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1 | 5bc95aa2 | Dmitry Eremin-Solenikov | /*
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2 | 5bc95aa2 | Dmitry Eremin-Solenikov | * StrongARM SA-1100/SA-1110 emulation
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3 | 5bc95aa2 | Dmitry Eremin-Solenikov | *
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4 | 5bc95aa2 | Dmitry Eremin-Solenikov | * Copyright (C) 2011 Dmitry Eremin-Solenikov
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5 | 5bc95aa2 | Dmitry Eremin-Solenikov | *
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6 | 5bc95aa2 | Dmitry Eremin-Solenikov | * Largely based on StrongARM emulation:
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7 | 5bc95aa2 | Dmitry Eremin-Solenikov | * Copyright (c) 2006 Openedhand Ltd.
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8 | 5bc95aa2 | Dmitry Eremin-Solenikov | * Written by Andrzej Zaborowski <balrog@zabor.org>
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9 | 5bc95aa2 | Dmitry Eremin-Solenikov | *
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10 | 5bc95aa2 | Dmitry Eremin-Solenikov | * UART code based on QEMU 16550A UART emulation
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11 | 5bc95aa2 | Dmitry Eremin-Solenikov | * Copyright (c) 2003-2004 Fabrice Bellard
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12 | 5bc95aa2 | Dmitry Eremin-Solenikov | * Copyright (c) 2008 Citrix Systems, Inc.
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13 | 5bc95aa2 | Dmitry Eremin-Solenikov | *
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14 | 5bc95aa2 | Dmitry Eremin-Solenikov | * This program is free software; you can redistribute it and/or modify
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15 | 5bc95aa2 | Dmitry Eremin-Solenikov | * it under the terms of the GNU General Public License version 2 as
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16 | 5bc95aa2 | Dmitry Eremin-Solenikov | * published by the Free Software Foundation.
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17 | 5bc95aa2 | Dmitry Eremin-Solenikov | *
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18 | 5bc95aa2 | Dmitry Eremin-Solenikov | * This program is distributed in the hope that it will be useful,
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19 | 5bc95aa2 | Dmitry Eremin-Solenikov | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 | 5bc95aa2 | Dmitry Eremin-Solenikov | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 | 5bc95aa2 | Dmitry Eremin-Solenikov | * GNU General Public License for more details.
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22 | 5bc95aa2 | Dmitry Eremin-Solenikov | *
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23 | 5bc95aa2 | Dmitry Eremin-Solenikov | * You should have received a copy of the GNU General Public License along
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24 | 5bc95aa2 | Dmitry Eremin-Solenikov | * with this program; if not, see <http://www.gnu.org/licenses/>.
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25 | 6b620ca3 | Paolo Bonzini | *
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26 | 6b620ca3 | Paolo Bonzini | * Contributions after 2012-01-13 are licensed under the terms of the
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27 | 6b620ca3 | Paolo Bonzini | * GNU GPL, version 2 or (at your option) any later version.
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28 | 5bc95aa2 | Dmitry Eremin-Solenikov | */
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29 | 5bc95aa2 | Dmitry Eremin-Solenikov | #include "sysbus.h" |
30 | 5bc95aa2 | Dmitry Eremin-Solenikov | #include "strongarm.h" |
31 | 5bc95aa2 | Dmitry Eremin-Solenikov | #include "qemu-error.h" |
32 | 5bc95aa2 | Dmitry Eremin-Solenikov | #include "arm-misc.h" |
33 | 5bc95aa2 | Dmitry Eremin-Solenikov | #include "sysemu.h" |
34 | 5bc95aa2 | Dmitry Eremin-Solenikov | #include "ssi.h" |
35 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
36 | 5bc95aa2 | Dmitry Eremin-Solenikov | //#define DEBUG
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37 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
38 | 5bc95aa2 | Dmitry Eremin-Solenikov | /*
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39 | 5bc95aa2 | Dmitry Eremin-Solenikov | TODO
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40 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Implement cp15, c14 ?
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41 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Implement cp15, c15 !!! (idle used in L)
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42 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Implement idle mode handling/DIM
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43 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Implement sleep mode/Wake sources
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44 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Implement reset control
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45 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Implement memory control regs
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46 | 5bc95aa2 | Dmitry Eremin-Solenikov | - PCMCIA handling
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47 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Maybe support MBGNT/MBREQ
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48 | 5bc95aa2 | Dmitry Eremin-Solenikov | - DMA channels
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49 | 5bc95aa2 | Dmitry Eremin-Solenikov | - GPCLK
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50 | 5bc95aa2 | Dmitry Eremin-Solenikov | - IrDA
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51 | 5bc95aa2 | Dmitry Eremin-Solenikov | - MCP
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52 | 5bc95aa2 | Dmitry Eremin-Solenikov | - Enhance UART with modem signals
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53 | 5bc95aa2 | Dmitry Eremin-Solenikov | */
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54 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
55 | 5bc95aa2 | Dmitry Eremin-Solenikov | #ifdef DEBUG
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56 | 5bc95aa2 | Dmitry Eremin-Solenikov | # define DPRINTF(format, ...) printf(format , ## __VA_ARGS__) |
57 | 5bc95aa2 | Dmitry Eremin-Solenikov | #else
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58 | 5bc95aa2 | Dmitry Eremin-Solenikov | # define DPRINTF(format, ...) do { } while (0) |
59 | 5bc95aa2 | Dmitry Eremin-Solenikov | #endif
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60 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
61 | 5bc95aa2 | Dmitry Eremin-Solenikov | static struct { |
62 | a8170e5e | Avi Kivity | hwaddr io_base; |
63 | 5bc95aa2 | Dmitry Eremin-Solenikov | int irq;
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64 | 5bc95aa2 | Dmitry Eremin-Solenikov | } sa_serial[] = { |
65 | 5bc95aa2 | Dmitry Eremin-Solenikov | { 0x80010000, SA_PIC_UART1 },
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66 | 5bc95aa2 | Dmitry Eremin-Solenikov | { 0x80030000, SA_PIC_UART2 },
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67 | 5bc95aa2 | Dmitry Eremin-Solenikov | { 0x80050000, SA_PIC_UART3 },
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68 | 5bc95aa2 | Dmitry Eremin-Solenikov | { 0, 0 } |
69 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
70 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
71 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Interrupt Controller */
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72 | 5bc95aa2 | Dmitry Eremin-Solenikov | typedef struct { |
73 | 5bc95aa2 | Dmitry Eremin-Solenikov | SysBusDevice busdev; |
74 | eb2fefbc | Avi Kivity | MemoryRegion iomem; |
75 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq irq; |
76 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq fiq; |
77 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
78 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t pending; |
79 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t enabled; |
80 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t is_fiq; |
81 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t int_idle; |
82 | 5bc95aa2 | Dmitry Eremin-Solenikov | } StrongARMPICState; |
83 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
84 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define ICIP 0x00 |
85 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define ICMR 0x04 |
86 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define ICLR 0x08 |
87 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define ICFP 0x10 |
88 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define ICPR 0x20 |
89 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define ICCR 0x0c |
90 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
91 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SA_PIC_SRCS 32 |
92 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
93 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
94 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_pic_update(void *opaque) |
95 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
96 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPICState *s = opaque; |
97 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
98 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* FIXME: reflect DIM */
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99 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->fiq, s->pending & s->enabled & s->is_fiq); |
100 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->irq, s->pending & s->enabled & ~s->is_fiq); |
101 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
102 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
103 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_pic_set_irq(void *opaque, int irq, int level) |
104 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
105 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPICState *s = opaque; |
106 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
107 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (level) {
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108 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->pending |= 1 << irq;
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109 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
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110 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->pending &= ~(1 << irq);
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111 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
112 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
113 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_pic_update(s); |
114 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
115 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
116 | a8170e5e | Avi Kivity | static uint64_t strongarm_pic_mem_read(void *opaque, hwaddr offset, |
117 | eb2fefbc | Avi Kivity | unsigned size)
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118 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
119 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPICState *s = opaque; |
120 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
121 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (offset) {
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122 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICIP:
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123 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->pending & ~s->is_fiq & s->enabled;
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124 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICMR:
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125 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->enabled;
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126 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICLR:
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127 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->is_fiq;
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128 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICCR:
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129 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->int_idle == 0; |
130 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICFP:
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131 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->pending & s->is_fiq & s->enabled;
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132 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICPR:
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133 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->pending;
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134 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
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135 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register offset 0x" TARGET_FMT_plx "\n", |
136 | 5bc95aa2 | Dmitry Eremin-Solenikov | __func__, offset); |
137 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
138 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
139 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
140 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
141 | a8170e5e | Avi Kivity | static void strongarm_pic_mem_write(void *opaque, hwaddr offset, |
142 | eb2fefbc | Avi Kivity | uint64_t value, unsigned size)
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143 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
144 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPICState *s = opaque; |
145 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
146 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (offset) {
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147 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICMR:
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148 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->enabled = value; |
149 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
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150 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICLR:
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151 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->is_fiq = value; |
152 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
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153 | 5bc95aa2 | Dmitry Eremin-Solenikov | case ICCR:
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154 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->int_idle = (value & 1) ? 0 : ~0; |
155 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
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156 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
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157 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register offset 0x" TARGET_FMT_plx "\n", |
158 | 5bc95aa2 | Dmitry Eremin-Solenikov | __func__, offset); |
159 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
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160 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
161 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_pic_update(s); |
162 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
163 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
164 | eb2fefbc | Avi Kivity | static const MemoryRegionOps strongarm_pic_ops = { |
165 | eb2fefbc | Avi Kivity | .read = strongarm_pic_mem_read, |
166 | eb2fefbc | Avi Kivity | .write = strongarm_pic_mem_write, |
167 | eb2fefbc | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
168 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
169 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
170 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_pic_initfn(SysBusDevice *dev) |
171 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
172 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPICState *s = FROM_SYSBUS(StrongARMPICState, dev); |
173 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
174 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_init_gpio_in(&dev->qdev, strongarm_pic_set_irq, SA_PIC_SRCS); |
175 | eb2fefbc | Avi Kivity | memory_region_init_io(&s->iomem, &strongarm_pic_ops, s, "pic", 0x1000); |
176 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->iomem); |
177 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->irq); |
178 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->fiq); |
179 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
180 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
181 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
182 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
183 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_pic_post_load(void *opaque, int version_id) |
184 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
185 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_pic_update(opaque); |
186 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
187 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
188 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
189 | 5bc95aa2 | Dmitry Eremin-Solenikov | static VMStateDescription vmstate_strongarm_pic_regs = {
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190 | 5bc95aa2 | Dmitry Eremin-Solenikov | .name = "strongarm_pic",
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191 | 5bc95aa2 | Dmitry Eremin-Solenikov | .version_id = 0,
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192 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id = 0,
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193 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id_old = 0,
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194 | 5bc95aa2 | Dmitry Eremin-Solenikov | .post_load = strongarm_pic_post_load, |
195 | 5bc95aa2 | Dmitry Eremin-Solenikov | .fields = (VMStateField[]) { |
196 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(pending, StrongARMPICState), |
197 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(enabled, StrongARMPICState), |
198 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(is_fiq, StrongARMPICState), |
199 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(int_idle, StrongARMPICState), |
200 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_END_OF_LIST(), |
201 | 5bc95aa2 | Dmitry Eremin-Solenikov | }, |
202 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
203 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
204 | 999e12bb | Anthony Liguori | static void strongarm_pic_class_init(ObjectClass *klass, void *data) |
205 | 999e12bb | Anthony Liguori | { |
206 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
207 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
208 | 999e12bb | Anthony Liguori | |
209 | 999e12bb | Anthony Liguori | k->init = strongarm_pic_initfn; |
210 | 39bffca2 | Anthony Liguori | dc->desc = "StrongARM PIC";
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211 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_strongarm_pic_regs; |
212 | 999e12bb | Anthony Liguori | } |
213 | 999e12bb | Anthony Liguori | |
214 | 39bffca2 | Anthony Liguori | static TypeInfo strongarm_pic_info = {
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215 | 39bffca2 | Anthony Liguori | .name = "strongarm_pic",
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216 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
217 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(StrongARMPICState),
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218 | 39bffca2 | Anthony Liguori | .class_init = strongarm_pic_class_init, |
219 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
220 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
221 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Real-Time Clock */
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222 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RTAR 0x00 /* RTC Alarm register */ |
223 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RCNR 0x04 /* RTC Counter register */ |
224 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RTTR 0x08 /* RTC Timer Trim register */ |
225 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RTSR 0x10 /* RTC Status register */ |
226 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
227 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RTSR_AL (1 << 0) /* RTC Alarm detected */ |
228 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RTSR_HZ (1 << 1) /* RTC 1Hz detected */ |
229 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RTSR_ALE (1 << 2) /* RTC Alarm enable */ |
230 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RTSR_HZE (1 << 3) /* RTC 1Hz enable */ |
231 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
232 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* 16 LSB of RTTR are clockdiv for internal trim logic,
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233 | 5bc95aa2 | Dmitry Eremin-Solenikov | * trim delete isn't emulated, so
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234 | 5bc95aa2 | Dmitry Eremin-Solenikov | * f = 32 768 / (RTTR_trim + 1) */
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235 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
236 | 5bc95aa2 | Dmitry Eremin-Solenikov | typedef struct { |
237 | 5bc95aa2 | Dmitry Eremin-Solenikov | SysBusDevice busdev; |
238 | eb2fefbc | Avi Kivity | MemoryRegion iomem; |
239 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t rttr; |
240 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t rtsr; |
241 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t rtar; |
242 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t last_rcnr; |
243 | 5bc95aa2 | Dmitry Eremin-Solenikov | int64_t last_hz; |
244 | 5bc95aa2 | Dmitry Eremin-Solenikov | QEMUTimer *rtc_alarm; |
245 | 5bc95aa2 | Dmitry Eremin-Solenikov | QEMUTimer *rtc_hz; |
246 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq rtc_irq; |
247 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq rtc_hz_irq; |
248 | 5bc95aa2 | Dmitry Eremin-Solenikov | } StrongARMRTCState; |
249 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
250 | 5bc95aa2 | Dmitry Eremin-Solenikov | static inline void strongarm_rtc_int_update(StrongARMRTCState *s) |
251 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
252 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->rtc_irq, s->rtsr & RTSR_AL); |
253 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->rtc_hz_irq, s->rtsr & RTSR_HZ); |
254 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
255 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
256 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_rtc_hzupdate(StrongARMRTCState *s) |
257 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
258 | 348abc86 | Paolo Bonzini | int64_t rt = qemu_get_clock_ms(rtc_clock); |
259 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->last_rcnr += ((rt - s->last_hz) << 15) /
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260 | 5bc95aa2 | Dmitry Eremin-Solenikov | (1000 * ((s->rttr & 0xffff) + 1)); |
261 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->last_hz = rt; |
262 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
263 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
264 | 5bc95aa2 | Dmitry Eremin-Solenikov | static inline void strongarm_rtc_timer_update(StrongARMRTCState *s) |
265 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
266 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->rtsr & RTSR_HZE) && !(s->rtsr & RTSR_HZ)) {
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267 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_mod_timer(s->rtc_hz, s->last_hz + 1000);
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268 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
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269 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_del_timer(s->rtc_hz); |
270 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
271 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
272 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->rtsr & RTSR_ALE) && !(s->rtsr & RTSR_AL)) {
|
273 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_mod_timer(s->rtc_alarm, s->last_hz + |
274 | 5bc95aa2 | Dmitry Eremin-Solenikov | (((s->rtar - s->last_rcnr) * 1000 *
|
275 | 5bc95aa2 | Dmitry Eremin-Solenikov | ((s->rttr & 0xffff) + 1)) >> 15)); |
276 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
277 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_del_timer(s->rtc_alarm); |
278 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
279 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
280 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
281 | 5bc95aa2 | Dmitry Eremin-Solenikov | static inline void strongarm_rtc_alarm_tick(void *opaque) |
282 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
283 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMRTCState *s = opaque; |
284 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rtsr |= RTSR_AL; |
285 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_timer_update(s); |
286 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_int_update(s); |
287 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
288 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
289 | 5bc95aa2 | Dmitry Eremin-Solenikov | static inline void strongarm_rtc_hz_tick(void *opaque) |
290 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
291 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMRTCState *s = opaque; |
292 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rtsr |= RTSR_HZ; |
293 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_timer_update(s); |
294 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_int_update(s); |
295 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
296 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
297 | a8170e5e | Avi Kivity | static uint64_t strongarm_rtc_read(void *opaque, hwaddr addr, |
298 | eb2fefbc | Avi Kivity | unsigned size)
|
299 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
300 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMRTCState *s = opaque; |
301 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
302 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (addr) {
|
303 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RTTR:
|
304 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->rttr;
|
305 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RTSR:
|
306 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->rtsr;
|
307 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RTAR:
|
308 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->rtar;
|
309 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RCNR:
|
310 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->last_rcnr +
|
311 | 348abc86 | Paolo Bonzini | ((qemu_get_clock_ms(rtc_clock) - s->last_hz) << 15) /
|
312 | 5bc95aa2 | Dmitry Eremin-Solenikov | (1000 * ((s->rttr & 0xffff) + 1)); |
313 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
314 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register 0x" TARGET_FMT_plx "\n", __func__, addr); |
315 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
316 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
317 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
318 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
319 | a8170e5e | Avi Kivity | static void strongarm_rtc_write(void *opaque, hwaddr addr, |
320 | eb2fefbc | Avi Kivity | uint64_t value, unsigned size)
|
321 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
322 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMRTCState *s = opaque; |
323 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t old_rtsr; |
324 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
325 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (addr) {
|
326 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RTTR:
|
327 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_hzupdate(s); |
328 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rttr = value; |
329 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_timer_update(s); |
330 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
331 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
332 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RTSR:
|
333 | 5bc95aa2 | Dmitry Eremin-Solenikov | old_rtsr = s->rtsr; |
334 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rtsr = (value & (RTSR_ALE | RTSR_HZE)) | |
335 | 5bc95aa2 | Dmitry Eremin-Solenikov | (s->rtsr & ~(value & (RTSR_AL | RTSR_HZ))); |
336 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
337 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rtsr != old_rtsr) {
|
338 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_timer_update(s); |
339 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
340 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
341 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_int_update(s); |
342 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
343 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
344 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RTAR:
|
345 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rtar = value; |
346 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_timer_update(s); |
347 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
348 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
349 | 5bc95aa2 | Dmitry Eremin-Solenikov | case RCNR:
|
350 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_hzupdate(s); |
351 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->last_rcnr = value; |
352 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_timer_update(s); |
353 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
354 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
355 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
356 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register 0x" TARGET_FMT_plx "\n", __func__, addr); |
357 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
358 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
359 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
360 | eb2fefbc | Avi Kivity | static const MemoryRegionOps strongarm_rtc_ops = { |
361 | eb2fefbc | Avi Kivity | .read = strongarm_rtc_read, |
362 | eb2fefbc | Avi Kivity | .write = strongarm_rtc_write, |
363 | eb2fefbc | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
364 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
365 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
366 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_rtc_init(SysBusDevice *dev) |
367 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
368 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMRTCState *s = FROM_SYSBUS(StrongARMRTCState, dev); |
369 | 5bc95aa2 | Dmitry Eremin-Solenikov | struct tm tm;
|
370 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
371 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rttr = 0x0;
|
372 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rtsr = 0;
|
373 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
374 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_get_timedate(&tm, 0);
|
375 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
376 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->last_rcnr = (uint32_t) mktimegm(&tm); |
377 | 348abc86 | Paolo Bonzini | s->last_hz = qemu_get_clock_ms(rtc_clock); |
378 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
379 | 348abc86 | Paolo Bonzini | s->rtc_alarm = qemu_new_timer_ms(rtc_clock, strongarm_rtc_alarm_tick, s); |
380 | 348abc86 | Paolo Bonzini | s->rtc_hz = qemu_new_timer_ms(rtc_clock, strongarm_rtc_hz_tick, s); |
381 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
382 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->rtc_irq); |
383 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->rtc_hz_irq); |
384 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
385 | eb2fefbc | Avi Kivity | memory_region_init_io(&s->iomem, &strongarm_rtc_ops, s, "rtc", 0x10000); |
386 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->iomem); |
387 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
388 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
389 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
390 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
391 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_rtc_pre_save(void *opaque) |
392 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
393 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMRTCState *s = opaque; |
394 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
395 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_hzupdate(s); |
396 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
397 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
398 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_rtc_post_load(void *opaque, int version_id) |
399 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
400 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMRTCState *s = opaque; |
401 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
402 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_timer_update(s); |
403 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_rtc_int_update(s); |
404 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
405 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
406 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
407 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
408 | 5bc95aa2 | Dmitry Eremin-Solenikov | static const VMStateDescription vmstate_strongarm_rtc_regs = { |
409 | 5bc95aa2 | Dmitry Eremin-Solenikov | .name = "strongarm-rtc",
|
410 | 5bc95aa2 | Dmitry Eremin-Solenikov | .version_id = 0,
|
411 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id = 0,
|
412 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id_old = 0,
|
413 | 5bc95aa2 | Dmitry Eremin-Solenikov | .pre_save = strongarm_rtc_pre_save, |
414 | 5bc95aa2 | Dmitry Eremin-Solenikov | .post_load = strongarm_rtc_post_load, |
415 | 5bc95aa2 | Dmitry Eremin-Solenikov | .fields = (VMStateField[]) { |
416 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(rttr, StrongARMRTCState), |
417 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(rtsr, StrongARMRTCState), |
418 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(rtar, StrongARMRTCState), |
419 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(last_rcnr, StrongARMRTCState), |
420 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_INT64(last_hz, StrongARMRTCState), |
421 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_END_OF_LIST(), |
422 | 5bc95aa2 | Dmitry Eremin-Solenikov | }, |
423 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
424 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
425 | 999e12bb | Anthony Liguori | static void strongarm_rtc_sysbus_class_init(ObjectClass *klass, void *data) |
426 | 999e12bb | Anthony Liguori | { |
427 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
428 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
429 | 999e12bb | Anthony Liguori | |
430 | 999e12bb | Anthony Liguori | k->init = strongarm_rtc_init; |
431 | 39bffca2 | Anthony Liguori | dc->desc = "StrongARM RTC Controller";
|
432 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_strongarm_rtc_regs; |
433 | 999e12bb | Anthony Liguori | } |
434 | 999e12bb | Anthony Liguori | |
435 | 39bffca2 | Anthony Liguori | static TypeInfo strongarm_rtc_sysbus_info = {
|
436 | 39bffca2 | Anthony Liguori | .name = "strongarm-rtc",
|
437 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
438 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(StrongARMRTCState),
|
439 | 39bffca2 | Anthony Liguori | .class_init = strongarm_rtc_sysbus_class_init, |
440 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
441 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
442 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* GPIO */
|
443 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GPLR 0x00 |
444 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GPDR 0x04 |
445 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GPSR 0x08 |
446 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GPCR 0x0c |
447 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GRER 0x10 |
448 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GFER 0x14 |
449 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GEDR 0x18 |
450 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define GAFR 0x1c |
451 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
452 | 5bc95aa2 | Dmitry Eremin-Solenikov | typedef struct StrongARMGPIOInfo StrongARMGPIOInfo; |
453 | 5bc95aa2 | Dmitry Eremin-Solenikov | struct StrongARMGPIOInfo {
|
454 | 5bc95aa2 | Dmitry Eremin-Solenikov | SysBusDevice busdev; |
455 | eb2fefbc | Avi Kivity | MemoryRegion iomem; |
456 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq handler[28];
|
457 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq irqs[11];
|
458 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq irqX; |
459 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
460 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t ilevel; |
461 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t olevel; |
462 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t dir; |
463 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t rising; |
464 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t falling; |
465 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t status; |
466 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t gpsr; |
467 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t gafr; |
468 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
469 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t prev_level; |
470 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
471 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
472 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
473 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_gpio_irq_update(StrongARMGPIOInfo *s) |
474 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
475 | 5bc95aa2 | Dmitry Eremin-Solenikov | int i;
|
476 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (i = 0; i < 11; i++) { |
477 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->irqs[i], s->status & (1 << i));
|
478 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
479 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
480 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->irqX, (s->status & ~0x7ff));
|
481 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
482 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
483 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_gpio_set(void *opaque, int line, int level) |
484 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
485 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMGPIOInfo *s = opaque; |
486 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t mask; |
487 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
488 | 5bc95aa2 | Dmitry Eremin-Solenikov | mask = 1 << line;
|
489 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
490 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (level) {
|
491 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->status |= s->rising & mask & |
492 | 5bc95aa2 | Dmitry Eremin-Solenikov | ~s->ilevel & ~s->dir; |
493 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ilevel |= mask; |
494 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
495 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->status |= s->falling & mask & |
496 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ilevel & ~s->dir; |
497 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ilevel &= ~mask; |
498 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
499 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
500 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->status & mask) {
|
501 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_gpio_irq_update(s); |
502 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
503 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
504 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
505 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_gpio_handler_update(StrongARMGPIOInfo *s) |
506 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
507 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t level, diff; |
508 | 5bc95aa2 | Dmitry Eremin-Solenikov | int bit;
|
509 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
510 | 5bc95aa2 | Dmitry Eremin-Solenikov | level = s->olevel & s->dir; |
511 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
512 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) { |
513 | 5bc95aa2 | Dmitry Eremin-Solenikov | bit = ffs(diff) - 1;
|
514 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->handler[bit], (level >> bit) & 1);
|
515 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
516 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
517 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->prev_level = level; |
518 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
519 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
520 | a8170e5e | Avi Kivity | static uint64_t strongarm_gpio_read(void *opaque, hwaddr offset, |
521 | eb2fefbc | Avi Kivity | unsigned size)
|
522 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
523 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMGPIOInfo *s = opaque; |
524 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
525 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (offset) {
|
526 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GPDR: /* GPIO Pin-Direction registers */ |
527 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->dir;
|
528 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
529 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GPSR: /* GPIO Pin-Output Set registers */ |
530 | 5bc95aa2 | Dmitry Eremin-Solenikov | DPRINTF("%s: Read from a write-only register 0x" TARGET_FMT_plx "\n", |
531 | 5bc95aa2 | Dmitry Eremin-Solenikov | __func__, offset); |
532 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->gpsr; /* Return last written value. */ |
533 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
534 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GPCR: /* GPIO Pin-Output Clear registers */ |
535 | 5bc95aa2 | Dmitry Eremin-Solenikov | DPRINTF("%s: Read from a write-only register 0x" TARGET_FMT_plx "\n", |
536 | 5bc95aa2 | Dmitry Eremin-Solenikov | __func__, offset); |
537 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 31337; /* Specified as unpredictable in the docs. */ |
538 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
539 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GRER: /* GPIO Rising-Edge Detect Enable registers */ |
540 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->rising;
|
541 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
542 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GFER: /* GPIO Falling-Edge Detect Enable registers */ |
543 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->falling;
|
544 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
545 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GAFR: /* GPIO Alternate Function registers */ |
546 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->gafr;
|
547 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
548 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GPLR: /* GPIO Pin-Level registers */ |
549 | 5bc95aa2 | Dmitry Eremin-Solenikov | return (s->olevel & s->dir) |
|
550 | 5bc95aa2 | Dmitry Eremin-Solenikov | (s->ilevel & ~s->dir); |
551 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
552 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GEDR: /* GPIO Edge Detect Status registers */ |
553 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->status;
|
554 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
555 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
556 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad offset 0x" TARGET_FMT_plx "\n", __func__, offset); |
557 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
558 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
559 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
560 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
561 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
562 | a8170e5e | Avi Kivity | static void strongarm_gpio_write(void *opaque, hwaddr offset, |
563 | eb2fefbc | Avi Kivity | uint64_t value, unsigned size)
|
564 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
565 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMGPIOInfo *s = opaque; |
566 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
567 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (offset) {
|
568 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GPDR: /* GPIO Pin-Direction registers */ |
569 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->dir = value; |
570 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_gpio_handler_update(s); |
571 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
572 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
573 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GPSR: /* GPIO Pin-Output Set registers */ |
574 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->olevel |= value; |
575 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_gpio_handler_update(s); |
576 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->gpsr = value; |
577 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
578 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
579 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GPCR: /* GPIO Pin-Output Clear registers */ |
580 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->olevel &= ~value; |
581 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_gpio_handler_update(s); |
582 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
583 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
584 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GRER: /* GPIO Rising-Edge Detect Enable registers */ |
585 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rising = value; |
586 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
587 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
588 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GFER: /* GPIO Falling-Edge Detect Enable registers */ |
589 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->falling = value; |
590 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
591 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
592 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GAFR: /* GPIO Alternate Function registers */ |
593 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->gafr = value; |
594 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
595 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
596 | 5bc95aa2 | Dmitry Eremin-Solenikov | case GEDR: /* GPIO Edge Detect Status registers */ |
597 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->status &= ~value; |
598 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_gpio_irq_update(s); |
599 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
600 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
601 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
602 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad offset 0x" TARGET_FMT_plx "\n", __func__, offset); |
603 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
604 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
605 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
606 | eb2fefbc | Avi Kivity | static const MemoryRegionOps strongarm_gpio_ops = { |
607 | eb2fefbc | Avi Kivity | .read = strongarm_gpio_read, |
608 | eb2fefbc | Avi Kivity | .write = strongarm_gpio_write, |
609 | eb2fefbc | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
610 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
611 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
612 | a8170e5e | Avi Kivity | static DeviceState *strongarm_gpio_init(hwaddr base,
|
613 | 5bc95aa2 | Dmitry Eremin-Solenikov | DeviceState *pic) |
614 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
615 | 5bc95aa2 | Dmitry Eremin-Solenikov | DeviceState *dev; |
616 | 5bc95aa2 | Dmitry Eremin-Solenikov | int i;
|
617 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
618 | 5bc95aa2 | Dmitry Eremin-Solenikov | dev = qdev_create(NULL, "strongarm-gpio"); |
619 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_init_nofail(dev); |
620 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
621 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
|
622 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (i = 0; i < 12; i++) |
623 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_connect_irq(sysbus_from_qdev(dev), i, |
624 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(pic, SA_PIC_GPIO0_EDGE + i)); |
625 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
626 | 5bc95aa2 | Dmitry Eremin-Solenikov | return dev;
|
627 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
628 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
629 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_gpio_initfn(SysBusDevice *dev) |
630 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
631 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMGPIOInfo *s; |
632 | 5bc95aa2 | Dmitry Eremin-Solenikov | int i;
|
633 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
634 | 5bc95aa2 | Dmitry Eremin-Solenikov | s = FROM_SYSBUS(StrongARMGPIOInfo, dev); |
635 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
636 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_init_gpio_in(&dev->qdev, strongarm_gpio_set, 28);
|
637 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_init_gpio_out(&dev->qdev, s->handler, 28);
|
638 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
639 | eb2fefbc | Avi Kivity | memory_region_init_io(&s->iomem, &strongarm_gpio_ops, s, "gpio", 0x1000); |
640 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
641 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->iomem); |
642 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (i = 0; i < 11; i++) { |
643 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->irqs[i]); |
644 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
645 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->irqX); |
646 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
647 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
648 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
649 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
650 | 5bc95aa2 | Dmitry Eremin-Solenikov | static const VMStateDescription vmstate_strongarm_gpio_regs = { |
651 | 5bc95aa2 | Dmitry Eremin-Solenikov | .name = "strongarm-gpio",
|
652 | 5bc95aa2 | Dmitry Eremin-Solenikov | .version_id = 0,
|
653 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id = 0,
|
654 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id_old = 0,
|
655 | 5bc95aa2 | Dmitry Eremin-Solenikov | .fields = (VMStateField[]) { |
656 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(ilevel, StrongARMGPIOInfo), |
657 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(olevel, StrongARMGPIOInfo), |
658 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(dir, StrongARMGPIOInfo), |
659 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(rising, StrongARMGPIOInfo), |
660 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(falling, StrongARMGPIOInfo), |
661 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(status, StrongARMGPIOInfo), |
662 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(gafr, StrongARMGPIOInfo), |
663 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_END_OF_LIST(), |
664 | 5bc95aa2 | Dmitry Eremin-Solenikov | }, |
665 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
666 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
667 | 999e12bb | Anthony Liguori | static void strongarm_gpio_class_init(ObjectClass *klass, void *data) |
668 | 999e12bb | Anthony Liguori | { |
669 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
670 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
671 | 999e12bb | Anthony Liguori | |
672 | 999e12bb | Anthony Liguori | k->init = strongarm_gpio_initfn; |
673 | 39bffca2 | Anthony Liguori | dc->desc = "StrongARM GPIO controller";
|
674 | 999e12bb | Anthony Liguori | } |
675 | 999e12bb | Anthony Liguori | |
676 | 39bffca2 | Anthony Liguori | static TypeInfo strongarm_gpio_info = {
|
677 | 39bffca2 | Anthony Liguori | .name = "strongarm-gpio",
|
678 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
679 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(StrongARMGPIOInfo),
|
680 | 39bffca2 | Anthony Liguori | .class_init = strongarm_gpio_class_init, |
681 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
682 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
683 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Peripheral Pin Controller */
|
684 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define PPDR 0x00 |
685 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define PPSR 0x04 |
686 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define PPAR 0x08 |
687 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define PSDR 0x0c |
688 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define PPFR 0x10 |
689 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
690 | 5bc95aa2 | Dmitry Eremin-Solenikov | typedef struct StrongARMPPCInfo StrongARMPPCInfo; |
691 | 5bc95aa2 | Dmitry Eremin-Solenikov | struct StrongARMPPCInfo {
|
692 | 5bc95aa2 | Dmitry Eremin-Solenikov | SysBusDevice busdev; |
693 | eb2fefbc | Avi Kivity | MemoryRegion iomem; |
694 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq handler[28];
|
695 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
696 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t ilevel; |
697 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t olevel; |
698 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t dir; |
699 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t ppar; |
700 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t psdr; |
701 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t ppfr; |
702 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
703 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t prev_level; |
704 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
705 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
706 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_ppc_set(void *opaque, int line, int level) |
707 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
708 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPPCInfo *s = opaque; |
709 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
710 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (level) {
|
711 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ilevel |= 1 << line;
|
712 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
713 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ilevel &= ~(1 << line);
|
714 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
715 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
716 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
717 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_ppc_handler_update(StrongARMPPCInfo *s) |
718 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
719 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t level, diff; |
720 | 5bc95aa2 | Dmitry Eremin-Solenikov | int bit;
|
721 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
722 | 5bc95aa2 | Dmitry Eremin-Solenikov | level = s->olevel & s->dir; |
723 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
724 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) { |
725 | 5bc95aa2 | Dmitry Eremin-Solenikov | bit = ffs(diff) - 1;
|
726 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->handler[bit], (level >> bit) & 1);
|
727 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
728 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
729 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->prev_level = level; |
730 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
731 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
732 | a8170e5e | Avi Kivity | static uint64_t strongarm_ppc_read(void *opaque, hwaddr offset, |
733 | eb2fefbc | Avi Kivity | unsigned size)
|
734 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
735 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPPCInfo *s = opaque; |
736 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
737 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (offset) {
|
738 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPDR: /* PPC Pin Direction registers */ |
739 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->dir | ~0x3fffff; |
740 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
741 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPSR: /* PPC Pin State registers */ |
742 | 5bc95aa2 | Dmitry Eremin-Solenikov | return (s->olevel & s->dir) |
|
743 | 5bc95aa2 | Dmitry Eremin-Solenikov | (s->ilevel & ~s->dir) | |
744 | 5bc95aa2 | Dmitry Eremin-Solenikov | ~0x3fffff;
|
745 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
746 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPAR:
|
747 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->ppar | ~0x41000; |
748 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
749 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PSDR:
|
750 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->psdr;
|
751 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
752 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPFR:
|
753 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->ppfr | ~0x7f001; |
754 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
755 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
756 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad offset 0x" TARGET_FMT_plx "\n", __func__, offset); |
757 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
758 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
759 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
760 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
761 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
762 | a8170e5e | Avi Kivity | static void strongarm_ppc_write(void *opaque, hwaddr offset, |
763 | eb2fefbc | Avi Kivity | uint64_t value, unsigned size)
|
764 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
765 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPPCInfo *s = opaque; |
766 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
767 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (offset) {
|
768 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPDR: /* PPC Pin Direction registers */ |
769 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->dir = value & 0x3fffff;
|
770 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ppc_handler_update(s); |
771 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
772 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
773 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPSR: /* PPC Pin State registers */ |
774 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->olevel = value & s->dir & 0x3fffff;
|
775 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ppc_handler_update(s); |
776 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
777 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
778 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPAR:
|
779 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ppar = value & 0x41000;
|
780 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
781 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
782 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PSDR:
|
783 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->psdr = value & 0x3fffff;
|
784 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
785 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
786 | 5bc95aa2 | Dmitry Eremin-Solenikov | case PPFR:
|
787 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ppfr = value & 0x7f001;
|
788 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
789 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
790 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
791 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad offset 0x" TARGET_FMT_plx "\n", __func__, offset); |
792 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
793 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
794 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
795 | eb2fefbc | Avi Kivity | static const MemoryRegionOps strongarm_ppc_ops = { |
796 | eb2fefbc | Avi Kivity | .read = strongarm_ppc_read, |
797 | eb2fefbc | Avi Kivity | .write = strongarm_ppc_write, |
798 | eb2fefbc | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
799 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
800 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
801 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_ppc_init(SysBusDevice *dev) |
802 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
803 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMPPCInfo *s; |
804 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
805 | 5bc95aa2 | Dmitry Eremin-Solenikov | s = FROM_SYSBUS(StrongARMPPCInfo, dev); |
806 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
807 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_init_gpio_in(&dev->qdev, strongarm_ppc_set, 22);
|
808 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_init_gpio_out(&dev->qdev, s->handler, 22);
|
809 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
810 | eb2fefbc | Avi Kivity | memory_region_init_io(&s->iomem, &strongarm_ppc_ops, s, "ppc", 0x1000); |
811 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
812 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->iomem); |
813 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
814 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
815 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
816 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
817 | 5bc95aa2 | Dmitry Eremin-Solenikov | static const VMStateDescription vmstate_strongarm_ppc_regs = { |
818 | 5bc95aa2 | Dmitry Eremin-Solenikov | .name = "strongarm-ppc",
|
819 | 5bc95aa2 | Dmitry Eremin-Solenikov | .version_id = 0,
|
820 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id = 0,
|
821 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id_old = 0,
|
822 | 5bc95aa2 | Dmitry Eremin-Solenikov | .fields = (VMStateField[]) { |
823 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(ilevel, StrongARMPPCInfo), |
824 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(olevel, StrongARMPPCInfo), |
825 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(dir, StrongARMPPCInfo), |
826 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(ppar, StrongARMPPCInfo), |
827 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(psdr, StrongARMPPCInfo), |
828 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT32(ppfr, StrongARMPPCInfo), |
829 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_END_OF_LIST(), |
830 | 5bc95aa2 | Dmitry Eremin-Solenikov | }, |
831 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
832 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
833 | 999e12bb | Anthony Liguori | static void strongarm_ppc_class_init(ObjectClass *klass, void *data) |
834 | 999e12bb | Anthony Liguori | { |
835 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
836 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
837 | 999e12bb | Anthony Liguori | |
838 | 999e12bb | Anthony Liguori | k->init = strongarm_ppc_init; |
839 | 39bffca2 | Anthony Liguori | dc->desc = "StrongARM PPC controller";
|
840 | 999e12bb | Anthony Liguori | } |
841 | 999e12bb | Anthony Liguori | |
842 | 39bffca2 | Anthony Liguori | static TypeInfo strongarm_ppc_info = {
|
843 | 39bffca2 | Anthony Liguori | .name = "strongarm-ppc",
|
844 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
845 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(StrongARMPPCInfo),
|
846 | 39bffca2 | Anthony Liguori | .class_init = strongarm_ppc_class_init, |
847 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
848 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
849 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* UART Ports */
|
850 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR0 0x00 |
851 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR1 0x04 |
852 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR2 0x08 |
853 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR3 0x0c |
854 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTDR 0x14 |
855 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR0 0x1c |
856 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR1 0x20 |
857 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
858 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR0_PE (1 << 0) /* Parity enable */ |
859 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR0_OES (1 << 1) /* Even parity */ |
860 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR0_SBS (1 << 2) /* 2 stop bits */ |
861 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR0_DSS (1 << 3) /* 8-bit data */ |
862 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
863 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR3_RXE (1 << 0) /* Rx enable */ |
864 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR3_TXE (1 << 1) /* Tx enable */ |
865 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR3_BRK (1 << 2) /* Force Break */ |
866 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR3_RIE (1 << 3) /* Rx int enable */ |
867 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR3_TIE (1 << 4) /* Tx int enable */ |
868 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTCR3_LBM (1 << 5) /* Loopback */ |
869 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
870 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR0_TFS (1 << 0) /* Tx FIFO nearly empty */ |
871 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR0_RFS (1 << 1) /* Rx FIFO nearly full */ |
872 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR0_RID (1 << 2) /* Receiver Idle */ |
873 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR0_RBB (1 << 3) /* Receiver begin break */ |
874 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR0_REB (1 << 4) /* Receiver end break */ |
875 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR0_EIF (1 << 5) /* Error in FIFO */ |
876 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
877 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR1_RNE (1 << 1) /* Receive FIFO not empty */ |
878 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR1_TNF (1 << 2) /* Transmit FIFO not full */ |
879 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR1_PRE (1 << 3) /* Parity error */ |
880 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR1_FRE (1 << 4) /* Frame error */ |
881 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define UTSR1_ROR (1 << 5) /* Receive Over Run */ |
882 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
883 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RX_FIFO_PRE (1 << 8) |
884 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RX_FIFO_FRE (1 << 9) |
885 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define RX_FIFO_ROR (1 << 10) |
886 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
887 | 5bc95aa2 | Dmitry Eremin-Solenikov | typedef struct { |
888 | 5bc95aa2 | Dmitry Eremin-Solenikov | SysBusDevice busdev; |
889 | eb2fefbc | Avi Kivity | MemoryRegion iomem; |
890 | 5bc95aa2 | Dmitry Eremin-Solenikov | CharDriverState *chr; |
891 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq irq; |
892 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
893 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t utcr0; |
894 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t brd; |
895 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t utcr3; |
896 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t utsr0; |
897 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t utsr1; |
898 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
899 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t tx_fifo[8];
|
900 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t tx_start; |
901 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t tx_len; |
902 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t rx_fifo[12]; /* value + error flags in high bits */ |
903 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t rx_start; |
904 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t rx_len; |
905 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
906 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint64_t char_transmit_time; /* time to transmit a char in ticks*/
|
907 | 5bc95aa2 | Dmitry Eremin-Solenikov | bool wait_break_end;
|
908 | 5bc95aa2 | Dmitry Eremin-Solenikov | QEMUTimer *rx_timeout_timer; |
909 | 5bc95aa2 | Dmitry Eremin-Solenikov | QEMUTimer *tx_timer; |
910 | 5bc95aa2 | Dmitry Eremin-Solenikov | } StrongARMUARTState; |
911 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
912 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_update_status(StrongARMUARTState *s) |
913 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
914 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t utsr1 = 0;
|
915 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
916 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->tx_len != 8) { |
917 | 5bc95aa2 | Dmitry Eremin-Solenikov | utsr1 |= UTSR1_TNF; |
918 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
919 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
920 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_len != 0) { |
921 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t ent = s->rx_fifo[s->rx_start]; |
922 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
923 | 5bc95aa2 | Dmitry Eremin-Solenikov | utsr1 |= UTSR1_RNE; |
924 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (ent & RX_FIFO_PRE) {
|
925 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr1 |= UTSR1_PRE; |
926 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
927 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (ent & RX_FIFO_FRE) {
|
928 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr1 |= UTSR1_FRE; |
929 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
930 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (ent & RX_FIFO_ROR) {
|
931 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr1 |= UTSR1_ROR; |
932 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
933 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
934 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
935 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr1 = utsr1; |
936 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
937 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
938 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_update_int_status(StrongARMUARTState *s) |
939 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
940 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t utsr0 = s->utsr0 & |
941 | 5bc95aa2 | Dmitry Eremin-Solenikov | (UTSR0_REB | UTSR0_RBB | UTSR0_RID); |
942 | 5bc95aa2 | Dmitry Eremin-Solenikov | int i;
|
943 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
944 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->utcr3 & UTCR3_TXE) &&
|
945 | 5bc95aa2 | Dmitry Eremin-Solenikov | (s->utcr3 & UTCR3_TIE) && |
946 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->tx_len <= 4) {
|
947 | 5bc95aa2 | Dmitry Eremin-Solenikov | utsr0 |= UTSR0_TFS; |
948 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
949 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
950 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->utcr3 & UTCR3_RXE) &&
|
951 | 5bc95aa2 | Dmitry Eremin-Solenikov | (s->utcr3 & UTCR3_RIE) && |
952 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_len > 4) {
|
953 | 5bc95aa2 | Dmitry Eremin-Solenikov | utsr0 |= UTSR0_RFS; |
954 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
955 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
956 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (i = 0; i < s->rx_len && i < 4; i++) |
957 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_fifo[(s->rx_start + i) % 12] & ~0xff) { |
958 | 5bc95aa2 | Dmitry Eremin-Solenikov | utsr0 |= UTSR0_EIF; |
959 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
960 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
961 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
962 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr0 = utsr0; |
963 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->irq, utsr0); |
964 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
965 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
966 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_update_parameters(StrongARMUARTState *s) |
967 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
968 | 5bc95aa2 | Dmitry Eremin-Solenikov | int speed, parity, data_bits, stop_bits, frame_size;
|
969 | 5bc95aa2 | Dmitry Eremin-Solenikov | QEMUSerialSetParams ssp; |
970 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
971 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Start bit. */
|
972 | 5bc95aa2 | Dmitry Eremin-Solenikov | frame_size = 1;
|
973 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->utcr0 & UTCR0_PE) {
|
974 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Parity bit. */
|
975 | 5bc95aa2 | Dmitry Eremin-Solenikov | frame_size++; |
976 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->utcr0 & UTCR0_OES) {
|
977 | 5bc95aa2 | Dmitry Eremin-Solenikov | parity = 'E';
|
978 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
979 | 5bc95aa2 | Dmitry Eremin-Solenikov | parity = 'O';
|
980 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
981 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
982 | 5bc95aa2 | Dmitry Eremin-Solenikov | parity = 'N';
|
983 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
984 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->utcr0 & UTCR0_SBS) {
|
985 | 5bc95aa2 | Dmitry Eremin-Solenikov | stop_bits = 2;
|
986 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
987 | 5bc95aa2 | Dmitry Eremin-Solenikov | stop_bits = 1;
|
988 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
989 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
990 | 5bc95aa2 | Dmitry Eremin-Solenikov | data_bits = (s->utcr0 & UTCR0_DSS) ? 8 : 7; |
991 | 5bc95aa2 | Dmitry Eremin-Solenikov | frame_size += data_bits + stop_bits; |
992 | 5bc95aa2 | Dmitry Eremin-Solenikov | speed = 3686400 / 16 / (s->brd + 1); |
993 | 5bc95aa2 | Dmitry Eremin-Solenikov | ssp.speed = speed; |
994 | 5bc95aa2 | Dmitry Eremin-Solenikov | ssp.parity = parity; |
995 | 5bc95aa2 | Dmitry Eremin-Solenikov | ssp.data_bits = data_bits; |
996 | 5bc95aa2 | Dmitry Eremin-Solenikov | ssp.stop_bits = stop_bits; |
997 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->char_transmit_time = (get_ticks_per_sec() / speed) * frame_size; |
998 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->chr) {
|
999 | 41084f1b | Anthony Liguori | qemu_chr_fe_ioctl(s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp); |
1000 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1001 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1002 | 5bc95aa2 | Dmitry Eremin-Solenikov | DPRINTF(stderr, "%s speed=%d parity=%c data=%d stop=%d\n", s->chr->label,
|
1003 | 5bc95aa2 | Dmitry Eremin-Solenikov | speed, parity, data_bits, stop_bits); |
1004 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1005 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1006 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_rx_to(void *opaque) |
1007 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1008 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1009 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1010 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_len) {
|
1011 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr0 |= UTSR0_RID; |
1012 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1013 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1014 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1015 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1016 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_rx_push(StrongARMUARTState *s, uint16_t c) |
1017 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1018 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->utcr3 & UTCR3_RXE) == 0) { |
1019 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* rx disabled */
|
1020 | 5bc95aa2 | Dmitry Eremin-Solenikov | return;
|
1021 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1022 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1023 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->wait_break_end) {
|
1024 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr0 |= UTSR0_REB; |
1025 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->wait_break_end = false;
|
1026 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1027 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1028 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_len < 12) { |
1029 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_fifo[(s->rx_start + s->rx_len) % 12] = c;
|
1030 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_len++; |
1031 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else
|
1032 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_fifo[(s->rx_start + 11) % 12] |= RX_FIFO_ROR; |
1033 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1034 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1035 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_uart_can_receive(void *opaque) |
1036 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1037 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1038 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1039 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_len == 12) { |
1040 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1041 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1042 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* It's best not to get more than 2/3 of RX FIFO, so advertise that much */
|
1043 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_len < 8) { |
1044 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 8 - s->rx_len; |
1045 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1046 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 1; |
1047 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1048 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1049 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_receive(void *opaque, const uint8_t *buf, int size) |
1050 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1051 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1052 | 5bc95aa2 | Dmitry Eremin-Solenikov | int i;
|
1053 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1054 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (i = 0; i < size; i++) { |
1055 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_rx_push(s, buf[i]); |
1056 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1057 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1058 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* call the timeout receive callback in 3 char transmit time */
|
1059 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_mod_timer(s->rx_timeout_timer, |
1060 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_get_clock_ns(vm_clock) + s->char_transmit_time * 3);
|
1061 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1062 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1063 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1064 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1065 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1066 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_event(void *opaque, int event) |
1067 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1068 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1069 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (event == CHR_EVENT_BREAK) {
|
1070 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr0 |= UTSR0_RBB; |
1071 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_rx_push(s, RX_FIFO_FRE); |
1072 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->wait_break_end = true;
|
1073 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1074 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1075 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1076 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1077 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1078 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_tx(void *opaque) |
1079 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1080 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1081 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint64_t new_xmit_ts = qemu_get_clock_ns(vm_clock); |
1082 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1083 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->utcr3 & UTCR3_LBM) /* loopback */ { |
1084 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_receive(s, &s->tx_fifo[s->tx_start], 1);
|
1085 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else if (s->chr) { |
1086 | 2cc6e0a1 | Anthony Liguori | qemu_chr_fe_write(s->chr, &s->tx_fifo[s->tx_start], 1);
|
1087 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1088 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1089 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->tx_start = (s->tx_start + 1) % 8; |
1090 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->tx_len--; |
1091 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->tx_len) {
|
1092 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_mod_timer(s->tx_timer, new_xmit_ts + s->char_transmit_time); |
1093 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1094 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1095 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1096 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1097 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1098 | a8170e5e | Avi Kivity | static uint64_t strongarm_uart_read(void *opaque, hwaddr addr, |
1099 | eb2fefbc | Avi Kivity | unsigned size)
|
1100 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1101 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1102 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t ret; |
1103 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1104 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (addr) {
|
1105 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR0:
|
1106 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->utcr0;
|
1107 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1108 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR1:
|
1109 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->brd >> 8; |
1110 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1111 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR2:
|
1112 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->brd & 0xff; |
1113 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1114 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR3:
|
1115 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->utcr3;
|
1116 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1117 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTDR:
|
1118 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_len != 0) { |
1119 | 5bc95aa2 | Dmitry Eremin-Solenikov | ret = s->rx_fifo[s->rx_start]; |
1120 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_start = (s->rx_start + 1) % 12; |
1121 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_len--; |
1122 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1123 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1124 | 5bc95aa2 | Dmitry Eremin-Solenikov | return ret;
|
1125 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1126 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1127 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1128 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTSR0:
|
1129 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->utsr0;
|
1130 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1131 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTSR1:
|
1132 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->utsr1;
|
1133 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1134 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
1135 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register 0x" TARGET_FMT_plx "\n", __func__, addr); |
1136 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1137 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1138 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1139 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1140 | a8170e5e | Avi Kivity | static void strongarm_uart_write(void *opaque, hwaddr addr, |
1141 | eb2fefbc | Avi Kivity | uint64_t value, unsigned size)
|
1142 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1143 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1144 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1145 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (addr) {
|
1146 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR0:
|
1147 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utcr0 = value & 0x7f;
|
1148 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_parameters(s); |
1149 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1150 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1151 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR1:
|
1152 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->brd = (s->brd & 0xff) | ((value & 0xf) << 8); |
1153 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_parameters(s); |
1154 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1155 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1156 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR2:
|
1157 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->brd = (s->brd & 0xf00) | (value & 0xff); |
1158 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_parameters(s); |
1159 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1160 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1161 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTCR3:
|
1162 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utcr3 = value & 0x3f;
|
1163 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->utcr3 & UTCR3_RXE) == 0) { |
1164 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_len = 0;
|
1165 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1166 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->utcr3 & UTCR3_TXE) == 0) { |
1167 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->tx_len = 0;
|
1168 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1169 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1170 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1171 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1172 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1173 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTDR:
|
1174 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->utcr3 & UTCR3_TXE) && s->tx_len != 8) { |
1175 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->tx_fifo[(s->tx_start + s->tx_len) % 8] = value;
|
1176 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->tx_len++; |
1177 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1178 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1179 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->tx_len == 1) { |
1180 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_tx(s); |
1181 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1182 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1183 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1184 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1185 | 5bc95aa2 | Dmitry Eremin-Solenikov | case UTSR0:
|
1186 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utsr0 = s->utsr0 & ~(value & |
1187 | 5bc95aa2 | Dmitry Eremin-Solenikov | (UTSR0_REB | UTSR0_RBB | UTSR0_RID)); |
1188 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1189 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1190 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1191 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
1192 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register 0x" TARGET_FMT_plx "\n", __func__, addr); |
1193 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1194 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1195 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1196 | eb2fefbc | Avi Kivity | static const MemoryRegionOps strongarm_uart_ops = { |
1197 | eb2fefbc | Avi Kivity | .read = strongarm_uart_read, |
1198 | eb2fefbc | Avi Kivity | .write = strongarm_uart_write, |
1199 | eb2fefbc | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1200 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
1201 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1202 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_uart_init(SysBusDevice *dev) |
1203 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1204 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = FROM_SYSBUS(StrongARMUARTState, dev); |
1205 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1206 | eb2fefbc | Avi Kivity | memory_region_init_io(&s->iomem, &strongarm_uart_ops, s, "uart", 0x10000); |
1207 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->iomem); |
1208 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->irq); |
1209 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1210 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_timeout_timer = qemu_new_timer_ns(vm_clock, strongarm_uart_rx_to, s); |
1211 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->tx_timer = qemu_new_timer_ns(vm_clock, strongarm_uart_tx, s); |
1212 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1213 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->chr) {
|
1214 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_chr_add_handlers(s->chr, |
1215 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_can_receive, |
1216 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_receive, |
1217 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_event, |
1218 | 5bc95aa2 | Dmitry Eremin-Solenikov | s); |
1219 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1220 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1221 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1222 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1223 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1224 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_uart_reset(DeviceState *dev) |
1225 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1226 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = DO_UPCAST(StrongARMUARTState, busdev.qdev, dev); |
1227 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1228 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utcr0 = UTCR0_DSS; /* 8 data, no parity */
|
1229 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->brd = 23; /* 9600 */ |
1230 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* enable send & recv - this actually violates spec */
|
1231 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->utcr3 = UTCR3_TXE | UTCR3_RXE; |
1232 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1233 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_len = s->tx_len = 0;
|
1234 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1235 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_parameters(s); |
1236 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1237 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1238 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1239 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1240 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_uart_post_load(void *opaque, int version_id) |
1241 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1242 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMUARTState *s = opaque; |
1243 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1244 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_parameters(s); |
1245 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_status(s); |
1246 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_update_int_status(s); |
1247 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1248 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* tx and restart timer */
|
1249 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->tx_len) {
|
1250 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_uart_tx(s); |
1251 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1252 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1253 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* restart rx timeout timer */
|
1254 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_len) {
|
1255 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_mod_timer(s->rx_timeout_timer, |
1256 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_get_clock_ns(vm_clock) + s->char_transmit_time * 3);
|
1257 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1258 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1259 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1260 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1261 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1262 | 5bc95aa2 | Dmitry Eremin-Solenikov | static const VMStateDescription vmstate_strongarm_uart_regs = { |
1263 | 5bc95aa2 | Dmitry Eremin-Solenikov | .name = "strongarm-uart",
|
1264 | 5bc95aa2 | Dmitry Eremin-Solenikov | .version_id = 0,
|
1265 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id = 0,
|
1266 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id_old = 0,
|
1267 | 5bc95aa2 | Dmitry Eremin-Solenikov | .post_load = strongarm_uart_post_load, |
1268 | 5bc95aa2 | Dmitry Eremin-Solenikov | .fields = (VMStateField[]) { |
1269 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(utcr0, StrongARMUARTState), |
1270 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT16(brd, StrongARMUARTState), |
1271 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(utcr3, StrongARMUARTState), |
1272 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(utsr0, StrongARMUARTState), |
1273 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8_ARRAY(tx_fifo, StrongARMUARTState, 8),
|
1274 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(tx_start, StrongARMUARTState), |
1275 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(tx_len, StrongARMUARTState), |
1276 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT16_ARRAY(rx_fifo, StrongARMUARTState, 12),
|
1277 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(rx_start, StrongARMUARTState), |
1278 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(rx_len, StrongARMUARTState), |
1279 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_BOOL(wait_break_end, StrongARMUARTState), |
1280 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_END_OF_LIST(), |
1281 | 5bc95aa2 | Dmitry Eremin-Solenikov | }, |
1282 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
1283 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1284 | 999e12bb | Anthony Liguori | static Property strongarm_uart_properties[] = {
|
1285 | 999e12bb | Anthony Liguori | DEFINE_PROP_CHR("chardev", StrongARMUARTState, chr),
|
1286 | 999e12bb | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
1287 | 999e12bb | Anthony Liguori | }; |
1288 | 999e12bb | Anthony Liguori | |
1289 | 999e12bb | Anthony Liguori | static void strongarm_uart_class_init(ObjectClass *klass, void *data) |
1290 | 999e12bb | Anthony Liguori | { |
1291 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
1292 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
1293 | 999e12bb | Anthony Liguori | |
1294 | 999e12bb | Anthony Liguori | k->init = strongarm_uart_init; |
1295 | 39bffca2 | Anthony Liguori | dc->desc = "StrongARM UART controller";
|
1296 | 39bffca2 | Anthony Liguori | dc->reset = strongarm_uart_reset; |
1297 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_strongarm_uart_regs; |
1298 | 39bffca2 | Anthony Liguori | dc->props = strongarm_uart_properties; |
1299 | 999e12bb | Anthony Liguori | } |
1300 | 999e12bb | Anthony Liguori | |
1301 | 39bffca2 | Anthony Liguori | static TypeInfo strongarm_uart_info = {
|
1302 | 39bffca2 | Anthony Liguori | .name = "strongarm-uart",
|
1303 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
1304 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(StrongARMUARTState),
|
1305 | 39bffca2 | Anthony Liguori | .class_init = strongarm_uart_class_init, |
1306 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
1307 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1308 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Synchronous Serial Ports */
|
1309 | 5bc95aa2 | Dmitry Eremin-Solenikov | typedef struct { |
1310 | 5bc95aa2 | Dmitry Eremin-Solenikov | SysBusDevice busdev; |
1311 | eb2fefbc | Avi Kivity | MemoryRegion iomem; |
1312 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq irq; |
1313 | 5bc95aa2 | Dmitry Eremin-Solenikov | SSIBus *bus; |
1314 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1315 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t sscr[2];
|
1316 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t sssr; |
1317 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1318 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint16_t rx_fifo[8];
|
1319 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t rx_level; |
1320 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint8_t rx_start; |
1321 | 5bc95aa2 | Dmitry Eremin-Solenikov | } StrongARMSSPState; |
1322 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1323 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR0 0x60 /* SSP Control register 0 */ |
1324 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR1 0x64 /* SSP Control register 1 */ |
1325 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSDR 0x6c /* SSP Data register */ |
1326 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSSR 0x74 /* SSP Status register */ |
1327 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1328 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Bitfields for above registers */
|
1329 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR0_SPI(x) (((x) & 0x30) == 0x00) |
1330 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR0_SSP(x) (((x) & 0x30) == 0x10) |
1331 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR0_UWIRE(x) (((x) & 0x30) == 0x20) |
1332 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR0_PSP(x) (((x) & 0x30) == 0x30) |
1333 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR0_SSE (1 << 7) |
1334 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR0_DSS(x) (((x) & 0xf) + 1) |
1335 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR1_RIE (1 << 0) |
1336 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR1_TIE (1 << 1) |
1337 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSCR1_LBM (1 << 2) |
1338 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSSR_TNF (1 << 2) |
1339 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSSR_RNE (1 << 3) |
1340 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSSR_TFS (1 << 5) |
1341 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSSR_RFS (1 << 6) |
1342 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSSR_ROR (1 << 7) |
1343 | 5bc95aa2 | Dmitry Eremin-Solenikov | #define SSSR_RW 0x0080 |
1344 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1345 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_ssp_int_update(StrongARMSSPState *s) |
1346 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1347 | 5bc95aa2 | Dmitry Eremin-Solenikov | int level = 0; |
1348 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1349 | 5bc95aa2 | Dmitry Eremin-Solenikov | level |= (s->sssr & SSSR_ROR); |
1350 | 5bc95aa2 | Dmitry Eremin-Solenikov | level |= (s->sssr & SSSR_RFS) && (s->sscr[1] & SSCR1_RIE);
|
1351 | 5bc95aa2 | Dmitry Eremin-Solenikov | level |= (s->sssr & SSSR_TFS) && (s->sscr[1] & SSCR1_TIE);
|
1352 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_set_irq(s->irq, level); |
1353 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1354 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1355 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_ssp_fifo_update(StrongARMSSPState *s) |
1356 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1357 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr &= ~SSSR_TFS; |
1358 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr &= ~SSSR_TNF; |
1359 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->sscr[0] & SSCR0_SSE) { |
1360 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_level >= 4) { |
1361 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr |= SSSR_RFS; |
1362 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
1363 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr &= ~SSSR_RFS; |
1364 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1365 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_level) {
|
1366 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr |= SSSR_RNE; |
1367 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
1368 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr &= ~SSSR_RNE; |
1369 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1370 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* TX FIFO is never filled, so it is always in underrun
|
1371 | 5bc95aa2 | Dmitry Eremin-Solenikov | condition if SSP is enabled */
|
1372 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr |= SSSR_TFS; |
1373 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr |= SSSR_TNF; |
1374 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1375 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1376 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ssp_int_update(s); |
1377 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1378 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1379 | a8170e5e | Avi Kivity | static uint64_t strongarm_ssp_read(void *opaque, hwaddr addr, |
1380 | eb2fefbc | Avi Kivity | unsigned size)
|
1381 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1382 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMSSPState *s = opaque; |
1383 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t retval; |
1384 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1385 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (addr) {
|
1386 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSCR0:
|
1387 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->sscr[0]; |
1388 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSCR1:
|
1389 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->sscr[1]; |
1390 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSSR:
|
1391 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s->sssr;
|
1392 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSDR:
|
1393 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (~s->sscr[0] & SSCR0_SSE) { |
1394 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0xffffffff; |
1395 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1396 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_level < 1) { |
1397 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: SSP Rx Underrun\n", __func__);
|
1398 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0xffffffff; |
1399 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1400 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_level--; |
1401 | 5bc95aa2 | Dmitry Eremin-Solenikov | retval = s->rx_fifo[s->rx_start++]; |
1402 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_start &= 0x7;
|
1403 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ssp_fifo_update(s); |
1404 | 5bc95aa2 | Dmitry Eremin-Solenikov | return retval;
|
1405 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
1406 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register 0x" TARGET_FMT_plx "\n", __func__, addr); |
1407 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1408 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1409 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1410 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1411 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1412 | a8170e5e | Avi Kivity | static void strongarm_ssp_write(void *opaque, hwaddr addr, |
1413 | eb2fefbc | Avi Kivity | uint64_t value, unsigned size)
|
1414 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1415 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMSSPState *s = opaque; |
1416 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1417 | 5bc95aa2 | Dmitry Eremin-Solenikov | switch (addr) {
|
1418 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSCR0:
|
1419 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sscr[0] = value & 0xffbf; |
1420 | 5bc95aa2 | Dmitry Eremin-Solenikov | if ((s->sscr[0] & SSCR0_SSE) && SSCR0_DSS(value) < 4) { |
1421 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Wrong data size: %i bits\n", __func__,
|
1422 | eb2fefbc | Avi Kivity | (int)SSCR0_DSS(value));
|
1423 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1424 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (!(value & SSCR0_SSE)) {
|
1425 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr = 0;
|
1426 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_level = 0;
|
1427 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1428 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ssp_fifo_update(s); |
1429 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1430 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1431 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSCR1:
|
1432 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sscr[1] = value & 0x2f; |
1433 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (value & SSCR1_LBM) {
|
1434 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Attempt to use SSP LBM mode\n", __func__);
|
1435 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1436 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ssp_fifo_update(s); |
1437 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1438 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1439 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSSR:
|
1440 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr &= ~(value & SSSR_RW); |
1441 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ssp_int_update(s); |
1442 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1443 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1444 | 5bc95aa2 | Dmitry Eremin-Solenikov | case SSDR:
|
1445 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (SSCR0_UWIRE(s->sscr[0])) { |
1446 | 5bc95aa2 | Dmitry Eremin-Solenikov | value &= 0xff;
|
1447 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else
|
1448 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Note how 32bits overflow does no harm here */
|
1449 | 5bc95aa2 | Dmitry Eremin-Solenikov | value &= (1 << SSCR0_DSS(s->sscr[0])) - 1; |
1450 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1451 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Data goes from here to the Tx FIFO and is shifted out from
|
1452 | 5bc95aa2 | Dmitry Eremin-Solenikov | * there directly to the slave, no need to buffer it.
|
1453 | 5bc95aa2 | Dmitry Eremin-Solenikov | */
|
1454 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->sscr[0] & SSCR0_SSE) { |
1455 | 5bc95aa2 | Dmitry Eremin-Solenikov | uint32_t readval; |
1456 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->sscr[1] & SSCR1_LBM) { |
1457 | 5bc95aa2 | Dmitry Eremin-Solenikov | readval = value; |
1458 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
1459 | 5bc95aa2 | Dmitry Eremin-Solenikov | readval = ssi_transfer(s->bus, value); |
1460 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1461 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1462 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (s->rx_level < 0x08) { |
1463 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_fifo[(s->rx_start + s->rx_level++) & 0x7] = readval;
|
1464 | 5bc95aa2 | Dmitry Eremin-Solenikov | } else {
|
1465 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr |= SSSR_ROR; |
1466 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1467 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1468 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ssp_fifo_update(s); |
1469 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1470 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1471 | 5bc95aa2 | Dmitry Eremin-Solenikov | default:
|
1472 | 5bc95aa2 | Dmitry Eremin-Solenikov | printf("%s: Bad register 0x" TARGET_FMT_plx "\n", __func__, addr); |
1473 | 5bc95aa2 | Dmitry Eremin-Solenikov | break;
|
1474 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1475 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1476 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1477 | eb2fefbc | Avi Kivity | static const MemoryRegionOps strongarm_ssp_ops = { |
1478 | eb2fefbc | Avi Kivity | .read = strongarm_ssp_read, |
1479 | eb2fefbc | Avi Kivity | .write = strongarm_ssp_write, |
1480 | eb2fefbc | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1481 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
1482 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1483 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_ssp_post_load(void *opaque, int version_id) |
1484 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1485 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMSSPState *s = opaque; |
1486 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1487 | 5bc95aa2 | Dmitry Eremin-Solenikov | strongarm_ssp_fifo_update(s); |
1488 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1489 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1490 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1491 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1492 | 5bc95aa2 | Dmitry Eremin-Solenikov | static int strongarm_ssp_init(SysBusDevice *dev) |
1493 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1494 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMSSPState *s = FROM_SYSBUS(StrongARMSSPState, dev); |
1495 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1496 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_init_irq(dev, &s->irq); |
1497 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1498 | eb2fefbc | Avi Kivity | memory_region_init_io(&s->iomem, &strongarm_ssp_ops, s, "ssp", 0x1000); |
1499 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->iomem); |
1500 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1501 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->bus = ssi_create_bus(&dev->qdev, "ssi");
|
1502 | 5bc95aa2 | Dmitry Eremin-Solenikov | return 0; |
1503 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1504 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1505 | 5bc95aa2 | Dmitry Eremin-Solenikov | static void strongarm_ssp_reset(DeviceState *dev) |
1506 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1507 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMSSPState *s = DO_UPCAST(StrongARMSSPState, busdev.qdev, dev); |
1508 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->sssr = 0x03; /* 3 bit data, SPI, disabled */ |
1509 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_start = 0;
|
1510 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->rx_level = 0;
|
1511 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1512 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1513 | 5bc95aa2 | Dmitry Eremin-Solenikov | static const VMStateDescription vmstate_strongarm_ssp_regs = { |
1514 | 5bc95aa2 | Dmitry Eremin-Solenikov | .name = "strongarm-ssp",
|
1515 | 5bc95aa2 | Dmitry Eremin-Solenikov | .version_id = 0,
|
1516 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id = 0,
|
1517 | 5bc95aa2 | Dmitry Eremin-Solenikov | .minimum_version_id_old = 0,
|
1518 | 5bc95aa2 | Dmitry Eremin-Solenikov | .post_load = strongarm_ssp_post_load, |
1519 | 5bc95aa2 | Dmitry Eremin-Solenikov | .fields = (VMStateField[]) { |
1520 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT16_ARRAY(sscr, StrongARMSSPState, 2),
|
1521 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT16(sssr, StrongARMSSPState), |
1522 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT16_ARRAY(rx_fifo, StrongARMSSPState, 8),
|
1523 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(rx_start, StrongARMSSPState), |
1524 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_UINT8(rx_level, StrongARMSSPState), |
1525 | 5bc95aa2 | Dmitry Eremin-Solenikov | VMSTATE_END_OF_LIST(), |
1526 | 5bc95aa2 | Dmitry Eremin-Solenikov | }, |
1527 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
1528 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1529 | 999e12bb | Anthony Liguori | static void strongarm_ssp_class_init(ObjectClass *klass, void *data) |
1530 | 999e12bb | Anthony Liguori | { |
1531 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
1532 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
1533 | 999e12bb | Anthony Liguori | |
1534 | 999e12bb | Anthony Liguori | k->init = strongarm_ssp_init; |
1535 | 39bffca2 | Anthony Liguori | dc->desc = "StrongARM SSP controller";
|
1536 | 39bffca2 | Anthony Liguori | dc->reset = strongarm_ssp_reset; |
1537 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_strongarm_ssp_regs; |
1538 | 999e12bb | Anthony Liguori | } |
1539 | 999e12bb | Anthony Liguori | |
1540 | 39bffca2 | Anthony Liguori | static TypeInfo strongarm_ssp_info = {
|
1541 | 39bffca2 | Anthony Liguori | .name = "strongarm-ssp",
|
1542 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
1543 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(StrongARMSSPState),
|
1544 | 39bffca2 | Anthony Liguori | .class_init = strongarm_ssp_class_init, |
1545 | 5bc95aa2 | Dmitry Eremin-Solenikov | }; |
1546 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1547 | 5bc95aa2 | Dmitry Eremin-Solenikov | /* Main CPU functions */
|
1548 | eb2fefbc | Avi Kivity | StrongARMState *sa1110_init(MemoryRegion *sysmem, |
1549 | eb2fefbc | Avi Kivity | unsigned int sdram_size, const char *rev) |
1550 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1551 | 5bc95aa2 | Dmitry Eremin-Solenikov | StrongARMState *s; |
1552 | 5bc95aa2 | Dmitry Eremin-Solenikov | qemu_irq *pic; |
1553 | 5bc95aa2 | Dmitry Eremin-Solenikov | int i;
|
1554 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1555 | 7267c094 | Anthony Liguori | s = g_malloc0(sizeof(StrongARMState));
|
1556 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1557 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (!rev) {
|
1558 | 5bc95aa2 | Dmitry Eremin-Solenikov | rev = "sa1110-b5";
|
1559 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1560 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1561 | 5bc95aa2 | Dmitry Eremin-Solenikov | if (strncmp(rev, "sa1110", 6)) { |
1562 | 6daf194d | Markus Armbruster | error_report("Machine requires a SA1110 processor.");
|
1563 | 5bc95aa2 | Dmitry Eremin-Solenikov | exit(1);
|
1564 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1565 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1566 | 8bf502e2 | Andreas Färber | s->cpu = cpu_arm_init(rev); |
1567 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1568 | 8bf502e2 | Andreas Färber | if (!s->cpu) {
|
1569 | 6daf194d | Markus Armbruster | error_report("Unable to find CPU definition");
|
1570 | 5bc95aa2 | Dmitry Eremin-Solenikov | exit(1);
|
1571 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1572 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1573 | c5705a77 | Avi Kivity | memory_region_init_ram(&s->sdram, "strongarm.sdram", sdram_size);
|
1574 | c5705a77 | Avi Kivity | vmstate_register_ram_global(&s->sdram); |
1575 | eb2fefbc | Avi Kivity | memory_region_add_subregion(sysmem, SA_SDCS0, &s->sdram); |
1576 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1577 | 4bd74661 | Andreas Färber | pic = arm_pic_init_cpu(s->cpu); |
1578 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->pic = sysbus_create_varargs("strongarm_pic", 0x90050000, |
1579 | 5bc95aa2 | Dmitry Eremin-Solenikov | pic[ARM_PIC_CPU_IRQ], pic[ARM_PIC_CPU_FIQ], NULL);
|
1580 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1581 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_create_varargs("pxa25x-timer", 0x90000000, |
1582 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(s->pic, SA_PIC_OSTC0), |
1583 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(s->pic, SA_PIC_OSTC1), |
1584 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(s->pic, SA_PIC_OSTC2), |
1585 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(s->pic, SA_PIC_OSTC3), |
1586 | 5bc95aa2 | Dmitry Eremin-Solenikov | NULL);
|
1587 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1588 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_create_simple("strongarm-rtc", 0x90010000, |
1589 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(s->pic, SA_PIC_RTC_ALARM)); |
1590 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1591 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->gpio = strongarm_gpio_init(0x90040000, s->pic);
|
1592 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1593 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ppc = sysbus_create_varargs("strongarm-ppc", 0x90060000, NULL); |
1594 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1595 | 5bc95aa2 | Dmitry Eremin-Solenikov | for (i = 0; sa_serial[i].io_base; i++) { |
1596 | 5bc95aa2 | Dmitry Eremin-Solenikov | DeviceState *dev = qdev_create(NULL, "strongarm-uart"); |
1597 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_prop_set_chr(dev, "chardev", serial_hds[i]);
|
1598 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_init_nofail(dev); |
1599 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_mmio_map(sysbus_from_qdev(dev), 0,
|
1600 | 5bc95aa2 | Dmitry Eremin-Solenikov | sa_serial[i].io_base); |
1601 | 5bc95aa2 | Dmitry Eremin-Solenikov | sysbus_connect_irq(sysbus_from_qdev(dev), 0,
|
1602 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(s->pic, sa_serial[i].irq)); |
1603 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1604 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1605 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ssp = sysbus_create_varargs("strongarm-ssp", 0x80070000, |
1606 | 5bc95aa2 | Dmitry Eremin-Solenikov | qdev_get_gpio_in(s->pic, SA_PIC_SSP), NULL);
|
1607 | 5bc95aa2 | Dmitry Eremin-Solenikov | s->ssp_bus = (SSIBus *)qdev_get_child_bus(s->ssp, "ssi");
|
1608 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1609 | 5bc95aa2 | Dmitry Eremin-Solenikov | return s;
|
1610 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1611 | 5bc95aa2 | Dmitry Eremin-Solenikov | |
1612 | 83f7d43a | Andreas Färber | static void strongarm_register_types(void) |
1613 | 5bc95aa2 | Dmitry Eremin-Solenikov | { |
1614 | 39bffca2 | Anthony Liguori | type_register_static(&strongarm_pic_info); |
1615 | 39bffca2 | Anthony Liguori | type_register_static(&strongarm_rtc_sysbus_info); |
1616 | 39bffca2 | Anthony Liguori | type_register_static(&strongarm_gpio_info); |
1617 | 39bffca2 | Anthony Liguori | type_register_static(&strongarm_ppc_info); |
1618 | 39bffca2 | Anthony Liguori | type_register_static(&strongarm_uart_info); |
1619 | 39bffca2 | Anthony Liguori | type_register_static(&strongarm_ssp_info); |
1620 | 5bc95aa2 | Dmitry Eremin-Solenikov | } |
1621 | 83f7d43a | Andreas Färber | |
1622 | 83f7d43a | Andreas Färber | type_init(strongarm_register_types) |