boards: amd: Add board support for the versalnet rpu on Versal net SOC

Add generic board support for the RPU, real-time processing
unit on Versal NET SoC. It is based on Cortext-R52 processor.

Signed-off-by: Mubin Sayyed <[email protected]>
Signed-off-by: Appana Durga Kedareswara rao <[email protected]>

boards/amd/versalnet_rpu/Kconfig.versalnet_rpu

@@ -0,0 +1,8 @@
+#
+# Copyright (c) 2025 Advanced Micro Devices, Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config BOARD_VERSALNET_RPU
+	select SOC_AMD_VERSALNET_RPU

boards/amd/versalnet_rpu/board.cmake

@@ -0,0 +1,7 @@
+#
+# Copyright (c) 2025 Advanced Micro Devices, Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+include(${ZEPHYR_BASE}/boards/common/xsdb.board.cmake)

boards/amd/versalnet_rpu/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: versalnet_rpu
+  vendor: amd
+  socs:
+  - name: amd_versalnet_rpu

boards/amd/versalnet_rpu/support/xsdb.cfg

@@ -0,0 +1,44 @@
+# Copyright (c) 2025 Advanced Micro Devices, Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+proc load_image args  {
+	set elf_file [lindex $args 0]
+
+	if { [info exists ::env(HW_SERVER_URL)] } {
+		connect -url $::env(HW_SERVER_URL)
+	} else {
+		connect
+	}
+
+	after 100
+	targets -set -nocase -filter {name =~ "Versal*"}
+	after 100
+	rst -system
+	after 100
+
+	if { [info exists ::env(PDI_FILE_PATH)] } {
+		device program $::env(PDI_FILE_PATH)
+	} else {
+		puts "Error: env variable PDI_FILE_PATH is not set"
+		exit
+	}
+
+	after 100
+	targets -set -nocase -filter {name =~ "DPC"}
+	after 100
+	# Configure timestamp generator to run global timer gracefully
+	# Ideally these registers should be set from bootloader (cdo)
+	mwr -force 0xeb5b0000 0x1
+	mwr -force 0xeb5b0020 100000000
+	after 100
+
+	targets -set -nocase -filter {name =~ "*Cortex-R52 #0.0"}
+	rst -proc
+	after 100
+	dow -force $elf_file
+	con
+	exit
+}
+
+load_image {*}$argv

boards/amd/versalnet_rpu/versalnet_rpu.dts

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * (C) Copyright 2025, Advanced Micro Devices, Inc.
+ *
+ * Mubin Sayyed <[email protected]>
+ */
+
+/dts-v1/;
+#include <arm/xilinx/versalnet_r52.dtsi>
+
+/ {
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,ocm = &ocm;
+	};
+};
+
+&cpu0 {
+	 clock-frequency = <100000000>;
+};
+
+&soc {
+	sram0: memory@0 {
+		compatible = "mmio-sram";
+		reg = <0x00000 DT_SIZE_M(2048)>;
+	};
+};
+
+&ocm {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+	current-speed = <115200>;
+	clock-frequency = <100000000>;
+};
+
+&uart0 {
+	status = "okay";
+	current-speed = <115200>;
+	clock-frequency = <100000000>;
+};

boards/amd/versalnet_rpu/versalnet_rpu.yaml

@@ -0,0 +1,10 @@
+identifier: versalnet_rpu
+name: AMD Development board for Versal NET RPU
+arch: arm
+toolchain:
+  - zephyr
+testing:
+  ignore_tags:
+    - net
+    - bluetooth
+vendor: amd

boards/amd/versalnet_rpu/versalnet_rpu_defconfig

@@ -0,0 +1,9 @@
+# Enable UART driver
+CONFIG_SERIAL=y
+
+# Enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# Enable serial port
+CONFIG_UART_PL011=y