| wdenk | e97d3d9 | 2004-02-23 22:22:28 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2000-2004 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | * |
| 23 | * |
| 24 | * Atapted for ppc4XX by Denis Peter |
| 25 | */ |
| 26 | |
| 27 | #include <common.h> |
| 28 | #include <commproc.h> |
| 29 | |
| 30 | |
| 31 | #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) |
| 32 | |
| 33 | void post_word_store (ulong a) |
| 34 | { |
| 35 | volatile void *save_addr = (volatile void *)(CFG_OCM_DATA_ADDR + CFG_POST_WORD_ADDR); |
| 36 | *(volatile ulong *) save_addr = a; |
| 37 | } |
| 38 | |
| 39 | ulong post_word_load (void) |
| 40 | { |
| 41 | volatile void *save_addr = (volatile void *)(CFG_OCM_DATA_ADDR + CFG_POST_WORD_ADDR); |
| 42 | return *(volatile ulong *) save_addr; |
| 43 | } |
| 44 | |
| 45 | #endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ |
| 46 | |
| 47 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
| 48 | |
| 49 | void bootcount_store (ulong a) |
| 50 | { |
| 51 | volatile ulong *save_addr = |
| 52 | (volatile ulong *)(CFG_OCM_DATA_ADDR + CFG_BOOTCOUNT_ADDR); |
| 53 | |
| 54 | save_addr[0] = a; |
| 55 | save_addr[1] = BOOTCOUNT_MAGIC; |
| 56 | } |
| 57 | |
| 58 | ulong bootcount_load (void) |
| 59 | { |
| 60 | volatile ulong *save_addr = |
| 61 | (volatile ulong *)(CFG_OCM_DATA_ADDR + CFG_BOOTCOUNT_ADDR); |
| 62 | |
| 63 | if (save_addr[1] != BOOTCOUNT_MAGIC) |
| 64 | return 0; |
| 65 | else |
| 66 | return save_addr[0]; |
| 67 | } |
| 68 | |
| 69 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ |