prep: Move PReP machine to hw/ppc/

Signed-off-by: Andreas Färber <andreas.faerber@web.de>

1 files changed, 0 insertions, 680 deletions

diff --git a/hw/ppc_prep.c b/hw/ppc_prep.c
deleted file mode 100644
index a35fbedbdc..0000000000
--- a/hw/ppc_prep.c
+++ /dev/null
@@ -1,680 +0,0 @@
-/*
- * QEMU PPC PREP hardware System Emulator
- *
- * Copyright (c) 2003-2007 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 "nvram.h"
-#include "pc.h"
-#include "serial.h"
-#include "fdc.h"
-#include "net/net.h"
-#include "sysemu/sysemu.h"
-#include "isa.h"
-#include "pci/pci.h"
-#include "pci/pci_host.h"
-#include "ppc.h"
-#include "boards.h"
-#include "qemu/log.h"
-#include "ide.h"
-#include "loader.h"
-#include "mc146818rtc.h"
-#include "pc87312.h"
-#include "sysemu/blockdev.h"
-#include "sysemu/arch_init.h"
-#include "exec/address-spaces.h"
-
-//#define HARD_DEBUG_PPC_IO
-//#define DEBUG_PPC_IO
-
-/* SMP is not enabled, for now */
-#define MAX_CPUS 1
-
-#define MAX_IDE_BUS 2
-
-#define BIOS_SIZE (1024 * 1024)
-#define BIOS_FILENAME "ppc_rom.bin"
-#define KERNEL_LOAD_ADDR 0x01000000
-#define INITRD_LOAD_ADDR 0x01800000
-
-#if defined (HARD_DEBUG_PPC_IO) && !defined (DEBUG_PPC_IO)
-#define DEBUG_PPC_IO
-#endif
-
-#if defined (HARD_DEBUG_PPC_IO)
-#define PPC_IO_DPRINTF(fmt, ...)                         \
-do {                                                     \
-    if (qemu_loglevel_mask(CPU_LOG_IOPORT)) {            \
-        qemu_log("%s: " fmt, __func__ , ## __VA_ARGS__); \
-    } else {                                             \
-        printf("%s : " fmt, __func__ , ## __VA_ARGS__);  \
-    }                                                    \
-} while (0)
-#elif defined (DEBUG_PPC_IO)
-#define PPC_IO_DPRINTF(fmt, ...) \
-qemu_log_mask(CPU_LOG_IOPORT, fmt, ## __VA_ARGS__)
-#else
-#define PPC_IO_DPRINTF(fmt, ...) do { } while (0)
-#endif
-
-/* Constants for devices init */
-static const int ide_iobase[2] = { 0x1f0, 0x170 };
-static const int ide_iobase2[2] = { 0x3f6, 0x376 };
-static const int ide_irq[2] = { 13, 13 };
-
-#define NE2000_NB_MAX 6
-
-static uint32_t ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
-static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
-
-/* ISA IO ports bridge */
-#define PPC_IO_BASE 0x80000000
-
-/* PowerPC control and status registers */
-#if 0 // Not used
-static struct {
-    /* IDs */
-    uint32_t veni_devi;
-    uint32_t revi;
-    /* Control and status */
-    uint32_t gcsr;
-    uint32_t xcfr;
-    uint32_t ct32;
-    uint32_t mcsr;
-    /* General purpose registers */
-    uint32_t gprg[6];
-    /* Exceptions */
-    uint32_t feen;
-    uint32_t fest;
-    uint32_t fema;
-    uint32_t fecl;
-    uint32_t eeen;
-    uint32_t eest;
-    uint32_t eecl;
-    uint32_t eeint;
-    uint32_t eemck0;
-    uint32_t eemck1;
-    /* Error diagnostic */
-} XCSR;
-
-static void PPC_XCSR_writeb (void *opaque,
-                             hwaddr addr, uint32_t value)
-{
-    printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
-           value);
-}
-
-static void PPC_XCSR_writew (void *opaque,
-                             hwaddr addr, uint32_t value)
-{
-    printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
-           value);
-}
-
-static void PPC_XCSR_writel (void *opaque,
-                             hwaddr addr, uint32_t value)
-{
-    printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
-           value);
-}
-
-static uint32_t PPC_XCSR_readb (void *opaque, hwaddr addr)
-{
-    uint32_t retval = 0;
-
-    printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
-           retval);
-
-    return retval;
-}
-
-static uint32_t PPC_XCSR_readw (void *opaque, hwaddr addr)
-{
-    uint32_t retval = 0;
-
-    printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
-           retval);
-
-    return retval;
-}
-
-static uint32_t PPC_XCSR_readl (void *opaque, hwaddr addr)
-{
-    uint32_t retval = 0;
-
-    printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
-           retval);
-
-    return retval;
-}
-
-static const MemoryRegionOps PPC_XCSR_ops = {
-    .old_mmio = {
-        .read = { PPC_XCSR_readb, PPC_XCSR_readw, PPC_XCSR_readl, },
-        .write = { PPC_XCSR_writeb, PPC_XCSR_writew, PPC_XCSR_writel, },
-    },
-    .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
-#endif
-
-/* Fake super-io ports for PREP platform (Intel 82378ZB) */
-typedef struct sysctrl_t {
-    qemu_irq reset_irq;
-    M48t59State *nvram;
-    uint8_t state;
-    uint8_t syscontrol;
-    int contiguous_map;
-    int endian;
-} sysctrl_t;
-
-enum {
-    STATE_HARDFILE = 0x01,
-};
-
-static sysctrl_t *sysctrl;
-
-static void PREP_io_800_writeb (void *opaque, uint32_t addr, uint32_t val)
-{
-    sysctrl_t *sysctrl = opaque;
-
-    PPC_IO_DPRINTF("0x%08" PRIx32 " => 0x%02" PRIx32 "\n",
-                   addr - PPC_IO_BASE, val);
-    switch (addr) {
-    case 0x0092:
-        /* Special port 92 */
-        /* Check soft reset asked */
-        if (val & 0x01) {
-            qemu_irq_raise(sysctrl->reset_irq);
-        } else {
-            qemu_irq_lower(sysctrl->reset_irq);
-        }
-        /* Check LE mode */
-        if (val & 0x02) {
-            sysctrl->endian = 1;
-        } else {
-            sysctrl->endian = 0;
-        }
-        break;
-    case 0x0800:
-        /* Motorola CPU configuration register : read-only */
-        break;
-    case 0x0802:
-        /* Motorola base module feature register : read-only */
-        break;
-    case 0x0803:
-        /* Motorola base module status register : read-only */
-        break;
-    case 0x0808:
-        /* Hardfile light register */
-        if (val & 1)
-            sysctrl->state |= STATE_HARDFILE;
-        else
-            sysctrl->state &= ~STATE_HARDFILE;
-        break;
-    case 0x0810:
-        /* Password protect 1 register */
-        if (sysctrl->nvram != NULL)
-            m48t59_toggle_lock(sysctrl->nvram, 1);
-        break;
-    case 0x0812:
-        /* Password protect 2 register */
-        if (sysctrl->nvram != NULL)
-            m48t59_toggle_lock(sysctrl->nvram, 2);
-        break;
-    case 0x0814:
-        /* L2 invalidate register */
-        //        tlb_flush(first_cpu, 1);
-        break;
-    case 0x081C:
-        /* system control register */
-        sysctrl->syscontrol = val & 0x0F;
-        break;
-    case 0x0850:
-        /* I/O map type register */
-        sysctrl->contiguous_map = val & 0x01;
-        break;
-    default:
-        printf("ERROR: unaffected IO port write: %04" PRIx32
-               " => %02" PRIx32"\n", addr, val);
-        break;
-    }
-}
-
-static uint32_t PREP_io_800_readb (void *opaque, uint32_t addr)
-{
-    sysctrl_t *sysctrl = opaque;
-    uint32_t retval = 0xFF;
-
-    switch (addr) {
-    case 0x0092:
-        /* Special port 92 */
-        retval = 0x00;
-        break;
-    case 0x0800:
-        /* Motorola CPU configuration register */
-        retval = 0xEF; /* MPC750 */
-        break;
-    case 0x0802:
-        /* Motorola Base module feature register */
-        retval = 0xAD; /* No ESCC, PMC slot neither ethernet */
-        break;
-    case 0x0803:
-        /* Motorola base module status register */
-        retval = 0xE0; /* Standard MPC750 */
-        break;
-    case 0x080C:
-        /* Equipment present register:
-         *  no L2 cache
-         *  no upgrade processor
-         *  no cards in PCI slots
-         *  SCSI fuse is bad
-         */
-        retval = 0x3C;
-        break;
-    case 0x0810:
-        /* Motorola base module extended feature register */
-        retval = 0x39; /* No USB, CF and PCI bridge. NVRAM present */
-        break;
-    case 0x0814:
-        /* L2 invalidate: don't care */
-        break;
-    case 0x0818:
-        /* Keylock */
-        retval = 0x00;
-        break;
-    case 0x081C:
-        /* system control register
-         * 7 - 6 / 1 - 0: L2 cache enable
-         */
-        retval = sysctrl->syscontrol;
-        break;
-    case 0x0823:
-        /* */
-        retval = 0x03; /* no L2 cache */
-        break;
-    case 0x0850:
-        /* I/O map type register */
-        retval = sysctrl->contiguous_map;
-        break;
-    default:
-        printf("ERROR: unaffected IO port: %04" PRIx32 " read\n", addr);
-        break;
-    }
-    PPC_IO_DPRINTF("0x%08" PRIx32 " <= 0x%02" PRIx32 "\n",
-                   addr - PPC_IO_BASE, retval);
-
-    return retval;
-}
-
-static inline hwaddr prep_IO_address(sysctrl_t *sysctrl,
-                                                 hwaddr addr)
-{
-    if (sysctrl->contiguous_map == 0) {
-        /* 64 KB contiguous space for IOs */
-        addr &= 0xFFFF;
-    } else {
-        /* 8 MB non-contiguous space for IOs */
-        addr = (addr & 0x1F) | ((addr & 0x007FFF000) >> 7);
-    }
-
-    return addr;
-}
-
-static void PPC_prep_io_writeb (void *opaque, hwaddr addr,
-                                uint32_t value)
-{
-    sysctrl_t *sysctrl = opaque;
-
-    addr = prep_IO_address(sysctrl, addr);
-    cpu_outb(addr, value);
-}
-
-static uint32_t PPC_prep_io_readb (void *opaque, hwaddr addr)
-{
-    sysctrl_t *sysctrl = opaque;
-    uint32_t ret;
-
-    addr = prep_IO_address(sysctrl, addr);
-    ret = cpu_inb(addr);
-
-    return ret;
-}
-
-static void PPC_prep_io_writew (void *opaque, hwaddr addr,
-                                uint32_t value)
-{
-    sysctrl_t *sysctrl = opaque;
-
-    addr = prep_IO_address(sysctrl, addr);
-    PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value);
-    cpu_outw(addr, value);
-}
-
-static uint32_t PPC_prep_io_readw (void *opaque, hwaddr addr)
-{
-    sysctrl_t *sysctrl = opaque;
-    uint32_t ret;
-
-    addr = prep_IO_address(sysctrl, addr);
-    ret = cpu_inw(addr);
-    PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret);
-
-    return ret;
-}
-
-static void PPC_prep_io_writel (void *opaque, hwaddr addr,
-                                uint32_t value)
-{
-    sysctrl_t *sysctrl = opaque;
-
-    addr = prep_IO_address(sysctrl, addr);
-    PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value);
-    cpu_outl(addr, value);
-}
-
-static uint32_t PPC_prep_io_readl (void *opaque, hwaddr addr)
-{
-    sysctrl_t *sysctrl = opaque;
-    uint32_t ret;
-
-    addr = prep_IO_address(sysctrl, addr);
-    ret = cpu_inl(addr);
-    PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret);
-
-    return ret;
-}
-
-static const MemoryRegionOps PPC_prep_io_ops = {
-    .old_mmio = {
-        .read = { PPC_prep_io_readb, PPC_prep_io_readw, PPC_prep_io_readl },
-        .write = { PPC_prep_io_writeb, PPC_prep_io_writew, PPC_prep_io_writel },
-    },
-    .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
-#define NVRAM_SIZE        0x2000
-
-static void cpu_request_exit(void *opaque, int irq, int level)
-{
-    CPUPPCState *env = cpu_single_env;
-
-    if (env && level) {
-        cpu_exit(env);
-    }
-}
-
-static void ppc_prep_reset(void *opaque)
-{
-    PowerPCCPU *cpu = opaque;
-
-    cpu_reset(CPU(cpu));
-}
-
-/* PowerPC PREP hardware initialisation */
-static void ppc_prep_init(QEMUMachineInitArgs *args)
-{
-    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;
-    const char *boot_device = args->boot_device;
-    MemoryRegion *sysmem = get_system_memory();
-    PowerPCCPU *cpu = NULL;
-    CPUPPCState *env = NULL;
-    char *filename;
-    nvram_t nvram;
-    M48t59State *m48t59;
-    MemoryRegion *PPC_io_memory = g_new(MemoryRegion, 1);
-#if 0
-    MemoryRegion *xcsr = g_new(MemoryRegion, 1);
-#endif
-    int linux_boot, i, nb_nics1, bios_size;
-    MemoryRegion *ram = g_new(MemoryRegion, 1);
-    MemoryRegion *bios = g_new(MemoryRegion, 1);
-    uint32_t kernel_base, initrd_base;
-    long kernel_size, initrd_size;
-    DeviceState *dev;
-    PCIHostState *pcihost;
-    PCIBus *pci_bus;
-    PCIDevice *pci;
-    ISABus *isa_bus;
-    ISADevice *isa;
-    qemu_irq *cpu_exit_irq;
-    int ppc_boot_device;
-    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
-
-    sysctrl = g_malloc0(sizeof(sysctrl_t));
-
-    linux_boot = (kernel_filename != NULL);
-
-    /* init CPUs */
-    if (cpu_model == NULL)
-        cpu_model = "602";
-    for (i = 0; i < smp_cpus; i++) {
-        cpu = cpu_ppc_init(cpu_model);
-        if (cpu == NULL) {
-            fprintf(stderr, "Unable to find PowerPC CPU definition\n");
-            exit(1);
-        }
-        env = &cpu->env;
-
-        if (env->flags & POWERPC_FLAG_RTC_CLK) {
-            /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */
-            cpu_ppc_tb_init(env, 7812500UL);
-        } else {
-            /* Set time-base frequency to 100 Mhz */
-            cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
-        }
-        qemu_register_reset(ppc_prep_reset, cpu);
-    }
-
-    /* allocate RAM */
-    memory_region_init_ram(ram, "ppc_prep.ram", ram_size);
-    vmstate_register_ram_global(ram);
-    memory_region_add_subregion(sysmem, 0, ram);
-
-    /* allocate and load BIOS */
-    memory_region_init_ram(bios, "ppc_prep.bios", BIOS_SIZE);
-    memory_region_set_readonly(bios, true);
-    memory_region_add_subregion(sysmem, (uint32_t)(-BIOS_SIZE), bios);
-    vmstate_register_ram_global(bios);
-    if (bios_name == NULL)
-        bios_name = BIOS_FILENAME;
-    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
-    if (filename) {
-        bios_size = get_image_size(filename);
-    } else {
-        bios_size = -1;
-    }
-    if (bios_size > 0 && bios_size <= BIOS_SIZE) {
-        hwaddr bios_addr;
-        bios_size = (bios_size + 0xfff) & ~0xfff;
-        bios_addr = (uint32_t)(-bios_size);
-        bios_size = load_image_targphys(filename, bios_addr, bios_size);
-    }
-    if (bios_size < 0 || bios_size > BIOS_SIZE) {
-        hw_error("qemu: could not load PPC PREP bios '%s'\n", bios_name);
-    }
-    if (filename) {
-        g_free(filename);
-    }
-
-    if (linux_boot) {
-        kernel_base = KERNEL_LOAD_ADDR;
-        /* now we can load the kernel */
-        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);
-            }
-        } 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';
-        /* For now, OHW cannot boot from the network. */
-        for (i = 0; boot_device[i] != '\0'; i++) {
-            if (boot_device[i] >= 'a' && 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);
-        }
-    }
-
-    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
-        hw_error("Only 6xx bus is supported on PREP machine\n");
-    }
-
-    dev = qdev_create(NULL, "raven-pcihost");
-    pcihost = PCI_HOST_BRIDGE(dev);
-    pcihost->address_space = get_system_memory();
-    object_property_add_child(qdev_get_machine(), "raven", OBJECT(dev), NULL);
-    qdev_init_nofail(dev);
-    pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0");
-    if (pci_bus == NULL) {
-        fprintf(stderr, "Couldn't create PCI host controller.\n");
-        exit(1);
-    }
-
-    /* PCI -> ISA bridge */
-    pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), "i82378");
-    cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
-    qdev_connect_gpio_out(&pci->qdev, 0,
-                          first_cpu->irq_inputs[PPC6xx_INPUT_INT]);
-    qdev_connect_gpio_out(&pci->qdev, 1, *cpu_exit_irq);
-    sysbus_connect_irq(&pcihost->busdev, 0, qdev_get_gpio_in(&pci->qdev, 9));
-    sysbus_connect_irq(&pcihost->busdev, 1, qdev_get_gpio_in(&pci->qdev, 11));
-    sysbus_connect_irq(&pcihost->busdev, 2, qdev_get_gpio_in(&pci->qdev, 9));
-    sysbus_connect_irq(&pcihost->busdev, 3, qdev_get_gpio_in(&pci->qdev, 11));
-    isa_bus = DO_UPCAST(ISABus, qbus, qdev_get_child_bus(&pci->qdev, "isa.0"));
-
-    /* Super I/O (parallel + serial ports) */
-    isa = isa_create(isa_bus, TYPE_PC87312);
-    qdev_prop_set_uint8(&isa->qdev, "config", 13); /* fdc, ser0, ser1, par0 */
-    qdev_init_nofail(&isa->qdev);
-
-    /* Register 8 MB of ISA IO space (needed for non-contiguous map) */
-    memory_region_init_io(PPC_io_memory, &PPC_prep_io_ops, sysctrl,
-                          "ppc-io", 0x00800000);
-    memory_region_add_subregion(sysmem, 0x80000000, PPC_io_memory);
-
-    /* init basic PC hardware */
-    pci_vga_init(pci_bus);
-
-    nb_nics1 = nb_nics;
-    if (nb_nics1 > NE2000_NB_MAX)
-        nb_nics1 = NE2000_NB_MAX;
-    for(i = 0; i < nb_nics1; i++) {
-        if (nd_table[i].model == NULL) {
-	    nd_table[i].model = g_strdup("ne2k_isa");
-        }
-        if (strcmp(nd_table[i].model, "ne2k_isa") == 0) {
-            isa_ne2000_init(isa_bus, ne2000_io[i], ne2000_irq[i],
-                            &nd_table[i]);
-        } else {
-            pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL);
-        }
-    }
-
-    ide_drive_get(hd, MAX_IDE_BUS);
-    for(i = 0; i < MAX_IDE_BUS; i++) {
-        isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], ide_irq[i],
-                     hd[2 * i],
-		     hd[2 * i + 1]);
-    }
-    isa_create_simple(isa_bus, "i8042");
-
-    sysctrl->reset_irq = first_cpu->irq_inputs[PPC6xx_INPUT_HRESET];
-    /* System control ports */
-    register_ioport_read(0x0092, 0x01, 1, &PREP_io_800_readb, sysctrl);
-    register_ioport_write(0x0092, 0x01, 1, &PREP_io_800_writeb, sysctrl);
-    register_ioport_read(0x0800, 0x52, 1, &PREP_io_800_readb, sysctrl);
-    register_ioport_write(0x0800, 0x52, 1, &PREP_io_800_writeb, sysctrl);
-    /* PowerPC control and status register group */
-#if 0
-    memory_region_init_io(xcsr, &PPC_XCSR_ops, NULL, "ppc-xcsr", 0x1000);
-    memory_region_add_subregion(sysmem, 0xFEFF0000, xcsr);
-#endif
-
-    if (usb_enabled(false)) {
-        pci_create_simple(pci_bus, -1, "pci-ohci");
-    }
-
-    m48t59 = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 59);
-    if (m48t59 == NULL)
-        return;
-    sysctrl->nvram = m48t59;
-
-    /* Initialise NVRAM */
-    nvram.opaque = m48t59;
-    nvram.read_fn = &m48t59_read;
-    nvram.write_fn = &m48t59_write;
-    PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "PREP", 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);
-
-    /* Special port to get debug messages from Open-Firmware */
-    register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL);
-
-    /* Initialize audio subsystem */
-    audio_init(isa_bus, pci_bus);
-}
-
-static QEMUMachine prep_machine = {
-    .name = "prep",
-    .desc = "PowerPC PREP platform",
-    .init = ppc_prep_init,
-    .max_cpus = MAX_CPUS,
-    DEFAULT_MACHINE_OPTIONS,
-};
-
-static void prep_machine_init(void)
-{
-    qemu_register_machine(&prep_machine);
-}
-
-machine_init(prep_machine_init);