Add support for i.MX8ULP DSP core, or imx8ulp_evk//adsp board, in openamp_rsc_table sample

dts/xtensa/nxp/nxp_imx8ulp.dtsi

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 NXP
+ * Copyright 2023, 2024 NXP
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -17,16 +17,16 @@
 			device_type = "cpu";
 			compatible = "cdns,tensilica-xtensa-lx7";
 			reg = <0>;
-		};
 
-		#address-cells = <1>;
-		#size-cells = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
 
-		clic: interrupt-controller@0 {
-			compatible = "cdns,xtensa-core-intc";
-			reg = <0>;
-			interrupt-controller;
-			#interrupt-cells = <3>;
+			clic: interrupt-controller@0 {
+				compatible = "cdns,xtensa-core-intc";
+				reg = <0>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+			};
 		};
 	};
 
@@ -98,4 +98,14 @@
 		dai-index = <6>;
 		status = "disabled";
 	};
+
+	mu3: mbox@2da20000 {
+		compatible = "nxp,mbox-imx-mu";
+		reg = <0x2da20000 DT_SIZE_K(64)>;
+		interrupt-parent = <&clic>;
+		interrupts = <15 0 0>;
+		rx-channels = <4>;
+		#mbox-cells = <1>;
+		status = "disabled";
+	};
 };

samples/subsys/ipc/openamp_rsc_table/boards/imx8ulp_evk_mimx8ud7_adsp.conf

@@ -0,0 +1,8 @@
+CONFIG_LOG_PRINTK=n
+CONFIG_OPENAMP_WITH_DCACHE=y
+
+CONFIG_MBOX=y
+CONFIG_MBOX_INIT_PRIORITY=3
+
+CONFIG_IPM_MBOX=y
+CONFIG_MBOX_NXP_IMX_MU=y

samples/subsys/ipc/openamp_rsc_table/boards/imx8ulp_evk_mimx8ud7_adsp.overlay

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		/*
+		 * shared memory reserved for the inter-processor communication
+		 */
+		zephyr,ipc_shm = &dspsram3;
+		zephyr,ipc = &mailbox0;
+	};
+
+	dspsram3: memory@8fef0000 {
+		compatible = "mmio-sram";
+		reg = <0x8fef0000 0x110000>;
+	};
+
+	mailbox0: mailbox {
+		compatible = "zephyr,mbox-ipm";
+		mboxes = <&mu3 0>, <&mu3 1>;
+		mbox-names = "tx", "rx";
+		status = "okay";
+	};
+};
+
+&mu3 {
+	status = "okay";
+};

soc/nxp/imx/imx8ulp/adsp/linker.ld

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 NXP
+ * Copyright 2023, 2024 NXP
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -172,6 +172,13 @@ EXTERN(ext_man_fw_ver)
 SECTIONS
 {
 
+#ifdef CONFIG_OPENAMP_RSC_TABLE
+    SECTION_PROLOGUE(.resource_table,, SUBALIGN(4))
+    {
+      KEEP(*(.resource_table*))
+    } GROUP_LINK_IN(ROMABLE_REGION)
+#endif
+
 #include <zephyr/linker/rel-sections.ld>
 
 #ifdef CONFIG_LLEXT

west.yml

@@ -203,7 +203,7 @@ manifest:
       groups:
         - hal
     - name: hal_nxp
-      revision: d2e2514cbe70babc2dfe6e8eb0e4f9e4c97769b6
+      revision: pull/488/head
       path: modules/hal/nxp
       groups:
         - hal