drivers: pm: sam: improve the access of variables in "at91_pm_data"

Flush the TLB before accessing variables in "at91_pm_data".
Preload the variables before using.

Signed-off-by: Tony Han <tony.han

drivers: pm: sam: improve the access of variables in "at91_pm_data"

Flush the TLB before accessing variables in "at91_pm_data".
Preload the variables before using.

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

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drivers: pm: sam: add code for enable/disable sama7g5 DRAM self-refresh mode

Add the header file "sama7-ddr.h" for sama7g5 DRAM controller.
Add 2 macros for enable and disable sama7g5 DRAM self-refr

drivers: pm: sam: add code for enable/disable sama7g5 DRAM self-refresh mode

Add the header file "sama7-ddr.h" for sama7g5 DRAM controller.
Add 2 macros for enable and disable sama7g5 DRAM self-refresh mode.
Enable self-refresh mode before entering the low-power modes and
disable it after exiting the low-power modes.

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

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drivers: pm: sam: add code for the phy of sama7g5 dram controller

Add and initilate the variable for the start address of sama7g5
dram controller phy.

Signed-off-by: Tony Han <tony.han@microchip.co

drivers: pm: sam: add code for the phy of sama7g5 dram controller

Add and initilate the variable for the start address of sama7g5
dram controller phy.

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

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drivers: pm: sam: add code for sama7g5 LPM (Low-power Mode) pad

Set LPM pad high/low through SHDW_CR register.

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

drivers: pm: sam: add code for sama7g5 LPM (Low-power Mode) pad

Set LPM pad high/low through SHDW_CR register.

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

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drivers: pm: sam: add code for save/restore sama7g5 MCK1..4 settings

Add 2 macros for save and restore sama7g5 MCK1..4 settings.
Save MCK1..4 settings before entering the low-power modes and restore

drivers: pm: sam: add code for save/restore sama7g5 MCK1..4 settings

Add 2 macros for save and restore sama7g5 MCK1..4 settings.
Save MCK1..4 settings before entering the low-power modes and restore
the settings after exiting the low-power modes.
During the low-power mode MCK1..4 use CSS=MAINCK and DIV=1.

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

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drivers: pm: sam: add support for checking sama7g5 MCK1..4 ready

sama5d2 has only MCK0 clock.
sama7g5 has MCK0,1,..., MCK4 clocks.

Signed-off-by: Tony Han <tony.han@microchip.com>
Acked-by: Jens Wi

drivers: pm: sam: add support for checking sama7g5 MCK1..4 ready

sama5d2 has only MCK0 clock.
sama7g5 has MCK0,1,..., MCK4 clocks.

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

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drivers: pm: sam: update PLLA enable/disable macros for sama7g5

Update macro "at91_plla_disable" and "at91_plla_enable" for sama7g5 PLLA.

Signed-off-by: Tony Han <tony.han@microchip.com>
Acked-by:

drivers: pm: sam: update PLLA enable/disable macros for sama7g5

Update macro "at91_plla_disable" and "at91_plla_enable" for sama7g5 PLLA.

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

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drivers: pm: sam: clarify that the pm_suspend.S file was relicensed

Clarify that this file was imported from Linux and relicensed to avoid
any licensing issue.

Acked-by: Nicolas Ferre <nicolas.ferr

drivers: pm: sam: clarify that the pm_suspend.S file was relicensed

Clarify that this file was imported from Linux and relicensed to avoid
any licensing issue.

Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>

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drivers: pm: sam: add suspend support

Add suspend support for sama5d2 platform. This support allows to use
all the available modes of suspend present on the sama5d2 platform:
- STANDBY
- ULP0
- ULP0

drivers: pm: sam: add suspend support

Add suspend support for sama5d2 platform. This support allows to use
all the available modes of suspend present on the sama5d2 platform:
- STANDBY
- ULP0
- ULP0 Fast
- ULP1
- BACKUP

By default, STANDBY mode is used as default suspend mode.
This support is meant to be used by PSCI.

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

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