diff --git a/dts/arm/nxp/nxp_k6x.dtsi b/dts/arm/nxp/nxp_k6x.dtsi
index a580a71f4dc..cb709852141 100644
--- a/dts/arm/nxp/nxp_k6x.dtsi
+++ b/dts/arm/nxp/nxp_k6x.dtsi
@@ -78,7 +78,7 @@
 				compatible = "soc-nv-flash";
 				label = "MCUX_FLASH";
 				reg = <0 0x100000>;
-
+				erase-block-size = <4096>;
 				write-block-size = <8>;
 			};
 		};
diff --git a/dts/arm/nxp/nxp_kl25z.dtsi b/dts/arm/nxp/nxp_kl25z.dtsi
index b14f4a94747..61665025df3 100644
--- a/dts/arm/nxp/nxp_kl25z.dtsi
+++ b/dts/arm/nxp/nxp_kl25z.dtsi
@@ -34,6 +34,7 @@
 				compatible = "soc-nv-flash";
 				label = "MCUX_FLASH";
 				reg = <0 0x20000>;
+				erase-block-size = <1024>;
 				write-block-size = <4>;
 			};
 		};
diff --git a/dts/arm/nxp/nxp_kw2xd.dtsi b/dts/arm/nxp/nxp_kw2xd.dtsi
index c877d7388d2..3c64563b151 100644
--- a/dts/arm/nxp/nxp_kw2xd.dtsi
+++ b/dts/arm/nxp/nxp_kw2xd.dtsi
@@ -70,6 +70,7 @@
 				compatible = "soc-nv-flash";
 				label = "MCUX_FLASH";
 				reg = <0 0x80000>;
+				erase-block-size = <2048>;
 				write-block-size = <4>;
 			};
 		};
diff --git a/dts/arm/nxp/nxp_kw40z.dtsi b/dts/arm/nxp/nxp_kw40z.dtsi
index 4db00ff6314..71ca71ac3af 100644
--- a/dts/arm/nxp/nxp_kw40z.dtsi
+++ b/dts/arm/nxp/nxp_kw40z.dtsi
@@ -62,6 +62,7 @@
 				compatible = "soc-nv-flash";
 				label = "MCUX_FLASH";
 				reg = <0 0x80000>;
+				erase-block-size = <1024>;
 				write-block-size = <4>;
 			};
 		};
diff --git a/dts/arm/nxp/nxp_kw41z.dtsi b/dts/arm/nxp/nxp_kw41z.dtsi
index a04e4f5d897..d71e8488d29 100644
--- a/dts/arm/nxp/nxp_kw41z.dtsi
+++ b/dts/arm/nxp/nxp_kw41z.dtsi
@@ -62,6 +62,7 @@
 				compatible = "soc-nv-flash";
 				label = "MCUX_FLASH";
 				reg = <0 0x80000>;
+				erase-block-size = <2048>;
 				write-block-size = <4>;
 			};
 		};
diff --git a/dts/bindings/mtd/soc-nv-flash.yaml b/dts/bindings/mtd/soc-nv-flash.yaml
index 5f31805e78a..82b743e2147 100644
--- a/dts/bindings/mtd/soc-nv-flash.yaml
+++ b/dts/bindings/mtd/soc-nv-flash.yaml
@@ -13,6 +13,13 @@ properties:
       description: compatible strings
       constraint: "soc-nv-flash"
 
+    erase-block-size:
+     type: int
+     description: address alignment required by flash erase operations
+     generation: define
+     category: optional
+     label: alignment
+
     write-block-size:
      type: int
      description: address alignment required by flash write operations