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* soc: ti: wkup_m3_ipc: Add wkup_m3_request_wake_srcDave Gerlach2018-07-041-0/+6
| | | | | | | | | Add wkup_m3_request_wake_src to allow users to get the name of the wakeup source after a DeepSleep or Standby transition. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* soc: ti: wkup_m3_ipc: Add rtc_only with ddr in self refresh mode supportKeerthy2018-07-041-0/+3
| | | | | | | | Adds rtc_only support. This needs resume function to shutdown and reboot the m3. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* soc: ti: Add wkup_m3_ipc driverDave Gerlach2015-12-031-0/+55
Introduce a wkup_m3_ipc driver to handle communication between the MPU and Cortex M3 wkup_m3 present on am335x. This driver is responsible for actually booting the wkup_m3_rproc and also handling all IPC which is done using the IPC registers in the control module, a mailbox, and a separate interrupt back from the wkup_m3. A small API is exposed for executing specific power commands, which include configuring for low power mode, request a transition to a low power mode, and status info on a previous transition. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>