diff --git a/arch/arm/include/asm/mach-imx/s400_api.h b/arch/arm/include/asm/mach-imx/s400_api.h
index dc176e1f619..89fa373d06f 100644
--- a/arch/arm/include/asm/mach-imx/s400_api.h
+++ b/arch/arm/include/asm/mach-imx/s400_api.h
@@ -26,7 +26,7 @@
 
 #define S400_MAX_MSG          255U
 
-struct imx8ulp_s400_msg {
+struct sentinel_msg {
 	u8 version;
 	u8 size;
 	u8 command;
diff --git a/arch/arm/mach-imx/imx8ulp/rdc.c b/arch/arm/mach-imx/imx8ulp/rdc.c
index cc47079d8f5..e24eeff8a20 100644
--- a/arch/arm/mach-imx/imx8ulp/rdc.c
+++ b/arch/arm/mach-imx/imx8ulp/rdc.c
@@ -184,7 +184,7 @@ int xrdc_config_pdac(u32 bridge, u32 index, u32 dom, u32 perm)
 int release_rdc(enum rdc_type type)
 {
 	ulong s_mu_base = 0x27020000UL;
-	struct imx8ulp_s400_msg msg;
+	struct sentinel_msg msg;
 	int ret;
 	u32 rdc_id = (type == RDC_XRDC) ? 0x78 : 0x74;
 
diff --git a/arch/arm/mach-imx/imx9/trdc.c b/arch/arm/mach-imx/imx9/trdc.c
index b0881697a10..3f37ce712c0 100644
--- a/arch/arm/mach-imx/imx9/trdc.c
+++ b/arch/arm/mach-imx/imx9/trdc.c
@@ -315,7 +315,7 @@ bool trdc_mbc_enabled(ulong trdc_base)
 int release_rdc(u8 xrdc)
 {
 	ulong s_mu_base = 0x47520000UL;
-	struct imx8ulp_s400_msg msg;
+	struct sentinel_msg msg;
 	int ret;
 	u32 rdc_id;
 
diff --git a/drivers/misc/sentinel/s400_api.c b/drivers/misc/sentinel/s400_api.c
index 01a673e5e13..65032f77362 100644
--- a/drivers/misc/sentinel/s400_api.c
+++ b/drivers/misc/sentinel/s400_api.c
@@ -17,8 +17,8 @@ DECLARE_GLOBAL_DATA_PTR;
 int ahab_release_rdc(u8 core_id, u8 xrdc, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -62,8 +62,8 @@ int ahab_release_rdc(u8 core_id, u8 xrdc, u32 *response)
 int ahab_auth_oem_ctnr(ulong ctnr_addr, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -92,8 +92,8 @@ int ahab_auth_oem_ctnr(ulong ctnr_addr, u32 *response)
 int ahab_release_container(u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -120,8 +120,8 @@ int ahab_release_container(u32 *response)
 int ahab_verify_image(u32 img_id, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -149,8 +149,8 @@ int ahab_verify_image(u32 img_id, u32 *response)
 int ahab_forward_lifecycle(u16 life_cycle, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -178,8 +178,8 @@ int ahab_forward_lifecycle(u16 life_cycle, u32 *response)
 int ahab_read_common_fuse(u16 fuse_id, u32 *fuse_words, u32 fuse_num, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -226,8 +226,8 @@ int ahab_read_common_fuse(u16 fuse_id, u32 *fuse_words, u32 fuse_num, u32 *respo
 int ahab_write_fuse(u16 fuse_id, u32 fuse_val, bool lock, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -259,8 +259,8 @@ int ahab_write_fuse(u16 fuse_id, u32 fuse_val, bool lock, u32 *response)
 int ahab_release_caam(u32 core_did, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -329,8 +329,8 @@ int ahab_get_fw_version(u32 *fw_version, u32 *sha1, u32 *response)
 int ahab_dump_buffer(u32 *buffer, u32 buffer_length)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret, i = 0;
 
 	if (!dev) {
@@ -363,8 +363,8 @@ int ahab_dump_buffer(u32 *buffer, u32 buffer_length)
 int ahab_get_info(struct sentinel_get_info_data *info, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
@@ -394,8 +394,8 @@ int ahab_get_info(struct sentinel_get_info_data *info, u32 *response)
 int ahab_get_fw_status(u32 *status, u32 *response)
 {
 	struct udevice *dev = gd->arch.s400_dev;
-	int size = sizeof(struct imx8ulp_s400_msg);
-	struct imx8ulp_s400_msg msg;
+	int size = sizeof(struct sentinel_msg);
+	struct sentinel_msg msg;
 	int ret;
 
 	if (!dev) {
diff --git a/drivers/misc/sentinel/s4mu.c b/drivers/misc/sentinel/s4mu.c
index 6f0221ac23c..d37c6796885 100644
--- a/drivers/misc/sentinel/s4mu.c
+++ b/drivers/misc/sentinel/s4mu.c
@@ -110,7 +110,7 @@ int mu_hal_receivemsg(ulong base, u32 reg_index, u32 *msg)
 
 static int imx8ulp_mu_read(struct mu_type *base, void *data)
 {
-	struct imx8ulp_s400_msg *msg = (struct imx8ulp_s400_msg *)data;
+	struct sentinel_msg *msg = (struct sentinel_msg *)data;
 	int ret;
 	u8 count = 0;
 
@@ -143,7 +143,7 @@ static int imx8ulp_mu_read(struct mu_type *base, void *data)
 
 static int imx8ulp_mu_write(struct mu_type *base, void *data)
 {
-	struct imx8ulp_s400_msg *msg = (struct imx8ulp_s400_msg *)data;
+	struct sentinel_msg *msg = (struct sentinel_msg *)data;
 	int ret;
 	u8 count = 0;
 
@@ -196,7 +196,7 @@ static int imx8ulp_mu_call(struct udevice *dev, int no_resp, void *tx_msg,
 			return ret;
 	}
 
-	result = ((struct imx8ulp_s400_msg *)rx_msg)->data[0];
+	result = ((struct sentinel_msg *)rx_msg)->data[0];
 	if ((result & 0xff) == 0xd6)
 		return 0;
 
