root / hw / mpc8544_guts.c @ 0dad6c35
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1 | b0fb8423 | Alexander Graf | /*
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2 | b0fb8423 | Alexander Graf | * QEMU PowerPC MPC8544 global util pseudo-device
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3 | b0fb8423 | Alexander Graf | *
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4 | b0fb8423 | Alexander Graf | * Copyright (C) 2011 Freescale Semiconductor, Inc. All rights reserved.
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5 | b0fb8423 | Alexander Graf | *
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6 | b0fb8423 | Alexander Graf | * Author: Alexander Graf, <alex@csgraf.de>
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7 | b0fb8423 | Alexander Graf | *
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8 | b0fb8423 | Alexander Graf | * This is free software; you can redistribute it and/or modify
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9 | b0fb8423 | Alexander Graf | * it under the terms of the GNU General Public License as published by
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10 | b0fb8423 | Alexander Graf | * the Free Software Foundation; either version 2 of the License, or
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11 | b0fb8423 | Alexander Graf | * (at your option) any later version.
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12 | b0fb8423 | Alexander Graf | *
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13 | b0fb8423 | Alexander Graf | * *****************************************************************
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14 | b0fb8423 | Alexander Graf | *
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15 | b0fb8423 | Alexander Graf | * The documentation for this device is noted in the MPC8544 documentation,
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16 | b0fb8423 | Alexander Graf | * file name "MPC8544ERM.pdf". You can easily find it on the web.
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17 | b0fb8423 | Alexander Graf | *
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18 | b0fb8423 | Alexander Graf | */
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19 | b0fb8423 | Alexander Graf | |
20 | b0fb8423 | Alexander Graf | #include "hw.h" |
21 | b0fb8423 | Alexander Graf | #include "sysemu.h" |
22 | b0fb8423 | Alexander Graf | #include "sysbus.h" |
23 | b0fb8423 | Alexander Graf | |
24 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_MMIO_SIZE 0x1000 |
25 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_RSTCR_RESET 0x02 |
26 | b0fb8423 | Alexander Graf | |
27 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PORPLLSR 0x00 |
28 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PORBMSR 0x04 |
29 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PORIMPSCR 0x08 |
30 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PORDEVSR 0x0C |
31 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PORDBGMSR 0x10 |
32 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PORDEVSR2 0x14 |
33 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_GPPORCR 0x20 |
34 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_GPIOCR 0x30 |
35 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_GPOUTDR 0x40 |
36 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_GPINDR 0x50 |
37 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PMUXCR 0x60 |
38 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_DEVDISR 0x70 |
39 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_POWMGTCSR 0x80 |
40 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_MCPSUMR 0x90 |
41 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_RSTRSCR 0x94 |
42 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_PVR 0xA0 |
43 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_SVR 0xA4 |
44 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_RSTCR 0xB0 |
45 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_IOVSELSR 0xC0 |
46 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_DDRCSR 0xB20 |
47 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_DDRCDR 0xB24 |
48 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_DDRCLKDR 0xB28 |
49 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_CLKOCR 0xE00 |
50 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_SRDS1CR1 0xF04 |
51 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_SRDS2CR1 0xF10 |
52 | b0fb8423 | Alexander Graf | #define MPC8544_GUTS_ADDR_SRDS2CR3 0xF18 |
53 | b0fb8423 | Alexander Graf | |
54 | b0fb8423 | Alexander Graf | struct GutsState {
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55 | b0fb8423 | Alexander Graf | SysBusDevice busdev; |
56 | 1c7af35f | Avi Kivity | MemoryRegion iomem; |
57 | b0fb8423 | Alexander Graf | }; |
58 | b0fb8423 | Alexander Graf | |
59 | b0fb8423 | Alexander Graf | typedef struct GutsState GutsState; |
60 | b0fb8423 | Alexander Graf | |
61 | 1c7af35f | Avi Kivity | static uint64_t mpc8544_guts_read(void *opaque, target_phys_addr_t addr, |
62 | 1c7af35f | Avi Kivity | unsigned size)
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63 | b0fb8423 | Alexander Graf | { |
64 | b0fb8423 | Alexander Graf | uint32_t value = 0;
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65 | b0fb8423 | Alexander Graf | CPUState *env = cpu_single_env; |
66 | b0fb8423 | Alexander Graf | |
67 | b0fb8423 | Alexander Graf | addr &= MPC8544_GUTS_MMIO_SIZE - 1;
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68 | b0fb8423 | Alexander Graf | switch (addr) {
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69 | b0fb8423 | Alexander Graf | case MPC8544_GUTS_ADDR_PVR:
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70 | b0fb8423 | Alexander Graf | value = env->spr[SPR_PVR]; |
71 | b0fb8423 | Alexander Graf | break;
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72 | b0fb8423 | Alexander Graf | case MPC8544_GUTS_ADDR_SVR:
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73 | b0fb8423 | Alexander Graf | value = env->spr[SPR_E500_SVR]; |
74 | b0fb8423 | Alexander Graf | break;
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75 | b0fb8423 | Alexander Graf | default:
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76 | b0fb8423 | Alexander Graf | fprintf(stderr, "guts: Unknown register read: %x\n", (int)addr); |
77 | b0fb8423 | Alexander Graf | break;
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78 | b0fb8423 | Alexander Graf | } |
79 | b0fb8423 | Alexander Graf | |
80 | b0fb8423 | Alexander Graf | return value;
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81 | b0fb8423 | Alexander Graf | } |
82 | b0fb8423 | Alexander Graf | |
83 | 1c7af35f | Avi Kivity | static void mpc8544_guts_write(void *opaque, target_phys_addr_t addr, |
84 | 1c7af35f | Avi Kivity | uint64_t value, unsigned size)
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85 | b0fb8423 | Alexander Graf | { |
86 | b0fb8423 | Alexander Graf | addr &= MPC8544_GUTS_MMIO_SIZE - 1;
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87 | b0fb8423 | Alexander Graf | |
88 | b0fb8423 | Alexander Graf | switch (addr) {
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89 | b0fb8423 | Alexander Graf | case MPC8544_GUTS_ADDR_RSTCR:
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90 | b0fb8423 | Alexander Graf | if (value & MPC8544_GUTS_RSTCR_RESET) {
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91 | b0fb8423 | Alexander Graf | qemu_system_reset_request(); |
92 | b0fb8423 | Alexander Graf | } |
93 | b0fb8423 | Alexander Graf | break;
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94 | b0fb8423 | Alexander Graf | default:
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95 | b0fb8423 | Alexander Graf | fprintf(stderr, "guts: Unknown register write: %x = %x\n",
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96 | 1c7af35f | Avi Kivity | (int)addr, (unsigned)value); |
97 | b0fb8423 | Alexander Graf | break;
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98 | b0fb8423 | Alexander Graf | } |
99 | b0fb8423 | Alexander Graf | } |
100 | b0fb8423 | Alexander Graf | |
101 | 1c7af35f | Avi Kivity | static const MemoryRegionOps mpc8544_guts_ops = { |
102 | 1c7af35f | Avi Kivity | .read = mpc8544_guts_read, |
103 | 1c7af35f | Avi Kivity | .write = mpc8544_guts_write, |
104 | 1c7af35f | Avi Kivity | .endianness = DEVICE_BIG_ENDIAN, |
105 | 1c7af35f | Avi Kivity | .valid = { |
106 | 1c7af35f | Avi Kivity | .min_access_size = 4,
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107 | 1c7af35f | Avi Kivity | .max_access_size = 4,
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108 | 1c7af35f | Avi Kivity | }, |
109 | b0fb8423 | Alexander Graf | }; |
110 | b0fb8423 | Alexander Graf | |
111 | b0fb8423 | Alexander Graf | static int mpc8544_guts_initfn(SysBusDevice *dev) |
112 | b0fb8423 | Alexander Graf | { |
113 | b0fb8423 | Alexander Graf | GutsState *s; |
114 | b0fb8423 | Alexander Graf | |
115 | b0fb8423 | Alexander Graf | s = FROM_SYSBUS(GutsState, sysbus_from_qdev(dev)); |
116 | b0fb8423 | Alexander Graf | |
117 | 1c7af35f | Avi Kivity | memory_region_init_io(&s->iomem, &mpc8544_guts_ops, s, |
118 | 1c7af35f | Avi Kivity | "mpc6544.guts", MPC8544_GUTS_MMIO_SIZE);
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119 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->iomem); |
120 | b0fb8423 | Alexander Graf | |
121 | b0fb8423 | Alexander Graf | return 0; |
122 | b0fb8423 | Alexander Graf | } |
123 | b0fb8423 | Alexander Graf | |
124 | 999e12bb | Anthony Liguori | static void mpc8544_guts_class_init(ObjectClass *klass, void *data) |
125 | 999e12bb | Anthony Liguori | { |
126 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
127 | 999e12bb | Anthony Liguori | |
128 | 999e12bb | Anthony Liguori | k->init = mpc8544_guts_initfn; |
129 | 999e12bb | Anthony Liguori | } |
130 | 999e12bb | Anthony Liguori | |
131 | 39bffca2 | Anthony Liguori | static TypeInfo mpc8544_guts_info = {
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132 | 39bffca2 | Anthony Liguori | .name = "mpc8544-guts",
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133 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
134 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(GutsState),
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135 | 39bffca2 | Anthony Liguori | .class_init = mpc8544_guts_class_init, |
136 | b0fb8423 | Alexander Graf | }; |
137 | b0fb8423 | Alexander Graf | |
138 | b0fb8423 | Alexander Graf | static void mpc8544_guts_register(void) |
139 | b0fb8423 | Alexander Graf | { |
140 | 39bffca2 | Anthony Liguori | type_register_static(&mpc8544_guts_info); |
141 | b0fb8423 | Alexander Graf | } |
142 | b0fb8423 | Alexander Graf | device_init(mpc8544_guts_register); |