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1 | /* |
1 | /* |
2 | * Copyright (c) 2007 Michal Kebrt |
2 | * Copyright (c) 2007 Michal Kebrt |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | 29 | ||
30 | /** @addtogroup arm32boot |
30 | /** @addtogroup arm32boot |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** @file |
33 | /** @file |
34 | * @brief Bootstrap. |
34 | * @brief Bootstrap. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | 37 | ||
38 | #include "main.h" |
38 | #include "main.h" |
39 | #include "asm.h" |
39 | #include "asm.h" |
40 | #include "_components.h" |
40 | #include "_components.h" |
41 | #include <printf.h> |
41 | #include <printf.h> |
42 | #include <align.h> |
42 | #include <align.h> |
43 | #include <macros.h> |
43 | #include <macros.h> |
44 | #include <string.h> |
44 | #include <string.h> |
45 | 45 | ||
46 | #include "mm.h" |
46 | #include "mm.h" |
47 | 47 | ||
48 | /** Kernel entry point address. */ |
48 | /** Kernel entry point address. */ |
49 | #define KERNEL_VIRTUAL_ADDRESS 0x80200000 |
49 | #define KERNEL_VIRTUAL_ADDRESS 0x80200000 |
50 | 50 | ||
51 | 51 | ||
52 | char *release = STRING(RELEASE); |
52 | char *release = STRING(RELEASE); |
53 | 53 | ||
54 | #ifdef REVISION |
54 | #ifdef REVISION |
55 | char *revision = ", revision " STRING(REVISION); |
55 | char *revision = ", revision " STRING(REVISION); |
56 | #else |
56 | #else |
57 | char *revision = ""; |
57 | char *revision = ""; |
58 | #endif |
58 | #endif |
59 | 59 | ||
60 | #ifdef TIMESTAMP |
60 | #ifdef TIMESTAMP |
61 | char *timestamp = "\nBuilt on " STRING(TIMESTAMP); |
61 | char *timestamp = "\nBuilt on " STRING(TIMESTAMP); |
62 | #else |
62 | #else |
63 | char *timestamp = ""; |
63 | char *timestamp = ""; |
64 | #endif |
64 | #endif |
65 | 65 | ||
66 | 66 | ||
67 | /** Prints bootloader version information. */ |
67 | /** Prints bootloader version information. */ |
68 | static void version_print(void) |
68 | static void version_print(void) |
69 | { |
69 | { |
70 | printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2007 HelenOS project\n", |
70 | printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2007 HelenOS project\n", |
71 | release, revision, timestamp); |
71 | release, revision, timestamp); |
72 | } |
72 | } |
73 | 73 | ||
74 | 74 | ||
75 | /** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */ |
75 | /** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */ |
76 | void bootstrap(void) |
76 | void bootstrap(void) |
77 | { |
77 | { |
78 | mmu_start(); |
78 | mmu_start(); |
79 | version_print(); |
79 | version_print(); |
80 | 80 | ||
81 | component_t components[COMPONENTS]; |
81 | component_t components[COMPONENTS]; |
82 | init_components(components); |
82 | init_components(components); |
83 | 83 | ||
84 | bootinfo_t bootinfo; |
84 | bootinfo_t bootinfo; |
85 | 85 | ||
86 | printf("\nMemory statistics\n"); |
86 | printf("\nMemory statistics\n"); |
87 | printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
87 | printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
88 | printf(" %L: boot info structure\n", &bootinfo); |
88 | printf(" %L: boot info structure\n", &bootinfo); |
89 | 89 | ||
90 | unsigned int top = 0; |
90 | unsigned int top = 0; |
91 | bootinfo.cnt = 0; |
91 | bootinfo.cnt = 0; |
92 | unsigned int i, j; |
92 | unsigned int i, j; |
93 | for (i = 0; i < COMPONENTS; i++) { |
93 | for (i = 0; i < COMPONENTS; i++) { |
94 | printf(" %L: %s image (size %d bytes)\n", |
94 | printf(" %L: %s image (size %d bytes)\n", |
95 | components[i].start, components[i].name, components[i].size); |
95 | components[i].start, components[i].name, components[i].size); |
96 | top = ALIGN_UP(top, KERNEL_PAGE_SIZE); |
96 | top = ALIGN_UP(top, KERNEL_PAGE_SIZE); |
97 | if (i > 0) { |
97 | if (i > 0) { |
98 | bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top; |
98 | bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top; |
99 | bootinfo.tasks[bootinfo.cnt].size = components[i].size; |
99 | bootinfo.tasks[bootinfo.cnt].size = components[i].size; |
100 | strncpy(bootinfo.tasks[bootinfo.cnt].name, |
100 | strncpy(bootinfo.tasks[bootinfo.cnt].name, |
101 | components[i].name, BOOTINFO_TASK_NAME_BUFLEN); |
101 | components[i].name, BOOTINFO_TASK_NAME_BUFLEN); |
102 | bootinfo.cnt++; |
102 | bootinfo.cnt++; |
103 | } |
103 | } |
104 | top += components[i].size; |
104 | top += components[i].size; |
105 | } |
105 | } |
106 | j = bootinfo.cnt - 1; |
106 | j = bootinfo.cnt - 1; |
107 | 107 | ||
108 | printf("\nCopying components\n"); |
108 | printf("\nCopying components\n"); |
109 | 109 | ||
110 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
110 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
111 | printf(" %s...", components[i].name); |
111 | printf(" %s...", components[i].name); |
112 | memcpy((void *)bootinfo.tasks[j].addr, components[i].start, |
112 | memcpy((void *)bootinfo.tasks[j].addr, components[i].start, |
113 | components[i].size); |
113 | components[i].size); |
114 | printf("done.\n"); |
114 | printf("done.\n"); |
115 | } |
115 | } |
116 | 116 | ||
117 | printf("\nCopying kernel..."); |
117 | printf("\nCopying kernel..."); |
118 | memcpy((void *)KERNEL_VIRTUAL_ADDRESS, components[0].start, |
118 | memcpy((void *)KERNEL_VIRTUAL_ADDRESS, components[0].start, |
119 | components[0].size); |
119 | components[0].size); |
120 | printf("done.\n"); |
120 | printf("done.\n"); |
121 | 121 | ||
122 | printf("\nBooting the kernel...\n"); |
122 | printf("\nBooting the kernel...\n"); |
123 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo); |
123 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo); |
124 | } |
124 | } |
125 | 125 | ||
126 | /** @} |
126 | /** @} |
127 | */ |
127 | */ |
128 | 128 | ||
129 | 129 |