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1 | # |
1 | # |
2 | # Copyright (C) 2005 Jakub Jermar |
2 | # Copyright (C) 2005 Jakub Jermar |
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/regname.h> |
29 | #include <arch/asm/regname.h> |
30 | #include <arch/asm/spr.h> |
30 | #include <arch/asm/spr.h> |
- | 31 | #include <arch/boot/boot.h> |
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- | 32 | #include <arch/boot/memmap.h> |
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31 | 33 | ||
32 | .section K_TEXT_START |
34 | .section K_TEXT_START |
33 | 35 | ||
34 | .global kernel_image_start |
36 | .global kernel_image_start |
35 | - | ||
36 | kernel_image_start: |
37 | kernel_image_start: |
- | 38 | ||
- | 39 | # r10 contains physical address to memmap_t |
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- | 40 | # from boot loader |
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- | 41 | ||
- | 42 | lis r4, 0x80000000@ha |
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- | 43 | addi r4, r4, 0x80000000@l |
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- | 44 | ||
- | 45 | add r10, r10, r4 |
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- | 46 | ||
- | 47 | lis r4, memmap@ha |
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- | 48 | addi r4, r4, memmap@l # r4 = memmap |
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- | 49 | ||
- | 50 | lwz r5, 0(r10) # memmap->total |
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- | 51 | stw r5, 0(r4) |
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- | 52 | ||
- | 53 | lwzu r5, 4(r10) # memmap->count |
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- | 54 | stwu r5, 4(r4) |
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- | 55 | ||
- | 56 | cmpwi r5, 0 |
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- | 57 | beq memmap_end |
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- | 58 | ||
- | 59 | mtctr r5 |
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- | 60 | memmap_loop: |
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- | 61 | ||
- | 62 | lwzu r5, 4(r10) # memmap->zones[i].start |
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- | 63 | stwu r5, 4(r4) |
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- | 64 | ||
- | 65 | lwzu r5, 4(r10) # memmap->zones[i].size |
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- | 66 | stwu r5, 4(r4) |
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- | 67 | ||
- | 68 | bdnz memmap_loop |
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- | 69 | memmap_end: |
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- | 70 | ||
37 | b main_bsp |
71 | b main_bsp |
38 | 72 |