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/*
* QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
*
* Copyright (c) 2018-2021 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
#define TYPE_PEGASOS2_MACHINE MACHINE_TYPE_NAME("pegasos2")
OBJECT_DECLARE_TYPE(Pegasos2MachineState, MachineClass, PEGASOS2_MACHINE)
struct Pegasos2MachineState {
MachineState parent_obj;
PowerPCCPU *cpu;
DeviceState *mv;
};
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)
{
Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
CPUPPCState *env;
MemoryRegion *rom = g_new(MemoryRegion, 1);
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 */
pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
env = &pm->cpu->env;
if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
error_report("Incompatible CPU, only 6xx bus supported");
exit(1);
}
/* Set time-base frequency */
cpu_ppc_tb_init(env, BUS_FREQ_HZ / 4);
qemu_register_reset(pegasos2_cpu_reset, pm->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 */
pm->mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1,
((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]));
pci_bus = mv64361_get_pci_bus(pm->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(pm->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_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
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;
}
static const TypeInfo pegasos2_machine_info = {
.name = TYPE_PEGASOS2_MACHINE,
.parent = TYPE_MACHINE,
.class_init = pegasos2_machine_class_init,
.instance_size = sizeof(Pegasos2MachineState),
};
static void pegasos2_machine_register_types(void)
{
type_register_static(&pegasos2_machine_info);
}
type_init(pegasos2_machine_register_types)
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