diff --git a/arch/arm/include/asm/mach-imx/mu_hal.h b/arch/arm/include/asm/mach-imx/mu_hal.h
new file mode 100644
index 0000000..5db559c
--- /dev/null
+++ b/arch/arm/include/asm/mach-imx/mu_hal.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2021 NXP
+ */
+
+#ifndef __SNT_MU_HAL_H__
+#define __SNT_MU_HAL_H__
+
+void mu_hal_init(ulong base);
+int mu_hal_sendmsg(ulong base, u32 reg_index, u32 msg);
+int mu_hal_receivemsg(ulong base, u32 reg_index, u32 *msg);
+#endif
diff --git a/arch/arm/include/asm/mach-imx/s400_api.h b/arch/arm/include/asm/mach-imx/s400_api.h
new file mode 100644
index 0000000..b3e6b3f
--- /dev/null
+++ b/arch/arm/include/asm/mach-imx/s400_api.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2021 NXP
+ */
+
+#ifndef __S400_API_H__
+#define __S400_API_H__
+
+#define AHAB_VERSION    0x6
+#define AHAB_CMD_TAG    0x17
+#define AHAB_RESP_TAG   0xe1
+
+#define AHAB_LOG_CID            0x21
+#define AHAB_AUTH_OEM_CTNR_CID  0x87
+#define AHAB_VERIFY_IMG_CID     0x88
+#define AHAB_RELEASE_CTNR_CID   0x89
+#define AHAB_WRITE_SECURE_FUSE_REQ_CID	0x91
+#define AHAB_FWD_LIFECYCLE_UP_REQ_CID   0x95
+#define AHAB_READ_FUSE_REQ_CID	0x97
+#define AHAB_GET_FW_VERSION_CID	0x9D
+#define AHAB_RELEASE_RDC_REQ_CID   0xC4
+#define AHAB_WRITE_FUSE_REQ_CID	0xD6
+#define AHAB_CAAM_RELEASE_CID 0xD7
+
+#define S400_MAX_MSG          255U
+
+struct imx8ulp_s400_msg {
+	u8 version;
+	u8 size;
+	u8 command;
+	u8 tag;
+	u32 data[(S400_MAX_MSG - 1U)];
+};
+
+int ahab_release_rdc(u8 core_id, bool xrdc, u32 *response);
+int ahab_auth_oem_ctnr(ulong ctnr_addr, u32 *response);
+int ahab_release_container(u32 *response);
+int ahab_verify_image(u32 img_id, u32 *response);
+int ahab_forward_lifecycle(u16 life_cycle, u32 *response);
+int ahab_write_fuse(u16 fuse_id, u32 fuse_val, bool lock, u32 *response);
+int ahab_read_common_fuse(u16 fuse_id, u32 *fuse_words, u32 fuse_num, u32 *response);
+int ahab_release_caam(u32 core_did, u32 *response);
+int ahab_get_fw_version(u32 *fw_version, u32 *sha1, u32 *response);
+int ahab_dump_buffer(u32 *buffer, u32 buffer_length);
+
+#endif