drivers: atmel_shdwc: enable RTT (Real-time Timer) Wake-up

For sama7g5 the Wake-up can be caused by RTT.

Signed-off-by: Tony Han <tony.han@microchip.com>
Acked-by: Jens Wiklander <jens.wiklander@li

drivers: atmel_shdwc: enable RTT (Real-time Timer) Wake-up

For sama7g5 the Wake-up can be caused by RTT.

Signed-off-by: Tony Han <tony.han@microchip.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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drivers: atmel-shdwc: add atmel shdwc driver

Add atmel shdwc driver for sama5d2. This driver uses assembly code
which expects to run from a single cache line. For the time being,
building this code

drivers: atmel-shdwc: add atmel shdwc driver

Add atmel shdwc driver for sama5d2. This driver uses assembly code
which expects to run from a single cache line. For the time being,
building this code is restricted to single core system since it rely
on the fact that no other cores can invalidate the TLB or the
I-cache. This driver will be used by PSCI to shutdown the SoC.

Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>

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