1c10590307
The same file was replicated three times for certain soc/intel bootblocks, yet there are no indications or need to do chipset-specific initialisation. There is no harm in storing the TSC values in MMX registers even when they would not be used. Change-Id: Iec6fa0889f5887effca1d99ef830d383fb733648 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/30393 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
51 lines
1.9 KiB
ArmAsm
51 lines
1.9 KiB
ArmAsm
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2015 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/*
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* This is the original bootblock used by coreboot on x86 systems. It contains
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* a monolithic code flow, assembled from the following stages:
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* - reset16.inc: the reset vector
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* - entry16.inc: protected mode setup
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* - entry32.inc: segment descriptor setup
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* - timestamp.inc: store TSC in MMX registers
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* - generated/bootblock.inc: ROMCC part of the bootblock
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*
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* This is used on platforms which do not select C_ENVIRONMENT_BOOTBLOCK, and it
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* tries to do the absolute minimum before walking CBFS and jumping to romstage.
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*
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* This file assembles the bootblock program by the order of the includes. Thus,
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* it's extremely important that one pays very careful attention to the order
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* of the includes.
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*/
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#include <arch/x86/prologue.inc>
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#include <cpu/x86/16bit/entry16.inc>
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#include <cpu/x86/16bit/reset16.inc>
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#include <cpu/x86/32bit/entry32.inc>
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#include <arch/x86/timestamp.inc>
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#if IS_ENABLED(CONFIG_SSE)
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#include <cpu/x86/sse_enable.inc>
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#endif
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/*
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* This bootblock.inc file is generated by ROMCC. The above program flow
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* falls through to this point. ROMCC assumes the last function it parsed
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* is the main function and it places its instructions at the beginning of
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* the generated file. Moreover, any library/common code needed in bootblock
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* needs to come after bootblock.inc.
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*/
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#include <generated/bootblock.inc>
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