]>
Commit | Line | Data |
---|---|---|
98250e8e JS |
1 | /* |
2 | * (C) Copyright 2002 | |
3 | * Lineo, Inc. <www.lineo.com> | |
4 | * Bernhard Kuhn <bkuhn@lineo.com> | |
5 | * | |
6 | * (C) Copyright 2002 | |
7 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
8 | * Marius Groeger <mgroeger@sysgo.de> | |
9 | * | |
10 | * (C) Copyright 2002 | |
11 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
12 | * Alex Zuepke <azu@sysgo.de> | |
13 | * | |
14 | * See file CREDITS for list of people who contributed to this | |
15 | * project. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or | |
18 | * modify it under the terms of the GNU General Public License as | |
19 | * published by the Free Software Foundation; either version 2 of | |
20 | * the License, or (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
30 | * MA 02111-1307 USA | |
31 | */ | |
32 | ||
33 | #include <common.h> | |
34 | #include <asm/io.h> | |
35 | #include <asm/arch/hardware.h> | |
36 | #include <asm/arch/at91_st.h> | |
37 | ||
38 | void board_reset(void) __attribute__((__weak__)); | |
39 | ||
40 | void reset_cpu(ulong ignored) | |
41 | { | |
42 | at91_st_t *st = (at91_st_t *) AT91_ST_BASE; | |
43 | #if defined(CONFIG_AT91RM9200_USART) | |
44 | /*shutdown the console to avoid strange chars during reset */ | |
45 | serial_exit(); | |
46 | #endif | |
47 | ||
48 | if (board_reset) | |
49 | board_reset(); | |
50 | ||
51 | /* Reset the cpu by setting up the watchdog timer */ | |
52 | writel(AT91_ST_WDMR_RSTEN | AT91_ST_WDMR_EXTEN | AT91_ST_WDMR_WDV(2), | |
53 | &st->wdmr); | |
54 | writel(AT91_ST_CR_WDRST, &st->cr); | |
55 | /* and let it timeout */ | |
56 | while (1) | |
57 | ; | |
58 | /* Never reached */ | |
59 | } |