]> git.ipfire.org Git - people/ms/u-boot.git/blob - cpu/ppc4xx/commproc.c
rename CFG_ macros to CONFIG_SYS
[people/ms/u-boot.git] / cpu / ppc4xx / commproc.c
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 #include <asm/io.h>
30
31 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
32
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)
37 #endif
38
39 void post_word_store (ulong a)
40 {
41 volatile void *save_addr = (volatile void *)(_POST_ADDR);
42
43 out_be32(save_addr, a);
44 }
45
46 ulong post_word_load (void)
47 {
48 volatile void *save_addr = (volatile void *)(_POST_ADDR);
49
50 return in_be32(save_addr);
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 =
60 (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR);
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 =
69 (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR);
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 */