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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.
*/
#include <arch/cache.h>
#include <arch/exception.h>
#include <arch/hlt.h>
#include <arch/stages.h>
#include <program_loading.h>
#include <soc/cache.h>
#include <soc/early_configs.h>
#include <stdlib.h>
#include <symbols.h>
#include <vendorcode/google/chromeos/chromeos.h>
static void enable_cache(void)
{
mmu_init();
/* Whole space is uncached. */
mmu_config_range(0, 4096, DCACHE_OFF);
/* SRAM is cached. MMU code will round size up to page size. */
mmu_config_range((uintptr_t)_sram/MiB,
DIV_ROUND_UP(REGION_SIZE(sram), MiB),
DCACHE_WRITEBACK);
mmu_disable_range(0, 1);
dcache_mmu_enable();
}
void verstage_mainboard_init(void)
{
/* Do the minimum to run vboot at full speed */
configure_l2_cache();
enable_cache();
early_mainboard_init();
}
void stage_entry(void)
{
asm volatile ("bl arm_init_caches"
: : : "r0", "r1", "r2", "r3", "r4", "r5", "ip");
main();
}
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