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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> | |
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 */ |