blob: f9ce539ecb45f5734621a971784a7e553ac8e0f8 [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
Michael Weiss955ea6f2010-05-20 16:09:34 +020038#if defined(CONFIG_MPC512X)
39#define CONFIG_SYS_BOOTCOUNT_ADDR (&((immap_t *)CONFIG_SYS_IMMR)->clk.bcr)
40#define CONFIG_SYS_BOOTCOUNT_SINGLEWORD
41#endif /* defined(CONFIG_MPC512X) */
42
Stefan Roesee4a95d12010-04-28 10:47:36 +020043#if defined(CONFIG_8xx)
44#define CONFIG_SYS_BOOTCOUNT_ADDR (((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + \
45 CPM_BOOTCOUNT_ADDR)
46#endif /* defined(CONFIG_8xx) */
47
48#if defined(CONFIG_MPC8260)
49#include <asm/cpm_8260.h>
50
51#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR)
52#endif /* defined(CONFIG_MPC8260) */
53
Heiko Schocher62ddcf02010-02-18 08:08:25 +010054#if defined(CONFIG_QE)
Stefan Roesee4a95d12010-04-28 10:47:36 +020055#include <asm/immap_qe.h>
56
57#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_IMMR + 0x110000 + \
58 QE_MURAM_SIZE - 2 * sizeof(u32))
59#endif /* defined(CONFIG_MPC8360) */
60
61#if defined(CONFIG_4xx)
62#define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_OCM_DATA_ADDR + \
63 CONFIG_SYS_BOOTCOUNT_ADDR)
64#endif /* defined(CONFIG_4xx) */
65
66#endif /* !defined(CONFIG_SYS_BOOTCOUNT_ADDR) */
67
68void bootcount_store(ulong a)
69{
70 void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
71
72#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
73 out_be32(reg, (BOOTCOUNT_MAGIC & 0xffff0000) | a);
74#else
75 out_be32(reg, a);
76 out_be32(reg + 4, BOOTCOUNT_MAGIC);
77#endif
78}
79
80ulong bootcount_load(void)
81{
82 void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
83
84#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
Michael Weiss59dde442010-05-20 16:09:35 +020085 u32 tmp = in_be32(reg);
86
87 if ((tmp & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
Stefan Roesee4a95d12010-04-28 10:47:36 +020088 return 0;
89 else
Michael Weiss59dde442010-05-20 16:09:35 +020090 return (tmp & 0x0000ffff);
Stefan Roesee4a95d12010-04-28 10:47:36 +020091#else
92 if (in_be32(reg + 4) != BOOTCOUNT_MAGIC)
93 return 0;
94 else
95 return in_be32(reg);
96#endif
97}