hw/ppc/prep: Remove the deprecated "prep" machine and the OpenHackware BIOS

It's been deprecated since QEMU v3.1. The 40p machine should be
used nowadays instead.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200114114617.28854-1-thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

15 files changed, 10 insertions, 455 deletions

diff --git a/.gitmodules b/.gitmodules
index 19792c9a11..9c0501a4d4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,9 +10,6 @@
 [submodule "roms/openbios"]
 	path = roms/openbios
 	url = https://git.qemu.org/git/openbios.git
-[submodule "roms/openhackware"]
-	path = roms/openhackware
-	url = https://git.qemu.org/git/openhackware.git
 [submodule "roms/qemu-palcode"]
 	path = roms/qemu-palcode
 	url = https://git.qemu.org/git/qemu-palcode.git
diff --git a/MAINTAINERS b/MAINTAINERS
index 4ceb1ad882..faffd447bf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1103,7 +1103,6 @@ F: hw/dma/i82374.c
 F: hw/rtc/m48t59-isa.c
 F: include/hw/isa/pc87312.h
 F: include/hw/rtc/m48t59.h
-F: pc-bios/ppc_rom.bin
 F: tests/acceptance/ppc_prep_40p.py
 
 sPAPR
diff --git a/Makefile b/Makefile
index 9a5a1e689c..3b21c0ea48 100644
--- a/Makefile
+++ b/Makefile
@@ -784,7 +784,7 @@ ifdef INSTALL_BLOBS
 BLOBS=bios.bin bios-256k.bin bios-microvm.bin sgabios.bin vgabios.bin vgabios-cirrus.bin \
 vgabios-stdvga.bin vgabios-vmware.bin vgabios-qxl.bin vgabios-virtio.bin \
 vgabios-ramfb.bin vgabios-bochs-display.bin vgabios-ati.bin \
-ppc_rom.bin openbios-sparc32 openbios-sparc64 openbios-ppc QEMU,tcx.bin QEMU,cgthree.bin \
+openbios-sparc32 openbios-sparc64 openbios-ppc QEMU,tcx.bin QEMU,cgthree.bin \
 pxe-e1000.rom pxe-eepro100.rom pxe-ne2k_pci.rom \
 pxe-pcnet.rom pxe-rtl8139.rom pxe-virtio.rom \
 efi-e1000.rom efi-eepro100.rom efi-ne2k_pci.rom \
diff --git a/docs/interop/firmware.json b/docs/interop/firmware.json
index 8ffb7856d2..240f565397 100644
--- a/docs/interop/firmware.json
+++ b/docs/interop/firmware.json
@@ -27,8 +27,7 @@
 #
 # @openfirmware: The interface is defined by the (historical) IEEE
 #                1275-1994 standard. Examples for firmware projects that
-#                provide this interface are: OpenBIOS, OpenHackWare,
-#                SLOF.
+#                provide this interface are: OpenBIOS and SLOF.
 #
 # @uboot: Firmware interface defined by the U-Boot project.
 #
diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
index 4c5fa29399..4a11fb1640 100644
--- a/hw/ppc/ppc.c
+++ b/hw/ppc/ppc.c
@@ -1490,24 +1490,6 @@ int ppc_dcr_init (CPUPPCState *env, int (*read_error)(int dcrn),
 }
 
 /*****************************************************************************/
-/* Debug port */
-void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val)
-{
-    addr &= 0xF;
-    switch (addr) {
-    case 0:
-        printf("%c", val);
-        break;
-    case 1:
-        printf("\n");
-        fflush(stdout);
-        break;
-    case 2:
-        printf("Set loglevel to %04" PRIx32 "\n", val);
-        qemu_set_log(val | 0x100);
-        break;
-    }
-}
 
 int ppc_cpu_pir(PowerPCCPU *cpu)
 {
diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
index 862345c2ac..111cc80867 100644
--- a/hw/ppc/prep.c
+++ b/hw/ppc/prep.c
@@ -42,7 +42,7 @@
 #include "hw/loader.h"
 #include "hw/rtc/mc146818rtc.h"
 #include "hw/isa/pc87312.h"
-#include "hw/net/ne2000-isa.h"
+#include "hw/qdev-properties.h"
 #include "sysemu/arch_init.h"
 #include "sysemu/kvm.h"
 #include "sysemu/qtest.h"
@@ -60,178 +60,9 @@
 
 #define CFG_ADDR 0xf0000510
 
-#define BIOS_SIZE (1 * MiB)
-#define BIOS_FILENAME "ppc_rom.bin"
 #define KERNEL_LOAD_ADDR 0x01000000
 #define INITRD_LOAD_ADDR 0x01800000
 
-/* 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
-
-/* Fake super-io ports for PREP platform (Intel 82378ZB) */
-typedef struct sysctrl_t {
-    qemu_irq reset_irq;
-    Nvram *nvram;
-    uint8_t state;
-    uint8_t syscontrol;
-    int contiguous_map;
-    qemu_irq contiguous_map_irq;
-    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;
-
-    trace_prep_io_800_writeb(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) {
-            NvramClass *k = NVRAM_GET_CLASS(sysctrl->nvram);
-            (k->toggle_lock)(sysctrl->nvram, 1);
-        }
-        break;
-    case 0x0812:
-        /* Password protect 2 register */
-        if (sysctrl->nvram != NULL) {
-            NvramClass *k = NVRAM_GET_CLASS(sysctrl->nvram);
-            (k->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;
-        qemu_set_irq(sysctrl->contiguous_map_irq, sysctrl->contiguous_map);
-        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 = sysctrl->endian << 1;
-        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;
-    }
-    trace_prep_io_800_readb(addr - PPC_IO_BASE, retval);
-
-    return retval;
-}
-
-
 #define NVRAM_SIZE        0x2000
 
 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
@@ -247,17 +78,6 @@ static void ppc_prep_reset(void *opaque)
     cpu_reset(CPU(cpu));
 }
 
-static const MemoryRegionPortio prep_portio_list[] = {
-    /* System control ports */
-    { 0x0092, 1, 1, .read = PREP_io_800_readb, .write = PREP_io_800_writeb, },
-    { 0x0800, 0x52, 1,
-      .read = PREP_io_800_readb, .write = PREP_io_800_writeb, },
-    /* Special port to get debug messages from Open-Firmware */
-    { 0x0F00, 4, 1, .write = PPC_debug_write, },
-    PORTIO_END_OF_LIST(),
-};
-
-static PortioList prep_port_list;
 
 /*****************************************************************************/
 /* NVRAM helpers */
@@ -397,207 +217,6 @@ static int PPC_NVRAM_set_params (Nvram *nvram, uint16_t NVRAM_size,
     return 0;
 }
 
-/* PowerPC PREP hardware initialisation */
-static void ppc_prep_init(MachineState *machine)
-{
-    ram_addr_t ram_size = machine->ram_size;
-    const char *kernel_filename = machine->kernel_filename;
-    const char *kernel_cmdline = machine->kernel_cmdline;
-    const char *initrd_filename = machine->initrd_filename;
-    const char *boot_device = machine->boot_order;
-    MemoryRegion *sysmem = get_system_memory();
-    PowerPCCPU *cpu = NULL;
-    CPUPPCState *env = NULL;
-    Nvram *m48t59;
-#if 0
-    MemoryRegion *xcsr = g_new(MemoryRegion, 1);
-#endif
-    int linux_boot, i, nb_nics1;
-    MemoryRegion *ram = 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;
-    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 */
-    for (i = 0; i < machine->smp.cpus; i++) {
-        cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
-        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_allocate_system_memory(ram, NULL, "ppc_prep.ram", ram_size);
-    memory_region_add_subregion(sysmem, 0, ram);
-
-    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) {
-            error_report("could not load kernel '%s'", 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) {
-                error_report("could not load initial ram disk '%s'",
-                             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';
-        /* 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') {
-            error_report("No valid boot device for Mac99 machine");
-            exit(1);
-        }
-    }
-
-    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
-        error_report("Only 6xx bus is supported on PREP machine");
-        exit(1);
-    }
-
-    dev = qdev_create(NULL, "raven-pcihost");
-    if (bios_name == NULL) {
-        bios_name = BIOS_FILENAME;
-    }
-    qdev_prop_set_string(dev, "bios-name", bios_name);
-    qdev_prop_set_uint32(dev, "elf-machine", PPC_ELF_MACHINE);
-    qdev_prop_set_bit(dev, "is-legacy-prep", true);
-    pcihost = PCI_HOST_BRIDGE(dev);
-    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) {
-        error_report("Couldn't create PCI host controller");
-        exit(1);
-    }
-    sysctrl->contiguous_map_irq = qdev_get_gpio_in(dev, 0);
-
-    /* PCI -> ISA bridge */
-    pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), "i82378");
-    cpu = POWERPC_CPU(first_cpu);
-    qdev_connect_gpio_out(&pci->qdev, 0,
-                          cpu->env.irq_inputs[PPC6xx_INPUT_INT]);
-    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 = ISA_BUS(qdev_get_child_bus(DEVICE(pci), "isa.0"));
-
-    /* Super I/O (parallel + serial ports) */
-    isa = isa_create(isa_bus, TYPE_PC87312_SUPERIO);
-    dev = DEVICE(isa);
-    qdev_prop_set_uint8(dev, "config", 13); /* fdc, ser0, ser1, par0 */
-    qdev_init_nofail(dev);
-
-    /* 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], pci_bus, "ne2k_pci", NULL);
-        }
-    }
-
-    ide_drive_get(hd, ARRAY_SIZE(hd));
-    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]);
-    }
-
-    cpu = POWERPC_CPU(first_cpu);
-    sysctrl->reset_irq = cpu->env.irq_inputs[PPC6xx_INPUT_HRESET];
-
-    portio_list_init(&prep_port_list, NULL, prep_portio_list, sysctrl, "prep");
-    portio_list_add(&prep_port_list, isa_address_space_io(isa), 0x0);
-
-    /*
-     * PowerPC control and status register group: unimplemented,
-     * would be at address 0xFEFF0000.
-     */
-
-    if (machine_usb(machine)) {
-        pci_create_simple(pci_bus, -1, "pci-ohci");
-    }
-
-    m48t59 = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 2000, 59);
-    if (m48t59 == NULL)
-        return;
-    sysctrl->nvram = m48t59;
-
-    /* Initialise NVRAM */
-    PPC_NVRAM_set_params(m48t59, 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);
-}
-
-static void prep_machine_init(MachineClass *mc)
-{
-    mc->deprecation_reason = "use 40p machine type instead";
-    mc->desc = "PowerPC PREP platform";
-    mc->init = ppc_prep_init;
-    mc->block_default_type = IF_IDE;
-    mc->max_cpus = MAX_CPUS;
-    mc->default_boot_order = "cad";
-    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("602");
-    mc->default_display = "std";
-}
-
 static int prep_set_cmos_checksum(DeviceState *dev, void *opaque)
 {
     uint16_t checksum = *(uint16_t *)opaque;
@@ -821,4 +440,3 @@ static void ibm_40p_machine_init(MachineClass *mc)
 }
 
 DEFINE_MACHINE("40p", ibm_40p_machine_init)
-DEFINE_MACHINE("prep", prep_machine_init)
diff --git a/include/hw/ppc/ppc.h b/include/hw/ppc/ppc.h
index 4ea5436095..93e614cffd 100644
--- a/include/hw/ppc/ppc.h
+++ b/include/hw/ppc/ppc.h
@@ -68,7 +68,6 @@ clk_setup_cb ppc_40x_timers_init (CPUPPCState *env, uint32_t freq,
 void ppc40x_core_reset(PowerPCCPU *cpu);
 void ppc40x_chip_reset(PowerPCCPU *cpu);
 void ppc40x_system_reset(PowerPCCPU *cpu);
-void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val);
 
 #if defined(CONFIG_USER_ONLY)
 static inline void ppc40x_irq_init(PowerPCCPU *cpu) {}
diff --git a/pc-bios/README b/pc-bios/README
index 269d99afe0..d6d33d237f 100644
--- a/pc-bios/README
+++ b/pc-bios/README
@@ -4,9 +4,6 @@
 - The VGA BIOS and the Cirrus VGA BIOS come from the LGPL VGA bios
   project (http://www.nongnu.org/vgabios/).
 
-- The PowerPC Open Hack'Ware Open Firmware Compatible BIOS is
-  available at https://repo.or.cz/openhackware.git.
-
 - OpenBIOS (http://www.openbios.org/) is a free (GPL v2) portable
   firmware implementation. The goal is to implement a 100% IEEE
   1275-1994 (referred to as Open Firmware) compliant firmware.
diff --git a/pc-bios/ppc_rom.bin b/pc-bios/ppc_rom.bin
deleted file mode 100644
index 174a24744b..0000000000
--- a/pc-bios/ppc_rom.bin
+++ /dev/null
diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi
index 3d2a8ff54b..ea3e10bde3 100644
--- a/qemu-deprecated.texi
+++ b/qemu-deprecated.texi
@@ -270,12 +270,6 @@ machine type instead.
 These machine types are very old and likely can not be used for live migration
 from old QEMU versions anymore. A newer machine type should be used instead.
 
-@subsection prep (PowerPC) (since 3.1)
-
-This machine type uses an unmaintained firmware, broken in lots of ways,
-and unable to start post-2004 operating systems. 40p machine type should be
-used instead.
-
 @subsection spike_v1.9.1 and spike_v1.10 (since 4.1)
 
 The version specific Spike machines have been deprecated in favour of the
diff --git a/qemu-doc.texi b/qemu-doc.texi
index 2328e7ea47..b79f1c340b 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -1729,7 +1729,7 @@ differences are mentioned in the following sections.
 @section PowerPC System emulator
 @cindex system emulation (PowerPC)
 
-Use the executable @file{qemu-system-ppc} to simulate a complete PREP
+Use the executable @file{qemu-system-ppc} to simulate a complete 40P (PREP)
 or PowerMac PowerPC system.
 
 QEMU emulates the following PowerMac peripherals:
@@ -1749,7 +1749,7 @@ Non Volatile RAM
 VIA-CUDA with ADB keyboard and mouse.
 @end itemize
 
-QEMU emulates the following PREP peripherals:
+QEMU emulates the following 40P (PREP) peripherals:
 
 @itemize @minus
 @item
@@ -1761,7 +1761,7 @@ PCI VGA compatible card with VESA Bochs Extensions
 @item
 Floppy disk
 @item
-NE2000 network adapters
+PCnet network adapters
 @item
 Serial port
 @item
@@ -1770,12 +1770,9 @@ PREP Non Volatile RAM
 PC compatible keyboard and mouse.
 @end itemize
 
-QEMU uses the Open Hack'Ware Open Firmware Compatible BIOS available at
-@url{http://perso.magic.fr/l_indien/OpenHackWare/index.htm}.
-
 Since version 0.9.1, QEMU uses OpenBIOS @url{https://www.openbios.org/}
-for the g3beige and mac99 PowerMac machines. OpenBIOS is a free (GPL
-v2) portable firmware implementation. The goal is to implement a 100%
+for the g3beige and mac99 PowerMac and the 40p machines. OpenBIOS is a free
+(GPL v2) portable firmware implementation. The goal is to implement a 100%
 IEEE 1275-1994 (referred to as Open Firmware) compliant firmware.
 
 @c man begin OPTIONS
@@ -1798,8 +1795,6 @@ qemu-system-ppc -prom-env 'auto-boot?=false' \
  -prom-env 'boot-args=conf=hd:2,\yaboot.conf'
 @end example
 
-These variables are not used by Open Hack'Ware.
-
 @end table
 
 @c man end
diff --git a/roms/openhackware b/roms/openhackware
deleted file mode 160000
-Subproject c559da7c8eec5e45ef1f67978827af6f0b9546f
diff --git a/tests/qtest/boot-order-test.c b/tests/qtest/boot-order-test.c
index a725bce729..4a6218a516 100644
--- a/tests/qtest/boot-order-test.c
+++ b/tests/qtest/boot-order-test.c
@@ -108,30 +108,6 @@ static void test_pc_boot_order(void)
     test_boot_orders(NULL, read_boot_order_pc, test_cases_pc);
 }
 
-static uint8_t read_m48t59(QTestState *qts, uint64_t addr, uint16_t reg)
-{
-    qtest_writeb(qts, addr, reg & 0xff);
-    qtest_writeb(qts, addr + 1, reg >> 8);
-    return qtest_readb(qts, addr + 3);
-}
-
-static uint64_t read_boot_order_prep(QTestState *qts)
-{
-    return read_m48t59(qts, 0x80000000 + 0x74, 0x34);
-}
-
-static const boot_order_test test_cases_prep[] = {
-    { "", 'c', 'c' },
-    { "-boot c", 'c', 'c' },
-    { "-boot d", 'd', 'd' },
-    {}
-};
-
-static void test_prep_boot_order(void)
-{
-    test_boot_orders("prep", read_boot_order_prep, test_cases_prep);
-}
-
 static uint64_t read_boot_order_pmac(QTestState *qts)
 {
     QFWCFG *fw_cfg = mm_fw_cfg_init(qts, 0xf0000510);
@@ -190,7 +166,6 @@ int main(int argc, char *argv[])
     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
         qtest_add_func("boot-order/pc", test_pc_boot_order);
     } else if (strcmp(arch, "ppc") == 0 || strcmp(arch, "ppc64") == 0) {
-        qtest_add_func("boot-order/prep", test_prep_boot_order);
         qtest_add_func("boot-order/pmac_oldworld",
                        test_pmac_oldworld_boot_order);
         qtest_add_func("boot-order/pmac_newworld",
diff --git a/tests/qtest/cdrom-test.c b/tests/qtest/cdrom-test.c
index 67635e387a..833a0508a1 100644
--- a/tests/qtest/cdrom-test.c
+++ b/tests/qtest/cdrom-test.c
@@ -189,7 +189,7 @@ int main(int argc, char **argv)
         add_s390x_tests();
     } else if (g_str_equal(arch, "ppc64")) {
         const char *ppcmachines[] = {
-            "pseries", "mac99", "g3beige", "40p", "prep", NULL
+            "pseries", "mac99", "g3beige", "40p", NULL
         };
         add_cdrom_param_tests(ppcmachines);
     } else if (g_str_equal(arch, "sparc")) {
diff --git a/tests/qtest/endianness-test.c b/tests/qtest/endianness-test.c
index 58527952a5..2798802c63 100644
--- a/tests/qtest/endianness-test.c
+++ b/tests/qtest/endianness-test.c
@@ -35,7 +35,7 @@ static const TestCase test_cases[] = {
     { "mips64", "malta", 0x10000000, .bswap = true },
     { "mips64el", "fulong2e", 0x1fd00000 },
     { "ppc", "g3beige", 0xfe000000, .bswap = true, .superio = "i82378" },
-    { "ppc", "prep", 0x80000000, .bswap = true },
+    { "ppc", "40p", 0x80000000, .bswap = true },
     { "ppc", "bamboo", 0xe8000000, .bswap = true, .superio = "i82378" },
     { "ppc64", "mac99", 0xf2000000, .bswap = true, .superio = "i82378" },
     { "ppc64", "pseries", (1ULL << 45), .bswap = true, .superio = "i82378" },