| /* |
| * 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 "usb-ohci.h" |
| #include "net.h" |
| #include "sysemu.h" |
| #include "boards.h" |
| #include "fw_cfg.h" |
| #include "escc.h" |
| #include "openpic.h" |
| #include "ide.h" |
| #include "loader.h" |
| #include "elf.h" |
| |
| #define MAX_IDE_BUS 2 |
| #define VGA_BIOS_SIZE 65536 |
| #define CFG_ADDR 0xf0000510 |
| |
| /* debug UniNorth */ |
| //#define DEBUG_UNIN |
| |
| #ifdef DEBUG_UNIN |
| #define UNIN_DPRINTF(fmt, ...) \ |
| do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0) |
| #else |
| #define UNIN_DPRINTF(fmt, ...) |
| #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 * const unin_write[] = { |
| &unin_writel, |
| &unin_writel, |
| &unin_writel, |
| }; |
| |
| static CPUReadMemoryFunc * const unin_read[] = { |
| &unin_readl, |
| &unin_readl, |
| &unin_readl, |
| }; |
| |
| static int fw_cfg_boot_set(void *opaque, const char *boot_device) |
| { |
| fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); |
| return 0; |
| } |
| |
| /* PowerPC Mac99 hardware initialisation */ |
| static void ppc_core99_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) |
| { |
| CPUState *env = NULL, *envs[MAX_CPUS]; |
| char *filename; |
| qemu_irq *pic, **openpic_irqs; |
| int unin_memory; |
| int linux_boot, i; |
| ram_addr_t ram_offset, bios_offset, vga_bios_offset; |
| uint32_t kernel_base, kernel_size, initrd_base, initrd_size; |
| PCIBus *pci_bus; |
| MacIONVRAMState *nvr; |
| int nvram_mem_index; |
| int vga_bios_size, bios_size; |
| qemu_irq *dummy_irq; |
| int pic_mem_index, dbdma_mem_index, cuda_mem_index, escc_mem_index; |
| int ppc_boot_device; |
| DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; |
| void *fw_cfg; |
| void *dbdma; |
| uint8_t *vga_bios_ptr; |
| |
| linux_boot = (kernel_filename != NULL); |
| |
| /* init CPUs */ |
| if (cpu_model == NULL) |
| cpu_model = "G4"; |
| 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((QEMUResetHandler*)&cpu_reset, env); |
| envs[i] = env; |
| } |
| |
| /* allocate RAM */ |
| ram_offset = qemu_ram_alloc(ram_size); |
| cpu_register_physical_memory(0, ram_size, ram_offset); |
| |
| /* allocate and load BIOS */ |
| bios_offset = qemu_ram_alloc(BIOS_SIZE); |
| if (bios_name == NULL) |
| bios_name = PROM_FILENAME; |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); |
| cpu_register_physical_memory(PROM_ADDR, BIOS_SIZE, bios_offset | IO_MEM_ROM); |
| |
| /* Load OpenBIOS (ELF) */ |
| if (filename) { |
| bios_size = load_elf(filename, 0, NULL, NULL, NULL, 1, ELF_MACHINE, 0); |
| |
| qemu_free(filename); |
| } else { |
| bios_size = -1; |
| } |
| if (bios_size < 0 || bios_size > BIOS_SIZE) { |
| hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name); |
| exit(1); |
| } |
| |
| /* allocate and load VGA BIOS */ |
| vga_bios_offset = qemu_ram_alloc(VGA_BIOS_SIZE); |
| vga_bios_ptr = qemu_get_ram_ptr(vga_bios_offset); |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, VGABIOS_FILENAME); |
| if (filename) { |
| vga_bios_size = load_image(filename, vga_bios_ptr + 8); |
| qemu_free(filename); |
| } else { |
| vga_bios_size = -1; |
| } |
| 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", |
| VGABIOS_FILENAME); |
| vga_bios_size = 0; |
| } else { |
| /* set a specific header (XXX: find real Apple format for NDRV |
| drivers) */ |
| vga_bios_ptr[0] = 'N'; |
| vga_bios_ptr[1] = 'D'; |
| vga_bios_ptr[2] = 'R'; |
| vga_bios_ptr[3] = 'V'; |
| cpu_to_be32w((uint32_t *)(vga_bios_ptr + 4), vga_bios_size); |
| vga_bios_size += 8; |
| |
| /* Round to page boundary */ |
| vga_bios_size = (vga_bios_size + TARGET_PAGE_SIZE - 1) & |
| TARGET_PAGE_MASK; |
| } |
| |
| if (linux_boot) { |
| uint64_t lowaddr = 0; |
| int bswap_needed; |
| |
| #ifdef BSWAP_NEEDED |
| bswap_needed = 1; |
| #else |
| bswap_needed = 0; |
| #endif |
| kernel_base = KERNEL_LOAD_ADDR; |
| |
| /* Now we can load the kernel. The first step tries to load the kernel |
| supposing PhysAddr = 0x00000000. If that was wrong the kernel is |
| loaded again, the new PhysAddr being computed from lowaddr. */ |
| kernel_size = load_elf(kernel_filename, kernel_base, NULL, &lowaddr, NULL, |
| 1, ELF_MACHINE, 0); |
| if (kernel_size > 0 && lowaddr != KERNEL_LOAD_ADDR) { |
| kernel_size = load_elf(kernel_filename, (2 * kernel_base) - lowaddr, |
| NULL, NULL, NULL, 1, ELF_MACHINE, 0); |
| } |
| if (kernel_size < 0) |
| kernel_size = load_aout(kernel_filename, kernel_base, |
| ram_size - kernel_base, bswap_needed, |
| TARGET_PAGE_SIZE); |
| if (kernel_size < 0) |
| kernel_size = load_image_targphys(kernel_filename, |
| kernel_base, |
| ram_size - kernel_base); |
| if (kernel_size < 0) { |
| hw_error("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_targphys(initrd_filename, initrd_base, |
| ram_size - initrd_base); |
| if (initrd_size < 0) { |
| hw_error("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(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: |
| hw_error("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, 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_nofail(&nd_table[i], "ne2k_pci", NULL); |
| |
| 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++) { |
| hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); |
| } |
| dbdma = DBDMA_init(&dbdma_mem_index); |
| pci_cmd646_ide_init(pci_bus, hd, 0); |
| |
| /* 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, 0, NULL, |
| escc_mem_index); |
| |
| if (usb_enabled) { |
| usb_ohci_init_pci(pci_bus, -1); |
| } |
| |
| if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) |
| graphic_depth = 15; |
| |
| /* 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); |
| /* No PCI init: the BIOS will do it */ |
| |
| fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1); |
| fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_MAC99); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); |
| if (kernel_cmdline) { |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR); |
| pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline); |
| } else { |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); |
| } |
| fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device); |
| |
| fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); |
| |
| qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); |
| } |
| |
| static QEMUMachine core99_machine = { |
| .name = "mac99", |
| .desc = "Mac99 based PowerMAC", |
| .init = ppc_core99_init, |
| .max_cpus = MAX_CPUS, |
| }; |
| |
| static void core99_machine_init(void) |
| { |
| qemu_register_machine(&core99_machine); |
| } |
| |
| machine_init(core99_machine_init); |
