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/*
* This file is part of the coreboot project.
*
* Copyright 2014 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 file contains entry/exit functions for each stage during coreboot
* execution (bootblock entry and ramstage exit will depend on external
* loading).
*
* Entry points must be placed at the location the previous stage jumps
* to (the lowest address in the stage image). This is done by giving
* stage_entry() its own section in .text and placing it first in the
* linker script.
*/
#include <arch/boot.h>
#include <arch/encoding.h>
#include <arch/stages.h>
#include <rules.h>
void stage_entry(void)
{
/*
* Save the FDT pointer before entering ramstage, because mscratch
* might be overwritten in the trap handler, and there is code in
* ramstage that generates misaligned access faults.
*/
if (ENV_RAMSTAGE)
rom_fdt = (const void *)read_csr(mscratch);
main();
}