ba7e5ac18e
Add new machine called pegasos2 emulating the Genesi/bPlan Pegasos II, a PowerPC board based on the Marvell MV64361 system controller and the VIA VT8231 integrated south bridge/superio chips. It can run Linux, AmigaOS and a wide range of MorphOS versions. Currently a firmware ROM image is needed to boot and only MorphOS has a video driver to produce graphics output. Linux could work too but distros that supported this machine don't include usual video drivers so those only run with serial console for now. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <30cbfb9cbe6f46a1e15a69a75fac45ac39340122.1616680239.git.balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
145 lines
4.4 KiB
C
145 lines
4.4 KiB
C
/*
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* QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
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*
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* Copyright (c) 2018-2020 BALATON Zoltan
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*
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* This work is licensed under the GNU GPL license version 2 or later.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qemu/units.h"
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#include "qapi/error.h"
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#include "hw/hw.h"
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#include "hw/ppc/ppc.h"
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#include "hw/sysbus.h"
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#include "hw/pci/pci_host.h"
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#include "hw/irq.h"
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#include "hw/pci-host/mv64361.h"
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#include "hw/isa/vt82c686.h"
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#include "hw/ide/pci.h"
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#include "hw/i2c/smbus_eeprom.h"
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#include "hw/qdev-properties.h"
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#include "sysemu/reset.h"
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#include "hw/boards.h"
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#include "hw/loader.h"
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#include "hw/fw-path-provider.h"
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#include "elf.h"
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#include "qemu/log.h"
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#include "qemu/error-report.h"
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#include "sysemu/kvm.h"
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#include "kvm_ppc.h"
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#include "exec/address-spaces.h"
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#include "trace.h"
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#include "qemu/datadir.h"
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#include "sysemu/device_tree.h"
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#define PROM_FILENAME "pegasos2.rom"
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#define PROM_ADDR 0xfff00000
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#define PROM_SIZE 0x80000
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#define BUS_FREQ_HZ 133333333
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static void pegasos2_cpu_reset(void *opaque)
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{
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PowerPCCPU *cpu = opaque;
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cpu_reset(CPU(cpu));
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cpu->env.spr[SPR_HID1] = 7ULL << 28;
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}
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static void pegasos2_init(MachineState *machine)
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{
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PowerPCCPU *cpu = NULL;
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MemoryRegion *rom = g_new(MemoryRegion, 1);
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DeviceState *mv;
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PCIBus *pci_bus;
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PCIDevice *dev;
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I2CBus *i2c_bus;
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const char *fwname = machine->firmware ?: PROM_FILENAME;
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char *filename;
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int sz;
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uint8_t *spd_data;
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/* init CPU */
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cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
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if (PPC_INPUT(&cpu->env) != PPC_FLAGS_INPUT_6xx) {
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error_report("Incompatible CPU, only 6xx bus supported");
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exit(1);
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}
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/* Set time-base frequency */
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cpu_ppc_tb_init(&cpu->env, BUS_FREQ_HZ / 4);
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qemu_register_reset(pegasos2_cpu_reset, cpu);
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/* RAM */
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memory_region_add_subregion(get_system_memory(), 0, machine->ram);
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/* allocate and load firmware */
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filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname);
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if (!filename) {
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error_report("Could not find firmware '%s'", fwname);
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exit(1);
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}
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memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal);
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memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom);
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sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1,
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PPC_ELF_MACHINE, 0, 0);
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if (sz <= 0) {
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sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE);
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}
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if (sz <= 0 || sz > PROM_SIZE) {
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error_report("Could not load firmware '%s'", filename);
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exit(1);
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}
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g_free(filename);
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/* Marvell Discovery II system controller */
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mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1,
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((qemu_irq *)cpu->env.irq_inputs)[PPC6xx_INPUT_INT]));
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pci_bus = mv64361_get_pci_bus(mv, 1);
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/* VIA VT8231 South Bridge (multifunction PCI device) */
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/* VT8231 function 0: PCI-to-ISA Bridge */
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dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true,
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TYPE_VT8231_ISA);
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qdev_connect_gpio_out(DEVICE(dev), 0,
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qdev_get_gpio_in_named(mv, "gpp", 31));
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/* VT8231 function 1: IDE Controller */
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dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide");
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pci_ide_create_devs(dev);
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/* VT8231 function 2-3: USB Ports */
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pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci");
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pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci");
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/* VT8231 function 4: Power Management Controller */
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dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM);
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i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c"));
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spd_data = spd_data_generate(DDR, machine->ram_size);
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smbus_eeprom_init_one(i2c_bus, 0x57, spd_data);
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/* VT8231 function 5-6: AC97 Audio & Modem */
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pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97);
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pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97);
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/* other PC hardware */
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pci_vga_init(pci_bus);
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}
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static void pegasos2_machine(MachineClass *mc)
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{
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mc->desc = "Genesi/bPlan Pegasos II";
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mc->init = pegasos2_init;
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mc->block_default_type = IF_IDE;
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mc->default_boot_order = "cd";
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mc->default_display = "std";
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mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9");
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mc->default_ram_id = "pegasos2.ram";
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mc->default_ram_size = 512 * MiB;
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}
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DEFINE_MACHINE("pegasos2", pegasos2_machine)
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