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Watchdog driver general info
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CONFIG_HW_WATCHDOG
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This enables hw_watchdog_reset to be called during various loops,
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including waiting for a character on a serial port. But it
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does not also call hw_watchdog_init. Boards which want this
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enabled must call this function in their board file. This split
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is useful because some rom's enable the watchdog when downloading
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new code, so it must be serviced, but the board would rather it
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was off. And, it cannot always be turned off once on.
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CONFIG_WATCHDOG_TIMEOUT_MSECS
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Can be used to change the timeout for i.mx31/35/5x/6x.
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If not given, will default to maximum timeout. This would
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be 128000 msec for i.mx31/35/5x/6x.
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CONFIG_AT91SAM9_WATCHDOG
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Available for AT91SAM9 to service the watchdog.
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CONFIG_FTWDT010_WATCHDOG
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Available for FTWDT010 to service the watchdog.
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CONFIG_FTWDT010_HW_TIMEOUT
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Can be used to change the timeout for FTWDT010.
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CONFIG_IMX_WATCHDOG
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Available for i.mx31/35/5x/6x to service the watchdog. This is not
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automatically set because some boards (vision2) still need to define
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their own hw_watchdog_reset routine.
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TODO: vision2 is removed now, so perhaps this can be changed.
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CONFIG_XILINX_TB_WATCHDOG
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Available for Xilinx Axi platforms to service timebase watchdog timer.
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