plat-sam: psci: add support for suspend and idle.

Based on the previous work to add suspend on sama5d2 platform, add
the PSCI glue to call suspend function. psci_cpu_suspend() is used to
put the pla

plat-sam: psci: add support for suspend and idle.

Based on the previous work to add suspend on sama5d2 platform, add
the PSCI glue to call suspend function. psci_cpu_suspend() is used to
put the platform in light suspend mode (STANDBY) whereas
psci_system_suspend() puts the system into the suspend mode selected by
CFG_ATMEL_PM_SUSPEND_MODE at compile time.

Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>

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plat-sam: enable PSCI shutdown support

Enable PSCI shutdown support using atmel shutdown controller driver.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.

plat-sam: enable PSCI shutdown support

Enable PSCI shutdown support using atmel shutdown controller driver.

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

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plat-sam: enable PSCI reset support

Enable PSCI reset support using atmel reset controller driver.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@

plat-sam: enable PSCI reset support

Enable PSCI reset support using atmel reset controller driver.

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

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plat-sam: enable PSCI_ARM32, ATMEL_SHDWC and ATMEL_RSTC

Enable config PSCI_ARM32, ATMEL_SHDWC and ATMEL_RSTC to implement
basic PSCI support. Force enable PSCI_ARM32 but allow other options
to be mo

plat-sam: enable PSCI_ARM32, ATMEL_SHDWC and ATMEL_RSTC

Enable config PSCI_ARM32, ATMEL_SHDWC and ATMEL_RSTC to implement
basic PSCI support. Force enable PSCI_ARM32 but allow other options
to be modified if shutdown and reset is not needed.

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

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