Add support of rcar spider board

boards/arm64/rcar_spider/Kconfig.board

@@ -0,0 +1,6 @@
+# Copyright (c) 2023 EPAM Systems
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_RCAR_SPIDER
+	bool "Renesas Spider"
+	depends on SOC_R8A779F

boards/arm64/rcar_spider/Kconfig.defconfig

@@ -0,0 +1,12 @@
+# Copyright (c) 2023 EPAM Systems
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_RCAR_SPIDER
+
+config BOARD
+	default "rcar_spider"
+
+config BUILD_OUTPUT_BIN
+	default y
+
+endif # BOARD_RCAR_SPIDER

boards/arm64/rcar_spider/doc/index.rst

@@ -0,0 +1,80 @@
+.. _rcar_spider:
+
+R-CAR Spider (ARMv8)
+#####################################
+Note: currently, the board can be used only as a Xen Initial Domain, i.e. Dom0,
+because there isn't support of UART driver. So, it can be built only with ``xen_dom0``
+shield.
+
+Overview
+********
+The R-Car Spider (S4) is an SOC that features the basic functions for
+next-generation car Gateway systems.
+
+Hardware
+********
+The R-Car S4 includes:
+
+* eight 1.2GHz Arm Cortex-A55 cores, 2 cores x 4 clusters;
+* 1.0 GHz Arm Cortex-R52 core (hardware Lock step is supported);
+* two 400MHz G4MH cores (hardware Lock step is supported);
+* memory controller for LPDDR4X-3200 with 32bit bus (16bit x 1ch + 16bit x 1ch) with ECC;
+* SD card host interface / eMMC;
+* UFS 3.0 x 1 channel;
+* PCI Express Gen4.0 interface (Dual lane x 2ch);
+* ICUMX;
+* ICUMH;
+* SHIP-S x 3 channels;
+* AES Accerator x 8 channels;
+* CAN FD interface x 16 channels;
+* R-Switch2 (Ether);
+* 100base EtherAVB x 1 channel;
+* Gbit-EtherTSN x 3 channels;
+* 1 unit FlexRay (A,B 2ch) interface.
+
+Supported Features
+==================
+The Renesas rcar_spider board configuration supports the following
+hardware features:
+
++-----------+------------------------------+--------------------------------+
+| Interface | Driver/components            | Support level                  |
++===========+==============================+================================+
+| PINCTRL   | pinctrl                      |                                |
++-----------+------------------------------+--------------------------------+
+| CLOCK     | clock_control                |                                |
++-----------+------------------------------+--------------------------------+
+| MMC       | renesas_rcar_mmc             |                                |
++-----------+------------------------------+--------------------------------+
+
+Other hardware features have not been enabled yet for this board.
+
+The default configuration can be found in the defconfig file:
+
+        ``boards/arm64/rcar_spider/rcar_spider_defconfig``
+
+Programming and Debugging
+*************************
+
+Correct shield designation for Xen must be entered when you invoke ``west build``.
+For example:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/synchronization
+   :board: rcar_spider
+   :shield: xen_dom0
+   :goals: build
+
+For more details, look at documentation of ``xen_dom0`` shield.
+
+References
+**********
+
+- `Renesas R-Car Development Support website`_
+- `eLinux Spider page`_
+
+.. _Renesas R-Car Development Support website:
+   https://www.renesas.com/us/en/support/partners/r-car-consortium/r-car-development-support
+
+.. _eLinux Spider page:
+   https://elinux.org/R-Car/Boards/Spider

boards/arm64/rcar_spider/rcar_spider.dts

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2023 EPAM Systems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ */
+
+/dts-v1/;
+#include <mem.h>
+#include <arm64/renesas/r8a779f.dtsi>
+#include "spider-pinctrl.dtsi"
+
+/ {
+	model = "Spider (S4)";
+	chosen {
+		zephyr,sram = &ram;
+	};
+
+	/* These aliases are provided for compatibility with samples */
+	aliases {
+		sdhc0 = &mmc0;
+	};
+
+	ram: memory@48000000 {
+		device_type = "mmio-sram";
+		reg = <0x0 0x48000000 0x0 DT_SIZE_M(512)>;
+	};
+};
+
+&mmc0 {
+	pinctrl-0 = <&mmc_clk &mmc_cmd &mmc_ds
+		&mmc_data0 &mmc_data1 &mmc_data2 &mmc_data3
+		&mmc_data4 &mmc_data5 &mmc_data6 &mmc_data7>;
+	pinctrl-1 = <&mmc_clk &mmc_cmd &mmc_ds
+		&mmc_data0 &mmc_data1 &mmc_data2 &mmc_data3
+		&mmc_data4 &mmc_data5 &mmc_data6 &mmc_data7>;
+	pinctrl-names = "default", "uhs";
+	disk {
+		compatible = "zephyr,mmc-disk";
+		status = "disabled";
+	};
+	bus-width = <8>;
+	mmc-hs200-1_8v;
+	mmc-hs400-1_8v;
+	non-removable;
+};

boards/arm64/rcar_spider/rcar_spider.yaml

@@ -0,0 +1,17 @@
+identifier: rcar_spider
+name: Renesas Spider based on r8a779f (S4)
+type: mcu
+arch: arm64
+toolchain:
+  - zephyr
+  - cross-compile
+ram: 512
+supported:
+  - clock_control
+  - uart
+testing:
+  default: true
+  ignore_tags:
+    - net
+    - bluetooth
+    - isotp

boards/arm64/rcar_spider/rcar_spider_defconfig

@@ -0,0 +1,21 @@
+CONFIG_SOC_R8A779F=y
+CONFIG_SOC_SERIES_RCAR_GEN4=y
+CONFIG_BOARD_RCAR_SPIDER=y
+
+# Cache management
+CONFIG_CACHE_MANAGEMENT=y
+
+# Enable UART driver
+CONFIG_SERIAL=y
+CONFIG_AARCH64_IMAGE_HEADER=y
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=16666000
+CONFIG_XIP=n
+
+CONFIG_MAX_XLAT_TABLES=24
+
+# Enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# Enable clock control
+CONFIG_CLOCK_CONTROL=y

boards/arm64/rcar_spider/spider-pinctrl.dtsi

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023 EPAM Systems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pinctrl/renesas/pinctrl-r8a779f.h>
+
+&pfc {
+	mmc_clk: mmc_clk {
+		pin = <PIN_MMC_SD_CLK>;
+	};
+
+	mmc_cmd: mmc_cmd {
+		pin = <PIN_MMC_SD_CMD>;
+	};
+
+	mmc_data0: mmc_data0 {
+		pin = <PIN_MMC_SD_D0>;
+	};
+
+	mmc_data1: mmc_data1 {
+		pin = <PIN_MMC_SD_D1>;
+	};
+
+	mmc_data2: mmc_data2 {
+		pin = <PIN_MMC_SD_D2>;
+	};
+
+	mmc_data3: mmc_data3 {
+		pin = <PIN_MMC_SD_D3>;
+	};
+
+	mmc_data4: mmc_data4 {
+		pin = <PIN_MMC_D4>;
+	};
+
+	mmc_data5: mmc_data5 {
+		pin = <PIN_MMC_D5>;
+	};
+
+	mmc_data6: mmc_data6 {
+		pin = <PIN_MMC_D6>;
+	};
+
+	mmc_data7: mmc_data7 {
+		pin = <PIN_MMC_D7>;
+	};
+
+	mmc_ds: mmc_ds {
+		pin = <PIN_MMC_DS>;
+	};
+};

drivers/clock_control/CMakeLists.txt

@@ -64,6 +64,7 @@ zephyr_library_sources_ifdef(CONFIG_SOC_SERIES_AGILEX clock_agilex.c)
 if(CONFIG_CLOCK_CONTROL_RCAR_CPG_MSSR)
   zephyr_library_sources(clock_control_renesas_cpg_mssr.c)
   zephyr_library_sources_ifdef(CONFIG_DT_HAS_RENESAS_R8A7795_CPG_MSSR_ENABLED clock_control_r8a7795_cpg_mssr.c)
+  zephyr_library_sources_ifdef(CONFIG_DT_HAS_RENESAS_R8A779F_CPG_MSSR_ENABLED clock_control_r8a779f_cpg_mssr.c)
 endif()
 
 zephyr_library_sources_ifdef(CONFIG_CLOCK_CONTROL_AST10X0 clock_control_ast10x0.c)

drivers/clock_control/Kconfig.rcar

@@ -4,6 +4,6 @@
 config CLOCK_CONTROL_RCAR_CPG_MSSR
 	bool "RCar CPG MSSR driver"
 	default y
-	depends on DT_HAS_RENESAS_R8A7795_CPG_MSSR_ENABLED
+	depends on DT_HAS_RENESAS_R8A7795_CPG_MSSR_ENABLED || DT_HAS_RENESAS_R8A779F_CPG_MSSR_ENABLED
 	help
 	  Enable support for Renesas RCar CPG MSSR driver.