diff --git a/arch/arm64/boot/dts/ti/k3-am623-pfc-750-8xxx-common.dtsi b/arch/arm64/boot/dts/ti/k3-am623-pfc-750-8xxx-common.dtsi
index 41aa9ae2b42b..e4aa0c3aabf3 100644
--- a/arch/arm64/boot/dts/ti/k3-am623-pfc-750-8xxx-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am623-pfc-750-8xxx-common.dtsi
@@ -71,6 +71,7 @@
 		ramoops@9ca00000 {
 			compatible = "ramoops";
 			reg = <0x00 0x9ca00000 0x00 0x00100000>;
+			no-map;
 			record-size = <0x8000>;
 			console-size = <0x8000>;
 			ftrace-size = <0x00>;
@@ -89,12 +90,26 @@
 			no-map;
 		};
 
+		/* Gap between m4f-memory and r5f-dma-memory: must be reserved
+		 * to prevent Linux from allocating pages that are adjacent to
+		 * ioremap_wc-mapped M4 regions (ARM64 cache aliasing). */
+		m4f_gap_memory: m4f-gap@9da00000 {
+			reg = <0x00 0x9da00000 0x00 0x100000>;
+			no-map;
+		};
+
 		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9db00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9db00000 0x00 0xc00000>;
 			no-map;
 		};
 
+		/* Gap between r5f-dma-memory and tfa */
+		r5f_gap_memory: r5f-gap@9e700000 {
+			reg = <0x00 0x9e700000 0x00 0x80000>;
+			no-map;
+		};
+
 		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9cb00000 0x00 0x100000>;