld NVRAM is not located in the MacIO device */ nvr = macio_nvram_init(&nvram_mem_index, 0x2000, 1); pmac_format_nvram_partition(nvr, 0x2000); macio_nvram_map(nvr, 0xFFF04000); nvram.opaque = nvr; nvram.read_fn = &macio_nvram_read; nvram.write_fn = &macio_nvram_write; #else m48t59 = m48t59_init(dummy_irq[8], 0xFFF04000, 0x0074, NVRAM_SIZE, 59); nvram.opaque = m48t59; nvram.read_fn = &m48t59_read; nvram.write_fn = &m48t59_write; #endif PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "MAC99", ram_size, ppc_boot_device, kernel_base, kernel_size, kernel_cmdline, initrd_base, initrd_size, /* XXX: need an option to load a NVRAM image */ 0, graphic_width, graphic_height, graphic_depth); /* No PCI init: the BIOS will do it */ /* Special port to get debug messages from Open-Firmware */ register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL); } QEMUMachine core99_machine = { .name = "mac99", .desc = "Mac99 based PowerMAC", .init = ppc_core99_init, .ram_require = BIOS_SIZE + VGA_BIOS_SIZE + VGA_RAM_SIZE, .max_cpus = MAX_CPUS, };