diff options
| author | Stefan Roese <sr@denx.de> | 2019-04-03 07:37:40 +0200 |
|---|---|---|
| committer | Eugen Hristev <eugen.hristev@microchip.com> | 2019-04-09 09:28:50 +0300 |
| commit | 256c2ff0cc6cdc8cf7c225bc6e03b92afae353b4 (patch) | |
| tree | 2ee19c4cdb862e194900282f1efe0377135895b4 /arch/arm/mach-at91/include | |
| parent | 05d4b8e4ad9b24a2dace09d86c39b2b4f056f613 (diff) | |
arm: at91: Enable watchdog support
This patch enables and starts the watchdog on the AT91 platform if
configured. The WD timeout value is read in the AT91 WD device driver
from the DT, using the "timeout-sec" DT property. If not provided in
the DT, the default value of 2 seconds is used.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Andreas Bießmann <andreas@biessmann.org>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Diffstat (limited to 'arch/arm/mach-at91/include')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/at91_wdt.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/at91_wdt.h b/arch/arm/mach-at91/include/mach/at91_wdt.h index cd2272367b..a8fc73b3d1 100644 --- a/arch/arm/mach-at91/include/mach/at91_wdt.h +++ b/arch/arm/mach-at91/include/mach/at91_wdt.h @@ -25,6 +25,12 @@ typedef struct at91_wdt { u32 sr; } at91_wdt_t; +struct at91_wdt_priv { + void __iomem *regs; + u32 regval; + u32 timeout; +}; + #endif /* Watchdog Control Register */ @@ -43,4 +49,8 @@ typedef struct at91_wdt { #define AT91_WDT_MR_WDDBGHLT 0x10000000 #define AT91_WDT_MR_WDIDLEHLT 0x20000000 +/* Hardware timeout in seconds */ +#define WDT_MAX_TIMEOUT 16 +#define WDT_DEFAULT_TIMEOUT 2 + #endif |