diff options
Diffstat (limited to 'src/arch/arm/armv7/bootblock_simple.c')
-rw-r--r-- | src/arch/arm/armv7/bootblock_simple.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/arch/arm/armv7/bootblock_simple.c b/src/arch/arm/armv7/bootblock_simple.c new file mode 100644 index 0000000000..f447034029 --- /dev/null +++ b/src/arch/arm/armv7/bootblock_simple.c @@ -0,0 +1,63 @@ +/* + * 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 <arch/cache.h> +#include <arch/hlt.h> +#include <arch/stages.h> +#include <bootblock_common.h> +#include <cbfs.h> +#include <console/console.h> +#include <smp/node.h> + +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); + + arm_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); + + 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(); +} |