drivers: pm: sam: specify suspend/resume hint based on suspend level

The regulators that are used with the sama5d2 platforms can enter
different levels of low power mode. In order to be able to act

drivers: pm: sam: specify suspend/resume hint based on suspend level

The regulators that are used with the sama5d2 platforms can enter
different levels of low power mode. In order to be able to act
accordingly, pass this information through suspend/resume hint.

Signed-off-by: Thomas Perrot <thomas.perrot@bootlin.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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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: update the count of PCK clock for sama7g5

Add definition "AT91_PMC_PCK_COUNT", in sama7g5 there're 8 PCK clocks
and for sama5d2 there're 4 PCK clocks.

Signed-off-by: Tony Han <ton

drivers: pm: sam: update the count of PCK clock for sama7g5

Add definition "AT91_PMC_PCK_COUNT", in sama7g5 there're 8 PCK clocks
and for sama5d2 there're 4 PCK 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: configure the wakeup sources for sama7g5

Rename the names of functions for adding the configuration of sama7g5
wakeup sources.
Add and configure the wakeup sources for sama7g5.

Si

drivers: pm: sam: configure the wakeup sources for sama7g5

Rename the names of functions for adding the configuration of sama7g5
wakeup sources.
Add and configure the wakeup sources for sama7g5.

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

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drivers: pm: sam: change memory area type to coherent for mapping SRAM

Mapping with memory area type MEM_AREA_TEE_RAM would enable cacheable
attribute, it might cause abort in same cases. Here chang

drivers: pm: sam: change memory area type to coherent for mapping SRAM

Mapping with memory area type MEM_AREA_TEE_RAM would enable cacheable
attribute, it might cause abort in same cases. Here change the memory
area type to MEM_AREA_TEE_COHERENT to map SRAM with non-cacheable
attribute to avoid the aborts in the low-power process.

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

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drivers: pm: sam: enable running code for low-power out of SRAM

Configure regions with write permission with not forced to
XN (Execute-never) attribute when implementation includes
the Virtualizatio

drivers: pm: sam: enable running code for low-power out of SRAM

Configure regions with write permission with not forced to
XN (Execute-never) attribute when implementation includes
the Virtualization Extensions.

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

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drivers: pm: sam: map SFRBU with DT_MAP_SECURE attribute for sama7g5

As sama7g5's SFRBU is always secured map it as secured and do not
need to configure the security through the matrix.

Signed-off-

drivers: pm: sam: map SFRBU with DT_MAP_SECURE attribute for sama7g5

As sama7g5's SFRBU is always secured map it as secured and do not
need to configure the security through the matrix.

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

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drivers: pm: sam: rename pm_init functions for later sama7g5 support

PM support for sama7g5 will reuse some existing functions.
Rename sama5d2_pm_init() to sam_pm_init().
Rename sama5d2_pm_init_all(

drivers: pm: sam: rename pm_init functions for later sama7g5 support

PM support for sama7g5 will reuse some existing functions.
Rename sama5d2_pm_init() to sam_pm_init().
Rename sama5d2_pm_init_all() to sam_pm_init_all().

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

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drivers: pm: imx: remove useless header includes

Remove useless header includes in psci.c

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

drivers: pm: imx: relocate power management code

Relocate power management functions from plat-imx/pm to
core/drivers/pm/imx

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wikl

drivers: pm: imx: relocate power management code

Relocate power management functions from plat-imx/pm to
core/drivers/pm/imx

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

Signed-off-by: Gatien Cheval

core: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt: Make it possible to alter device mapping

In case where IP core device is TrustZone aware and is used by both REE
and TEE dt_map_dev() would normally cause non-secure mapping for the
device

core: dt: Make it possible to alter device mapping

In case where IP core device is TrustZone aware and is used by both REE
and TEE dt_map_dev() would normally cause non-secure mapping for the
device.

When selected registers in IP core are only accessible by TrustZone device
needs to be mapped with MEM_AREA_IO_SEC to cause actual AXI memory access
be made with AWPROT[1] and ARPROT[1] bits configured properly.

This adds new argument for dt_map_dev() to enable forcing mapping to be
secure or non-secure.

Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@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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plat-sam: pm: add support for setting suspend mode

PSCI allows entering platform suspend with SYSTEM_SUSPEND call which
is meant to enter the system in its deepest power state. sama5d2
platform supp

plat-sam: pm: add support for setting suspend mode

PSCI allows entering platform suspend with SYSTEM_SUSPEND call which
is meant to enter the system in its deepest power state. sama5d2
platform supports multiple suspend power states. Currently, Linux
supports the atmel.pm_modes command line option which allows to select
this suspend state. Since Linux uses PSCI SYSTEM_SUSPEND to enter
suspend mode, we are not able to pass information (such as done for
CPU_SUSPEND). In order to select the mode that will be entered by
SYSTEM_SUSPEND from normal world and thus select the desired suspend state,
SMCs are added to allow selecting and getting this power mode.

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