Add own machine state structure which will be used to store state needed for firmware emulation. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <7f6d5fbf4f70c64dba001483174a2921dd616ecd.1624811233.git.balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
169 lines
5.1 KiB
C
169 lines
5.1 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) 2018-2021 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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#define TYPE_PEGASOS2_MACHINE MACHINE_TYPE_NAME("pegasos2")
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OBJECT_DECLARE_TYPE(Pegasos2MachineState, MachineClass, PEGASOS2_MACHINE)
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struct Pegasos2MachineState {
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MachineState parent_obj;
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PowerPCCPU *cpu;
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DeviceState *mv;
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};
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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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Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
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CPUPPCState *env;
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MemoryRegion *rom = g_new(MemoryRegion, 1);
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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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pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
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env = &pm->cpu->env;
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if (PPC_INPUT(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(env, BUS_FREQ_HZ / 4);
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qemu_register_reset(pegasos2_cpu_reset, pm->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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pm->mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1,
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((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]));
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pci_bus = mv64361_get_pci_bus(pm->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(pm->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_class_init(ObjectClass *oc, void *data)
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{
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MachineClass *mc = MACHINE_CLASS(oc);
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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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static const TypeInfo pegasos2_machine_info = {
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.name = TYPE_PEGASOS2_MACHINE,
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.parent = TYPE_MACHINE,
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.class_init = pegasos2_machine_class_init,
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.instance_size = sizeof(Pegasos2MachineState),
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};
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static void pegasos2_machine_register_types(void)
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{
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type_register_static(&pegasos2_machine_info);
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}
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type_init(pegasos2_machine_register_types)
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