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| Rev 4153 | Rev 4718 | ||
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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 | #include "mm.h" |
30 | #include "mm.h" |
| 31 | 31 | ||
| 32 | .section BOOTSTRAP |
32 | .section BOOTSTRAP |
| 33 | 33 | ||
| 34 | .global start |
34 | .global start |
| 35 | .global jump_to_kernel |
35 | .global jump_to_kernel |
| 36 | .global page_table |
36 | .global page_table |
| - | 37 | .global boot_stack |
|
| 37 | 38 | ||
| 38 | start: |
39 | start: |
| - | 40 | ldr sp, =boot_stack |
|
| 39 | b bootstrap |
41 | b bootstrap |
| 40 | 42 | ||
| 41 | jump_to_kernel: |
43 | jump_to_kernel: |
| 42 | # |
44 | # |
| 43 | # TODO |
45 | # TODO |
| 44 | # Make sure that the I-cache, D-cache and memory are mutually coherent |
46 | # Make sure that the I-cache, D-cache and memory are mutually coherent |
| 45 | # before passing control to the copied code. |
47 | # before passing control to the copied code. |
| 46 | # |
48 | # |
| 47 | bx r0 |
49 | bx r0 |
| 48 | 50 | ||
| - | 51 | #bootloader stack |
|
| - | 52 | .section ST |
|
| - | 53 | .space 4096 |
|
| - | 54 | boot_stack: |
|
| 49 | 55 | ||
| 50 | # place page_table to PT section |
56 | # place page_table to PT section |
| 51 | .section PT |
57 | .section PT |
| 52 | 58 | ||
| 53 | # make place for PTL0 page table |
59 | # make place for PTL0 page table |
| 54 | page_table: |
60 | page_table: |
| 55 | .skip PTL0_ENTRIES * PTL0_ENTRY_SIZE |
61 | .skip PTL0_ENTRIES * PTL0_ENTRY_SIZE |
| 56 | 62 | ||