diff --git a/boards/arc/qemu_arc/qemu_arc.dtsi b/boards/arc/qemu_arc/qemu_arc.dtsi
index c644abf8e02..22a5bd7120d 100644
--- a/boards/arc/qemu_arc/qemu_arc.dtsi
+++ b/boards/arc/qemu_arc/qemu_arc.dtsi
@@ -24,6 +24,7 @@
 		#interrupt-cells = <2>;
 	};
 
+	/* We are carving out of DRAM for a pseudo flash and sram region */
 	flash0: flash@80000000 {
 		compatible = "soc-nv-flash";
 		reg = <0x80000000 DT_FLASH_SIZE>;
@@ -31,7 +32,6 @@
 
 	sram0: sram@80400000 {
 		device_type = "memory";
-		compatible = "mmio-sram";
 		reg = <0x80400000 DT_SRAM_SIZE>;
 	};
 
diff --git a/boards/arm/mimxrt1020_evk/mimxrt1020_evk.dts b/boards/arm/mimxrt1020_evk/mimxrt1020_evk.dts
index 6e63c0b698e..2fca7e2eb9c 100644
--- a/boards/arm/mimxrt1020_evk/mimxrt1020_evk.dts
+++ b/boards/arm/mimxrt1020_evk/mimxrt1020_evk.dts
@@ -25,7 +25,6 @@
 	sdram0: memory@80000000 {
 		/* ISSI IS42S16160J-6TLI */
 		device_type = "memory";
-		compatible = "mmio-sram";
 		reg = <0x80000000 0x2000000>;
 	};
 
diff --git a/boards/arm/mimxrt1050_evk/mimxrt1050_evk.dts b/boards/arm/mimxrt1050_evk/mimxrt1050_evk.dts
index d614a904b45..d33c9f0682a 100644
--- a/boards/arm/mimxrt1050_evk/mimxrt1050_evk.dts
+++ b/boards/arm/mimxrt1050_evk/mimxrt1050_evk.dts
@@ -26,7 +26,6 @@
 	sdram0: memory@80000000 {
 		/* Micron MT48LC16M16A2B4-6AIT:G */
 		device_type = "memory";
-		compatible = "mmio-sram";
 		reg = <0x80000000 0x2000000>;
 	};
 
diff --git a/boards/arm/mimxrt1060_evk/mimxrt1060_evk.dts b/boards/arm/mimxrt1060_evk/mimxrt1060_evk.dts
index 4fb548bd60c..f520e788c70 100644
--- a/boards/arm/mimxrt1060_evk/mimxrt1060_evk.dts
+++ b/boards/arm/mimxrt1060_evk/mimxrt1060_evk.dts
@@ -26,7 +26,6 @@
 	sdram0: memory@80000000 {
 		/* Micron MT48LC16M16A2B4-6AIT:G */
 		device_type = "memory";
-		compatible = "mmio-sram";
 		reg = <0x80000000 0x2000000>;
 	};
 
diff --git a/boards/arm/mimxrt1064_evk/mimxrt1064_evk.dts b/boards/arm/mimxrt1064_evk/mimxrt1064_evk.dts
index 5be3c30083b..647cb7e2fc0 100644
--- a/boards/arm/mimxrt1064_evk/mimxrt1064_evk.dts
+++ b/boards/arm/mimxrt1064_evk/mimxrt1064_evk.dts
@@ -27,7 +27,6 @@
 	sdram0: memory@80000000 {
 		/* Micron MT48LC16M16A2B4-6AIT:G */
 		device_type = "memory";
-		compatible = "mmio-sram";
 		reg = <0x80000000 0x2000000>;
 	};
 
diff --git a/boards/arm/mm_swiftio/mm_swiftio.dts b/boards/arm/mm_swiftio/mm_swiftio.dts
index 8c4c4cc2f2b..c9e3eb29864 100644
--- a/boards/arm/mm_swiftio/mm_swiftio.dts
+++ b/boards/arm/mm_swiftio/mm_swiftio.dts
@@ -26,7 +26,6 @@
 	sdram0: memory@80000000 {
 		/* Micron MT48LC16M16A2B4-6AIT:G */
 		device_type = "memory";
-		compatible = "mmio-sram";
 		reg = <0x80000000 0x2000000>;
 	};
 
diff --git a/boards/riscv/litex_vexriscv/litex_vexriscv.dts b/boards/riscv/litex_vexriscv/litex_vexriscv.dts
index 9b5b409bfbe..357c76ab140 100644
--- a/boards/riscv/litex_vexriscv/litex_vexriscv.dts
+++ b/boards/riscv/litex_vexriscv/litex_vexriscv.dts
@@ -19,7 +19,6 @@
 
 	ram0: memory@40000000 {
 		device_type = "memory";
-		compatible = "mmio-sram";
 		reg = <0x40000000 0x10000000>;
 	};
 };
diff --git a/dts/arc/arc_hsdk.dtsi b/dts/arc/arc_hsdk.dtsi
index 3d556f316f7..a08580dba7b 100644
--- a/dts/arc/arc_hsdk.dtsi
+++ b/dts/arc/arc_hsdk.dtsi
@@ -63,7 +63,6 @@
 
 		ddr0: memory@90000000 {
 			device_type = "memory";
-			compatible = "mmio-sram";
 			reg = <0x90000000 0x50000000>;
 		};
 
diff --git a/dts/arc/emsk.dtsi b/dts/arc/emsk.dtsi
index 6cc26891e3c..171f2f61834 100644
--- a/dts/arc/emsk.dtsi
+++ b/dts/arc/emsk.dtsi
@@ -42,7 +42,6 @@
 
 		ddr0: memory@10000000 {
 			device_type = "memory";
-			compatible = "mmio-sram";
 			reg = <0x10000000 0x8000000>;
 		};
 
diff --git a/dts/arm/broadcom/valkyrie.dtsi b/dts/arm/broadcom/valkyrie.dtsi
index 9bf4cde97f9..4933e3a9855 100644
--- a/dts/arm/broadcom/valkyrie.dtsi
+++ b/dts/arm/broadcom/valkyrie.dtsi
@@ -29,7 +29,6 @@
 	soc {
 		sram0: memory@400000 {
 			device_type = "memory";
-			compatible = "mmio-sram";
 			reg = <0x00400000 0x30000>;
 		};
 
diff --git a/dts/arm/broadcom/viper-common.dtsi b/dts/arm/broadcom/viper-common.dtsi
index 3bb66507aea..b779c13d5d0 100644
--- a/dts/arm/broadcom/viper-common.dtsi
+++ b/dts/arm/broadcom/viper-common.dtsi
@@ -8,7 +8,6 @@
 	soc {
 		sram0: memory@400000 {
 			device_type = "memory";
-			compatible = "mmio-sram";
 			reg = <0x00400000 0x80000>;
 		};