| 1 | /*
|
|---|
| 2 | * Copyright (c) 2007 Michal Kebrt
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 |
|
|---|
| 30 | /** @addtogroup arm32boot
|
|---|
| 31 | * @{
|
|---|
| 32 | */
|
|---|
| 33 | /** @file
|
|---|
| 34 | * @brief Bootstrap.
|
|---|
| 35 | */
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | #include "main.h"
|
|---|
| 39 | #include "asm.h"
|
|---|
| 40 | #include "_components.h"
|
|---|
| 41 | #include <printf.h>
|
|---|
| 42 | #include <align.h>
|
|---|
| 43 | #include <macros.h>
|
|---|
| 44 | #include <string.h>
|
|---|
| 45 | #include <memstr.h>
|
|---|
| 46 |
|
|---|
| 47 | #include "mm.h"
|
|---|
| 48 |
|
|---|
| 49 | /** Kernel entry point address. */
|
|---|
| 50 | #define KERNEL_VIRTUAL_ADDRESS 0x80800000
|
|---|
| 51 |
|
|---|
| 52 |
|
|---|
| 53 | char *release = STRING(RELEASE);
|
|---|
| 54 |
|
|---|
| 55 | #ifdef REVISION
|
|---|
| 56 | char *revision = ", revision " STRING(REVISION);
|
|---|
| 57 | #else
|
|---|
| 58 | char *revision = "";
|
|---|
| 59 | #endif
|
|---|
| 60 |
|
|---|
| 61 | #ifdef TIMESTAMP
|
|---|
| 62 | char *timestamp = "\nBuilt on " STRING(TIMESTAMP);
|
|---|
| 63 | #else
|
|---|
| 64 | char *timestamp = "";
|
|---|
| 65 | #endif
|
|---|
| 66 |
|
|---|
| 67 |
|
|---|
| 68 | /** Prints bootloader version information. */
|
|---|
| 69 | static void version_print(void)
|
|---|
| 70 | {
|
|---|
| 71 | printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2009 HelenOS project\n",
|
|---|
| 72 | release, revision, timestamp);
|
|---|
| 73 | }
|
|---|
| 74 |
|
|---|
| 75 |
|
|---|
| 76 | /** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */
|
|---|
| 77 | void bootstrap(void)
|
|---|
| 78 | {
|
|---|
| 79 | mmu_start();
|
|---|
| 80 | version_print();
|
|---|
| 81 |
|
|---|
| 82 | component_t components[COMPONENTS];
|
|---|
| 83 | init_components(components);
|
|---|
| 84 |
|
|---|
| 85 | bootinfo_t bootinfo;
|
|---|
| 86 |
|
|---|
| 87 | printf("\nMemory statistics\n");
|
|---|
| 88 | printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS);
|
|---|
| 89 | printf(" %L: boot info structure\n", &bootinfo);
|
|---|
| 90 |
|
|---|
| 91 | unsigned int top = 0;
|
|---|
| 92 | bootinfo.cnt = 0;
|
|---|
| 93 | unsigned int i, j;
|
|---|
| 94 | for (i = 0; i < COMPONENTS; i++) {
|
|---|
| 95 | top = ALIGN_UP(top, KERNEL_PAGE_SIZE);
|
|---|
| 96 | if (i > 0) {
|
|---|
| 97 | bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top;
|
|---|
| 98 | bootinfo.tasks[bootinfo.cnt].size = components[i].size;
|
|---|
| 99 | strncpy(bootinfo.tasks[bootinfo.cnt].name,
|
|---|
| 100 | components[i].name, BOOTINFO_TASK_NAME_BUFLEN);
|
|---|
| 101 | bootinfo.cnt++;
|
|---|
| 102 | }
|
|---|
| 103 | top += components[i].size;
|
|---|
| 104 | }
|
|---|
| 105 | j = bootinfo.cnt - 1;
|
|---|
| 106 |
|
|---|
| 107 | printf("\nCopying components\n");
|
|---|
| 108 | printf("Component\tAddress\t\tSize (Bytes)\n");
|
|---|
| 109 | printf("============================================\n");
|
|---|
| 110 | for (i = COMPONENTS - 1; i > 0; i--, j--) {
|
|---|
| 111 | printf("%s\t\t0x%x\t%d\n", components[i].name, bootinfo.tasks[j].addr, components[i].size);
|
|---|
| 112 | memcpy((void *)bootinfo.tasks[j].addr, components[i].start,
|
|---|
| 113 | components[i].size);
|
|---|
| 114 | }
|
|---|
| 115 | printf("KERNEL\t\t0x%x\t%d\n", KERNEL_VIRTUAL_ADDRESS, components[0].size);
|
|---|
| 116 |
|
|---|
| 117 | memcpy((void *)KERNEL_VIRTUAL_ADDRESS, components[0].start,
|
|---|
| 118 | components[0].size);
|
|---|
| 119 |
|
|---|
| 120 | printf("\nBooting the kernel...\n");
|
|---|
| 121 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo);
|
|---|
| 122 | }
|
|---|
| 123 |
|
|---|
| 124 | /** @}
|
|---|
| 125 | */
|
|---|
| 126 |
|
|---|
