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drivers: watchdog: Adding watchdog support for sam SOC

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Adding watchdog driver for sam SoC. The current implemntation just
diables the watchdog on device boot.
This PR adds the following support for SAM3X, SAM4S and SAME70
1. Activate processor reset
2. Activate all reset
3. Generate interrupt on watchdog timer expiration.

Signed-off-by: Subramanian Meenakshi Sundaram <subbu147@gmail.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Subramanian Meenakshi Sundaram 2018-10-24 22:16:25 -07:00 • committed by Maureen Helm
commit 4e1179bba5
16 changed files with 294 additions and 29 deletions
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4
soc/arm/atmel_sam/sam4s/dts_fixup.h
View file

@ -50,4 +50,8 @@
#define CONFIG_USART_SAM_PORT_1_NAME ATMEL_SAM_USART_40028000_LABEL
#define CONFIG_USART_SAM_PORT_1_BAUD_RATE ATMEL_SAM_USART_40028000_CURRENT_SPEED
#define CONFIG_WDT_SAM_IRQ ATMEL_SAM_WATCHDOG_400E1450_IRQ_0
#define CONFIG_WDT_SAM_IRQ_PRIORITY ATMEL_SAM_WATCHDOG_400E1450_IRQ_0_PRIORITY
#define CONFIG_WDT_SAM_LABEL ATMEL_SAM_WATCHDOG_400E1450_LABEL
#define CONFIG_WDT_SAM_BASE_ADDRESS ATMEL_SAM_WATCHDOG_400E1450_BASE_ADDRESS
/* End of SoC Level DTS fixup file */