| /* |
| * 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(_sram_size, 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(); |
| } |