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20#include "qemu/osdep.h"
21#include "qemu/log.h"
22#include "trace.h"
23#include "qapi/error.h"
24#include "sysemu/sysemu.h"
25#include "hw/sysbus.h"
26#include "hw/registerfields.h"
27#include "hw/misc/iotkit-sysinfo.h"
28
29REG32(SYS_VERSION, 0x0)
30REG32(SYS_CONFIG, 0x4)
31REG32(PID4, 0xfd0)
32REG32(PID5, 0xfd4)
33REG32(PID6, 0xfd8)
34REG32(PID7, 0xfdc)
35REG32(PID0, 0xfe0)
36REG32(PID1, 0xfe4)
37REG32(PID2, 0xfe8)
38REG32(PID3, 0xfec)
39REG32(CID0, 0xff0)
40REG32(CID1, 0xff4)
41REG32(CID2, 0xff8)
42REG32(CID3, 0xffc)
43
44
45static const int sysinfo_id[] = {
46 0x04, 0x00, 0x00, 0x00,
47 0x58, 0xb8, 0x0b, 0x00,
48 0x0d, 0xf0, 0x05, 0xb1,
49};
50
51static uint64_t iotkit_sysinfo_read(void *opaque, hwaddr offset,
52 unsigned size)
53{
54 IoTKitSysInfo *s = IOTKIT_SYSINFO(opaque);
55 uint64_t r;
56
57 switch (offset) {
58 case A_SYS_VERSION:
59 r = s->sys_version;
60 break;
61
62 case A_SYS_CONFIG:
63 r = s->sys_config;
64 break;
65 case A_PID4 ... A_CID3:
66 r = sysinfo_id[(offset - A_PID4) / 4];
67 break;
68 default:
69 qemu_log_mask(LOG_GUEST_ERROR,
70 "IoTKit SysInfo read: bad offset %x\n", (int)offset);
71 r = 0;
72 break;
73 }
74 trace_iotkit_sysinfo_read(offset, r, size);
75 return r;
76}
77
78static void iotkit_sysinfo_write(void *opaque, hwaddr offset,
79 uint64_t value, unsigned size)
80{
81 trace_iotkit_sysinfo_write(offset, value, size);
82
83 qemu_log_mask(LOG_GUEST_ERROR,
84 "IoTKit SysInfo: write to RO offset 0x%x\n", (int)offset);
85}
86
87static const MemoryRegionOps iotkit_sysinfo_ops = {
88 .read = iotkit_sysinfo_read,
89 .write = iotkit_sysinfo_write,
90 .endianness = DEVICE_LITTLE_ENDIAN,
91
92 .impl.min_access_size = 4,
93 .impl.max_access_size = 4,
94 .valid.min_access_size = 1,
95 .valid.max_access_size = 4,
96};
97
98static Property iotkit_sysinfo_props[] = {
99 DEFINE_PROP_UINT32("SYS_VERSION", IoTKitSysInfo, sys_version, 0),
100 DEFINE_PROP_UINT32("SYS_CONFIG", IoTKitSysInfo, sys_config, 0),
101 DEFINE_PROP_END_OF_LIST()
102};
103
104static void iotkit_sysinfo_init(Object *obj)
105{
106 SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
107 IoTKitSysInfo *s = IOTKIT_SYSINFO(obj);
108
109 memory_region_init_io(&s->iomem, obj, &iotkit_sysinfo_ops,
110 s, "iotkit-sysinfo", 0x1000);
111 sysbus_init_mmio(sbd, &s->iomem);
112}
113
114static void iotkit_sysinfo_class_init(ObjectClass *klass, void *data)
115{
116 DeviceClass *dc = DEVICE_CLASS(klass);
117
118
119
120
121
122
123 dc->props = iotkit_sysinfo_props;
124}
125
126static const TypeInfo iotkit_sysinfo_info = {
127 .name = TYPE_IOTKIT_SYSINFO,
128 .parent = TYPE_SYS_BUS_DEVICE,
129 .instance_size = sizeof(IoTKitSysInfo),
130 .instance_init = iotkit_sysinfo_init,
131 .class_init = iotkit_sysinfo_class_init,
132};
133
134static void iotkit_sysinfo_register_types(void)
135{
136 type_register_static(&iotkit_sysinfo_info);
137}
138
139type_init(iotkit_sysinfo_register_types);
140