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#
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#
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# Copyright (C) 2005 Jakub Jermar
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# Copyright (C) 2005 Jakub Jermar
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# All rights reserved.
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# All rights reserved.
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#
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#
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# Redistribution and use in source and binary forms, with or without
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# modification, are permitted provided that the following conditions
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# are met:
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# are met:
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#
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#
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# - Redistributions of source code must retain the above copyright
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# - Redistributions of source code must retain the above copyright
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#   notice, this list of conditions and the following disclaimer.
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#   notice, this list of conditions and the following disclaimer.
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# - Redistributions in binary form must reproduce the above copyright
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# - Redistributions in binary form must reproduce the above copyright
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#   notice, this list of conditions and the following disclaimer in the
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#   notice, this list of conditions and the following disclaimer in the
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#   documentation and/or other materials provided with the distribution.
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#   documentation and/or other materials provided with the distribution.
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# - The name of the author may not be used to endorse or promote products
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# - The name of the author may not be used to endorse or promote products
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#   derived from this software without specific prior written permission.
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#   derived from this software without specific prior written permission.
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#
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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#
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#include <arch/asm/regname.h>
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#include <arch/asm/regname.h>
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#include <arch/boot/boot.h>
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#include <arch/boot/boot.h>
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#include <arch/boot/memmap.h>
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.section K_TEXT_START, "ax"
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.section K_TEXT_START, "ax"
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.global kernel_image_start
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.global kernel_image_start
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kernel_image_start:
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kernel_image_start:
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	# load temporary stack
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	# load temporary stack
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	lis sp, end_stack@ha
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	lis sp, end_stack@ha
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	addi sp, sp, end_stack@l
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	addi sp, sp, end_stack@l
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	# r10 contains physical address to memmap_t
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	# r3 contains physical address of bootinfo_t
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	# from boot loader
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	# r4 contains size of bootinfo_t
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	lis r31, 0x80000000@ha
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	lis r31, 0x80000000@ha
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	addi r31, r31, 0x80000000@l
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	addi r31, r31, 0x80000000@l
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	add r3, r3, r31
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	add r3, r3, r31
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	lis r31, memmap@ha
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	lis r31, bootinfo@ha
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	addi r31, r31, memmap@l    # r31 = memmap
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	addi r31, r31, bootinfo@l  # r31 = bootinfo
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	lwz r30, 0(r3)             # memmap->total
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	cmpwi r4, 0
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	stw r30, 0(r31)
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	beq bootinfo_end
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	lwzu r30, 4(r3)            # memmap->count
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	stwu r30, 4(r31)
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	cmpwi r30, 0
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	beq memmap_end
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	mtctr r30
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	memmap_loop:
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	bootinfo_loop:
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		lwzu r30, 4(r3)           # memmap->zones[i].start
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		stwu r30, 4(r31)
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		lwzu r30, 4(r3)           # memmap->zones[i].size
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		lwz r30, 0(r3)
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		stwu r30, 4(r31)
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		stw r30, 0(r31)
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		addi r3, r3, 4
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		addi r31, r31, 4
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		subi r4, r4, 4
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		cmpwi r4, 0
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	bdnz memmap_loop
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		bgt bootinfo_loop
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	memmap_end:
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	bootinfo_end:
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	b main_bsp
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	b main_bsp
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.section K_DATA_START, "aw", @progbits
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.section K_DATA_START, "aw", @progbits
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	.space TEMP_STACK_SIZE
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	.space TEMP_STACK_SIZE
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end_stack:
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end_stack:
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