Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging
[qemu.git] / hw / ppc / pegasos2.c
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)