blob: 68aab5b7eab2d6ebda4daf6abe2d8d45f9ac051d [file] [log] [blame]
wdenk63e73c92004-02-23 22:22:28 +00001/*
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
33void 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
39ulong 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
49void 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
58ulong 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 */