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2145 | kebrt | 1 | /* |
2152 | kebrt | 2 | * Copyright (c) 2007 Michal Kebrt |
2145 | kebrt | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
2323 | kebrt | 29 | |
30 | /** @addtogroup arm32boot |
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31 | * @{ |
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32 | */ |
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33 | /** @file |
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2349 | kebrt | 34 | * @brief Bootstrap. |
3922 | decky | 35 | */ |
2323 | kebrt | 36 | |
37 | |||
3883 | decky | 38 | #include "main.h" |
2145 | kebrt | 39 | #include "asm.h" |
40 | #include "_components.h" |
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41 | #include <printf.h> |
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3922 | decky | 42 | #include <align.h> |
3883 | decky | 43 | #include <macros.h> |
4027 | svoboda | 44 | #include <string.h> |
2145 | kebrt | 45 | |
2198 | jancik | 46 | #include "mm.h" |
2145 | kebrt | 47 | |
2323 | kebrt | 48 | /** Kernel entry point address. */ |
2352 | kebrt | 49 | #define KERNEL_VIRTUAL_ADDRESS 0x80200000 |
2145 | kebrt | 50 | |
2323 | kebrt | 51 | |
3883 | decky | 52 | char *release = STRING(RELEASE); |
2145 | kebrt | 53 | |
54 | #ifdef REVISION |
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3883 | decky | 55 | char *revision = ", revision " STRING(REVISION); |
2145 | kebrt | 56 | #else |
57 | char *revision = ""; |
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58 | #endif |
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59 | |||
60 | #ifdef TIMESTAMP |
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3883 | decky | 61 | char *timestamp = "\nBuilt on " STRING(TIMESTAMP); |
2145 | kebrt | 62 | #else |
63 | char *timestamp = ""; |
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64 | #endif |
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65 | |||
2323 | kebrt | 66 | |
67 | /** Prints bootloader version information. */ |
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2145 | kebrt | 68 | static void version_print(void) |
69 | { |
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4669 | pillai | 70 | printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2009 HelenOS project\n", |
2145 | kebrt | 71 | release, revision, timestamp); |
72 | } |
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73 | |||
2409 | kebrt | 74 | |
2323 | kebrt | 75 | /** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */ |
2145 | kebrt | 76 | void bootstrap(void) |
77 | { |
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2254 | kebrt | 78 | mmu_start(); |
2145 | kebrt | 79 | version_print(); |
2293 | kebrt | 80 | |
2145 | kebrt | 81 | component_t components[COMPONENTS]; |
82 | init_components(components); |
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83 | |||
3024 | decky | 84 | bootinfo_t bootinfo; |
85 | |||
2145 | kebrt | 86 | printf("\nMemory statistics\n"); |
2254 | kebrt | 87 | printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
2145 | kebrt | 88 | printf(" %L: boot info structure\n", &bootinfo); |
89 | |||
4436 | jermar | 90 | unsigned int top = 0; |
91 | bootinfo.cnt = 0; |
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2145 | kebrt | 92 | unsigned int i, j; |
93 | for (i = 0; i < COMPONENTS; i++) { |
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2349 | kebrt | 94 | top = ALIGN_UP(top, KERNEL_PAGE_SIZE); |
2145 | kebrt | 95 | if (i > 0) { |
2254 | kebrt | 96 | bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top; |
2145 | kebrt | 97 | bootinfo.tasks[bootinfo.cnt].size = components[i].size; |
4027 | svoboda | 98 | strncpy(bootinfo.tasks[bootinfo.cnt].name, |
99 | components[i].name, BOOTINFO_TASK_NAME_BUFLEN); |
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2145 | kebrt | 100 | bootinfo.cnt++; |
101 | } |
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102 | top += components[i].size; |
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4436 | jermar | 103 | } |
104 | j = bootinfo.cnt - 1; |
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105 | |||
106 | printf("\nCopying components\n"); |
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4669 | pillai | 107 | printf("Component\tAddress\t\tSize (Bytes)\n"); |
108 | printf("============================================\n"); |
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4436 | jermar | 109 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
4669 | pillai | 110 | printf("%s\t\t0x%x\t%d\n", components[i].name, bootinfo.tasks[j].addr, components[i].size); |
4436 | jermar | 111 | memcpy((void *)bootinfo.tasks[j].addr, components[i].start, |
112 | components[i].size); |
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2145 | kebrt | 113 | } |
4669 | pillai | 114 | printf("KERNEL\t\t0x%x\t%d\n", KERNEL_VIRTUAL_ADDRESS, components[0].size); |
115 | |||
4436 | jermar | 116 | memcpy((void *)KERNEL_VIRTUAL_ADDRESS, components[0].start, |
117 | components[0].size); |
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118 | |||
2145 | kebrt | 119 | printf("\nBooting the kernel...\n"); |
3922 | decky | 120 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo); |
2145 | kebrt | 121 | } |
122 | |||
2323 | kebrt | 123 | /** @} |
124 | */ |
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125 |