projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 63e73c9a WD |
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> | |
| 1754f50b | 29 | #include <asm/io.h> |
| 63e73c9a WD |
30 | |
| 31 | #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) | |
| 32 | ||
| 6d0f6bcf JCPV |
33 | #if defined(CONFIG_SYS_POST_WORD_ADDR) |
| 34 | # define _POST_ADDR ((CONFIG_SYS_OCM_DATA_ADDR) + (CONFIG_SYS_POST_WORD_ADDR)) | |
| 35 | #elif defined(CONFIG_SYS_POST_ALT_WORD_ADDR) | |
| 36 | # define _POST_ADDR (CONFIG_SYS_POST_ALT_WORD_ADDR) | |
| 22f371b6 | 37 | #endif |
| 1754f50b | 38 | |
| 63e73c9a WD |
39 | void post_word_store (ulong a) |
| 40 | { | |
| 22f371b6 GE |
41 | volatile void *save_addr = (volatile void *)(_POST_ADDR); |
| 42 | ||
| 43 | out_be32(save_addr, a); | |
| 63e73c9a WD |
44 | } |
| 45 | ||
| 46 | ulong post_word_load (void) | |
| 47 | { | |
| 22f371b6 GE |
48 | volatile void *save_addr = (volatile void *)(_POST_ADDR); |
| 49 | ||
| 50 | return in_be32(save_addr); | |
| 63e73c9a WD |
51 | } |
| 52 | ||
| 53 | #endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ | |
| 54 | ||
| 55 | #ifdef CONFIG_BOOTCOUNT_LIMIT | |
| 56 | ||
| 57 | void bootcount_store (ulong a) | |
| 58 | { | |
| 59 | volatile ulong *save_addr = | |
| 6d0f6bcf | 60 | (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); |
| 63e73c9a WD |
61 | |
| 62 | save_addr[0] = a; | |
| 63 | save_addr[1] = BOOTCOUNT_MAGIC; | |
| 64 | } | |
| 65 | ||
| 66 | ulong bootcount_load (void) | |
| 67 | { | |
| 68 | volatile ulong *save_addr = | |
| 6d0f6bcf | 69 | (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); |
| 63e73c9a WD |
70 | |
| 71 | if (save_addr[1] != BOOTCOUNT_MAGIC) | |
| 72 | return 0; | |
| 73 | else | |
| 74 | return save_addr[0]; | |
| 75 | } | |
| 76 | ||
| 77 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ |