diff --git a/arch/arm/include/asm/mach-imx/s400_api.h b/arch/arm/include/asm/mach-imx/s400_api.h
index dc176e1..89fa373 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 cc47079..e24eeff 100644
--- a/arch/arm/mach-imx/imx8ulp/rdc.c
+++ b/arch/arm/mach-imx/imx8ulp/rdc.c
@@ -184,7 +184,7 @@
 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 b088169..3f37ce7 100644
--- a/arch/arm/mach-imx/imx9/trdc.c
+++ b/arch/arm/mach-imx/imx9/trdc.c
@@ -315,7 +315,7 @@
 int release_rdc(u8 xrdc)
 {
 	ulong s_mu_base = 0x47520000UL;
-	struct imx8ulp_s400_msg msg;
+	struct sentinel_msg msg;
 	int ret;
 	u32 rdc_id;