root / hw / mpc8544_guts.c @ b0fb8423
History | View | Annotate | Download (3.7 kB)
1 |
/*
|
---|---|
2 |
* QEMU PowerPC MPC8544 global util pseudo-device
|
3 |
*
|
4 |
* Copyright (C) 2011 Freescale Semiconductor, Inc. All rights reserved.
|
5 |
*
|
6 |
* Author: Alexander Graf, <alex@csgraf.de>
|
7 |
*
|
8 |
* This is free software; you can redistribute it and/or modify
|
9 |
* it under the terms of the GNU General Public License as published by
|
10 |
* the Free Software Foundation; either version 2 of the License, or
|
11 |
* (at your option) any later version.
|
12 |
*
|
13 |
* *****************************************************************
|
14 |
*
|
15 |
* The documentation for this device is noted in the MPC8544 documentation,
|
16 |
* file name "MPC8544ERM.pdf". You can easily find it on the web.
|
17 |
*
|
18 |
*/
|
19 |
|
20 |
#include "hw.h" |
21 |
#include "sysemu.h" |
22 |
#include "sysbus.h" |
23 |
|
24 |
#define MPC8544_GUTS_MMIO_SIZE 0x1000 |
25 |
#define MPC8544_GUTS_RSTCR_RESET 0x02 |
26 |
|
27 |
#define MPC8544_GUTS_ADDR_PORPLLSR 0x00 |
28 |
#define MPC8544_GUTS_ADDR_PORBMSR 0x04 |
29 |
#define MPC8544_GUTS_ADDR_PORIMPSCR 0x08 |
30 |
#define MPC8544_GUTS_ADDR_PORDEVSR 0x0C |
31 |
#define MPC8544_GUTS_ADDR_PORDBGMSR 0x10 |
32 |
#define MPC8544_GUTS_ADDR_PORDEVSR2 0x14 |
33 |
#define MPC8544_GUTS_ADDR_GPPORCR 0x20 |
34 |
#define MPC8544_GUTS_ADDR_GPIOCR 0x30 |
35 |
#define MPC8544_GUTS_ADDR_GPOUTDR 0x40 |
36 |
#define MPC8544_GUTS_ADDR_GPINDR 0x50 |
37 |
#define MPC8544_GUTS_ADDR_PMUXCR 0x60 |
38 |
#define MPC8544_GUTS_ADDR_DEVDISR 0x70 |
39 |
#define MPC8544_GUTS_ADDR_POWMGTCSR 0x80 |
40 |
#define MPC8544_GUTS_ADDR_MCPSUMR 0x90 |
41 |
#define MPC8544_GUTS_ADDR_RSTRSCR 0x94 |
42 |
#define MPC8544_GUTS_ADDR_PVR 0xA0 |
43 |
#define MPC8544_GUTS_ADDR_SVR 0xA4 |
44 |
#define MPC8544_GUTS_ADDR_RSTCR 0xB0 |
45 |
#define MPC8544_GUTS_ADDR_IOVSELSR 0xC0 |
46 |
#define MPC8544_GUTS_ADDR_DDRCSR 0xB20 |
47 |
#define MPC8544_GUTS_ADDR_DDRCDR 0xB24 |
48 |
#define MPC8544_GUTS_ADDR_DDRCLKDR 0xB28 |
49 |
#define MPC8544_GUTS_ADDR_CLKOCR 0xE00 |
50 |
#define MPC8544_GUTS_ADDR_SRDS1CR1 0xF04 |
51 |
#define MPC8544_GUTS_ADDR_SRDS2CR1 0xF10 |
52 |
#define MPC8544_GUTS_ADDR_SRDS2CR3 0xF18 |
53 |
|
54 |
struct GutsState {
|
55 |
SysBusDevice busdev; |
56 |
}; |
57 |
|
58 |
typedef struct GutsState GutsState; |
59 |
|
60 |
static uint32_t mpc8544_guts_read32(void *opaque, target_phys_addr_t addr) |
61 |
{ |
62 |
uint32_t value = 0;
|
63 |
CPUState *env = cpu_single_env; |
64 |
|
65 |
addr &= MPC8544_GUTS_MMIO_SIZE - 1;
|
66 |
switch (addr) {
|
67 |
case MPC8544_GUTS_ADDR_PVR:
|
68 |
value = env->spr[SPR_PVR]; |
69 |
break;
|
70 |
case MPC8544_GUTS_ADDR_SVR:
|
71 |
value = env->spr[SPR_E500_SVR]; |
72 |
break;
|
73 |
default:
|
74 |
fprintf(stderr, "guts: Unknown register read: %x\n", (int)addr); |
75 |
break;
|
76 |
} |
77 |
|
78 |
return value;
|
79 |
} |
80 |
|
81 |
static CPUReadMemoryFunc * const mpc8544_guts_read[] = { |
82 |
NULL,
|
83 |
NULL,
|
84 |
&mpc8544_guts_read32, |
85 |
}; |
86 |
|
87 |
static void mpc8544_guts_write32(void *opaque, target_phys_addr_t addr, |
88 |
uint32_t value) |
89 |
{ |
90 |
addr &= MPC8544_GUTS_MMIO_SIZE - 1;
|
91 |
|
92 |
switch (addr) {
|
93 |
case MPC8544_GUTS_ADDR_RSTCR:
|
94 |
if (value & MPC8544_GUTS_RSTCR_RESET) {
|
95 |
qemu_system_reset_request(); |
96 |
} |
97 |
break;
|
98 |
default:
|
99 |
fprintf(stderr, "guts: Unknown register write: %x = %x\n",
|
100 |
(int)addr, value);
|
101 |
break;
|
102 |
} |
103 |
} |
104 |
|
105 |
static CPUWriteMemoryFunc * const mpc8544_guts_write[] = { |
106 |
NULL,
|
107 |
NULL,
|
108 |
&mpc8544_guts_write32, |
109 |
}; |
110 |
|
111 |
static int mpc8544_guts_initfn(SysBusDevice *dev) |
112 |
{ |
113 |
GutsState *s; |
114 |
int iomem;
|
115 |
|
116 |
s = FROM_SYSBUS(GutsState, sysbus_from_qdev(dev)); |
117 |
|
118 |
iomem = cpu_register_io_memory(mpc8544_guts_read, mpc8544_guts_write, s, |
119 |
DEVICE_BIG_ENDIAN); |
120 |
sysbus_init_mmio(dev, MPC8544_GUTS_MMIO_SIZE, iomem); |
121 |
|
122 |
return 0; |
123 |
} |
124 |
|
125 |
static SysBusDeviceInfo mpc8544_guts_info = {
|
126 |
.init = mpc8544_guts_initfn, |
127 |
.qdev.name = "mpc8544-guts",
|
128 |
.qdev.size = sizeof(GutsState),
|
129 |
}; |
130 |
|
131 |
static void mpc8544_guts_register(void) |
132 |
{ |
133 |
sysbus_register_withprop(&mpc8544_guts_info); |
134 |
} |
135 |
device_init(mpc8544_guts_register); |