| 0,0 → 1,77 |
|---|
| # |
| # Copyright (c) 2007 Michal Kebrt |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| # |
| # - Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # - Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| |
| #include <arch/asm/boot.h> |
| |
| .text |
| |
| .global kernel_image_start |
| .global exc_stack |
| .global supervisor_sp |
| |
| kernel_image_start: |
| |
| # switch to supervisor mode |
| mrs r3, cpsr |
| bic r3, r3, #0x1f |
| orr r3, r3, #0x13 |
| msr cpsr_c, r3 |
| |
| ldr sp, =temp_stack |
| |
| cmp r2, #0 |
| beq bootinfo_end |
| |
| ldr r3, =bootinfo |
| |
| bootinfo_loop: |
| ldr r4, [r1] |
| str r4, [r3] |
| |
| add r1, r1, #4 |
| add r3, r3, #4 |
| add r2, r2, #-4 |
| |
| cmp r2, #0 |
| bne bootinfo_loop |
| |
| bootinfo_end: |
| |
| bl arch_pre_main |
| |
| bl main_bsp |
| |
| .space TEMP_STACK_SIZE |
| temp_stack: |
| |
| .space 1024 |
| exc_stack: |
| |
| supervisor_sp: |
| .space 4 |
| |