| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2012 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. |
| */ |
| |
| /* |
| * This file contains entry/exit functions for each stage during coreboot |
| * execution (bootblock entry and ramstage exit will depend on external |
| * loading). |
| * |
| * Entry points should be set in the linker script and honored by CBFS, |
| * so text section layout shouldn't matter. Still, it doesn't hurt to put |
| * stage_entry first (which XXXstage.ld will do automatically through the |
| * .text.stage_entry section created by -ffunction-sections). |
| */ |
| |
| #include <arch/stages.h> |
| #include <arch/cache.h> |
| |
| /** |
| * generic stage entry point. override this if board specific code is needed. |
| */ |
| __attribute__((weak)) void stage_entry(void) |
| { |
| main(); |
| } |
| |
| /* we had marked 'doit' as 'noreturn'. |
| * There is no apparent harm in leaving it as something we can return from, and in the one |
| * case where we call a payload, the payload is allowed to return. |
| * Hence, leave it as something we can return from. |
| */ |
| void stage_exit(void *addr) |
| { |
| void (*doit)(void) = addr; |
| /* |
| * Most stages load code so we need to sync caches here. Should maybe |
| * go into cbfs_load_stage() instead... |
| */ |
| cache_sync_instructions(); |
| doit(); |
| } |