| 0,0 → 1,81 |
|---|
| # |
| # Copyright (C) 2005 Jakub Jermar |
| # 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/regname.h> |
| #include <arch/boot/boot.h> |
| |
| .section K_TEXT_START, "ax" |
| |
| .global kernel_image_start |
| kernel_image_start: |
| |
| # load temporal kernel stack |
| |
| lis sp, kernel_stack@ha |
| addi sp, sp, kernel_stack@l |
| |
| # set kernel stack for interrupt handling |
| |
| mr r31, sp |
| subis r31, r31, 0x8000 |
| mtsprg0 r31 |
| |
| # r3 contains physical address of bootinfo_t |
| # r4 contains size of bootinfo_t |
| |
| cmpwi r4, 0 |
| beq bootinfo_end |
| |
| addis r3, r3, 0x8000 |
| |
| lis r31, bootinfo@ha |
| addi r31, r31, bootinfo@l # r31 = bootinfo |
| |
| bootinfo_loop: |
| |
| lwz r30, 0(r3) |
| stw r30, 0(r31) |
| |
| addi r3, r3, 4 |
| addi r31, r31, 4 |
| subi r4, r4, 4 |
| |
| cmpwi r4, 0 |
| bgt bootinfo_loop |
| |
| bootinfo_end: |
| |
| bl arch_pre_main |
| b main_bsp |
| |
| .section K_DATA_START, "aw", @progbits |
| |
| .align 12 |
| kernel_stack_bottom: |
| .space TEMP_STACK_SIZE |
| kernel_stack: |