Commit c56be55d authored by Tejas Patel's avatar Tejas Patel Committed by Jolly Shah
Browse files

xilinx: versal: Add request wakeup API



Implement request wakeup API for versal.

Signed-off-by: default avatarTejas Patel <tejas.patel@xilinx.com>
Signed-off-by: default avatarJolly Shah <jolly.shah@xilinx.com>
Change-Id: I40a2a4ea85bf05623ac8a17ef4a6fa329babd27e
parent ad19911c
......@@ -159,6 +159,34 @@ enum pm_ret_status pm_req_suspend(uint32_t target, uint8_t ack,
return pm_ipi_send(primary_proc, payload);
}
/**
* pm_req_wakeup() - PM call for processor to wake up selected processor
* or subsystem
* @target Device ID of the processor or subsystem to wake up
* @set_address Resume address presence indicator
* 1 - resume address specified, 0 - otherwise
* @address Resume address
* @ack Flag to specify whether acknowledge requested
*
* This API function is either used to power up another APU core for SMP
* (by PSCI) or to power up an entirely different PU or subsystem, such
* as RPU0, RPU, or PL_CORE_xx. Resume address for the target PU will be
* automatically set by PMC.
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_req_wakeup(uint32_t target, uint32_t set_address,
uintptr_t address, uint8_t ack)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC to perform the wake of the PU */
PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_REQ_WAKEUP, target,
set_address, address, ack);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_request_device() - Request a device
* @device_id Device ID
......
......@@ -24,6 +24,8 @@ enum pm_ret_status pm_req_suspend(uint32_t target,
uint8_t ack,
unsigned int latency,
unsigned int state);
enum pm_ret_status pm_req_wakeup(uint32_t target, uint32_t set_address,
uintptr_t address, uint8_t ack);
enum pm_ret_status pm_request_device(uint32_t device_id, uint32_t capabilities,
uint32_t qos, uint32_t ack);
enum pm_ret_status pm_release_device(uint32_t device_id);
......
......@@ -29,6 +29,7 @@
#define PM_SELF_SUSPEND 7U
#define PM_FORCE_POWERDOWN 8U
#define PM_ABORT_SUSPEND 9U
#define PM_REQ_WAKEUP 10U
#define PM_SYSTEM_SHUTDOWN 12U
#define PM_REQUEST_DEVICE 13U
#define PM_RELEASE_DEVICE 14U
......
......@@ -107,6 +107,10 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
ret = pm_system_shutdown(pm_arg[0], pm_arg[1]);
SMC_RET1(handle, (uint64_t)ret);
case PM_REQ_WAKEUP:
ret = pm_req_wakeup(pm_arg[0], pm_arg[1], pm_arg[2], pm_arg[3]);
SMC_RET1(handle, (uint64_t)ret);
case PM_REQUEST_DEVICE:
ret = pm_request_device(pm_arg[0], pm_arg[1], pm_arg[2],
pm_arg[3]);
......
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