diff --git a/drivers/ipm/Kconfig.imx b/drivers/ipm/Kconfig.imx
index 386fe263afe..503d32b708c 100644
--- a/drivers/ipm/Kconfig.imx
+++ b/drivers/ipm/Kconfig.imx
@@ -17,8 +17,8 @@ config IPM_IMX
 
 config IPM_IMX_REV2
 	bool "IMX IPM driver (rev 2)"
-	depends on DT_HAS_NXP_IMX_MU_ENABLED
-	depends on !IPM_IMX
+	default y
+	depends on DT_HAS_NXP_IMX_MU_REV2_ENABLED
 	help
 	  Rev 2 driver for NXP i.MX messaging unit (MCUX-based)
 
diff --git a/drivers/ipm/ipm_imx.c b/drivers/ipm/ipm_imx.c
index 4c985c36152..9279d724569 100644
--- a/drivers/ipm/ipm_imx.c
+++ b/drivers/ipm/ipm_imx.c
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#define DT_DRV_COMPAT nxp_imx_mu
 
 #include <errno.h>
 #include <string.h>
@@ -13,8 +12,10 @@
 #include <zephyr/drivers/ipm.h>
 #include <zephyr/irq.h>
 #if IS_ENABLED(CONFIG_IPM_IMX_REV2)
+#define DT_DRV_COMPAT nxp_imx_mu_rev2
 #include "fsl_mu.h"
 #else
+#define DT_DRV_COMPAT nxp_imx_mu
 #include <mu_imx.h>
 #endif
 
diff --git a/dts/arm/nxp/nxp_rt11xx_cm4.dtsi b/dts/arm/nxp/nxp_rt11xx_cm4.dtsi
index edc37cdaf5b..9e96c59c08c 100644
--- a/dts/arm/nxp/nxp_rt11xx_cm4.dtsi
+++ b/dts/arm/nxp/nxp_rt11xx_cm4.dtsi
@@ -52,6 +52,13 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		mailbox_b: mailbox@40c4c000 {
+			compatible = "nxp,imx-mu-rev2";
+			reg = <0x40c4c000 0x4000>;
+			interrupts = <118 0>;
+			rdc = <0>;
+		};
 	};
 };
 
diff --git a/dts/arm/nxp/nxp_rt11xx_cm7.dtsi b/dts/arm/nxp/nxp_rt11xx_cm7.dtsi
index c9006e2ebc6..9d5495ed3e2 100644
--- a/dts/arm/nxp/nxp_rt11xx_cm7.dtsi
+++ b/dts/arm/nxp/nxp_rt11xx_cm7.dtsi
@@ -75,6 +75,13 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		mailbox_a: mailbox@40c48000 {
+			compatible = "nxp,imx-mu-rev2";
+			reg = <0x40c48000 0x4000>;
+			interrupts = <118 0>;
+			rdc = <0>;
+		};
 	};
 };
 
diff --git a/dts/bindings/arm/nxp,imx-mu-rev2.yaml b/dts/bindings/arm/nxp,imx-mu-rev2.yaml
new file mode 100644
index 00000000000..8caa2bc7f3e
--- /dev/null
+++ b/dts/bindings/arm/nxp,imx-mu-rev2.yaml
@@ -0,0 +1,20 @@
+# Copyright (c) 2018, NXP
+# SPDX-License-Identifier: Apache-2.0
+
+description: i.MX Messaging Unit
+
+compatible: "nxp,imx-mu-rev2"
+
+include: base.yaml
+
+properties:
+  reg:
+      required: true
+
+  interrupts:
+      required: true
+
+  rdc:
+     type: int
+     required: true
+     description: Set the RDC permission for this peripheral