ARM: rmobile: Add Beacon EmbeddedWorks RZG2N Dev Kit

The Beacon EmbeddedWorks kit is based on the R8A774B1 SoC also
known as the RZ/G2N.

The kit consists of a SOM + Baseboard and supports microSD,
eMMC, Ethernet, a couple celular radios, two CAN interfaces,
Bluetooth and WiFi.  It shares much of the same design as
the RZ/G2M dev kit.

Signed-off-by: Adam Ford <aford173@gmail.com>

arch/arm/dts/Makefile

@@ -809,6 +809,7 @@ dtb-$(CONFIG_RCAR_GEN2) += \
 
 dtb-$(CONFIG_RCAR_GEN3) += \
 	r8a774a1-beacon-rzg2m-kit.dtb \
+	r8a774b1-beacon-rzg2n-kit.dtb \
 	r8a77950-ulcb-u-boot.dtb \
 	r8a77950-salvator-x-u-boot.dtb \
 	r8a77960-ulcb-u-boot.dtb \

arch/arm/dts/r8a774b1-beacon-rzg2n-kit-u-boot.dtsi

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020 Compass Electronics Group, LLC
+ */
+
+/ {
+	soc {
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&cpg {
+	u-boot,dm-pre-reloc;
+};
+
+&extal_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&prr {
+	u-boot,dm-pre-reloc;
+};
+
+&extalr_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&sdhi0 {
+	/delete-property/ cd-gpios;
+};
+
+&sdhi2 {
+	status = "disabled";
+};

arch/arm/dts/r8a774b1-beacon-rzg2n-kit.dts

@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020, Compass Electronics Group, LLC
+ */
+
+/dts-v1/;
+
+#include "r8a774b1.dtsi"
+#include "beacon-renesom-som.dtsi"
+#include "beacon-renesom-baseboard.dtsi"
+
+/ {
+	model = "Beacon Embedded Works RZ/G2N Development Kit";
+	compatible =	"beacon,beacon-rzg2n", "renesas,r8a774b1";
+
+	aliases {
+		serial0 = &scif2;
+		serial1 = &hscif0;
+		serial2 = &hscif1;
+		serial3 = &scif0;
+		serial4 = &hscif2;
+		serial5 = &scif5;
+		serial6 = &scif4;
+		ethernet0 = &avb;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&du {
+	pinctrl-0 = <&du_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	clocks = <&cpg CPG_MOD 724>,
+		<&cpg CPG_MOD 723>,
+		<&cpg CPG_MOD 721>,
+		<&versaclock5 1>,
+		<&x302_clk>,
+		<&versaclock5 2>;
+	clock-names = "du.0", "du.1", "du.3",
+		"dclkin.0", "dclkin.1", "dclkin.3";
+};
+
+/* Reference versaclock instead of audio_clk_a */
+&rcar_sound {
+	clocks = <&cpg CPG_MOD 1005>,
+		 <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
+		 <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
+		 <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
+		 <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
+		 <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
+		 <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
+		 <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
+		 <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
+		 <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
+		 <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
+		 <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+		 <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+		 <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
+		 <&versaclock6_bb 4>, <&audio_clk_b>,
+		 <&audio_clk_c>,
+		 <&cpg CPG_CORE R8A774B1_CLK_S0D4>;
+};

arch/arm/mach-rmobile/Kconfig.64

@@ -65,6 +65,11 @@ config TARGET_BEACON_RZG2M
 	select R8A774A1
 	select PINCTRL_PFC_R8A774A1
 
+config TARGET_BEACON_RZG2N
+	bool "Beacon EmbeddedWorks RZ/G2N Dev Kit"
+	select R8A774B1
+	select PINCTRL_PFC_R8A774B1
+
 config TARGET_CONDOR
 	bool "Condor board"
 	imply R8A77980

board/beacon/beacon-rzg2m/Kconfig

@@ -1,4 +1,4 @@
-if TARGET_BEACON_RZG2M
+if TARGET_BEACON_RZG2M || TARGET_BEACON_RZG2N
 
 config SYS_SOC
 	default "rmobile"

board/beacon/beacon-rzg2m/MAINTAINERS

@@ -4,3 +4,4 @@ S:	Maintained
 F:	board/beacon/beacon-rzg2m/
 F:	include/configs/beacon-rzg2m.h
 F:	configs/r8a774a1_beacon_defconfig
+F:	configs/r8a774b1_beacon_defconfig

configs/r8a774b1_beacon_defconfig

@@ -0,0 +1,71 @@
+CONFIG_ARM=y
+CONFIG_ARCH_RMOBILE=y
+CONFIG_SYS_TEXT_BASE=0x50000000
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_ENV_OFFSET=0x0
+CONFIG_DM_GPIO=y
+CONFIG_RCAR_GEN3=y
+CONFIG_R8A774B1=y
+CONFIG_TARGET_BEACON_RZG2N=y
+# CONFIG_SPL is not set
+CONFIG_DEFAULT_DEVICE_TREE="r8a774b1-beacon-rzg2n-kit"
+CONFIG_FIT=y
+CONFIG_SUPPORT_RAW_INITRD=y
+# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
+CONFIG_DEFAULT_FDT_FILE="r8a774b1-beacon-rzg2n-kit.dtb"
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_SYS_MMC_ENV_DEV=1
+CONFIG_SYS_MMC_ENV_PART=2
+CONFIG_VERSION_VARIABLE=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_CLK=y
+CONFIG_CLK_RENESAS=y
+CONFIG_RCAR_GPIO=y
+CONFIG_DM_PCA953X=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_RCAR_I2C=y
+CONFIG_SYS_I2C_RCAR_IIC=y
+CONFIG_DM_MMC=y
+CONFIG_MMC_IO_VOLTAGE=y
+CONFIG_MMC_UHS_SUPPORT=y
+CONFIG_MMC_HS200_SUPPORT=y
+CONFIG_RENESAS_SDHI=y
+CONFIG_MTD=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_BITBANGMII=y
+CONFIG_PHY_REALTEK=y
+CONFIG_DM_ETH=y
+CONFIG_RENESAS_RAVB=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_SCIF_CONSOLE=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_RENESAS_RPC_SPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT_OVERLAY=y