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fbbdf983 GX |
1 | /* |
2 | * Generic PKUnity SoC machine and board descriptor | |
3 | * | |
4 | * Copyright (C) 2010-2012 Guan Xuetao | |
5 | * | |
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. | |
10 | */ | |
077805fa PB |
11 | |
12 | #include "qemu-common.h" | |
28ecbaee | 13 | #include "ui/console.h" |
fbbdf983 | 14 | #include "elf.h" |
022c62cb | 15 | #include "exec/address-spaces.h" |
83c9f4ca PB |
16 | #include "hw/sysbus.h" |
17 | #include "hw/boards.h" | |
18 | #include "hw/loader.h" | |
0d09e41a | 19 | #include "hw/i386/pc.h" |
fbbdf983 GX |
20 | |
21 | #undef DEBUG_PUV3 | |
0d09e41a | 22 | #include "hw/unicore32/puv3.h" |
fbbdf983 GX |
23 | |
24 | #define KERNEL_LOAD_ADDR 0x03000000 | |
25 | #define KERNEL_MAX_SIZE 0x00800000 /* Just a guess */ | |
26 | ||
5c8556a6 GX |
27 | static void puv3_intc_cpu_handler(void *opaque, int irq, int level) |
28 | { | |
d8ed887b | 29 | UniCore32CPU *cpu = opaque; |
d8ed887b | 30 | CPUState *cs = CPU(cpu); |
5c8556a6 GX |
31 | |
32 | assert(irq == 0); | |
33 | if (level) { | |
c3affe56 | 34 | cpu_interrupt(cs, CPU_INTERRUPT_HARD); |
5c8556a6 | 35 | } else { |
d8ed887b | 36 | cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD); |
5c8556a6 GX |
37 | } |
38 | } | |
39 | ||
fbbdf983 GX |
40 | static void puv3_soc_init(CPUUniCore32State *env) |
41 | { | |
5c8556a6 GX |
42 | qemu_irq *cpu_intc, irqs[PUV3_IRQS_NR]; |
43 | DeviceState *dev; | |
79683f61 | 44 | MemoryRegion *i8042 = g_new(MemoryRegion, 1); |
5c8556a6 GX |
45 | int i; |
46 | ||
47 | /* Initialize interrupt controller */ | |
d8ed887b AF |
48 | cpu_intc = qemu_allocate_irqs(puv3_intc_cpu_handler, |
49 | uc32_env_get_cpu(env), 1); | |
5c8556a6 GX |
50 | dev = sysbus_create_simple("puv3_intc", PUV3_INTC_BASE, *cpu_intc); |
51 | for (i = 0; i < PUV3_IRQS_NR; i++) { | |
52 | irqs[i] = qdev_get_gpio_in(dev, i); | |
53 | } | |
56d07a90 GX |
54 | |
55 | /* Initialize minimal necessary devices for kernel booting */ | |
f716c197 | 56 | sysbus_create_simple("puv3_pm", PUV3_PM_BASE, NULL); |
1ea34899 | 57 | sysbus_create_simple("puv3_dma", PUV3_DMA_BASE, NULL); |
56d07a90 | 58 | sysbus_create_simple("puv3_ost", PUV3_OST_BASE, irqs[PUV3_IRQS_OST0]); |
a89d01c1 GX |
59 | sysbus_create_varargs("puv3_gpio", PUV3_GPIO_BASE, |
60 | irqs[PUV3_IRQS_GPIOLOW0], irqs[PUV3_IRQS_GPIOLOW1], | |
61 | irqs[PUV3_IRQS_GPIOLOW2], irqs[PUV3_IRQS_GPIOLOW3], | |
62 | irqs[PUV3_IRQS_GPIOLOW4], irqs[PUV3_IRQS_GPIOLOW5], | |
63 | irqs[PUV3_IRQS_GPIOLOW6], irqs[PUV3_IRQS_GPIOLOW7], | |
64 | irqs[PUV3_IRQS_GPIOHIGH], NULL); | |
79683f61 GX |
65 | |
66 | /* Keyboard (i8042), mouse disabled for nographic */ | |
67 | i8042_mm_init(irqs[PUV3_IRQS_PS2_KBD], NULL, i8042, PUV3_REGS_OFFSET, 4); | |
68 | memory_region_add_subregion(get_system_memory(), PUV3_PS2_BASE, i8042); | |
fbbdf983 GX |
69 | } |
70 | ||
71 | static void puv3_board_init(CPUUniCore32State *env, ram_addr_t ram_size) | |
72 | { | |
73 | MemoryRegion *ram_memory = g_new(MemoryRegion, 1); | |
74 | ||
75 | /* SDRAM at address zero. */ | |
2c9b15ca | 76 | memory_region_init_ram(ram_memory, NULL, "puv3.ram", ram_size); |
fbbdf983 GX |
77 | vmstate_register_ram_global(ram_memory); |
78 | memory_region_add_subregion(get_system_memory(), 0, ram_memory); | |
79 | } | |
80 | ||
380cd056 GH |
81 | static const GraphicHwOps no_ops; |
82 | ||
fbbdf983 GX |
83 | static void puv3_load_kernel(const char *kernel_filename) |
84 | { | |
85 | int size; | |
86 | ||
87 | assert(kernel_filename != NULL); | |
88 | ||
89 | /* only zImage format supported */ | |
90 | size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR, | |
91 | KERNEL_MAX_SIZE); | |
92 | if (size < 0) { | |
93 | hw_error("Load kernel error: '%s'\n", kernel_filename); | |
94 | } | |
95 | ||
96 | /* cheat curses that we have a graphic console, only under ocd console */ | |
aa2beaa1 | 97 | graphic_console_init(NULL, &no_ops, NULL); |
fbbdf983 GX |
98 | } |
99 | ||
5f072e1f | 100 | static void puv3_init(QEMUMachineInitArgs *args) |
fbbdf983 | 101 | { |
5f072e1f EH |
102 | ram_addr_t ram_size = args->ram_size; |
103 | const char *cpu_model = args->cpu_model; | |
104 | const char *kernel_filename = args->kernel_filename; | |
105 | const char *initrd_filename = args->initrd_filename; | |
fbbdf983 GX |
106 | CPUUniCore32State *env; |
107 | ||
108 | if (initrd_filename) { | |
109 | hw_error("Please use kernel built-in initramdisk.\n"); | |
110 | } | |
111 | ||
112 | if (!cpu_model) { | |
113 | cpu_model = "UniCore-II"; | |
114 | } | |
115 | ||
116 | env = cpu_init(cpu_model); | |
117 | if (!env) { | |
118 | hw_error("Unable to find CPU definition\n"); | |
119 | } | |
120 | ||
121 | puv3_soc_init(env); | |
122 | puv3_board_init(env, ram_size); | |
123 | puv3_load_kernel(kernel_filename); | |
124 | } | |
125 | ||
126 | static QEMUMachine puv3_machine = { | |
127 | .name = "puv3", | |
128 | .desc = "PKUnity Version-3 based on UniCore32", | |
129 | .init = puv3_init, | |
220c2147 | 130 | .is_default = 1, |
e4ada29e | 131 | DEFAULT_MACHINE_OPTIONS, |
fbbdf983 GX |
132 | }; |
133 | ||
134 | static void puv3_machine_init(void) | |
135 | { | |
136 | qemu_register_machine(&puv3_machine); | |
137 | } | |
138 | ||
139 | machine_init(puv3_machine_init) |