60 lines
1.7 KiB
ArmAsm
60 lines
1.7 KiB
ArmAsm
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/******************************************************************************
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* Copyright (c) 2004, 2011 IBM Corporation
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* All rights reserved.
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* This program and the accompanying materials
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* are made available under the terms of the BSD License
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* which accompanies this distribution, and is available at
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* http://www.opensource.org/licenses/bsd-license.php
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*
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* Contributors:
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* IBM Corporation - initial implementation
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*****************************************************************************/
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#include <cpu.h>
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#include <xvect.h>
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.section ".slof.loader","ax"
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/* this only works if paflof is running below 4GB */
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lis r31, fdt_start@h /* save address of */
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ori r31, r31, fdt_start@l /* flattened device */
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std r3, 0(r31) /* tree */
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/* this only works if paflof is running below 4GB */
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lis r31, romfs_base@h /* save address of */
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ori r31, r31, romfs_base@l /* the romfs */
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std r4, 0(r31)
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/* this only works if paflof is running below 4GB */
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lis r31, epapr_magic@h /* if it is an epapr compliant */
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ori r31, r31, epapr_magic@l /* low level firmware; then r6 */
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std r6, 0(r31) /* contains the epapr magic */
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/* this only works if paflof is running below 4GB */
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lis r31, epapr_ima_size@h
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ori r31, r31, epapr_ima_size@l
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std r7, 0(r31) /* r7 contains the IMA size */
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/* fill in handler address */
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/* this only works if paflof is running below 4GB */
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mfmsr r0
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mtsrr1 r0
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lis r3, _slof_text@h
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ori r3, r3, _slof_text@l
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ld r3, 0(r3)
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std r3, XVECT_M_HANDLER(0)
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#ifdef BROKEN_SC1
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/* Patch potentially broken sc 1 instructions */
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lis r3, _slof_text@h
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ori r3, r3, _slof_text@l
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lis r4, _slof_text_end@h
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ori r4, r4, _slof_text_end@l
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li r5, 0
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bl .patch_broken_sc1
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#endif
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/* GO! */
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ba 0x100
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