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2128 | jermar | 1 | # |
2159 | kebrt | 2 | # Copyright (c) 2007 Michal Kebrt |
2128 | jermar | 3 | # All rights reserved. |
4 | # |
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5 | # Redistribution and use in source and binary forms, with or without |
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6 | # modification, are permitted provided that the following conditions |
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7 | # are met: |
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8 | # |
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9 | # - Redistributions of source code must retain the above copyright |
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10 | # notice, this list of conditions and the following disclaimer. |
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11 | # - Redistributions in binary form must reproduce the above copyright |
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12 | # notice, this list of conditions and the following disclaimer in the |
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13 | # documentation and/or other materials provided with the distribution. |
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14 | # - The name of the author may not be used to endorse or promote products |
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15 | # derived from this software without specific prior written permission. |
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16 | # |
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17 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | # |
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28 | |||
2159 | kebrt | 29 | #include <arch/asm/boot.h> |
30 | |||
2155 | kebrt | 31 | .text |
2146 | kebrt | 32 | |
2128 | jermar | 33 | .global kernel_image_start |
2280 | jancik | 34 | .global exc_stack |
2284 | stepan | 35 | .global exc_stack |
2280 | jancik | 36 | .global supervisor_sp |
2146 | kebrt | 37 | |
2284 | stepan | 38 | |
2128 | jermar | 39 | kernel_image_start: |
2286 | stepan | 40 | |
2329 | kebrt | 41 | # switch to system mode |
2286 | stepan | 42 | mrs r3, cpsr |
43 | orr r3, r3, #0x1f |
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44 | msr cpsr_c, r3 |
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45 | |||
2159 | kebrt | 46 | ldr sp, =end_stack |
2294 | kebrt | 47 | |
2159 | kebrt | 48 | cmp r2, #0 |
49 | beq bootinfo_end |
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50 | |||
51 | ldr r3, =bootinfo |
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52 | |||
53 | bootinfo_loop: |
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54 | ldr r4, [r1] |
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55 | str r4, [r3] |
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56 | |||
57 | add r1, r1, #4 |
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58 | add r3, r3, #4 |
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59 | add r2, r2, #-4 |
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60 | |||
61 | cmp r2, #0 |
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62 | bne bootinfo_loop |
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63 | |||
64 | bootinfo_end: |
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65 | |||
66 | bl arch_pre_main |
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67 | |||
2245 | stepan | 68 | bl main_bsp |
2168 | kebrt | 69 | |
2159 | kebrt | 70 | .space TEMP_STACK_SIZE |
71 | end_stack: |
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2329 | kebrt | 72 | |
2235 | stepan | 73 | .space 1024 |
2280 | jancik | 74 | exc_stack: |
2329 | kebrt | 75 | |
2280 | jancik | 76 | supervisor_sp: |
77 | .space 4 |
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78 |