/* * This file is part of the coreboot project. * * Copyright 2010 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, * MA 02110-1301 USA */ #include <bootblock_common.h> #include <arch/cache.h> #include <arch/hlt.h> #include <arch/stages.h> #include <cbfs.h> #include <console/console.h> #include <smp/node.h> #include "stages.c" void main(void) { const char *stage_name = "fallback/romstage"; void *entry; uint32_t sctlr; /* Globally disable MMU, caches, and branch prediction (these should * be disabled by default on reset) */ sctlr = read_sctlr(); sctlr &= ~(SCTLR_M | SCTLR_C | SCTLR_Z | SCTLR_I); write_sctlr(sctlr); armv7_invalidate_caches(); /* * Re-enable icache and branch prediction. MMU and dcache will be * set up later. */ sctlr = read_sctlr(); sctlr |= SCTLR_Z | SCTLR_I; write_sctlr(sctlr); if (boot_cpu()) { bootblock_cpu_init(); bootblock_mainboard_init(); } #if CONFIG_BOOTBLOCK_CONSOLE console_init(); #endif entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, stage_name); if (entry) stage_exit(entry); hlt(); }