machine: Conversion of QEMUMachineInitArgs to MachineState
[qemu/ar7.git] / hw / unicore32 / puv3.c
blob08dd4d04cb2536f27e559eeb07aa50d6a1e045a0
1 /*
2 * Generic PKUnity SoC machine and board descriptor
4 * Copyright (C) 2010-2012 Guan Xuetao
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation, or any later version.
9 * See the COPYING file in the top-level directory.
12 #include "qemu-common.h"
13 #include "ui/console.h"
14 #include "elf.h"
15 #include "exec/address-spaces.h"
16 #include "hw/sysbus.h"
17 #include "hw/boards.h"
18 #include "hw/loader.h"
19 #include "hw/i386/pc.h"
20 #include "sysemu/qtest.h"
22 #undef DEBUG_PUV3
23 #include "hw/unicore32/puv3.h"
25 #define KERNEL_LOAD_ADDR 0x03000000
26 #define KERNEL_MAX_SIZE 0x00800000 /* Just a guess */
28 static void puv3_intc_cpu_handler(void *opaque, int irq, int level)
30 UniCore32CPU *cpu = opaque;
31 CPUState *cs = CPU(cpu);
33 assert(irq == 0);
34 if (level) {
35 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
36 } else {
37 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
41 static void puv3_soc_init(CPUUniCore32State *env)
43 qemu_irq *cpu_intc, irqs[PUV3_IRQS_NR];
44 DeviceState *dev;
45 MemoryRegion *i8042 = g_new(MemoryRegion, 1);
46 int i;
48 /* Initialize interrupt controller */
49 cpu_intc = qemu_allocate_irqs(puv3_intc_cpu_handler,
50 uc32_env_get_cpu(env), 1);
51 dev = sysbus_create_simple("puv3_intc", PUV3_INTC_BASE, *cpu_intc);
52 for (i = 0; i < PUV3_IRQS_NR; i++) {
53 irqs[i] = qdev_get_gpio_in(dev, i);
56 /* Initialize minimal necessary devices for kernel booting */
57 sysbus_create_simple("puv3_pm", PUV3_PM_BASE, NULL);
58 sysbus_create_simple("puv3_dma", PUV3_DMA_BASE, NULL);
59 sysbus_create_simple("puv3_ost", PUV3_OST_BASE, irqs[PUV3_IRQS_OST0]);
60 sysbus_create_varargs("puv3_gpio", PUV3_GPIO_BASE,
61 irqs[PUV3_IRQS_GPIOLOW0], irqs[PUV3_IRQS_GPIOLOW1],
62 irqs[PUV3_IRQS_GPIOLOW2], irqs[PUV3_IRQS_GPIOLOW3],
63 irqs[PUV3_IRQS_GPIOLOW4], irqs[PUV3_IRQS_GPIOLOW5],
64 irqs[PUV3_IRQS_GPIOLOW6], irqs[PUV3_IRQS_GPIOLOW7],
65 irqs[PUV3_IRQS_GPIOHIGH], NULL);
67 /* Keyboard (i8042), mouse disabled for nographic */
68 i8042_mm_init(irqs[PUV3_IRQS_PS2_KBD], NULL, i8042, PUV3_REGS_OFFSET, 4);
69 memory_region_add_subregion(get_system_memory(), PUV3_PS2_BASE, i8042);
72 static void puv3_board_init(CPUUniCore32State *env, ram_addr_t ram_size)
74 MemoryRegion *ram_memory = g_new(MemoryRegion, 1);
76 /* SDRAM at address zero. */
77 memory_region_init_ram(ram_memory, NULL, "puv3.ram", ram_size);
78 vmstate_register_ram_global(ram_memory);
79 memory_region_add_subregion(get_system_memory(), 0, ram_memory);
82 static const GraphicHwOps no_ops;
84 static void puv3_load_kernel(const char *kernel_filename)
86 int size;
88 if (kernel_filename == NULL && qtest_enabled()) {
89 return;
91 assert(kernel_filename != NULL);
93 /* only zImage format supported */
94 size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
95 KERNEL_MAX_SIZE);
96 if (size < 0) {
97 hw_error("Load kernel error: '%s'\n", kernel_filename);
100 /* cheat curses that we have a graphic console, only under ocd console */
101 graphic_console_init(NULL, 0, &no_ops, NULL);
104 static void puv3_init(MachineState *machine)
106 ram_addr_t ram_size = machine->ram_size;
107 const char *cpu_model = machine->cpu_model;
108 const char *kernel_filename = machine->kernel_filename;
109 const char *initrd_filename = machine->initrd_filename;
110 CPUUniCore32State *env;
112 if (initrd_filename) {
113 hw_error("Please use kernel built-in initramdisk.\n");
116 if (!cpu_model) {
117 cpu_model = "UniCore-II";
120 env = cpu_init(cpu_model);
121 if (!env) {
122 hw_error("Unable to find CPU definition\n");
125 puv3_soc_init(env);
126 puv3_board_init(env, ram_size);
127 puv3_load_kernel(kernel_filename);
130 static QEMUMachine puv3_machine = {
131 .name = "puv3",
132 .desc = "PKUnity Version-3 based on UniCore32",
133 .init = puv3_init,
134 .is_default = 1,
137 static void puv3_machine_init(void)
139 qemu_register_machine(&puv3_machine);
142 machine_init(puv3_machine_init)