diff --git a/plat/imx/imx8ulp/upower/upower_hal.c b/plat/imx/imx8ulp/upower/upower_hal.c
new file mode 100644
index 0000000..45b59c2
--- /dev/null
+++ b/plat/imx/imx8ulp/upower/upower_hal.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2020-2024 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/mmio.h>
+
+#include "upower_api.h"
+#include "upower_defs.h"
+
+#define UPOWER_AP_MU1_ADDR	U(0x29280000)
+
+struct MU_t *muptr = (struct MU_t *)UPOWER_AP_MU1_ADDR;
+
+void upower_apd_inst_isr(upwr_isr_callb txrx_isr,
+			 upwr_isr_callb excp_isr)
+{
+	/* Do nothing */
+}
+
+int upower_status(int status)
+{
+	int ret = -1;
+
+	switch (status) {
+	case 0:
+		VERBOSE("finished successfully!\n");
+		ret = 0;
+		break;
+	case -1:
+		VERBOSE("memory allocation or resource failed!\n");
+		break;
+	case -2:
+		VERBOSE("invalid argument!\n");
+		break;
+	case -3:
+		VERBOSE("called in an invalid API state!\n");
+		break;
+	default:
+		VERBOSE("invalid return status\n");
+		break;
+	}
+
+	return ret;
+}
+
+
+void upower_wait_resp(void)
+{
+	while (muptr->RSR.B.RF0 == 0) {
+		udelay(100);
+	}
+	upwr_txrx_isr();
+}
+
+static void user_upwr_rdy_callb(uint32_t soc, uint32_t vmajor, uint32_t vminor)
+{
+	NOTICE("%s: soc=%x\n", __func__, soc);
+	NOTICE("%s: RAM version:%d.%d\n", __func__, vmajor, vminor);
+}
+
+int upower_init(void)
+{
+	int status;
+
+	status = upwr_init(APD_DOMAIN, muptr, NULL, NULL, upower_apd_inst_isr, NULL);
+	if (upower_status(status)) {
+		ERROR("%s: upower init failure\n", __func__);
+		return -EINVAL;
+	}
+
+	NOTICE("%s: start uPower RAM service\n", __func__);
+	status = upwr_start(1, user_upwr_rdy_callb);
+	upower_wait_resp();
+	/* poll status */
+	if (upower_status(status)) {
+		NOTICE("%s: upower init failure\n", __func__);
+		return status;
+	}
+
+	return 0;
+}
+
+int upower_pwm(int domain_id, bool pwr_on)
+{
+	int ret, ret_val;
+	uint32_t swt;
+
+	if (domain_id == 9U || domain_id == 11U || domain_id == 12U) {
+		swt = BIT_32(12) | BIT_32(11) | BIT_32(10) | BIT_32(9);
+	} else {
+		swt = BIT_32(domain_id);
+	}
+
+	if (pwr_on) {
+		ret = upwr_pwm_power_on(&swt, NULL, NULL);
+	} else {
+		ret = upwr_pwm_power_off(&swt, NULL, NULL);
+	}
+
+	if (ret) {
+		NOTICE("%s failed: ret: %d, pwr_on: %d\n", __func__, ret, pwr_on);
+		return ret;
+	}
+	upower_wait_resp();
+
+	ret = upwr_poll_req_status(UPWR_SG_PWRMGMT, NULL, NULL, &ret_val, 1000);
+	if (ret != UPWR_REQ_OK) {
+		NOTICE("Failure %d, %s\n", ret, __func__);
+		if (ret == UPWR_REQ_BUSY) {
+			return -EBUSY;
+		} else {
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+int upower_read_temperature(uint32_t sensor_id, int32_t *temperature)
+{
+	int ret, ret_val;
+	upwr_resp_t err_code;
+	int64_t t;
+
+	ret = upwr_tpm_get_temperature(sensor_id, NULL);
+	if (ret) {
+		return ret;
+	}
+
+	upower_wait_resp();
+	ret = upwr_poll_req_status(UPWR_SG_TEMPM, NULL, &err_code, &ret_val, 1000);
+	if (ret > UPWR_REQ_OK) {
+		return ret;
+	}
+
+	t = ret_val & 0xff;
+	*temperature = (2673049 * t * t * t / 10000000 + 3734262 * t * t / 100000 +
+			4487042 * t / 100 - 4698694) / 100000;
+
+	return 0;
+}