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xilinx: versal: Implement power down/restart related EEMI API 

Add power down/restart related below API
 - Force power down
 - System shutdown

Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: Icd4a922923b1fd50eca1f5361f1e604aedcdb529
This commit is contained in:
Tejas Patel 2019-01-10 03:03:47 -08:00 committed by Jolly Shah
parent ab43d15b91
commit ffecfe79fb
4 changed files with 52 additions and 0 deletions
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40
plat/xilinx/versal/pm_service/pm_api_sys.c
View File

@ -572,3 +572,43 @@ enum pm_ret_status pm_pll_get_mode(uint32_t clk_id, uint32_t *mode)
return pm_ipi_send_sync(primary_proc, payload, mode, 1);
}
/**
* pm_force_powerdown() - PM call to request for another PU or subsystem to
* be powered down forcefully
* @target Device ID of the PU node to be forced powered down.
* @ack Flag to specify whether acknowledge is requested
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_force_powerdown(uint32_t target, uint8_t ack)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_FORCE_POWERDOWN, target,
ack);
if (ack == IPI_BLOCKING)
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
else
return pm_ipi_send(primary_proc, payload);
}
/**
* pm_system_shutdown() - PM call to request a system shutdown or restart
* @type Shutdown or restart? 0=shutdown, 1=restart
* @subtype Scope: 0=APU-subsystem, 1=PS, 2=system
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_system_shutdown(uint32_t type, uint32_t subtype)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_SYSTEM_SHUTDOWN, type,
subtype);
return pm_ipi_send_non_blocking(primary_proc, payload);
}

2
plat/xilinx/versal/pm_service/pm_api_sys.h
View File

@ -53,5 +53,7 @@ enum pm_ret_status pm_pll_get_param(uint32_t clk_id, uint32_t param,
uint32_t *value);
enum pm_ret_status pm_pll_set_mode(uint32_t clk_id, uint32_t mode);
enum pm_ret_status pm_pll_get_mode(uint32_t clk_id, uint32_t *mode);
enum pm_ret_status pm_force_powerdown(uint32_t target, uint8_t ack);
enum pm_ret_status pm_system_shutdown(uint32_t type, uint32_t subtype);
#endif /* PM_API_SYS_H */

2
plat/xilinx/versal/pm_service/pm_defs.h
View File

@ -27,7 +27,9 @@
#define PM_GET_DEVICE_STATUS 3U
#define PM_REQ_SUSPEND 6U
#define PM_SELF_SUSPEND 7U
#define PM_FORCE_POWERDOWN 8U
#define PM_ABORT_SUSPEND 9U
#define PM_SYSTEM_SHUTDOWN 12U
#define PM_REQUEST_DEVICE 13U
#define PM_RELEASE_DEVICE 14U
#define PM_SET_REQUIREMENT 15U

8
plat/xilinx/versal/pm_service/pm_svc_main.c
View File

@ -88,6 +88,10 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
pm_arg[3]);
SMC_RET1(handle, (uint64_t)ret);
case PM_FORCE_POWERDOWN:
ret = pm_force_powerdown(pm_arg[0], pm_arg[1]);
SMC_RET1(handle, (uint64_t)ret);
case PM_REQ_SUSPEND:
ret = pm_req_suspend(pm_arg[0], pm_arg[1], pm_arg[2],
pm_arg[3]);
@ -97,6 +101,10 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
ret = pm_abort_suspend(pm_arg[0]);
SMC_RET1(handle, (uint64_t)ret);
case PM_SYSTEM_SHUTDOWN:
ret = pm_system_shutdown(pm_arg[0], pm_arg[1]);
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]);