Rev 1787 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 1787 | Rev 2071 | ||
|---|---|---|---|
| 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/boot/boot.h> |
30 | #include <arch/boot/boot.h> |
| 31 | 31 | ||
| 32 | .section K_TEXT_START, "ax" |
32 | .section K_TEXT_START, "ax" |
| 33 | 33 | ||
| 34 | .global kernel_image_start |
34 | .global kernel_image_start |
| 35 | kernel_image_start: |
35 | kernel_image_start: |
| 36 | 36 | ||
| 37 | # load temporal kernel stack |
37 | # load temporal kernel stack |
| 38 | 38 | ||
| 39 | lis sp, kernel_stack@ha |
39 | lis sp, kernel_stack@ha |
| 40 | addi sp, sp, kernel_stack@l |
40 | addi sp, sp, kernel_stack@l |
| 41 | 41 | ||
| 42 | # set kernel stack for interrupt handling |
42 | # set kernel stack for interrupt handling |
| 43 | 43 | ||
| 44 | mr r31, sp |
44 | mr r31, sp |
| 45 | subis r31, r31, 0x8000 |
45 | subis r31, r31, 0x8000 |
| 46 | mtsprg0 r31 |
46 | mtsprg0 r31 |
| 47 | 47 | ||
| 48 | # r3 contains physical address of bootinfo_t |
48 | # r3 contains physical address of bootinfo_t |
| 49 | # r4 contains size of bootinfo_t |
49 | # r4 contains size of bootinfo_t |
| 50 | 50 | ||
| 51 | cmpwi r4, 0 |
51 | cmpwi r4, 0 |
| 52 | beq bootinfo_end |
52 | beq bootinfo_end |
| 53 | 53 | ||
| 54 | addis r3, r3, 0x8000 |
54 | addis r3, r3, 0x8000 |
| 55 | 55 | ||
| 56 | lis r31, bootinfo@ha |
56 | lis r31, bootinfo@ha |
| 57 | addi r31, r31, bootinfo@l # r31 = bootinfo |
57 | addi r31, r31, bootinfo@l # r31 = bootinfo |
| 58 | 58 | ||
| 59 | bootinfo_loop: |
59 | bootinfo_loop: |
| 60 | 60 | ||
| 61 | lwz r30, 0(r3) |
61 | lwz r30, 0(r3) |
| 62 | stw r30, 0(r31) |
62 | stw r30, 0(r31) |
| 63 | 63 | ||
| 64 | addi r3, r3, 4 |
64 | addi r3, r3, 4 |
| 65 | addi r31, r31, 4 |
65 | addi r31, r31, 4 |
| 66 | subi r4, r4, 4 |
66 | subi r4, r4, 4 |
| 67 | 67 | ||
| 68 | cmpwi r4, 0 |
68 | cmpwi r4, 0 |
| 69 | bgt bootinfo_loop |
69 | bgt bootinfo_loop |
| 70 | 70 | ||
| 71 | bootinfo_end: |
71 | bootinfo_end: |
| 72 | 72 | ||
| 73 | bl arch_pre_main |
73 | bl arch_pre_main |
| 74 | b main_bsp |
74 | b main_bsp |
| 75 | 75 | ||
| 76 | .section K_DATA_START, "aw", @progbits |
76 | .section K_DATA_START, "aw", @progbits |
| 77 | 77 | ||
| 78 | .align 12 |
78 | .align 12 |
| 79 | kernel_stack_bottom: |
79 | kernel_stack_bottom: |
| 80 | .space TEMP_STACK_SIZE |
80 | .space TEMP_STACK_SIZE |
| 81 | kernel_stack: |
81 | kernel_stack: |
| 82 | 82 | ||