root / hw / arm_boot.c @ 136be99e
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1 | 5fafdf24 | ths | /*
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2 | 16406950 | pbrook | * ARM kernel loader.
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3 | 16406950 | pbrook | *
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4 | 9ee6e8bb | pbrook | * Copyright (c) 2006-2007 CodeSourcery.
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5 | 16406950 | pbrook | * Written by Paul Brook
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6 | 16406950 | pbrook | *
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7 | 8e31bf38 | Matthew Fernandez | * This code is licensed under the GPL.
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8 | 16406950 | pbrook | */
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9 | 16406950 | pbrook | |
10 | 412beee6 | Grant Likely | #include "config.h" |
11 | 87ecb68b | pbrook | #include "hw.h" |
12 | 87ecb68b | pbrook | #include "arm-misc.h" |
13 | 87ecb68b | pbrook | #include "sysemu.h" |
14 | 412beee6 | Grant Likely | #include "boards.h" |
15 | ca20cf32 | Blue Swirl | #include "loader.h" |
16 | ca20cf32 | Blue Swirl | #include "elf.h" |
17 | 412beee6 | Grant Likely | #include "device_tree.h" |
18 | 16406950 | pbrook | |
19 | 16406950 | pbrook | #define KERNEL_ARGS_ADDR 0x100 |
20 | 16406950 | pbrook | #define KERNEL_LOAD_ADDR 0x00010000 |
21 | 756ba3b0 | Peter Maydell | #define INITRD_LOAD_ADDR 0x00d00000 |
22 | 16406950 | pbrook | |
23 | 16406950 | pbrook | /* The worlds second smallest bootloader. Set r0-r2, then jump to kernel. */
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24 | 16406950 | pbrook | static uint32_t bootloader[] = {
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25 | 16406950 | pbrook | 0xe3a00000, /* mov r0, #0 */ |
26 | f8414cb5 | Peter Maydell | 0xe59f1004, /* ldr r1, [pc, #4] */ |
27 | f8414cb5 | Peter Maydell | 0xe59f2004, /* ldr r2, [pc, #4] */ |
28 | f8414cb5 | Peter Maydell | 0xe59ff004, /* ldr pc, [pc, #4] */ |
29 | f8414cb5 | Peter Maydell | 0, /* Board ID */ |
30 | 16406950 | pbrook | 0, /* Address of kernel args. Set by integratorcp_init. */ |
31 | 16406950 | pbrook | 0 /* Kernel entry point. Set by integratorcp_init. */ |
32 | 16406950 | pbrook | }; |
33 | 16406950 | pbrook | |
34 | 9d5ba9bf | Mark Langsdorf | /* Handling for secondary CPU boot in a multicore system.
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35 | 9d5ba9bf | Mark Langsdorf | * Unlike the uniprocessor/primary CPU boot, this is platform
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36 | 9d5ba9bf | Mark Langsdorf | * dependent. The default code here is based on the secondary
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37 | 9d5ba9bf | Mark Langsdorf | * CPU boot protocol used on realview/vexpress boards, with
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38 | 9d5ba9bf | Mark Langsdorf | * some parameterisation to increase its flexibility.
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39 | 9d5ba9bf | Mark Langsdorf | * QEMU platform models for which this code is not appropriate
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40 | 9d5ba9bf | Mark Langsdorf | * should override write_secondary_boot and secondary_cpu_reset_hook
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41 | 9d5ba9bf | Mark Langsdorf | * instead.
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42 | 9d5ba9bf | Mark Langsdorf | *
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43 | 9d5ba9bf | Mark Langsdorf | * This code enables the interrupt controllers for the secondary
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44 | 9d5ba9bf | Mark Langsdorf | * CPUs and then puts all the secondary CPUs into a loop waiting
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45 | 9d5ba9bf | Mark Langsdorf | * for an interprocessor interrupt and polling a configurable
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46 | 9d5ba9bf | Mark Langsdorf | * location for the kernel secondary CPU entry point.
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47 | 9d5ba9bf | Mark Langsdorf | */
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48 | 9ee6e8bb | pbrook | static uint32_t smpboot[] = {
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49 | 96eacf64 | Peter Maydell | 0xe59f201c, /* ldr r2, gic_cpu_if */ |
50 | 078758d0 | Evgeny Voevodin | 0xe59f001c, /* ldr r0, startaddr */ |
51 | 078758d0 | Evgeny Voevodin | 0xe3a01001, /* mov r1, #1 */ |
52 | 96eacf64 | Peter Maydell | 0xe5821000, /* str r1, [r2] */ |
53 | 9ee6e8bb | pbrook | 0xe320f003, /* wfi */ |
54 | 9ee6e8bb | pbrook | 0xe5901000, /* ldr r1, [r0] */ |
55 | be0f204a | Paul Brook | 0xe1110001, /* tst r1, r1 */ |
56 | be0f204a | Paul Brook | 0x0afffffb, /* beq <wfi> */ |
57 | f7c70325 | Paul Brook | 0xe12fff11, /* bx r1 */ |
58 | 96eacf64 | Peter Maydell | 0, /* gic_cpu_if: base address of GIC CPU interface */ |
59 | 078758d0 | Evgeny Voevodin | 0 /* bootreg: Boot register address is held here */ |
60 | 9ee6e8bb | pbrook | }; |
61 | 9ee6e8bb | pbrook | |
62 | 5ae93306 | Andreas Färber | static void default_write_secondary(CPUARMState *env, |
63 | 9d5ba9bf | Mark Langsdorf | const struct arm_boot_info *info) |
64 | 9d5ba9bf | Mark Langsdorf | { |
65 | 9d5ba9bf | Mark Langsdorf | int n;
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66 | 9d5ba9bf | Mark Langsdorf | smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr;
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67 | 96eacf64 | Peter Maydell | smpboot[ARRAY_SIZE(smpboot) - 2] = info->gic_cpu_if_addr;
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68 | 9d5ba9bf | Mark Langsdorf | for (n = 0; n < ARRAY_SIZE(smpboot); n++) { |
69 | 9d5ba9bf | Mark Langsdorf | smpboot[n] = tswap32(smpboot[n]); |
70 | 9d5ba9bf | Mark Langsdorf | } |
71 | 9d5ba9bf | Mark Langsdorf | rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), |
72 | 9d5ba9bf | Mark Langsdorf | info->smp_loader_start); |
73 | 9d5ba9bf | Mark Langsdorf | } |
74 | 9d5ba9bf | Mark Langsdorf | |
75 | 5ae93306 | Andreas Färber | static void default_reset_secondary(CPUARMState *env, |
76 | 9d5ba9bf | Mark Langsdorf | const struct arm_boot_info *info) |
77 | 9d5ba9bf | Mark Langsdorf | { |
78 | 9d5ba9bf | Mark Langsdorf | stl_phys_notdirty(info->smp_bootreg_addr, 0);
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79 | 9d5ba9bf | Mark Langsdorf | env->regs[15] = info->smp_loader_start;
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80 | 9d5ba9bf | Mark Langsdorf | } |
81 | 9d5ba9bf | Mark Langsdorf | |
82 | 52b43737 | pbrook | #define WRITE_WORD(p, value) do { \ |
83 | 52b43737 | pbrook | stl_phys_notdirty(p, value); \ |
84 | 52b43737 | pbrook | p += 4; \
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85 | 52b43737 | pbrook | } while (0) |
86 | 52b43737 | pbrook | |
87 | 761c9eb0 | Stefan Weil | static void set_kernel_args(const struct arm_boot_info *info) |
88 | 16406950 | pbrook | { |
89 | 761c9eb0 | Stefan Weil | int initrd_size = info->initrd_size;
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90 | 761c9eb0 | Stefan Weil | target_phys_addr_t base = info->loader_start; |
91 | c227f099 | Anthony Liguori | target_phys_addr_t p; |
92 | 16406950 | pbrook | |
93 | 52b43737 | pbrook | p = base + KERNEL_ARGS_ADDR; |
94 | 16406950 | pbrook | /* ATAG_CORE */
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95 | 52b43737 | pbrook | WRITE_WORD(p, 5);
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96 | 52b43737 | pbrook | WRITE_WORD(p, 0x54410001);
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97 | 52b43737 | pbrook | WRITE_WORD(p, 1);
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98 | 52b43737 | pbrook | WRITE_WORD(p, 0x1000);
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99 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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100 | 16406950 | pbrook | /* ATAG_MEM */
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101 | f93eb9ff | balrog | /* TODO: handle multiple chips on one ATAG list */
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102 | 52b43737 | pbrook | WRITE_WORD(p, 4);
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103 | 52b43737 | pbrook | WRITE_WORD(p, 0x54410002);
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104 | 52b43737 | pbrook | WRITE_WORD(p, info->ram_size); |
105 | 52b43737 | pbrook | WRITE_WORD(p, info->loader_start); |
106 | 16406950 | pbrook | if (initrd_size) {
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107 | 16406950 | pbrook | /* ATAG_INITRD2 */
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108 | 52b43737 | pbrook | WRITE_WORD(p, 4);
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109 | 52b43737 | pbrook | WRITE_WORD(p, 0x54420005);
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110 | 52b43737 | pbrook | WRITE_WORD(p, info->loader_start + INITRD_LOAD_ADDR); |
111 | 52b43737 | pbrook | WRITE_WORD(p, initrd_size); |
112 | 16406950 | pbrook | } |
113 | f93eb9ff | balrog | if (info->kernel_cmdline && *info->kernel_cmdline) {
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114 | 16406950 | pbrook | /* ATAG_CMDLINE */
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115 | 16406950 | pbrook | int cmdline_size;
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116 | 16406950 | pbrook | |
117 | f93eb9ff | balrog | cmdline_size = strlen(info->kernel_cmdline); |
118 | 52b43737 | pbrook | cpu_physical_memory_write(p + 8, (void *)info->kernel_cmdline, |
119 | 52b43737 | pbrook | cmdline_size + 1);
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120 | 16406950 | pbrook | cmdline_size = (cmdline_size >> 2) + 1; |
121 | 52b43737 | pbrook | WRITE_WORD(p, cmdline_size + 2);
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122 | 52b43737 | pbrook | WRITE_WORD(p, 0x54410009);
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123 | 52b43737 | pbrook | p += cmdline_size * 4;
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124 | 16406950 | pbrook | } |
125 | f93eb9ff | balrog | if (info->atag_board) {
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126 | f93eb9ff | balrog | /* ATAG_BOARD */
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127 | f93eb9ff | balrog | int atag_board_len;
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128 | 52b43737 | pbrook | uint8_t atag_board_buf[0x1000];
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129 | f93eb9ff | balrog | |
130 | 52b43737 | pbrook | atag_board_len = (info->atag_board(info, atag_board_buf) + 3) & ~3; |
131 | 52b43737 | pbrook | WRITE_WORD(p, (atag_board_len + 8) >> 2); |
132 | 52b43737 | pbrook | WRITE_WORD(p, 0x414f4d50);
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133 | 52b43737 | pbrook | cpu_physical_memory_write(p, atag_board_buf, atag_board_len); |
134 | f93eb9ff | balrog | p += atag_board_len; |
135 | f93eb9ff | balrog | } |
136 | 16406950 | pbrook | /* ATAG_END */
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137 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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138 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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139 | 16406950 | pbrook | } |
140 | 16406950 | pbrook | |
141 | 761c9eb0 | Stefan Weil | static void set_kernel_args_old(const struct arm_boot_info *info) |
142 | 2b8f2d41 | balrog | { |
143 | c227f099 | Anthony Liguori | target_phys_addr_t p; |
144 | 52b43737 | pbrook | const char *s; |
145 | 761c9eb0 | Stefan Weil | int initrd_size = info->initrd_size;
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146 | 761c9eb0 | Stefan Weil | target_phys_addr_t base = info->loader_start; |
147 | 2b8f2d41 | balrog | |
148 | 2b8f2d41 | balrog | /* see linux/include/asm-arm/setup.h */
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149 | 52b43737 | pbrook | p = base + KERNEL_ARGS_ADDR; |
150 | 2b8f2d41 | balrog | /* page_size */
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151 | 52b43737 | pbrook | WRITE_WORD(p, 4096);
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152 | 2b8f2d41 | balrog | /* nr_pages */
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153 | 52b43737 | pbrook | WRITE_WORD(p, info->ram_size / 4096);
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154 | 2b8f2d41 | balrog | /* ramdisk_size */
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155 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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156 | 2b8f2d41 | balrog | #define FLAG_READONLY 1 |
157 | 2b8f2d41 | balrog | #define FLAG_RDLOAD 4 |
158 | 2b8f2d41 | balrog | #define FLAG_RDPROMPT 8 |
159 | 2b8f2d41 | balrog | /* flags */
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160 | 52b43737 | pbrook | WRITE_WORD(p, FLAG_READONLY | FLAG_RDLOAD | FLAG_RDPROMPT); |
161 | 2b8f2d41 | balrog | /* rootdev */
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162 | 52b43737 | pbrook | WRITE_WORD(p, (31 << 8) | 0); /* /dev/mtdblock0 */ |
163 | 2b8f2d41 | balrog | /* video_num_cols */
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164 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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165 | 2b8f2d41 | balrog | /* video_num_rows */
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166 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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167 | 2b8f2d41 | balrog | /* video_x */
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168 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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169 | 2b8f2d41 | balrog | /* video_y */
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170 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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171 | 2b8f2d41 | balrog | /* memc_control_reg */
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172 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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173 | 2b8f2d41 | balrog | /* unsigned char sounddefault */
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174 | 2b8f2d41 | balrog | /* unsigned char adfsdrives */
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175 | 2b8f2d41 | balrog | /* unsigned char bytes_per_char_h */
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176 | 2b8f2d41 | balrog | /* unsigned char bytes_per_char_v */
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177 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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178 | 2b8f2d41 | balrog | /* pages_in_bank[4] */
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179 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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180 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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181 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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182 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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183 | 2b8f2d41 | balrog | /* pages_in_vram */
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184 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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185 | 2b8f2d41 | balrog | /* initrd_start */
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186 | 2b8f2d41 | balrog | if (initrd_size)
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187 | 52b43737 | pbrook | WRITE_WORD(p, info->loader_start + INITRD_LOAD_ADDR); |
188 | 2b8f2d41 | balrog | else
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189 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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190 | 2b8f2d41 | balrog | /* initrd_size */
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191 | 52b43737 | pbrook | WRITE_WORD(p, initrd_size); |
192 | 2b8f2d41 | balrog | /* rd_start */
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193 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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194 | 2b8f2d41 | balrog | /* system_rev */
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195 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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196 | 2b8f2d41 | balrog | /* system_serial_low */
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197 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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198 | 2b8f2d41 | balrog | /* system_serial_high */
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199 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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200 | 2b8f2d41 | balrog | /* mem_fclk_21285 */
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201 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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202 | 2b8f2d41 | balrog | /* zero unused fields */
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203 | 52b43737 | pbrook | while (p < base + KERNEL_ARGS_ADDR + 256 + 1024) { |
204 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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205 | 52b43737 | pbrook | } |
206 | 52b43737 | pbrook | s = info->kernel_cmdline; |
207 | 52b43737 | pbrook | if (s) {
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208 | 52b43737 | pbrook | cpu_physical_memory_write(p, (void *)s, strlen(s) + 1); |
209 | 52b43737 | pbrook | } else {
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210 | 52b43737 | pbrook | WRITE_WORD(p, 0);
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211 | 52b43737 | pbrook | } |
212 | 2b8f2d41 | balrog | } |
213 | 2b8f2d41 | balrog | |
214 | 412beee6 | Grant Likely | static int load_dtb(target_phys_addr_t addr, const struct arm_boot_info *binfo) |
215 | 412beee6 | Grant Likely | { |
216 | 412beee6 | Grant Likely | #ifdef CONFIG_FDT
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217 | 412beee6 | Grant Likely | uint32_t mem_reg_property[] = { cpu_to_be32(binfo->loader_start), |
218 | 412beee6 | Grant Likely | cpu_to_be32(binfo->ram_size) }; |
219 | 412beee6 | Grant Likely | void *fdt = NULL; |
220 | 412beee6 | Grant Likely | char *filename;
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221 | 412beee6 | Grant Likely | int size, rc;
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222 | 412beee6 | Grant Likely | |
223 | 412beee6 | Grant Likely | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, binfo->dtb_filename); |
224 | 412beee6 | Grant Likely | if (!filename) {
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225 | 412beee6 | Grant Likely | fprintf(stderr, "Couldn't open dtb file %s\n", binfo->dtb_filename);
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226 | 412beee6 | Grant Likely | return -1; |
227 | 412beee6 | Grant Likely | } |
228 | 412beee6 | Grant Likely | |
229 | 412beee6 | Grant Likely | fdt = load_device_tree(filename, &size); |
230 | 412beee6 | Grant Likely | if (!fdt) {
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231 | 412beee6 | Grant Likely | fprintf(stderr, "Couldn't open dtb file %s\n", filename);
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232 | 412beee6 | Grant Likely | g_free(filename); |
233 | 412beee6 | Grant Likely | return -1; |
234 | 412beee6 | Grant Likely | } |
235 | 412beee6 | Grant Likely | g_free(filename); |
236 | 412beee6 | Grant Likely | |
237 | 412beee6 | Grant Likely | rc = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, |
238 | 412beee6 | Grant Likely | sizeof(mem_reg_property));
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239 | 412beee6 | Grant Likely | if (rc < 0) { |
240 | 412beee6 | Grant Likely | fprintf(stderr, "couldn't set /memory/reg\n");
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241 | 412beee6 | Grant Likely | } |
242 | 412beee6 | Grant Likely | |
243 | 412beee6 | Grant Likely | rc = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", |
244 | 412beee6 | Grant Likely | binfo->kernel_cmdline); |
245 | 412beee6 | Grant Likely | if (rc < 0) { |
246 | 412beee6 | Grant Likely | fprintf(stderr, "couldn't set /chosen/bootargs\n");
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247 | 412beee6 | Grant Likely | } |
248 | 412beee6 | Grant Likely | |
249 | 412beee6 | Grant Likely | if (binfo->initrd_size) {
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250 | 412beee6 | Grant Likely | rc = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", |
251 | 412beee6 | Grant Likely | binfo->loader_start + INITRD_LOAD_ADDR); |
252 | 412beee6 | Grant Likely | if (rc < 0) { |
253 | 412beee6 | Grant Likely | fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
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254 | 412beee6 | Grant Likely | } |
255 | 412beee6 | Grant Likely | |
256 | 412beee6 | Grant Likely | rc = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", |
257 | 412beee6 | Grant Likely | binfo->loader_start + INITRD_LOAD_ADDR + |
258 | 412beee6 | Grant Likely | binfo->initrd_size); |
259 | 412beee6 | Grant Likely | if (rc < 0) { |
260 | 412beee6 | Grant Likely | fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
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261 | 412beee6 | Grant Likely | } |
262 | 412beee6 | Grant Likely | } |
263 | 412beee6 | Grant Likely | |
264 | 412beee6 | Grant Likely | cpu_physical_memory_write(addr, fdt, size); |
265 | 412beee6 | Grant Likely | |
266 | 412beee6 | Grant Likely | return 0; |
267 | 412beee6 | Grant Likely | |
268 | 412beee6 | Grant Likely | #else
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269 | 412beee6 | Grant Likely | fprintf(stderr, "Device tree requested, "
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270 | 412beee6 | Grant Likely | "but qemu was compiled without fdt support\n");
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271 | 412beee6 | Grant Likely | return -1; |
272 | 412beee6 | Grant Likely | #endif
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273 | 412beee6 | Grant Likely | } |
274 | 412beee6 | Grant Likely | |
275 | 6ed221b6 | Adam Lackorzynski | static void do_cpu_reset(void *opaque) |
276 | f2d74978 | Paul Brook | { |
277 | 5ae93306 | Andreas Färber | CPUARMState *env = opaque; |
278 | 462a8bc6 | Stefan Weil | const struct arm_boot_info *info = env->boot_info; |
279 | f2d74978 | Paul Brook | |
280 | 1bba0dc9 | Andreas Färber | cpu_state_reset(env); |
281 | f2d74978 | Paul Brook | if (info) {
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282 | f2d74978 | Paul Brook | if (!info->is_linux) {
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283 | f2d74978 | Paul Brook | /* Jump to the entry point. */
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284 | f2d74978 | Paul Brook | env->regs[15] = info->entry & 0xfffffffe; |
285 | f2d74978 | Paul Brook | env->thumb = info->entry & 1;
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286 | f2d74978 | Paul Brook | } else {
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287 | 6ed221b6 | Adam Lackorzynski | if (env == first_cpu) {
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288 | 6ed221b6 | Adam Lackorzynski | env->regs[15] = info->loader_start;
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289 | 412beee6 | Grant Likely | if (!info->dtb_filename) {
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290 | 412beee6 | Grant Likely | if (old_param) {
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291 | 412beee6 | Grant Likely | set_kernel_args_old(info); |
292 | 412beee6 | Grant Likely | } else {
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293 | 412beee6 | Grant Likely | set_kernel_args(info); |
294 | 412beee6 | Grant Likely | } |
295 | 6ed221b6 | Adam Lackorzynski | } |
296 | f2d74978 | Paul Brook | } else {
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297 | 9d5ba9bf | Mark Langsdorf | info->secondary_cpu_reset_hook(env, info); |
298 | f2d74978 | Paul Brook | } |
299 | f2d74978 | Paul Brook | } |
300 | f2d74978 | Paul Brook | } |
301 | f2d74978 | Paul Brook | } |
302 | f2d74978 | Paul Brook | |
303 | 5ae93306 | Andreas Färber | void arm_load_kernel(CPUARMState *env, struct arm_boot_info *info) |
304 | 16406950 | pbrook | { |
305 | 16406950 | pbrook | int kernel_size;
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306 | 16406950 | pbrook | int initrd_size;
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307 | 16406950 | pbrook | int n;
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308 | 1c7b3754 | pbrook | int is_linux = 0; |
309 | 1c7b3754 | pbrook | uint64_t elf_entry; |
310 | c227f099 | Anthony Liguori | target_phys_addr_t entry; |
311 | ca20cf32 | Blue Swirl | int big_endian;
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312 | 412beee6 | Grant Likely | QemuOpts *machine_opts; |
313 | 16406950 | pbrook | |
314 | 16406950 | pbrook | /* Load the kernel. */
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315 | f93eb9ff | balrog | if (!info->kernel_filename) {
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316 | 16406950 | pbrook | fprintf(stderr, "Kernel image must be specified\n");
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317 | 16406950 | pbrook | exit(1);
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318 | 16406950 | pbrook | } |
319 | daf90626 | pbrook | |
320 | 412beee6 | Grant Likely | machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0); |
321 | 412beee6 | Grant Likely | if (machine_opts) {
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322 | 412beee6 | Grant Likely | info->dtb_filename = qemu_opt_get(machine_opts, "dtb");
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323 | 412beee6 | Grant Likely | } else {
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324 | 412beee6 | Grant Likely | info->dtb_filename = NULL;
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325 | 412beee6 | Grant Likely | } |
326 | 412beee6 | Grant Likely | |
327 | 9d5ba9bf | Mark Langsdorf | if (!info->secondary_cpu_reset_hook) {
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328 | 9d5ba9bf | Mark Langsdorf | info->secondary_cpu_reset_hook = default_reset_secondary; |
329 | 9d5ba9bf | Mark Langsdorf | } |
330 | 9d5ba9bf | Mark Langsdorf | if (!info->write_secondary_boot) {
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331 | 9d5ba9bf | Mark Langsdorf | info->write_secondary_boot = default_write_secondary; |
332 | 9d5ba9bf | Mark Langsdorf | } |
333 | 9d5ba9bf | Mark Langsdorf | |
334 | f2d74978 | Paul Brook | if (info->nb_cpus == 0) |
335 | f2d74978 | Paul Brook | info->nb_cpus = 1;
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336 | f93eb9ff | balrog | |
337 | ca20cf32 | Blue Swirl | #ifdef TARGET_WORDS_BIGENDIAN
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338 | ca20cf32 | Blue Swirl | big_endian = 1;
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339 | ca20cf32 | Blue Swirl | #else
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340 | ca20cf32 | Blue Swirl | big_endian = 0;
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341 | ca20cf32 | Blue Swirl | #endif
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342 | ca20cf32 | Blue Swirl | |
343 | 1c7b3754 | pbrook | /* Assume that raw images are linux kernels, and ELF images are not. */
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344 | 409dbce5 | Aurelien Jarno | kernel_size = load_elf(info->kernel_filename, NULL, NULL, &elf_entry, |
345 | 409dbce5 | Aurelien Jarno | NULL, NULL, big_endian, ELF_MACHINE, 1); |
346 | 1c7b3754 | pbrook | entry = elf_entry; |
347 | 1c7b3754 | pbrook | if (kernel_size < 0) { |
348 | 5a9154e0 | aliguori | kernel_size = load_uimage(info->kernel_filename, &entry, NULL,
|
349 | 5a9154e0 | aliguori | &is_linux); |
350 | 1c7b3754 | pbrook | } |
351 | 1c7b3754 | pbrook | if (kernel_size < 0) { |
352 | f93eb9ff | balrog | entry = info->loader_start + KERNEL_LOAD_ADDR; |
353 | 3b760e04 | pbrook | kernel_size = load_image_targphys(info->kernel_filename, entry, |
354 | 3b760e04 | pbrook | ram_size - KERNEL_LOAD_ADDR); |
355 | 1c7b3754 | pbrook | is_linux = 1;
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356 | 1c7b3754 | pbrook | } |
357 | 1c7b3754 | pbrook | if (kernel_size < 0) { |
358 | f93eb9ff | balrog | fprintf(stderr, "qemu: could not load kernel '%s'\n",
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359 | f93eb9ff | balrog | info->kernel_filename); |
360 | 1c7b3754 | pbrook | exit(1);
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361 | 1c7b3754 | pbrook | } |
362 | f2d74978 | Paul Brook | info->entry = entry; |
363 | f2d74978 | Paul Brook | if (is_linux) {
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364 | f93eb9ff | balrog | if (info->initrd_filename) {
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365 | 3b760e04 | pbrook | initrd_size = load_image_targphys(info->initrd_filename, |
366 | 3b760e04 | pbrook | info->loader_start |
367 | 3b760e04 | pbrook | + INITRD_LOAD_ADDR, |
368 | 3b760e04 | pbrook | ram_size - INITRD_LOAD_ADDR); |
369 | daf90626 | pbrook | if (initrd_size < 0) { |
370 | daf90626 | pbrook | fprintf(stderr, "qemu: could not load initrd '%s'\n",
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371 | f93eb9ff | balrog | info->initrd_filename); |
372 | daf90626 | pbrook | exit(1);
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373 | daf90626 | pbrook | } |
374 | daf90626 | pbrook | } else {
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375 | daf90626 | pbrook | initrd_size = 0;
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376 | daf90626 | pbrook | } |
377 | 412beee6 | Grant Likely | info->initrd_size = initrd_size; |
378 | 412beee6 | Grant Likely | |
379 | f8414cb5 | Peter Maydell | bootloader[4] = info->board_id;
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380 | 412beee6 | Grant Likely | |
381 | 412beee6 | Grant Likely | /* for device tree boot, we pass the DTB directly in r2. Otherwise
|
382 | 412beee6 | Grant Likely | * we point to the kernel args.
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383 | 412beee6 | Grant Likely | */
|
384 | 412beee6 | Grant Likely | if (info->dtb_filename) {
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385 | 412beee6 | Grant Likely | /* Place the DTB after the initrd in memory */
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386 | 412beee6 | Grant Likely | target_phys_addr_t dtb_start = TARGET_PAGE_ALIGN(info->loader_start |
387 | 412beee6 | Grant Likely | + INITRD_LOAD_ADDR |
388 | 412beee6 | Grant Likely | + initrd_size); |
389 | 412beee6 | Grant Likely | if (load_dtb(dtb_start, info)) {
|
390 | 412beee6 | Grant Likely | exit(1);
|
391 | 412beee6 | Grant Likely | } |
392 | 412beee6 | Grant Likely | bootloader[5] = dtb_start;
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393 | 412beee6 | Grant Likely | } else {
|
394 | 412beee6 | Grant Likely | bootloader[5] = info->loader_start + KERNEL_ARGS_ADDR;
|
395 | 412beee6 | Grant Likely | } |
396 | 1c7b3754 | pbrook | bootloader[6] = entry;
|
397 | 52b43737 | pbrook | for (n = 0; n < sizeof(bootloader) / 4; n++) { |
398 | f2d74978 | Paul Brook | bootloader[n] = tswap32(bootloader[n]); |
399 | 52b43737 | pbrook | } |
400 | f2d74978 | Paul Brook | rom_add_blob_fixed("bootloader", bootloader, sizeof(bootloader), |
401 | f2d74978 | Paul Brook | info->loader_start); |
402 | 52b43737 | pbrook | if (info->nb_cpus > 1) { |
403 | 9d5ba9bf | Mark Langsdorf | info->write_secondary_boot(env, info); |
404 | 52b43737 | pbrook | } |
405 | 16406950 | pbrook | } |
406 | f2d74978 | Paul Brook | info->is_linux = is_linux; |
407 | 6ed221b6 | Adam Lackorzynski | |
408 | 6ed221b6 | Adam Lackorzynski | for (; env; env = env->next_cpu) {
|
409 | 6ed221b6 | Adam Lackorzynski | env->boot_info = info; |
410 | 6ed221b6 | Adam Lackorzynski | qemu_register_reset(do_cpu_reset, env); |
411 | 6ed221b6 | Adam Lackorzynski | } |
412 | 16406950 | pbrook | } |