/* * This file is part of the coreboot project. * * Copyright 2015 Google Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ /* * This is the original bootblock used by coreboot on x86 systems. It contains * a monolithic code flow, assembled from the following stages: * - reset16.inc: the reset vector * - entry16.inc: protected mode setup * - entry32.inc: segment descriptor setup * - CONFIG_CHIPSET_BOOTBLOCK_INCLUDE: chipset-specific initialization * - generated/bootblock.inc: ROMCC part of the bootblock * * This is used on platforms which do not select C_ENVIRONMENT_BOOTBLOCK, and it * tries to do the absolute minimum before walking CBFS and jumping to romstage. * * This file assembles the bootblock program by the order of the includes. Thus, * it's extremely important that one pays very careful attention to the order * of the includes. */ #include <arch/x86/prologue.inc> #include <cpu/x86/16bit/entry16.inc> #include <cpu/x86/16bit/reset16.inc> #include <cpu/x86/32bit/entry32.inc> #ifdef CONFIG_CHIPSET_BOOTBLOCK_INCLUDE #include CONFIG_CHIPSET_BOOTBLOCK_INCLUDE #endif #if IS_ENABLED(CONFIG_SSE) #include <cpu/x86/sse_enable.inc> #endif /* * This bootblock.inc file is generated by ROMCC. The above program flow * falls through to this point. ROMCC assumes the last function it parsed * is the main function and it places its instructions at the beginning of * the generated file. Moreover, any library/common code needed in bootblock * needs to come after bootblock.inc. */ #include <generated/bootblock.inc>