zynqmp: pm: Implement PM_INIT_FINALIZE PM API call
The PM_INIT_FINALIZE PM API is required to inform the PFW that APU is
done with requesting nodes and that not-requested nodes can be powered
down. If PM is not enabled, this call will never be made and PFW will
never power down any of the nodes which APU can use.
Signed-off-by: Filip Drazic <filip.drazic@aggios.com>
diff --git a/plat/xilinx/zynqmp/pm_service/pm_api_sys.c b/plat/xilinx/zynqmp/pm_service/pm_api_sys.c
index e84c454..d746c28 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_api_sys.c
+++ b/plat/xilinx/zynqmp/pm_service/pm_api_sys.c
@@ -339,6 +339,22 @@
}
/**
+ * pm_init_finalize() - Call to notify PMU firmware that master has power
+ * management enabled and that it has finished its
+ * initialization
+ *
+ * @return Status returned by the PMU firmware
+ */
+enum pm_ret_status pm_init_finalize(void)
+{
+ uint32_t payload[PAYLOAD_ARG_CNT];
+
+ /* Send request to the PMU */
+ PM_PACK_PAYLOAD1(payload, PM_INIT_FINALIZE);
+ return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
+}
+
+/**
* pm_get_node_status() - PM call to request a node's current status
* @nid Node id
* @ret_buff Buffer for the return values: