0,0 → 1,71 |
# |
# 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/asm/spr.h> |
#include <arch/boot/boot.h> |
#include <arch/boot/memmap.h> |
|
.section K_TEXT_START |
|
.global kernel_image_start |
kernel_image_start: |
|
# r10 contains physical address to memmap_t |
# from boot loader |
|
lis r4, 0x80000000@ha |
addi r4, r4, 0x80000000@l |
|
add r10, r10, r4 |
|
lis r4, memmap@ha |
addi r4, r4, memmap@l # r4 = memmap |
|
lwz r5, 0(r10) # memmap->total |
stw r5, 0(r4) |
|
lwzu r5, 4(r10) # memmap->count |
stwu r5, 4(r4) |
|
cmpwi r5, 0 |
beq memmap_end |
|
mtctr r5 |
memmap_loop: |
|
lwzu r5, 4(r10) # memmap->zones[i].start |
stwu r5, 4(r4) |
|
lwzu r5, 4(r10) # memmap->zones[i].size |
stwu r5, 4(r4) |
|
bdnz memmap_loop |
memmap_end: |
|
b main_bsp |