boards: xtensa: adsp: add support for imx8 board

Add support for i.MX8QM board by defining defconfig,
board configuration and device tree.

Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>

boards/xtensa/nxp_adsp_imx8/Kconfig.board

@@ -0,0 +1,7 @@
+# Xtensa board configuration
+
+# Copyright (c) 2021 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+config  BOARD_NXP_ADSP_IMX8
+	bool "NXP ADSP i.MX8"

boards/xtensa/nxp_adsp_imx8/Kconfig.defconfig

@@ -0,0 +1,19 @@
+# Copyright (c) 2021 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_NXP_ADSP_IMX8
+
+config BOARD
+	default "nxp_adsp_imx8"
+
+config DUMMY_DMA
+	default y
+	depends on DMA
+
+config IMX_EDMA
+	default y
+	depends on DMA
+
+
+endif # BOARD_NXP_ADSP_IMX8

boards/xtensa/nxp_adsp_imx8/board.cmake

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0
+
+board_set_flasher_ifnset(misc-flasher)
+board_finalize_runner_args(misc-flasher)

boards/xtensa/nxp_adsp_imx8/nxp_adsp_imx8.dts

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2021 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <nxp/nxp_imx8.dtsi>
+
+/ {
+	model = "nxp_adsp_imx8";
+	compatible = "nxp";
+
+	chosen {
+		zephyr,sram = &sram0;
+	};
+};

boards/xtensa/nxp_adsp_imx8/nxp_adsp_imx8.yaml

@@ -0,0 +1,10 @@
+identifier: nxp_adsp_imx8
+name: i.MX8 DSP
+type: mcu
+arch: xtensa
+toolchain:
+  - zephyr
+testing:
+  only_tags:
+     - kernel
+     - sof

boards/xtensa/nxp_adsp_imx8/nxp_adsp_imx8_defconfig

@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_MAIN_STACK_SIZE=3072
+
+CONFIG_SOC_SERIES_NXP_IMX8=y
+CONFIG_BOARD_NXP_ADSP_IMX8=y
+
+CONFIG_GEN_ISR_TABLES=y
+CONFIG_GEN_IRQ_VECTOR_TABLE=n
+
+CONFIG_XTENSA_RESET_VECTOR=y
+
+CONFIG_XTENSA_USE_CORE_CRT1=y
+
+CONFIG_MULTI_LEVEL_INTERRUPTS=n
+CONFIG_2ND_LEVEL_INTERRUPTS=n
+
+CONFIG_BOOTLOADER_SRAM_SIZE=192
+CONFIG_BUILD_OUTPUT_BIN=n
+CONFIG_CLEANUP_INTERMEDIATE_FILES=y