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1 | 5856de80 | ths | /*
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2 | 5856de80 | ths | * QEMU Malta board support
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3 | 5856de80 | ths | *
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4 | 5856de80 | ths | * Copyright (c) 2006 Aurelien Jarno
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5 | 5856de80 | ths | *
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6 | 5856de80 | ths | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 5856de80 | ths | * of this software and associated documentation files (the "Software"), to deal
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8 | 5856de80 | ths | * in the Software without restriction, including without limitation the rights
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9 | 5856de80 | ths | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 5856de80 | ths | * copies of the Software, and to permit persons to whom the Software is
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11 | 5856de80 | ths | * furnished to do so, subject to the following conditions:
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12 | 5856de80 | ths | *
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13 | 5856de80 | ths | * The above copyright notice and this permission notice shall be included in
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14 | 5856de80 | ths | * all copies or substantial portions of the Software.
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15 | 5856de80 | ths | *
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16 | 5856de80 | ths | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 5856de80 | ths | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 5856de80 | ths | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 5856de80 | ths | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 5856de80 | ths | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 5856de80 | ths | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 5856de80 | ths | * THE SOFTWARE.
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23 | 5856de80 | ths | */
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24 | 5856de80 | ths | |
25 | 5856de80 | ths | #include "vl.h" |
26 | 5856de80 | ths | |
27 | 44cbbf18 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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28 | 44cbbf18 | ths | #define BIOS_FILENAME "mips_bios.bin" |
29 | 44cbbf18 | ths | #else
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30 | 44cbbf18 | ths | #define BIOS_FILENAME "mipsel_bios.bin" |
31 | 44cbbf18 | ths | #endif
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32 | 44cbbf18 | ths | |
33 | 5856de80 | ths | #ifdef MIPS_HAS_MIPS64
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34 | 44cbbf18 | ths | #define INITRD_LOAD_ADDR (int64_t)0x80800000 |
35 | 5856de80 | ths | #else
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36 | 44cbbf18 | ths | #define INITRD_LOAD_ADDR (int32_t)0x80800000 |
37 | 5856de80 | ths | #endif
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38 | 5856de80 | ths | |
39 | 3ddd0065 | ths | #define ENVP_ADDR (int32_t)0x80002000 |
40 | 44cbbf18 | ths | #define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000)) |
41 | 5856de80 | ths | |
42 | 5856de80 | ths | #define ENVP_NB_ENTRIES 16 |
43 | 5856de80 | ths | #define ENVP_ENTRY_SIZE 256 |
44 | 5856de80 | ths | |
45 | 5856de80 | ths | |
46 | 5856de80 | ths | extern FILE *logfile;
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47 | 5856de80 | ths | |
48 | 5856de80 | ths | typedef struct { |
49 | 5856de80 | ths | uint32_t leds; |
50 | 5856de80 | ths | uint32_t brk; |
51 | 5856de80 | ths | uint32_t gpout; |
52 | 130751ee | ths | uint32_t i2cin; |
53 | 5856de80 | ths | uint32_t i2coe; |
54 | 5856de80 | ths | uint32_t i2cout; |
55 | 5856de80 | ths | uint32_t i2csel; |
56 | 5856de80 | ths | CharDriverState *display; |
57 | 5856de80 | ths | char display_text[9]; |
58 | 5856de80 | ths | } MaltaFPGAState; |
59 | 5856de80 | ths | |
60 | 5856de80 | ths | static PITState *pit;
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61 | 5856de80 | ths | |
62 | 4de9b249 | ths | /* The 8259 is attached to the MIPS CPU INT0 pin, ie interrupt 2 */
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63 | 5856de80 | ths | static void pic_irq_request(void *opaque, int level) |
64 | 5856de80 | ths | { |
65 | 4de9b249 | ths | cpu_mips_irq_request(opaque, 2, level);
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66 | 5856de80 | ths | } |
67 | 5856de80 | ths | |
68 | 5856de80 | ths | /* Malta FPGA */
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69 | 5856de80 | ths | static void malta_fpga_update_display(void *opaque) |
70 | 5856de80 | ths | { |
71 | 5856de80 | ths | char leds_text[9]; |
72 | 5856de80 | ths | int i;
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73 | 5856de80 | ths | MaltaFPGAState *s = opaque; |
74 | 5856de80 | ths | |
75 | 5856de80 | ths | for (i = 7 ; i >= 0 ; i--) { |
76 | 5856de80 | ths | if (s->leds & (1 << i)) |
77 | 5856de80 | ths | leds_text[i] = '#';
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78 | 5856de80 | ths | else
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79 | 5856de80 | ths | leds_text[i] = ' ';
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80 | 5856de80 | ths | } |
81 | 5856de80 | ths | leds_text[8] = '\0'; |
82 | 5856de80 | ths | |
83 | 472c5273 | ths | qemu_chr_printf(s->display, "\e[H\n\n|\e[32m%-8.8s\e[00m|\r\n", leds_text); |
84 | 472c5273 | ths | qemu_chr_printf(s->display, "\n\n\n\n|\e[31m%-8.8s\e[00m|", s->display_text); |
85 | 5856de80 | ths | } |
86 | 5856de80 | ths | |
87 | 130751ee | ths | /*
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88 | 130751ee | ths | * EEPROM 24C01 / 24C02 emulation.
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89 | 130751ee | ths | *
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90 | 130751ee | ths | * Emulation for serial EEPROMs:
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91 | 130751ee | ths | * 24C01 - 1024 bit (128 x 8)
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92 | 130751ee | ths | * 24C02 - 2048 bit (256 x 8)
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93 | 130751ee | ths | *
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94 | 130751ee | ths | * Typical device names include Microchip 24C02SC or SGS Thomson ST24C02.
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95 | 130751ee | ths | */
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96 | 130751ee | ths | |
97 | 130751ee | ths | //~ #define DEBUG
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98 | 130751ee | ths | |
99 | 130751ee | ths | #if defined(DEBUG)
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100 | 130751ee | ths | # define logout(fmt, args...) fprintf(stderr, "MALTA\t%-24s" fmt, __func__, ##args) |
101 | 130751ee | ths | #else
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102 | 130751ee | ths | # define logout(fmt, args...) ((void)0) |
103 | 130751ee | ths | #endif
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104 | 130751ee | ths | |
105 | 130751ee | ths | struct _eeprom24c0x_t {
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106 | 130751ee | ths | uint8_t tick; |
107 | 130751ee | ths | uint8_t address; |
108 | 130751ee | ths | uint8_t command; |
109 | 130751ee | ths | uint8_t ack; |
110 | 130751ee | ths | uint8_t scl; |
111 | 130751ee | ths | uint8_t sda; |
112 | 130751ee | ths | uint8_t data; |
113 | 130751ee | ths | //~ uint16_t size;
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114 | 130751ee | ths | uint8_t contents[256];
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115 | 130751ee | ths | }; |
116 | 130751ee | ths | |
117 | 130751ee | ths | typedef struct _eeprom24c0x_t eeprom24c0x_t; |
118 | 130751ee | ths | |
119 | 130751ee | ths | static eeprom24c0x_t eeprom = {
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120 | 130751ee | ths | contents: {
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121 | 130751ee | ths | /* 00000000: */ 0x80,0x08,0x04,0x0D,0x0A,0x01,0x40,0x00, |
122 | 130751ee | ths | /* 00000008: */ 0x01,0x75,0x54,0x00,0x82,0x08,0x00,0x01, |
123 | 130751ee | ths | /* 00000010: */ 0x8F,0x04,0x02,0x01,0x01,0x00,0x0E,0x00, |
124 | 130751ee | ths | /* 00000018: */ 0x00,0x00,0x00,0x14,0x0F,0x14,0x2D,0x40, |
125 | 130751ee | ths | /* 00000020: */ 0x15,0x08,0x15,0x08,0x00,0x00,0x00,0x00, |
126 | 130751ee | ths | /* 00000028: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
127 | 130751ee | ths | /* 00000030: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
128 | 130751ee | ths | /* 00000038: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x12,0xD0, |
129 | 130751ee | ths | /* 00000040: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
130 | 130751ee | ths | /* 00000048: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
131 | 130751ee | ths | /* 00000050: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
132 | 130751ee | ths | /* 00000058: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
133 | 130751ee | ths | /* 00000060: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
134 | 130751ee | ths | /* 00000068: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
135 | 130751ee | ths | /* 00000070: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
136 | 130751ee | ths | /* 00000078: */ 0x00,0x00,0x00,0x00,0x00,0x00,0x64,0xF4, |
137 | 130751ee | ths | }, |
138 | 130751ee | ths | }; |
139 | 130751ee | ths | |
140 | 130751ee | ths | static uint8_t eeprom24c0x_read()
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141 | 130751ee | ths | { |
142 | 130751ee | ths | logout("%u: scl = %u, sda = %u, data = 0x%02x\n",
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143 | 130751ee | ths | eeprom.tick, eeprom.scl, eeprom.sda, eeprom.data); |
144 | 130751ee | ths | return eeprom.sda;
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145 | 130751ee | ths | } |
146 | 130751ee | ths | |
147 | 130751ee | ths | static void eeprom24c0x_write(int scl, int sda) |
148 | 130751ee | ths | { |
149 | 130751ee | ths | if (eeprom.scl && scl && (eeprom.sda != sda)) {
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150 | 130751ee | ths | logout("%u: scl = %u->%u, sda = %u->%u i2c %s\n",
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151 | 130751ee | ths | eeprom.tick, eeprom.scl, scl, eeprom.sda, sda, sda ? "stop" : "start"); |
152 | 130751ee | ths | if (!sda) {
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153 | 130751ee | ths | eeprom.tick = 1;
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154 | 130751ee | ths | eeprom.command = 0;
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155 | 130751ee | ths | } |
156 | 130751ee | ths | } else if (eeprom.tick == 0 && !eeprom.ack) { |
157 | 130751ee | ths | /* Waiting for start. */
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158 | 130751ee | ths | logout("%u: scl = %u->%u, sda = %u->%u wait for i2c start\n",
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159 | 130751ee | ths | eeprom.tick, eeprom.scl, scl, eeprom.sda, sda); |
160 | 130751ee | ths | } else if (!eeprom.scl && scl) { |
161 | 130751ee | ths | logout("%u: scl = %u->%u, sda = %u->%u trigger bit\n",
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162 | 130751ee | ths | eeprom.tick, eeprom.scl, scl, eeprom.sda, sda); |
163 | 130751ee | ths | if (eeprom.ack) {
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164 | 130751ee | ths | logout("\ti2c ack bit = 0\n");
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165 | 130751ee | ths | sda = 0;
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166 | 130751ee | ths | eeprom.ack = 0;
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167 | 130751ee | ths | } else if (eeprom.sda == sda) { |
168 | 130751ee | ths | uint8_t bit = (sda != 0);
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169 | 130751ee | ths | logout("\ti2c bit = %d\n", bit);
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170 | 130751ee | ths | if (eeprom.tick < 9) { |
171 | 130751ee | ths | eeprom.command <<= 1;
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172 | 130751ee | ths | eeprom.command += bit; |
173 | 130751ee | ths | eeprom.tick++; |
174 | 130751ee | ths | if (eeprom.tick == 9) { |
175 | 130751ee | ths | logout("\tcommand 0x%04x, %s\n", eeprom.command, bit ? "read" : "write"); |
176 | 130751ee | ths | eeprom.ack = 1;
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177 | 130751ee | ths | } |
178 | 130751ee | ths | } else if (eeprom.tick < 17) { |
179 | 130751ee | ths | if (eeprom.command & 1) { |
180 | 130751ee | ths | sda = ((eeprom.data & 0x80) != 0); |
181 | 130751ee | ths | } |
182 | 130751ee | ths | eeprom.address <<= 1;
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183 | 130751ee | ths | eeprom.address += bit; |
184 | 130751ee | ths | eeprom.tick++; |
185 | 130751ee | ths | eeprom.data <<= 1;
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186 | 130751ee | ths | if (eeprom.tick == 17) { |
187 | 130751ee | ths | eeprom.data = eeprom.contents[eeprom.address]; |
188 | 130751ee | ths | logout("\taddress 0x%04x, data 0x%02x\n", eeprom.address, eeprom.data);
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189 | 130751ee | ths | eeprom.ack = 1;
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190 | 130751ee | ths | eeprom.tick = 0;
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191 | 130751ee | ths | } |
192 | 130751ee | ths | } else if (eeprom.tick >= 17) { |
193 | 130751ee | ths | sda = 0;
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194 | 130751ee | ths | } |
195 | 130751ee | ths | } else {
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196 | 130751ee | ths | logout("\tsda changed with raising scl\n");
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197 | 130751ee | ths | } |
198 | 130751ee | ths | } else {
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199 | 130751ee | ths | logout("%u: scl = %u->%u, sda = %u->%u\n", eeprom.tick, eeprom.scl, scl, eeprom.sda, sda);
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200 | 130751ee | ths | } |
201 | 130751ee | ths | eeprom.scl = scl; |
202 | 130751ee | ths | eeprom.sda = sda; |
203 | 130751ee | ths | } |
204 | 130751ee | ths | |
205 | 5856de80 | ths | static uint32_t malta_fpga_readl(void *opaque, target_phys_addr_t addr) |
206 | 5856de80 | ths | { |
207 | 5856de80 | ths | MaltaFPGAState *s = opaque; |
208 | 5856de80 | ths | uint32_t val = 0;
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209 | 5856de80 | ths | uint32_t saddr; |
210 | 5856de80 | ths | |
211 | 5856de80 | ths | saddr = (addr & 0xfffff);
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212 | 5856de80 | ths | |
213 | 5856de80 | ths | switch (saddr) {
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214 | 5856de80 | ths | |
215 | 5856de80 | ths | /* SWITCH Register */
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216 | 5856de80 | ths | case 0x00200: |
217 | 5856de80 | ths | val = 0x00000000; /* All switches closed */ |
218 | 5856de80 | ths | break;
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219 | 5856de80 | ths | |
220 | 5856de80 | ths | /* STATUS Register */
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221 | 5856de80 | ths | case 0x00208: |
222 | 5856de80 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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223 | 5856de80 | ths | val = 0x00000012;
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224 | 5856de80 | ths | #else
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225 | 5856de80 | ths | val = 0x00000010;
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226 | 5856de80 | ths | #endif
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227 | 5856de80 | ths | break;
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228 | 5856de80 | ths | |
229 | 5856de80 | ths | /* JMPRS Register */
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230 | 5856de80 | ths | case 0x00210: |
231 | 5856de80 | ths | val = 0x00;
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232 | 5856de80 | ths | break;
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233 | 5856de80 | ths | |
234 | 5856de80 | ths | /* LEDBAR Register */
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235 | 5856de80 | ths | case 0x00408: |
236 | 5856de80 | ths | val = s->leds; |
237 | 5856de80 | ths | break;
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238 | 5856de80 | ths | |
239 | 5856de80 | ths | /* BRKRES Register */
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240 | 5856de80 | ths | case 0x00508: |
241 | 5856de80 | ths | val = s->brk; |
242 | 5856de80 | ths | break;
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243 | 5856de80 | ths | |
244 | 5856de80 | ths | /* GPOUT Register */
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245 | 5856de80 | ths | case 0x00a00: |
246 | 5856de80 | ths | val = s->gpout; |
247 | 5856de80 | ths | break;
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248 | 5856de80 | ths | |
249 | 5856de80 | ths | /* XXX: implement a real I2C controller */
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250 | 5856de80 | ths | |
251 | 5856de80 | ths | /* GPINP Register */
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252 | 5856de80 | ths | case 0x00a08: |
253 | 5856de80 | ths | /* IN = OUT until a real I2C control is implemented */
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254 | 5856de80 | ths | if (s->i2csel)
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255 | 5856de80 | ths | val = s->i2cout; |
256 | 5856de80 | ths | else
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257 | 5856de80 | ths | val = 0x00;
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258 | 5856de80 | ths | break;
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259 | 5856de80 | ths | |
260 | 5856de80 | ths | /* I2CINP Register */
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261 | 5856de80 | ths | case 0x00b00: |
262 | 130751ee | ths | val = ((s->i2cin & ~1) | eeprom24c0x_read());
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263 | 5856de80 | ths | break;
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264 | 5856de80 | ths | |
265 | 5856de80 | ths | /* I2COE Register */
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266 | 5856de80 | ths | case 0x00b08: |
267 | 5856de80 | ths | val = s->i2coe; |
268 | 5856de80 | ths | break;
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269 | 5856de80 | ths | |
270 | 5856de80 | ths | /* I2COUT Register */
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271 | 5856de80 | ths | case 0x00b10: |
272 | 5856de80 | ths | val = s->i2cout; |
273 | 5856de80 | ths | break;
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274 | 5856de80 | ths | |
275 | 5856de80 | ths | /* I2CSEL Register */
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276 | 5856de80 | ths | case 0x00b18: |
277 | 130751ee | ths | val = s->i2csel; |
278 | 5856de80 | ths | break;
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279 | 5856de80 | ths | |
280 | 5856de80 | ths | default:
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281 | 5856de80 | ths | #if 0
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282 | 3594c774 | ths | printf ("malta_fpga_read: Bad register offset 0x" TARGET_FMT_lx "\n",
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283 | 44cbbf18 | ths | addr);
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284 | 5856de80 | ths | #endif
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285 | 5856de80 | ths | break;
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286 | 5856de80 | ths | } |
287 | 5856de80 | ths | return val;
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288 | 5856de80 | ths | } |
289 | 5856de80 | ths | |
290 | 5856de80 | ths | static void malta_fpga_writel(void *opaque, target_phys_addr_t addr, |
291 | 5856de80 | ths | uint32_t val) |
292 | 5856de80 | ths | { |
293 | 5856de80 | ths | MaltaFPGAState *s = opaque; |
294 | 5856de80 | ths | uint32_t saddr; |
295 | 5856de80 | ths | |
296 | 5856de80 | ths | saddr = (addr & 0xfffff);
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297 | 5856de80 | ths | |
298 | 5856de80 | ths | switch (saddr) {
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299 | 5856de80 | ths | |
300 | 5856de80 | ths | /* SWITCH Register */
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301 | 5856de80 | ths | case 0x00200: |
302 | 5856de80 | ths | break;
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303 | 5856de80 | ths | |
304 | 5856de80 | ths | /* JMPRS Register */
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305 | 5856de80 | ths | case 0x00210: |
306 | 5856de80 | ths | break;
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307 | 5856de80 | ths | |
308 | 5856de80 | ths | /* LEDBAR Register */
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309 | 5856de80 | ths | /* XXX: implement a 8-LED array */
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310 | 5856de80 | ths | case 0x00408: |
311 | 5856de80 | ths | s->leds = val & 0xff;
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312 | 5856de80 | ths | break;
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313 | 5856de80 | ths | |
314 | 5856de80 | ths | /* ASCIIWORD Register */
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315 | 5856de80 | ths | case 0x00410: |
316 | 5856de80 | ths | snprintf(s->display_text, 9, "%08X", val); |
317 | 5856de80 | ths | malta_fpga_update_display(s); |
318 | 5856de80 | ths | break;
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319 | 5856de80 | ths | |
320 | 5856de80 | ths | /* ASCIIPOS0 to ASCIIPOS7 Registers */
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321 | 5856de80 | ths | case 0x00418: |
322 | 5856de80 | ths | case 0x00420: |
323 | 5856de80 | ths | case 0x00428: |
324 | 5856de80 | ths | case 0x00430: |
325 | 5856de80 | ths | case 0x00438: |
326 | 5856de80 | ths | case 0x00440: |
327 | 5856de80 | ths | case 0x00448: |
328 | 5856de80 | ths | case 0x00450: |
329 | 5856de80 | ths | s->display_text[(saddr - 0x00418) >> 3] = (char) val; |
330 | 5856de80 | ths | malta_fpga_update_display(s); |
331 | 5856de80 | ths | break;
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332 | 5856de80 | ths | |
333 | 5856de80 | ths | /* SOFTRES Register */
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334 | 5856de80 | ths | case 0x00500: |
335 | 5856de80 | ths | if (val == 0x42) |
336 | 5856de80 | ths | qemu_system_reset_request (); |
337 | 5856de80 | ths | break;
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338 | 5856de80 | ths | |
339 | 5856de80 | ths | /* BRKRES Register */
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340 | 5856de80 | ths | case 0x00508: |
341 | 5856de80 | ths | s->brk = val & 0xff;
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342 | 5856de80 | ths | break;
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343 | 5856de80 | ths | |
344 | 5856de80 | ths | /* GPOUT Register */
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345 | 5856de80 | ths | case 0x00a00: |
346 | 5856de80 | ths | s->gpout = val & 0xff;
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347 | 5856de80 | ths | break;
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348 | 5856de80 | ths | |
349 | 5856de80 | ths | /* I2COE Register */
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350 | 5856de80 | ths | case 0x00b08: |
351 | 5856de80 | ths | s->i2coe = val & 0x03;
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352 | 5856de80 | ths | break;
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353 | 5856de80 | ths | |
354 | 5856de80 | ths | /* I2COUT Register */
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355 | 5856de80 | ths | case 0x00b10: |
356 | 130751ee | ths | eeprom24c0x_write(val & 0x02, val & 0x01); |
357 | 130751ee | ths | s->i2cout = val; |
358 | 5856de80 | ths | break;
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359 | 5856de80 | ths | |
360 | 5856de80 | ths | /* I2CSEL Register */
|
361 | 5856de80 | ths | case 0x00b18: |
362 | 130751ee | ths | s->i2csel = val & 0x01;
|
363 | 5856de80 | ths | break;
|
364 | 5856de80 | ths | |
365 | 5856de80 | ths | default:
|
366 | 5856de80 | ths | #if 0
|
367 | 3594c774 | ths | printf ("malta_fpga_write: Bad register offset 0x" TARGET_FMT_lx "\n",
|
368 | 44cbbf18 | ths | addr);
|
369 | 5856de80 | ths | #endif
|
370 | 5856de80 | ths | break;
|
371 | 5856de80 | ths | } |
372 | 5856de80 | ths | } |
373 | 5856de80 | ths | |
374 | 5856de80 | ths | static CPUReadMemoryFunc *malta_fpga_read[] = {
|
375 | 5856de80 | ths | malta_fpga_readl, |
376 | 5856de80 | ths | malta_fpga_readl, |
377 | 5856de80 | ths | malta_fpga_readl |
378 | 5856de80 | ths | }; |
379 | 5856de80 | ths | |
380 | 5856de80 | ths | static CPUWriteMemoryFunc *malta_fpga_write[] = {
|
381 | 5856de80 | ths | malta_fpga_writel, |
382 | 5856de80 | ths | malta_fpga_writel, |
383 | 5856de80 | ths | malta_fpga_writel |
384 | 5856de80 | ths | }; |
385 | 5856de80 | ths | |
386 | 5856de80 | ths | void malta_fpga_reset(void *opaque) |
387 | 5856de80 | ths | { |
388 | 5856de80 | ths | MaltaFPGAState *s = opaque; |
389 | 5856de80 | ths | |
390 | 5856de80 | ths | s->leds = 0x00;
|
391 | 5856de80 | ths | s->brk = 0x0a;
|
392 | 5856de80 | ths | s->gpout = 0x00;
|
393 | 130751ee | ths | s->i2cin = 0x3;
|
394 | 5856de80 | ths | s->i2coe = 0x0;
|
395 | 5856de80 | ths | s->i2cout = 0x3;
|
396 | 5856de80 | ths | s->i2csel = 0x1;
|
397 | 5856de80 | ths | |
398 | 5856de80 | ths | s->display_text[8] = '\0'; |
399 | 5856de80 | ths | snprintf(s->display_text, 9, " "); |
400 | 5856de80 | ths | malta_fpga_update_display(s); |
401 | 5856de80 | ths | } |
402 | 5856de80 | ths | |
403 | 5856de80 | ths | MaltaFPGAState *malta_fpga_init(target_phys_addr_t base) |
404 | 5856de80 | ths | { |
405 | 5856de80 | ths | MaltaFPGAState *s; |
406 | 5856de80 | ths | int malta;
|
407 | 5856de80 | ths | |
408 | 5856de80 | ths | s = (MaltaFPGAState *)qemu_mallocz(sizeof(MaltaFPGAState));
|
409 | 5856de80 | ths | |
410 | 5856de80 | ths | malta = cpu_register_io_memory(0, malta_fpga_read,
|
411 | 5856de80 | ths | malta_fpga_write, s); |
412 | 5856de80 | ths | cpu_register_physical_memory(base, 0x100000, malta);
|
413 | 5856de80 | ths | |
414 | 5856de80 | ths | s->display = qemu_chr_open("vc");
|
415 | af23902b | ths | qemu_chr_printf(s->display, "\e[HMalta LEDBAR\r\n"); |
416 | 5856de80 | ths | qemu_chr_printf(s->display, "+--------+\r\n");
|
417 | 5856de80 | ths | qemu_chr_printf(s->display, "+ +\r\n");
|
418 | 5856de80 | ths | qemu_chr_printf(s->display, "+--------+\r\n");
|
419 | 5856de80 | ths | qemu_chr_printf(s->display, "\n");
|
420 | 5856de80 | ths | qemu_chr_printf(s->display, "Malta ASCII\r\n");
|
421 | 5856de80 | ths | qemu_chr_printf(s->display, "+--------+\r\n");
|
422 | 5856de80 | ths | qemu_chr_printf(s->display, "+ +\r\n");
|
423 | 5856de80 | ths | qemu_chr_printf(s->display, "+--------+\r\n");
|
424 | 5856de80 | ths | |
425 | 5856de80 | ths | malta_fpga_reset(s); |
426 | 5856de80 | ths | qemu_register_reset(malta_fpga_reset, s); |
427 | 5856de80 | ths | |
428 | 5856de80 | ths | return s;
|
429 | 5856de80 | ths | } |
430 | 5856de80 | ths | |
431 | 5856de80 | ths | /* Audio support */
|
432 | 5856de80 | ths | #ifdef HAS_AUDIO
|
433 | 5856de80 | ths | static void audio_init (PCIBus *pci_bus) |
434 | 5856de80 | ths | { |
435 | 5856de80 | ths | struct soundhw *c;
|
436 | 5856de80 | ths | int audio_enabled = 0; |
437 | 5856de80 | ths | |
438 | 5856de80 | ths | for (c = soundhw; !audio_enabled && c->name; ++c) {
|
439 | 5856de80 | ths | audio_enabled = c->enabled; |
440 | 5856de80 | ths | } |
441 | 5856de80 | ths | |
442 | 5856de80 | ths | if (audio_enabled) {
|
443 | 5856de80 | ths | AudioState *s; |
444 | 5856de80 | ths | |
445 | 5856de80 | ths | s = AUD_init (); |
446 | 5856de80 | ths | if (s) {
|
447 | 5856de80 | ths | for (c = soundhw; c->name; ++c) {
|
448 | 5856de80 | ths | if (c->enabled) {
|
449 | 5856de80 | ths | if (c->isa) {
|
450 | 5856de80 | ths | fprintf(stderr, "qemu: Unsupported Sound Card: %s\n", c->name);
|
451 | 5856de80 | ths | exit(1);
|
452 | 5856de80 | ths | } |
453 | 5856de80 | ths | else {
|
454 | 5856de80 | ths | if (pci_bus) {
|
455 | 5856de80 | ths | c->init.init_pci (pci_bus, s); |
456 | 5856de80 | ths | } |
457 | 5856de80 | ths | } |
458 | 5856de80 | ths | } |
459 | 5856de80 | ths | } |
460 | 5856de80 | ths | } |
461 | 5856de80 | ths | } |
462 | 5856de80 | ths | } |
463 | 5856de80 | ths | #endif
|
464 | 5856de80 | ths | |
465 | 5856de80 | ths | /* Network support */
|
466 | 5856de80 | ths | static void network_init (PCIBus *pci_bus) |
467 | 5856de80 | ths | { |
468 | 5856de80 | ths | int i;
|
469 | 5856de80 | ths | NICInfo *nd; |
470 | 5856de80 | ths | |
471 | 5856de80 | ths | for(i = 0; i < nb_nics; i++) { |
472 | 5856de80 | ths | nd = &nd_table[i]; |
473 | 5856de80 | ths | if (!nd->model) {
|
474 | 5856de80 | ths | nd->model = "pcnet";
|
475 | 5856de80 | ths | } |
476 | 5856de80 | ths | if (i == 0 && strcmp(nd->model, "pcnet") == 0) { |
477 | 5856de80 | ths | /* The malta board has a PCNet card using PCI SLOT 11 */
|
478 | 5856de80 | ths | pci_nic_init(pci_bus, nd, 88);
|
479 | 5856de80 | ths | } else {
|
480 | 5856de80 | ths | pci_nic_init(pci_bus, nd, -1);
|
481 | 5856de80 | ths | } |
482 | 5856de80 | ths | } |
483 | 5856de80 | ths | } |
484 | 5856de80 | ths | |
485 | 5856de80 | ths | /* ROM and pseudo bootloader
|
486 | 5856de80 | ths | |
487 | 5856de80 | ths | The following code implements a very very simple bootloader. It first
|
488 | 5856de80 | ths | loads the registers a0 to a3 to the values expected by the OS, and
|
489 | 5856de80 | ths | then jump at the kernel address.
|
490 | 5856de80 | ths | |
491 | 5856de80 | ths | The bootloader should pass the locations of the kernel arguments and
|
492 | 5856de80 | ths | environment variables tables. Those tables contain the 32-bit address
|
493 | 5856de80 | ths | of NULL terminated strings. The environment variables table should be
|
494 | 5856de80 | ths | terminated by a NULL address.
|
495 | 5856de80 | ths | |
496 | 5856de80 | ths | For a simpler implementation, the number of kernel arguments is fixed
|
497 | 5856de80 | ths | to two (the name of the kernel and the command line), and the two
|
498 | 5856de80 | ths | tables are actually the same one.
|
499 | 5856de80 | ths | |
500 | 5856de80 | ths | The registers a0 to a3 should contain the following values:
|
501 | 5856de80 | ths | a0 - number of kernel arguments
|
502 | 5856de80 | ths | a1 - 32-bit address of the kernel arguments table
|
503 | 5856de80 | ths | a2 - 32-bit address of the environment variables table
|
504 | 5856de80 | ths | a3 - RAM size in bytes
|
505 | 5856de80 | ths | */
|
506 | 5856de80 | ths | |
507 | 5856de80 | ths | static void write_bootloader (CPUState *env, unsigned long bios_offset, int64_t kernel_addr) |
508 | 5856de80 | ths | { |
509 | 5856de80 | ths | uint32_t *p; |
510 | 5856de80 | ths | |
511 | 5856de80 | ths | /* Small bootloader */
|
512 | 5856de80 | ths | p = (uint32_t *) (phys_ram_base + bios_offset); |
513 | 3ddd0065 | ths | stl_raw(p++, 0x0bf00010); /* j 0x1fc00040 */ |
514 | 3ddd0065 | ths | stl_raw(p++, 0x00000000); /* nop */ |
515 | 5856de80 | ths | |
516 | 5856de80 | ths | /* Second part of the bootloader */
|
517 | 5856de80 | ths | p = (uint32_t *) (phys_ram_base + bios_offset + 0x040);
|
518 | 3ddd0065 | ths | stl_raw(p++, 0x3c040000); /* lui a0, 0 */ |
519 | 3ddd0065 | ths | stl_raw(p++, 0x34840002); /* ori a0, a0, 2 */ |
520 | 3ddd0065 | ths | stl_raw(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */ |
521 | 3ddd0065 | ths | stl_raw(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a0, low(ENVP_ADDR) */ |
522 | 3ddd0065 | ths | stl_raw(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */ |
523 | 3ddd0065 | ths | stl_raw(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */ |
524 | 3ddd0065 | ths | stl_raw(p++, 0x3c070000 | (env->ram_size >> 16)); /* lui a3, high(env->ram_size) */ |
525 | 3ddd0065 | ths | stl_raw(p++, 0x34e70000 | (env->ram_size & 0xffff)); /* ori a3, a3, low(env->ram_size) */ |
526 | 3ddd0065 | ths | stl_raw(p++, 0x3c1f0000 | ((kernel_addr >> 16) & 0xffff)); /* lui ra, high(kernel_addr) */; |
527 | 3ddd0065 | ths | stl_raw(p++, 0x37ff0000 | (kernel_addr & 0xffff)); /* ori ra, ra, low(kernel_addr) */ |
528 | 3ddd0065 | ths | stl_raw(p++, 0x03e00008); /* jr ra */ |
529 | 3ddd0065 | ths | stl_raw(p++, 0x00000000); /* nop */ |
530 | 5856de80 | ths | } |
531 | 5856de80 | ths | |
532 | 5856de80 | ths | static void prom_set(int index, const char *string, ...) |
533 | 5856de80 | ths | { |
534 | 5856de80 | ths | va_list ap; |
535 | 3ddd0065 | ths | int32_t *p; |
536 | 3ddd0065 | ths | int32_t table_addr; |
537 | 5856de80 | ths | char *s;
|
538 | 5856de80 | ths | |
539 | 5856de80 | ths | if (index >= ENVP_NB_ENTRIES)
|
540 | 5856de80 | ths | return;
|
541 | 5856de80 | ths | |
542 | 3ddd0065 | ths | p = (int32_t *) (phys_ram_base + ENVP_ADDR + VIRT_TO_PHYS_ADDEND); |
543 | 5856de80 | ths | p += index; |
544 | 5856de80 | ths | |
545 | 5856de80 | ths | if (string == NULL) { |
546 | 5856de80 | ths | stl_raw(p, 0);
|
547 | 5856de80 | ths | return;
|
548 | 5856de80 | ths | } |
549 | 5856de80 | ths | |
550 | 3ddd0065 | ths | table_addr = ENVP_ADDR + sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE;
|
551 | 5856de80 | ths | s = (char *) (phys_ram_base + VIRT_TO_PHYS_ADDEND + table_addr);
|
552 | 5856de80 | ths | |
553 | 5856de80 | ths | stl_raw(p, table_addr); |
554 | 5856de80 | ths | |
555 | 5856de80 | ths | va_start(ap, string); |
556 | 5856de80 | ths | vsnprintf (s, ENVP_ENTRY_SIZE, string, ap); |
557 | 5856de80 | ths | va_end(ap); |
558 | 5856de80 | ths | } |
559 | 5856de80 | ths | |
560 | 5856de80 | ths | /* Kernel */
|
561 | 5856de80 | ths | static int64_t load_kernel (CPUState *env)
|
562 | 5856de80 | ths | { |
563 | 5856de80 | ths | int64_t kernel_addr = 0;
|
564 | 5856de80 | ths | int index = 0; |
565 | 5856de80 | ths | long initrd_size;
|
566 | 5856de80 | ths | |
567 | 5856de80 | ths | if (load_elf(env->kernel_filename, VIRT_TO_PHYS_ADDEND, &kernel_addr) < 0) { |
568 | 5856de80 | ths | fprintf(stderr, "qemu: could not load kernel '%s'\n",
|
569 | 5856de80 | ths | env->kernel_filename); |
570 | 5856de80 | ths | exit(1);
|
571 | 5856de80 | ths | } |
572 | 5856de80 | ths | |
573 | 5856de80 | ths | /* load initrd */
|
574 | 5856de80 | ths | initrd_size = 0;
|
575 | 5856de80 | ths | if (env->initrd_filename) {
|
576 | 5856de80 | ths | initrd_size = load_image(env->initrd_filename, |
577 | 5856de80 | ths | phys_ram_base + INITRD_LOAD_ADDR + VIRT_TO_PHYS_ADDEND); |
578 | 5856de80 | ths | if (initrd_size == (target_ulong) -1) { |
579 | 5856de80 | ths | fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
|
580 | 5856de80 | ths | env->initrd_filename); |
581 | 5856de80 | ths | exit(1);
|
582 | 5856de80 | ths | } |
583 | 5856de80 | ths | } |
584 | 5856de80 | ths | |
585 | 5856de80 | ths | /* Store command line. */
|
586 | 5856de80 | ths | prom_set(index++, env->kernel_filename); |
587 | 5856de80 | ths | if (initrd_size > 0) |
588 | 3594c774 | ths | prom_set(index++, "rd_start=0x" TARGET_FMT_lx " rd_size=%li %s", INITRD_LOAD_ADDR, initrd_size, env->kernel_cmdline); |
589 | 5856de80 | ths | else
|
590 | 5856de80 | ths | prom_set(index++, env->kernel_cmdline); |
591 | 5856de80 | ths | |
592 | 5856de80 | ths | /* Setup minimum environment variables */
|
593 | 5856de80 | ths | prom_set(index++, "memsize");
|
594 | 5856de80 | ths | prom_set(index++, "%i", env->ram_size);
|
595 | 5856de80 | ths | prom_set(index++, "modetty0");
|
596 | 5856de80 | ths | prom_set(index++, "38400n8r");
|
597 | 5856de80 | ths | prom_set(index++, NULL);
|
598 | 5856de80 | ths | |
599 | 5856de80 | ths | return kernel_addr;
|
600 | 5856de80 | ths | } |
601 | 5856de80 | ths | |
602 | 5856de80 | ths | static void main_cpu_reset(void *opaque) |
603 | 5856de80 | ths | { |
604 | 5856de80 | ths | CPUState *env = opaque; |
605 | 5856de80 | ths | cpu_reset(env); |
606 | 5856de80 | ths | |
607 | 5856de80 | ths | /* The bootload does not need to be rewritten as it is located in a
|
608 | 5856de80 | ths | read only location. The kernel location and the arguments table
|
609 | 5856de80 | ths | location does not change. */
|
610 | 5856de80 | ths | if (env->kernel_filename)
|
611 | 5856de80 | ths | load_kernel (env); |
612 | 5856de80 | ths | } |
613 | 5856de80 | ths | |
614 | 70705261 | ths | static
|
615 | 5856de80 | ths | void mips_malta_init (int ram_size, int vga_ram_size, int boot_device, |
616 | 5856de80 | ths | DisplayState *ds, const char **fd_filename, int snapshot, |
617 | 5856de80 | ths | const char *kernel_filename, const char *kernel_cmdline, |
618 | 94fc95cd | j_mayer | const char *initrd_filename, const char *cpu_model) |
619 | 5856de80 | ths | { |
620 | 5856de80 | ths | char buf[1024]; |
621 | 5856de80 | ths | unsigned long bios_offset; |
622 | 5856de80 | ths | int64_t kernel_addr; |
623 | 5856de80 | ths | PCIBus *pci_bus; |
624 | 5856de80 | ths | CPUState *env; |
625 | 5856de80 | ths | RTCState *rtc_state; |
626 | f1770b3e | ths | /* fdctrl_t *floppy_controller; */
|
627 | 5856de80 | ths | MaltaFPGAState *malta_fpga; |
628 | 5856de80 | ths | int ret;
|
629 | 33d68b5f | ths | mips_def_t *def; |
630 | 5856de80 | ths | |
631 | 33d68b5f | ths | /* init CPUs */
|
632 | 33d68b5f | ths | if (cpu_model == NULL) { |
633 | 33d68b5f | ths | #ifdef MIPS_HAS_MIPS64
|
634 | 33d68b5f | ths | cpu_model = "R4000";
|
635 | 33d68b5f | ths | #else
|
636 | 33d68b5f | ths | cpu_model = "4KEc";
|
637 | 33d68b5f | ths | #endif
|
638 | 33d68b5f | ths | } |
639 | 33d68b5f | ths | if (mips_find_by_name(cpu_model, &def) != 0) |
640 | 33d68b5f | ths | def = NULL;
|
641 | 5856de80 | ths | env = cpu_init(); |
642 | 33d68b5f | ths | cpu_mips_register(env, def); |
643 | 5856de80 | ths | register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); |
644 | 5856de80 | ths | qemu_register_reset(main_cpu_reset, env); |
645 | 5856de80 | ths | |
646 | 5856de80 | ths | /* allocate RAM */
|
647 | 5856de80 | ths | cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
|
648 | 5856de80 | ths | |
649 | 5856de80 | ths | /* Map the bios at two physical locations, as on the real board */
|
650 | 5856de80 | ths | bios_offset = ram_size + vga_ram_size; |
651 | 5856de80 | ths | cpu_register_physical_memory(0x1e000000LL,
|
652 | 5856de80 | ths | BIOS_SIZE, bios_offset | IO_MEM_ROM); |
653 | 5856de80 | ths | cpu_register_physical_memory(0x1fc00000LL,
|
654 | 5856de80 | ths | BIOS_SIZE, bios_offset | IO_MEM_ROM); |
655 | 5856de80 | ths | |
656 | 5856de80 | ths | /* Load a BIOS image except if a kernel image has been specified. In
|
657 | 5856de80 | ths | the later case, just write a small bootloader to the flash
|
658 | 5856de80 | ths | location. */
|
659 | 5856de80 | ths | if (kernel_filename) {
|
660 | 5856de80 | ths | env->ram_size = ram_size; |
661 | 5856de80 | ths | env->kernel_filename = kernel_filename; |
662 | 5856de80 | ths | env->kernel_cmdline = kernel_cmdline; |
663 | 5856de80 | ths | env->initrd_filename = initrd_filename; |
664 | 5856de80 | ths | kernel_addr = load_kernel(env); |
665 | 5856de80 | ths | write_bootloader(env, bios_offset, kernel_addr); |
666 | 5856de80 | ths | } else {
|
667 | 5856de80 | ths | snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); |
668 | 5856de80 | ths | ret = load_image(buf, phys_ram_base + bios_offset); |
669 | 331ad6f4 | ths | if (ret < 0 || ret > BIOS_SIZE) { |
670 | 5856de80 | ths | fprintf(stderr, "qemu: Warning, could not load MIPS bios '%s'\n",
|
671 | 5856de80 | ths | buf); |
672 | 5856de80 | ths | exit(1);
|
673 | 5856de80 | ths | } |
674 | 5856de80 | ths | } |
675 | 5856de80 | ths | |
676 | 5856de80 | ths | /* Board ID = 0x420 (Malta Board with CoreLV)
|
677 | 5856de80 | ths | XXX: theoretically 0x1e000010 should map to flash and 0x1fc00010 should
|
678 | 5856de80 | ths | map to the board ID. */
|
679 | 5856de80 | ths | stl_raw(phys_ram_base + bios_offset + 0x10, 0x00000420); |
680 | 5856de80 | ths | |
681 | 5856de80 | ths | /* Init internal devices */
|
682 | 5856de80 | ths | cpu_mips_clock_init(env); |
683 | 5856de80 | ths | cpu_mips_irqctrl_init(); |
684 | 5856de80 | ths | |
685 | 5856de80 | ths | /* FPGA */
|
686 | 5856de80 | ths | malta_fpga = malta_fpga_init(0x1f000000LL);
|
687 | 5856de80 | ths | |
688 | 5856de80 | ths | /* Interrupt controller */
|
689 | 5856de80 | ths | isa_pic = pic_init(pic_irq_request, env); |
690 | 5856de80 | ths | |
691 | 5856de80 | ths | /* Northbridge */
|
692 | 5856de80 | ths | pci_bus = pci_gt64120_init(isa_pic); |
693 | 5856de80 | ths | |
694 | 5856de80 | ths | /* Southbridge */
|
695 | 5856de80 | ths | piix4_init(pci_bus, 80);
|
696 | 5856de80 | ths | pci_piix3_ide_init(pci_bus, bs_table, 81);
|
697 | 5856de80 | ths | usb_uhci_init(pci_bus, 82);
|
698 | 5856de80 | ths | piix4_pm_init(pci_bus, 83);
|
699 | 5856de80 | ths | pit = pit_init(0x40, 0); |
700 | 5856de80 | ths | DMA_init(0);
|
701 | 5856de80 | ths | |
702 | 5856de80 | ths | /* Super I/O */
|
703 | 5856de80 | ths | kbd_init(); |
704 | 5856de80 | ths | rtc_state = rtc_init(0x70, 8); |
705 | 7bcc17dc | ths | if (serial_hds[0]) |
706 | 7bcc17dc | ths | serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]); |
707 | 7bcc17dc | ths | if (serial_hds[1]) |
708 | c05ac0cd | ths | serial_init(&pic_set_irq_new, isa_pic, 0x2f8, 3, serial_hds[1]); |
709 | 7bcc17dc | ths | if (parallel_hds[0]) |
710 | 7bcc17dc | ths | parallel_init(0x378, 7, parallel_hds[0]); |
711 | 5856de80 | ths | /* XXX: The floppy controller does not work correctly, something is
|
712 | f1770b3e | ths | probably wrong.
|
713 | f1770b3e | ths | floppy_controller = fdctrl_init(6, 2, 0, 0x3f0, fd_table); */
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714 | 5856de80 | ths | |
715 | 5856de80 | ths | /* Sound card */
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716 | 5856de80 | ths | #ifdef HAS_AUDIO
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717 | 5856de80 | ths | audio_init(pci_bus); |
718 | 5856de80 | ths | #endif
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719 | 5856de80 | ths | |
720 | 5856de80 | ths | /* Network card */
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721 | 5856de80 | ths | network_init(pci_bus); |
722 | 11f29511 | ths | |
723 | 11f29511 | ths | /* Optional PCI video card */
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724 | 11f29511 | ths | pci_cirrus_vga_init(pci_bus, ds, phys_ram_base + ram_size, |
725 | 11f29511 | ths | ram_size, vga_ram_size); |
726 | 5856de80 | ths | } |
727 | 5856de80 | ths | |
728 | 5856de80 | ths | QEMUMachine mips_malta_machine = { |
729 | 5856de80 | ths | "malta",
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730 | 5856de80 | ths | "MIPS Malta Core LV",
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731 | 5856de80 | ths | mips_malta_init, |
732 | 5856de80 | ths | }; |