diff options
Diffstat (limited to 'hw/ppc/pegasos2.c')
| -rw-r--r-- | hw/ppc/pegasos2.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c new file mode 100644 index 0000000..0bfd092 --- /dev/null +++ b/hw/ppc/pegasos2.c @@ -0,0 +1,144 @@ +/* + * QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator + * + * Copyright (c) 2018-2020 BALATON Zoltan + * + * This work is licensed under the GNU GPL license version 2 or later. + * + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "qemu/units.h" +#include "qapi/error.h" +#include "hw/hw.h" +#include "hw/ppc/ppc.h" +#include "hw/sysbus.h" +#include "hw/pci/pci_host.h" +#include "hw/irq.h" +#include "hw/pci-host/mv64361.h" +#include "hw/isa/vt82c686.h" +#include "hw/ide/pci.h" +#include "hw/i2c/smbus_eeprom.h" +#include "hw/qdev-properties.h" +#include "sysemu/reset.h" +#include "hw/boards.h" +#include "hw/loader.h" +#include "hw/fw-path-provider.h" +#include "elf.h" +#include "qemu/log.h" +#include "qemu/error-report.h" +#include "sysemu/kvm.h" +#include "kvm_ppc.h" +#include "exec/address-spaces.h" +#include "trace.h" +#include "qemu/datadir.h" +#include "sysemu/device_tree.h" + +#define PROM_FILENAME "pegasos2.rom" +#define PROM_ADDR 0xfff00000 +#define PROM_SIZE 0x80000 + +#define BUS_FREQ_HZ 133333333 + +static void pegasos2_cpu_reset(void *opaque) +{ + PowerPCCPU *cpu = opaque; + + cpu_reset(CPU(cpu)); + cpu->env.spr[SPR_HID1] = 7ULL << 28; +} + +static void pegasos2_init(MachineState *machine) +{ + PowerPCCPU *cpu = NULL; + MemoryRegion *rom = g_new(MemoryRegion, 1); + DeviceState *mv; + PCIBus *pci_bus; + PCIDevice *dev; + I2CBus *i2c_bus; + const char *fwname = machine->firmware ?: PROM_FILENAME; + char *filename; + int sz; + uint8_t *spd_data; + + /* init CPU */ + cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); + if (PPC_INPUT(&cpu->env) != PPC_FLAGS_INPUT_6xx) { + error_report("Incompatible CPU, only 6xx bus supported"); + exit(1); + } + + /* Set time-base frequency */ + cpu_ppc_tb_init(&cpu->env, BUS_FREQ_HZ / 4); + qemu_register_reset(pegasos2_cpu_reset, cpu); + + /* RAM */ + memory_region_add_subregion(get_system_memory(), 0, machine->ram); + + /* allocate and load firmware */ + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname); + if (!filename) { + error_report("Could not find firmware '%s'", fwname); + exit(1); + } + memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal); + memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom); + sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1, + PPC_ELF_MACHINE, 0, 0); + if (sz <= 0) { + sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE); + } + if (sz <= 0 || sz > PROM_SIZE) { + error_report("Could not load firmware '%s'", filename); + exit(1); + } + g_free(filename); + + /* Marvell Discovery II system controller */ + mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1, + ((qemu_irq *)cpu->env.irq_inputs)[PPC6xx_INPUT_INT])); + pci_bus = mv64361_get_pci_bus(mv, 1); + + /* VIA VT8231 South Bridge (multifunction PCI device) */ + /* VT8231 function 0: PCI-to-ISA Bridge */ + dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true, + TYPE_VT8231_ISA); + qdev_connect_gpio_out(DEVICE(dev), 0, + qdev_get_gpio_in_named(mv, "gpp", 31)); + + /* VT8231 function 1: IDE Controller */ + dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide"); + pci_ide_create_devs(dev); + + /* VT8231 function 2-3: USB Ports */ + pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci"); + pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci"); + + /* VT8231 function 4: Power Management Controller */ + dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM); + i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c")); + spd_data = spd_data_generate(DDR, machine->ram_size); + smbus_eeprom_init_one(i2c_bus, 0x57, spd_data); + + /* VT8231 function 5-6: AC97 Audio & Modem */ + pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97); + pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97); + + /* other PC hardware */ + pci_vga_init(pci_bus); +} + +static void pegasos2_machine(MachineClass *mc) +{ + mc->desc = "Genesi/bPlan Pegasos II"; + mc->init = pegasos2_init; + mc->block_default_type = IF_IDE; + mc->default_boot_order = "cd"; + mc->default_display = "std"; + mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9"); + mc->default_ram_id = "pegasos2.ram"; + mc->default_ram_size = 512 * MiB; +} + +DEFINE_MACHINE("pegasos2", pegasos2_machine) |