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1 | # |
1 | # |
2 | # Copyright (c) 2003-2007 Jakub Jermar |
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 | #include <arch/asm/boot.h> |
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- | 30 | ||
- | 31 | .text |
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- | 32 | ||
29 | .global kernel_image_start |
33 | .global kernel_image_start |
- | 34 | .global exc_stack |
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- | 35 | .global supervisor_sp |
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- | 36 | ||
30 | kernel_image_start: |
37 | kernel_image_start: |
- | 38 | ||
- | 39 | # switch to supervisor mode |
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- | 40 | mrs r3, cpsr |
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- | 41 | bic r3, r3, #0x1f |
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- | 42 | orr r3, r3, #0x13 |
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- | 43 | msr cpsr_c, r3 |
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- | 44 | ||
- | 45 | ldr sp, =temp_stack |
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- | 46 | ||
- | 47 | cmp r2, #0 |
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- | 48 | beq bootinfo_end |
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- | 49 | ||
- | 50 | ldr r3, =bootinfo |
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- | 51 | ||
- | 52 | bootinfo_loop: |
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- | 53 | ldr r4, [r1] |
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- | 54 | str r4, [r3] |
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31 | 55 | ||
- | 56 | add r1, r1, #4 |
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- | 57 | add r3, r3, #4 |
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- | 58 | add r2, r2, #-4 |
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- | 59 | ||
32 | /* TODO */ |
60 | cmp r2, #0 |
- | 61 | bne bootinfo_loop |
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33 | 62 | ||
- | 63 | bootinfo_end: |
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- | 64 | ||
- | 65 | bl arch_pre_main |
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34 | 0: |
66 | |
35 | b 0b |
67 | bl main_bsp |
- | 68 | ||
- | 69 | .space TEMP_STACK_SIZE |
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- | 70 | temp_stack: |
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- | 71 | ||
- | 72 | .space 1024 |
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- | 73 | exc_stack: |
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- | 74 | ||
- | 75 | supervisor_sp: |
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- | 76 | .space 4 |
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- | 77 | ||
36 | 78 |