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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 | 42 | ||
43 | #include "mm.h" |
43 | #include "mm.h" |
44 | 44 | ||
45 | /** Kernel entry point address. */ |
45 | /** Kernel entry point address. */ |
46 | #define KERNEL_VIRTUAL_ADDRESS 0x80150000 |
46 | #define KERNEL_VIRTUAL_ADDRESS 0x80200000 |
47 | 47 | ||
48 | 48 | ||
49 | char *release = RELEASE; |
49 | char *release = RELEASE; |
50 | 50 | ||
51 | #ifdef REVISION |
51 | #ifdef REVISION |
52 | char *revision = ", revision " REVISION; |
52 | char *revision = ", revision " REVISION; |
53 | #else |
53 | #else |
54 | char *revision = ""; |
54 | char *revision = ""; |
55 | #endif |
55 | #endif |
56 | 56 | ||
57 | #ifdef TIMESTAMP |
57 | #ifdef TIMESTAMP |
58 | char *timestamp = "\nBuilt on " TIMESTAMP; |
58 | char *timestamp = "\nBuilt on " TIMESTAMP; |
59 | #else |
59 | #else |
60 | char *timestamp = ""; |
60 | char *timestamp = ""; |
61 | #endif |
61 | #endif |
62 | 62 | ||
63 | 63 | ||
64 | /** Prints bootloader version information. */ |
64 | /** Prints bootloader version information. */ |
65 | static void version_print(void) |
65 | static void version_print(void) |
66 | { |
66 | { |
67 | printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2007 HelenOS project\n", |
67 | printf("HelenOS ARM32 Bootloader\nRelease %s%s%s\nCopyright (c) 2007 HelenOS project\n", |
68 | release, revision, timestamp); |
68 | release, revision, timestamp); |
69 | } |
69 | } |
70 | 70 | ||
71 | /** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */ |
71 | /** Copies all images (kernel + user tasks) to #KERNEL_VIRTUAL_ADDRESS and jumps there. */ |
72 | void bootstrap(void) |
72 | void bootstrap(void) |
73 | { |
73 | { |
74 | mmu_start(); |
74 | mmu_start(); |
75 | version_print(); |
75 | version_print(); |
76 | 76 | ||
77 | component_t components[COMPONENTS]; |
77 | component_t components[COMPONENTS]; |
78 | bootinfo_t bootinfo; |
78 | bootinfo_t bootinfo; |
79 | init_components(components); |
79 | init_components(components); |
80 | 80 | ||
81 | printf("\nMemory statistics\n"); |
81 | printf("\nMemory statistics\n"); |
82 | printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
82 | printf(" kernel entry point at %L\n", KERNEL_VIRTUAL_ADDRESS); |
83 | printf(" %L: boot info structure\n", &bootinfo); |
83 | printf(" %L: boot info structure\n", &bootinfo); |
84 | 84 | ||
85 | unsigned int i, j; |
85 | unsigned int i, j; |
86 | for (i = 0; i < COMPONENTS; i++) { |
86 | for (i = 0; i < COMPONENTS; i++) { |
87 | printf(" %L: %s image (size %d bytes)\n", |
87 | printf(" %L: %s image (size %d bytes)\n", |
88 | components[i].start, components[i].name, components[i].size); |
88 | components[i].start, components[i].name, components[i].size); |
89 | } |
89 | } |
90 | 90 | ||
91 | printf("\nCopying components\n"); |
91 | printf("\nCopying components\n"); |
92 | 92 | ||
93 | unsigned int top = 0; |
93 | unsigned int top = 0; |
94 | bootinfo.cnt = 0; |
94 | bootinfo.cnt = 0; |
95 | for (i = 0; i < COMPONENTS; i++) { |
95 | for (i = 0; i < COMPONENTS; i++) { |
96 | printf(" %s...", components[i].name); |
96 | printf(" %s...", components[i].name); |
97 | top = ALIGN_UP(top, KERNEL_PAGE_SIZE); |
97 | top = ALIGN_UP(top, KERNEL_PAGE_SIZE); |
98 | memcpy(((void *) KERNEL_VIRTUAL_ADDRESS) + top, components[i].start, components[i].size); |
98 | memcpy(((void *) KERNEL_VIRTUAL_ADDRESS) + top, components[i].start, components[i].size); |
99 | if (i > 0) { |
99 | if (i > 0) { |
100 | bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top; |
100 | bootinfo.tasks[bootinfo.cnt].addr = ((void *) KERNEL_VIRTUAL_ADDRESS) + top; |
101 | bootinfo.tasks[bootinfo.cnt].size = components[i].size; |
101 | bootinfo.tasks[bootinfo.cnt].size = components[i].size; |
102 | bootinfo.cnt++; |
102 | bootinfo.cnt++; |
103 | } |
103 | } |
104 | top += components[i].size; |
104 | top += components[i].size; |
105 | printf("done.\n"); |
105 | printf("done.\n"); |
106 | } |
106 | } |
107 | 107 | ||
108 | printf("\nBooting the kernel...\n"); |
108 | printf("\nBooting the kernel...\n"); |
109 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo)); |
109 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo)); |
110 | } |
110 | } |
111 | 111 | ||
112 | /** @} |
112 | /** @} |
113 | */ |
113 | */ |
114 | 114 | ||
115 | 115 |