| Mike Frysinger | 94bae5c | 2008-03-30 15:46:13 -0400 | [diff] [blame] | 1 | /* |
| 2 | * watchdog.c - driver for Blackfin on-chip watchdog |
| 3 | * |
| Mike Frysinger | 5443bc4 | 2009-11-12 18:42:07 -0500 | [diff] [blame] | 4 | * Copyright (c) 2007-2009 Analog Devices Inc. |
| Mike Frysinger | 94bae5c | 2008-03-30 15:46:13 -0400 | [diff] [blame] | 5 | * |
| 6 | * Licensed under the GPL-2 or later. |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <watchdog.h> |
| 11 | #include <asm/blackfin.h> |
| 12 | |
| Mike Frysinger | 94bae5c | 2008-03-30 15:46:13 -0400 | [diff] [blame] | 13 | void hw_watchdog_reset(void) |
| 14 | { |
| 15 | bfin_write_WDOG_STAT(0); |
| 16 | } |
| 17 | |
| 18 | void hw_watchdog_init(void) |
| 19 | { |
| 20 | bfin_write_WDOG_CNT(5 * get_sclk()); /* 5 second timeout */ |
| 21 | hw_watchdog_reset(); |
| 22 | bfin_write_WDOG_CTL(0x0); |
| 23 | } |