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