feat(imx8ulp): add i.MX8ULP basic support

Add the basic support for i.MX8ULP.

The i.MX 8ULP family of processors features NXP’s advanced
implementation of the dual Arm Cortex-A35 cores alongside
an Arm Cortex-M33. This combined architecture enables the
device to run a rich operating system (such as Linux) on
the Cortex-A35 core and an RTOS (such as FreeRTOS) on the
Cortex-M33 core. It also includes a Cadence Tensilica Fusion
DSP for low-power audio and a HiFi4 DSP for advanced audio
and machine learning applications.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I12df622b95960bcdf7da52e4c66470a700690e36
diff --git a/plat/imx/imx8ulp/upower/upmu.h b/plat/imx/imx8ulp/upower/upmu.h
new file mode 100644
index 0000000..ce4f47e
--- /dev/null
+++ b/plat/imx/imx8ulp/upower/upmu.h
@@ -0,0 +1,279 @@
+/*
+ * Copyright 2021-2024 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MU_H
+#define MU_H
+
+#include <stdint.h>
+
+typedef volatile unsigned int vuint32_t;
+
+/****************************************************************************/
+/*				MODULE: Message Unit			    */
+/****************************************************************************/
+/* VER Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t FEATURE : 16;
+		vuint32_t MINOR : 8;
+		vuint32_t MAJOR : 8;
+	} B;
+} MU_VER_t;
+
+/* PAR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t TR_NUM : 8;
+		vuint32_t RR_NUM : 8;
+		vuint32_t GIR_NUM : 8;
+		vuint32_t FLAG_WIDTH : 8;
+	} B;
+} MU_PAR_t;
+
+/* CR Register */
+typedef union  {
+	vuint32_t R;
+	struct {
+		vuint32_t MUR : 1;
+		vuint32_t MURIE : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_CR_t;
+
+/* SR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t MURS : 1;
+		vuint32_t MURIP : 1;
+		vuint32_t EP : 1;
+		vuint32_t FUP : 1;
+		vuint32_t GIRP : 1;
+		vuint32_t TEP : 1;
+		vuint32_t RFP : 1;
+		vuint32_t CEP : 1;
+		vuint32_t rsrv_1 : 24;
+
+	} B;
+} MU_SR_t;
+
+/* CCR0 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t NMI : 1;
+		vuint32_t HR  : 1;
+		vuint32_t HRM : 1;
+		vuint32_t CLKE : 1;
+		vuint32_t RSTH : 1;
+		vuint32_t BOOT : 2;
+		vuint32_t rsrv_1 : 25;
+
+	} B;
+} MU_CCR0_t;
+
+/* CIER0 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t rsrv_1 : 1;
+		vuint32_t HRIE : 1;
+		vuint32_t RUNIE : 1;
+		vuint32_t RAIE : 1;
+		vuint32_t HALTIE : 1;
+		vuint32_t WAITIE : 1;
+		vuint32_t STOPIE : 1;
+		vuint32_t PDIE : 1;
+		vuint32_t rsrv_2 : 24;
+	} B;
+} MU_CIER0_t;
+
+/* CSSR0 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t NMIC : 1;
+		vuint32_t HRIP : 1;
+		vuint32_t RUN  : 1;
+		vuint32_t RAIP : 1;
+		vuint32_t HALT : 1;
+		vuint32_t WAIT : 1;
+		vuint32_t STOP : 1;
+		vuint32_t PD : 1;
+		vuint32_t rsrv_1 : 24;
+	} B;
+} MU_CSSR0_t;
+
+/* CSR0 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t rsrv_1 : 1;
+		vuint32_t HRIP : 1;
+		vuint32_t RUN : 1;
+		vuint32_t RAIP : 1;
+		vuint32_t HALT : 1;
+		vuint32_t WAIT : 1;
+		vuint32_t STOP : 1;
+		vuint32_t PD : 1;
+		vuint32_t rsrv_2 : 24;
+	} B;
+} MU_CSR0_t;
+
+/* FCR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t F0 : 1;
+		vuint32_t F1 : 1;
+		vuint32_t F2 : 1;
+		vuint32_t rsrv_1 : 29;
+	} B;
+} MU_FCR_t;
+
+/* FSR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t F0 : 1;
+		vuint32_t F1 : 1;
+		vuint32_t F2 : 1;
+		vuint32_t rsrv_1 : 29;
+	} B;
+} MU_FSR_t;
+
+/* GIER Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t GIE0 : 1;
+		vuint32_t GIE1 : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_GIER_t;
+
+/* GCR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t GIR0 : 1;
+		vuint32_t GIR1 : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_GCR_t;
+
+/* GSR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t GIP0 : 1;
+		vuint32_t GIP1 : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_GSR_t;
+
+/* TCR Register */
+typedef union{
+	vuint32_t R;
+	struct {
+		vuint32_t TIE0 : 1;
+		vuint32_t TIE1 : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_TCR_t;
+
+/* TSR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t TE0 : 1;
+		vuint32_t TE1 : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_TSR_t;
+
+/* RCR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t RIE0 : 1;
+		vuint32_t RIE1 : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_RCR_t;
+
+/* RSR Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t RF0 : 1;
+		vuint32_t RF1 : 1;
+		vuint32_t rsrv_1 : 30;
+	} B;
+} MU_RSR_t;
+
+/* TR0 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t TR_DATA : 32;
+	} B;
+} MU_TR0_t;
+
+/* TR1 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t TR_DATA : 32;
+	} B;
+} MU_TR1_t;
+
+/* RR0 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t RR_DATA : 32;
+	} B;
+} MU_RR0_t;
+
+/* RR1 Register */
+typedef union {
+	vuint32_t R;
+	struct {
+		vuint32_t RR_DATA : 32;
+	} B;
+} MU_RR1_t;
+
+struct MU_t {
+	MU_VER_t VER;
+	MU_PAR_t PAR;
+	MU_CR_t CR;
+	MU_SR_t SR;
+	MU_CCR0_t CCR0;
+	MU_CIER0_t CIER0;
+	MU_CSSR0_t CSSR0;
+	MU_CSR0_t CSR0;
+	uint8_t MU_reserved0[224];
+	MU_FCR_t FCR;
+	MU_FSR_t FSR;
+	uint8_t MU_reserved1[8];
+	MU_GIER_t GIER;
+	MU_GCR_t GCR;
+	MU_GSR_t GSR;
+	uint8_t MU_reserved2[4];
+	MU_TCR_t TCR;
+	MU_TSR_t TSR;
+	MU_RCR_t RCR;
+	MU_RSR_t RSR;
+	uint8_t MU_reserved3[208];
+	MU_TR0_t TR[2];
+	uint8_t MU_reserved4[120];
+	MU_RR0_t RR[2];
+};
+
+#endif /* MU_H */