1 /* 2 * QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator 3 * 4 * Copyright (c) 2018-2020 BALATON Zoltan 5 * 6 * This work is licensed under the GNU GPL license version 2 or later. 7 * 8 */ 9 10 #include "qemu/osdep.h" 11 #include "qemu-common.h" 12 #include "qemu/units.h" 13 #include "qapi/error.h" 14 #include "hw/hw.h" 15 #include "hw/ppc/ppc.h" 16 #include "hw/sysbus.h" 17 #include "hw/pci/pci_host.h" 18 #include "hw/irq.h" 19 #include "hw/pci-host/mv64361.h" 20 #include "hw/isa/vt82c686.h" 21 #include "hw/ide/pci.h" 22 #include "hw/i2c/smbus_eeprom.h" 23 #include "hw/qdev-properties.h" 24 #include "sysemu/reset.h" 25 #include "hw/boards.h" 26 #include "hw/loader.h" 27 #include "hw/fw-path-provider.h" 28 #include "elf.h" 29 #include "qemu/log.h" 30 #include "qemu/error-report.h" 31 #include "sysemu/kvm.h" 32 #include "kvm_ppc.h" 33 #include "exec/address-spaces.h" 34 #include "trace.h" 35 #include "qemu/datadir.h" 36 #include "sysemu/device_tree.h" 37 38 #define PROM_FILENAME "pegasos2.rom" 39 #define PROM_ADDR 0xfff00000 40 #define PROM_SIZE 0x80000 41 42 #define BUS_FREQ_HZ 133333333 43 44 static void pegasos2_cpu_reset(void *opaque) 45 { 46 PowerPCCPU *cpu = opaque; 47 48 cpu_reset(CPU(cpu)); 49 cpu->env.spr[SPR_HID1] = 7ULL << 28; 50 } 51 52 static void pegasos2_init(MachineState *machine) 53 { 54 PowerPCCPU *cpu = NULL; 55 MemoryRegion *rom = g_new(MemoryRegion, 1); 56 DeviceState *mv; 57 PCIBus *pci_bus; 58 PCIDevice *dev; 59 I2CBus *i2c_bus; 60 const char *fwname = machine->firmware ?: PROM_FILENAME; 61 char *filename; 62 int sz; 63 uint8_t *spd_data; 64 65 /* init CPU */ 66 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 67 if (PPC_INPUT(&cpu->env) != PPC_FLAGS_INPUT_6xx) { 68 error_report("Incompatible CPU, only 6xx bus supported"); 69 exit(1); 70 } 71 72 /* Set time-base frequency */ 73 cpu_ppc_tb_init(&cpu->env, BUS_FREQ_HZ / 4); 74 qemu_register_reset(pegasos2_cpu_reset, cpu); 75 76 /* RAM */ 77 memory_region_add_subregion(get_system_memory(), 0, machine->ram); 78 79 /* allocate and load firmware */ 80 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname); 81 if (!filename) { 82 error_report("Could not find firmware '%s'", fwname); 83 exit(1); 84 } 85 memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal); 86 memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom); 87 sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1, 88 PPC_ELF_MACHINE, 0, 0); 89 if (sz <= 0) { 90 sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE); 91 } 92 if (sz <= 0 || sz > PROM_SIZE) { 93 error_report("Could not load firmware '%s'", filename); 94 exit(1); 95 } 96 g_free(filename); 97 98 /* Marvell Discovery II system controller */ 99 mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1, 100 ((qemu_irq *)cpu->env.irq_inputs)[PPC6xx_INPUT_INT])); 101 pci_bus = mv64361_get_pci_bus(mv, 1); 102 103 /* VIA VT8231 South Bridge (multifunction PCI device) */ 104 /* VT8231 function 0: PCI-to-ISA Bridge */ 105 dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true, 106 TYPE_VT8231_ISA); 107 qdev_connect_gpio_out(DEVICE(dev), 0, 108 qdev_get_gpio_in_named(mv, "gpp", 31)); 109 110 /* VT8231 function 1: IDE Controller */ 111 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide"); 112 pci_ide_create_devs(dev); 113 114 /* VT8231 function 2-3: USB Ports */ 115 pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci"); 116 pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci"); 117 118 /* VT8231 function 4: Power Management Controller */ 119 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM); 120 i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c")); 121 spd_data = spd_data_generate(DDR, machine->ram_size); 122 smbus_eeprom_init_one(i2c_bus, 0x57, spd_data); 123 124 /* VT8231 function 5-6: AC97 Audio & Modem */ 125 pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97); 126 pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97); 127 128 /* other PC hardware */ 129 pci_vga_init(pci_bus); 130 } 131 132 static void pegasos2_machine(MachineClass *mc) 133 { 134 mc->desc = "Genesi/bPlan Pegasos II"; 135 mc->init = pegasos2_init; 136 mc->block_default_type = IF_IDE; 137 mc->default_boot_order = "cd"; 138 mc->default_display = "std"; 139 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9"); 140 mc->default_ram_id = "pegasos2.ram"; 141 mc->default_ram_size = 512 * MiB; 142 } 143 144 DEFINE_MACHINE("pegasos2", pegasos2_machine) 145