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1 | /* | |
2 | * cubieboard emulation | |
3 | * | |
4 | * Copyright (C) 2013 Li Guang | |
5 | * Written by Li Guang <lig.fnst@cn.fujitsu.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | * for more details. | |
16 | */ | |
17 | ||
18 | #include "qemu/osdep.h" | |
19 | #include "exec/address-spaces.h" | |
20 | #include "qapi/error.h" | |
21 | #include "cpu.h" | |
22 | #include "sysemu/sysemu.h" | |
23 | #include "hw/sysbus.h" | |
24 | #include "hw/boards.h" | |
25 | #include "hw/qdev-properties.h" | |
26 | #include "hw/arm/allwinner-a10.h" | |
27 | ||
28 | static struct arm_boot_info cubieboard_binfo = { | |
29 | .loader_start = AW_A10_SDRAM_BASE, | |
30 | .board_id = 0x1008, | |
31 | }; | |
32 | ||
33 | static void cubieboard_init(MachineState *machine) | |
34 | { | |
35 | AwA10State *a10; | |
36 | Error *err = NULL; | |
37 | DriveInfo *di; | |
38 | BlockBackend *blk; | |
39 | BusState *bus; | |
40 | DeviceState *carddev; | |
41 | ||
42 | /* BIOS is not supported by this board */ | |
43 | if (bios_name) { | |
44 | error_report("BIOS not supported for this machine"); | |
45 | exit(1); | |
46 | } | |
47 | ||
48 | /* This board has fixed size RAM (512MiB or 1GiB) */ | |
49 | if (machine->ram_size != 512 * MiB && | |
50 | machine->ram_size != 1 * GiB) { | |
51 | error_report("This machine can only be used with 512MiB or 1GiB RAM"); | |
52 | exit(1); | |
53 | } | |
54 | ||
55 | /* Only allow Cortex-A8 for this board */ | |
56 | if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a8")) != 0) { | |
57 | error_report("This board can only be used with cortex-a8 CPU"); | |
58 | exit(1); | |
59 | } | |
60 | ||
61 | a10 = AW_A10(object_new(TYPE_AW_A10)); | |
62 | object_property_add_child(OBJECT(machine), "soc", OBJECT(a10)); | |
63 | object_unref(OBJECT(a10)); | |
64 | ||
65 | object_property_set_int(OBJECT(&a10->emac), "phy-addr", 1, &err); | |
66 | if (err != NULL) { | |
67 | error_reportf_err(err, "Couldn't set phy address: "); | |
68 | exit(1); | |
69 | } | |
70 | ||
71 | object_property_set_int(OBJECT(&a10->timer), "clk0-freq", 32768, &err); | |
72 | if (err != NULL) { | |
73 | error_reportf_err(err, "Couldn't set clk0 frequency: "); | |
74 | exit(1); | |
75 | } | |
76 | ||
77 | object_property_set_int(OBJECT(&a10->timer), "clk1-freq", 24000000, &err); | |
78 | if (err != NULL) { | |
79 | error_reportf_err(err, "Couldn't set clk1 frequency: "); | |
80 | exit(1); | |
81 | } | |
82 | ||
83 | if (!qdev_realize(DEVICE(a10), NULL, &err)) { | |
84 | error_reportf_err(err, "Couldn't realize Allwinner A10: "); | |
85 | exit(1); | |
86 | } | |
87 | ||
88 | /* Retrieve SD bus */ | |
89 | di = drive_get_next(IF_SD); | |
90 | blk = di ? blk_by_legacy_dinfo(di) : NULL; | |
91 | bus = qdev_get_child_bus(DEVICE(a10), "sd-bus"); | |
92 | ||
93 | /* Plug in SD card */ | |
94 | carddev = qdev_new(TYPE_SD_CARD); | |
95 | qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal); | |
96 | qdev_realize_and_unref(carddev, bus, &error_fatal); | |
97 | ||
98 | memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE, | |
99 | machine->ram); | |
100 | ||
101 | /* TODO create and connect IDE devices for ide_drive_get() */ | |
102 | ||
103 | cubieboard_binfo.ram_size = machine->ram_size; | |
104 | arm_load_kernel(&a10->cpu, machine, &cubieboard_binfo); | |
105 | } | |
106 | ||
107 | static void cubieboard_machine_init(MachineClass *mc) | |
108 | { | |
109 | mc->desc = "cubietech cubieboard (Cortex-A8)"; | |
110 | mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8"); | |
111 | mc->default_ram_size = 1 * GiB; | |
112 | mc->init = cubieboard_init; | |
113 | mc->block_default_type = IF_IDE; | |
114 | mc->units_per_default_bus = 1; | |
115 | mc->ignore_memory_transaction_failures = true; | |
116 | mc->default_ram_id = "cubieboard.ram"; | |
117 | } | |
118 | ||
119 | DEFINE_MACHINE("cubieboard", cubieboard_machine_init) |