diff --git a/plat/xilinx/zynqmp/pm_service/zynqmp_pm_api_sys.h b/plat/xilinx/zynqmp/pm_service/zynqmp_pm_api_sys.h
new file mode 100644
index 0000000..7d26554
--- /dev/null
+++ b/plat/xilinx/zynqmp/pm_service/zynqmp_pm_api_sys.h
@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2023, Advanced Micro Devices Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ZYNQMP_PM_API_SYS_H
+#define ZYNQMP_PM_API_SYS_H
+
+#include <stdint.h>
+
+#include "pm_defs.h"
+
+enum pm_query_id {
+	PM_QID_INVALID,
+	PM_QID_CLOCK_GET_NAME,
+	PM_QID_CLOCK_GET_TOPOLOGY,
+	PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS,
+	PM_QID_CLOCK_GET_PARENTS,
+	PM_QID_CLOCK_GET_ATTRIBUTES,
+	PM_QID_PINCTRL_GET_NUM_PINS,
+	PM_QID_PINCTRL_GET_NUM_FUNCTIONS,
+	PM_QID_PINCTRL_GET_NUM_FUNCTION_GROUPS,
+	PM_QID_PINCTRL_GET_FUNCTION_NAME,
+	PM_QID_PINCTRL_GET_FUNCTION_GROUPS,
+	PM_QID_PINCTRL_GET_PIN_GROUPS,
+	PM_QID_CLOCK_GET_NUM_CLOCKS,
+	PM_QID_CLOCK_GET_MAX_DIVISOR,
+};
+
+enum pm_register_access_id {
+	CONFIG_REG_WRITE,
+	CONFIG_REG_READ,
+};
+
+/**
+ * Assigning of argument values into array elements.
+ */
+#define PM_PACK_PAYLOAD1(pl, arg0) {	\
+	pl[0] = (uint32_t)(arg0);	\
+}
+
+#define PM_PACK_PAYLOAD2(pl, arg0, arg1) {	\
+	pl[1] = (uint32_t)(arg1);		\
+	PM_PACK_PAYLOAD1(pl, arg0);		\
+}
+
+#define PM_PACK_PAYLOAD3(pl, arg0, arg1, arg2) {	\
+	pl[2] = (uint32_t)(arg2);			\
+	PM_PACK_PAYLOAD2(pl, arg0, arg1);		\
+}
+
+#define PM_PACK_PAYLOAD4(pl, arg0, arg1, arg2, arg3) {	\
+	pl[3] = (uint32_t)(arg3);			\
+	PM_PACK_PAYLOAD3(pl, arg0, arg1, arg2);		\
+}
+
+#define PM_PACK_PAYLOAD5(pl, arg0, arg1, arg2, arg3, arg4) {	\
+	pl[4] = (uint32_t)(arg4);				\
+	PM_PACK_PAYLOAD4(pl, arg0, arg1, arg2, arg3);		\
+}
+
+#define PM_PACK_PAYLOAD6(pl, arg0, arg1, arg2, arg3, arg4, arg5) {	\
+	pl[5] = (uint32_t)(arg5);					\
+	PM_PACK_PAYLOAD5(pl, arg0, arg1, arg2, arg3, arg4);		\
+}
+
+/**********************************************************
+ * System-level API function declarations
+ **********************************************************/
+enum pm_ret_status pm_req_suspend(enum pm_node_id target,
+				  enum pm_request_ack ack,
+				  uint32_t latency,
+				  uint32_t state);
+
+enum pm_ret_status pm_self_suspend(enum pm_node_id nid,
+				   uint32_t latency,
+				   uint32_t state,
+				   uintptr_t address);
+
+enum pm_ret_status pm_force_powerdown(enum pm_node_id target,
+				      enum pm_request_ack ack);
+
+enum pm_ret_status pm_abort_suspend(enum pm_abort_reason reason);
+
+enum pm_ret_status pm_req_wakeup(enum pm_node_id target,
+				 uint32_t set_address,
+				 uintptr_t address,
+				 enum pm_request_ack ack);
+
+enum pm_ret_status pm_set_wakeup_source(enum pm_node_id target,
+					enum pm_node_id wkup_node,
+					uint32_t enable);
+
+enum pm_ret_status pm_system_shutdown(uint32_t type, uint32_t subtype);
+
+/* API functions for managing PM Slaves */
+enum pm_ret_status pm_req_node(enum pm_node_id nid,
+			       uint32_t capabilities,
+			       uint32_t qos,
+			       enum pm_request_ack ack);
+
+enum pm_ret_status pm_set_requirement(enum pm_node_id nid,
+				      uint32_t capabilities,
+				      uint32_t qos,
+				      enum pm_request_ack ack);
+
+/* Miscellaneous API functions */
+enum pm_ret_status pm_get_api_version(uint32_t *version);
+enum pm_ret_status pm_get_node_status(enum pm_node_id nid,
+				      uint32_t *ret_buff);
+
+/* Direct-Control API functions */
+enum pm_ret_status pm_mmio_write(uintptr_t address,
+				 uint32_t mask,
+				 uint32_t value);
+enum pm_ret_status pm_mmio_read(uintptr_t address, uint32_t *value);
+enum pm_ret_status pm_fpga_load(uint32_t address_low,
+				uint32_t address_high,
+				uint32_t size,
+				uint32_t flags);
+enum pm_ret_status pm_fpga_get_status(uint32_t *value);
+
+enum pm_ret_status pm_get_chipid(uint32_t *value);
+enum pm_ret_status pm_secure_rsaaes(uint32_t address_low,
+				    uint32_t address_high,
+				    uint32_t size,
+				    uint32_t flags);
+uint32_t pm_get_shutdown_scope(void);
+enum pm_ret_status pm_get_callbackdata(uint32_t *data, size_t count);
+enum pm_ret_status pm_ioctl(enum pm_node_id nid,
+			    uint32_t ioctl_id,
+			    uint32_t arg1,
+			    uint32_t arg2,
+			    uint32_t *value);
+enum pm_ret_status pm_clock_enable(uint32_t clock_id);
+enum pm_ret_status pm_clock_disable(uint32_t clock_id);
+enum pm_ret_status pm_clock_getstate(uint32_t clock_id,
+				     uint32_t *state);
+enum pm_ret_status pm_clock_setdivider(uint32_t clock_id,
+				       uint32_t divider);
+enum pm_ret_status pm_clock_getdivider(uint32_t clock_id,
+				       uint32_t *divider);
+enum pm_ret_status pm_clock_setrate(uint32_t clock_id,
+				    uint64_t rate);
+enum pm_ret_status pm_clock_getrate(uint32_t clock_id,
+				    uint64_t *rate);
+enum pm_ret_status pm_clock_setparent(uint32_t clock_id,
+				      uint32_t parent_index);
+enum pm_ret_status pm_clock_getparent(uint32_t clock_id,
+				      uint32_t *parent_index);
+void pm_query_data(enum pm_query_id qid, uint32_t arg1, uint32_t arg2,
+		   uint32_t arg3, uint32_t *data);
+enum pm_ret_status pm_sha_hash(uint32_t address_high,
+				    uint32_t address_low,
+				    uint32_t size,
+				    uint32_t flags);
+enum pm_ret_status pm_rsa_core(uint32_t address_high,
+				    uint32_t address_low,
+				    uint32_t size,
+				    uint32_t flags);
+enum pm_ret_status pm_secure_image(uint32_t address_low,
+				   uint32_t address_high,
+				   uint32_t key_lo,
+				   uint32_t key_hi,
+				   uint32_t *value);
+enum pm_ret_status pm_fpga_read(uint32_t reg_numframes,
+				uint32_t address_low,
+				uint32_t address_high,
+				uint32_t readback_type,
+				uint32_t *value);
+enum pm_ret_status pm_aes_engine(uint32_t address_high,
+				 uint32_t address_low,
+				 uint32_t  *value);
+enum pm_ret_status pm_register_access(uint32_t register_access_id,
+				      uint32_t address,
+				      uint32_t mask,
+				      uint32_t value,
+				      uint32_t *out);
+enum pm_ret_status pm_pll_set_parameter(enum pm_node_id nid,
+					enum pm_pll_param param_id,
+					uint32_t value);
+enum pm_ret_status pm_pll_get_parameter(enum pm_node_id nid,
+					enum pm_pll_param param_id,
+					uint32_t *value);
+enum pm_ret_status pm_pll_set_mode(enum pm_node_id nid, enum pm_pll_mode mode);
+enum pm_ret_status pm_pll_get_mode(enum pm_node_id nid, enum pm_pll_mode *mode);
+enum pm_ret_status pm_efuse_access(uint32_t address_high,
+				   uint32_t address_low, uint32_t *value);
+enum pm_ret_status pm_feature_check(uint32_t api_id, uint32_t *version,
+				    uint32_t *bit_mask, uint8_t len);
+enum pm_ret_status check_api_dependency(uint8_t id);
+
+#endif /* ZYNQMP_PM_API_SYS_H */