diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/watchdog/Makefile | 1 | ||||
| -rw-r--r-- | drivers/watchdog/bfin_wdt.c | 26 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 13e7c37..d57578d 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -33,6 +33,7 @@ endif COBJS-$(CONFIG_TNETV107X_WATCHDOG) += tnetv107x_wdt.o COBJS-$(CONFIG_S5P) += s5p_wdt.o COBJS-$(CONFIG_XILINX_TB_WATCHDOG) += xilinx_tb_wdt.o +COBJS-$(CONFIG_BFIN_WATCHDOG) += bfin_wdt.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c new file mode 100644 index 0000000..7a6756b --- /dev/null +++ b/drivers/watchdog/bfin_wdt.c @@ -0,0 +1,26 @@ +/* + * watchdog.c - driver for Blackfin on-chip watchdog + * + * Copyright (c) 2007-2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include <common.h> +#include <watchdog.h> +#include <asm/blackfin.h> +#include <asm/mach-common/bits/watchdog.h> + +void hw_watchdog_reset(void) +{ + bfin_write_WDOG_STAT(0); +} + +void hw_watchdog_init(void) +{ + bfin_write_WDOG_CTL(WDDIS); + SSYNC(); + bfin_write_WDOG_CNT(CONFIG_WATCHDOG_TIMEOUT_MSECS / 1000 * get_sclk()); + hw_watchdog_reset(); + bfin_write_WDOG_CTL(WDEN); +} |