blob: 6346527677f5a1f572d924cc9ae23da595642512 [file] [log] [blame]
Stefan Roesee4a95d12010-04-28 10:47:36 +02001/*
2 * (C) Copyright 2010
3 * Stefan Roese, DENX Software Engineering, sr@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#include <common.h>
25#include <asm/io.h>
26
27/*
28 * Only override CONFIG_SYS_BOOTCOUNT_ADDR if not already defined. This
29 * way, some boards can define it directly in their config header.
30 */
31#if !defined(CONFIG_SYS_BOOTCOUNT_ADDR)
32
33#if defined(CONFIG_MPC5xxx)
34#define CONFIG_SYS_BOOTCOUNT_ADDR (MPC5XXX_CDM_BRDCRMB)
35#define CONFIG_SYS_BOOTCOUNT_SINGLEWORD
36#endif /* defined(CONFIG_MPC5xxx) */
37
38#if defined(CONFIG_8xx)
39#define CONFIG_SYS_BOOTCOUNT_ADDR (((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + \
40 CPM_BOOTCOUNT_ADDR)
41#endif /* defined(CONFIG_8xx) */
42
43#if defined(CONFIG_MPC8260)
44#include <asm/cpm_8260.h>
45
46#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR)
47#endif /* defined(CONFIG_MPC8260) */
48
49#if defined(CONFIG_MPC8360)
50#include <asm/immap_qe.h>
51
52#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + 0x110000 + \
53 QE_MURAM_SIZE - 2 * sizeof(u32))
54#endif /* defined(CONFIG_MPC8360) */
55
56#if defined(CONFIG_4xx)
57#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_OCM_DATA_ADDR + \
58 CONFIG_SYS_BOOTCOUNT_ADDR)
59#endif /* defined(CONFIG_4xx) */
60
61#endif /* !defined(CONFIG_SYS_BOOTCOUNT_ADDR) */
62
63void bootcount_store(ulong a)
64{
65 void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
66
67#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
68 out_be32(reg, (BOOTCOUNT_MAGIC & 0xffff0000) | a);
69#else
70 out_be32(reg, a);
71 out_be32(reg + 4, BOOTCOUNT_MAGIC);
72#endif
73}
74
75ulong bootcount_load(void)
76{
77 void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
78
79#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
80 if (in_be16(reg + 2) != (BOOTCOUNT_MAGIC & 0xffff))
81 return 0;
82 else
83 return in_be16(reg);
84#else
85 if (in_be32(reg + 4) != BOOTCOUNT_MAGIC)
86 return 0;
87 else
88 return in_be32(reg);
89#endif
90}