arm: rmobile: Add HopeRun HiHope RZ/G2N board support

The HiHope RZ/G2N board from HopeRun consists of main board
(HopeRun HiHope RZ/G2N main board) and sub board(HopeRun
HiHope RZ/G2N sub board). The HiHope RZ/G2N sub board sits
below the HiHope RZ/G2N main board.

This patch adds the required board support to boot HopeRun HiHope
RZ/G2N board.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

6 files changed, 88 insertions, 2 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 142e2ad6bf..6eaee5f41d 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -823,6 +823,7 @@ dtb-$(CONFIG_RCAR_GEN3) += \
 	r8a774b1-beacon-rzg2n-kit.dtb \
 	r8a774e1-beacon-rzg2h-kit.dtb \
 	r8a774a1-hihope-rzg2m-u-boot.dtb \
+	r8a774b1-hihope-rzg2n-u-boot.dtb \
 	r8a77950-ulcb-u-boot.dtb \
 	r8a77950-salvator-x-u-boot.dtb \
 	r8a77960-ulcb-u-boot.dtb \
diff --git a/arch/arm/dts/r8a774b1-hihope-rzg2n-u-boot.dts b/arch/arm/dts/r8a774b1-hihope-rzg2n-u-boot.dts
new file mode 100644
index 0000000000..0bdc6909bf
--- /dev/null
+++ b/arch/arm/dts/r8a774b1-hihope-rzg2n-u-boot.dts
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source extras for U-Boot for the Hihope RZ/G2N board
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+#include "r8a774b1-hihope-rzg2n-ex.dts"
+#include "r8a774b1-u-boot.dtsi"
+
+&gpio3 {
+	bt_reg_on{
+		gpio-hog;
+		gpios = <13 GPIO_ACTIVE_HIGH>;
+		output-low;
+		line-name = "bt-reg-on";
+	};
+};
+
+&gpio4 {
+	wlan_reg_on{
+		gpio-hog;
+		gpios = <6 GPIO_ACTIVE_HIGH>;
+		output-low;
+		line-name = "wlan-reg-on";
+	};
+};
diff --git a/arch/arm/dts/r8a774b1-u-boot.dtsi b/arch/arm/dts/r8a774b1-u-boot.dtsi
new file mode 100644
index 0000000000..6fab78e776
--- /dev/null
+++ b/arch/arm/dts/r8a774b1-u-boot.dtsi
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source extras for U-Boot on RZ/G2 R8A774B1 SoC
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+#include "r8a779x-u-boot.dtsi"
+
+&extalr_clk {
+	u-boot,dm-pre-reloc;
+};
+
+/delete-node/ &audma0;
+/delete-node/ &audma1;
+/delete-node/ &can0;
+/delete-node/ &can1;
+/delete-node/ &canfd;
+/delete-node/ &csi20;
+/delete-node/ &csi40;
+/delete-node/ &du;
+/delete-node/ &fcpf0;
+/delete-node/ &fcpvb0;
+/delete-node/ &fcpvd0;
+/delete-node/ &fcpvd1;
+/delete-node/ &fcpvi0;
+/delete-node/ &hdmi0;
+/delete-node/ &lvds0;
+/delete-node/ &rcar_sound;
+/delete-node/ &sdhi2;
+/delete-node/ &sound_card;
+/delete-node/ &vin0;
+/delete-node/ &vin1;
+/delete-node/ &vin2;
+/delete-node/ &vin3;
+/delete-node/ &vin4;
+/delete-node/ &vin5;
+/delete-node/ &vin6;
+/delete-node/ &vin7;
+/delete-node/ &vspb;
+/delete-node/ &vspd0;
+/delete-node/ &vspd1;
+/delete-node/ &vspi0;
+
+/ {
+	/delete-node/ hdmi0-out;
+};
+
+/ {
+	soc {
+		/delete-node/ fdp1@fe940000;
+	};
+};
diff --git a/arch/arm/mach-rmobile/Kconfig.64 b/arch/arm/mach-rmobile/Kconfig.64
index 2c2c60385d..03b99864ee 100644
--- a/arch/arm/mach-rmobile/Kconfig.64
+++ b/arch/arm/mach-rmobile/Kconfig.64
@@ -104,6 +104,7 @@ config TARGET_EBISU
 config TARGET_HIHOPE_RZG2
 	bool "HiHope RZ/G2 board"
 	imply R8A774A1
+	imply R8A774B1
 	imply SYS_MALLOC_F
 	imply MULTI_DTB_FIT
 	imply MULTI_DTB_FIT_USER_DEFINED_AREA
diff --git a/board/hoperun/hihope-rzg2/hihope-rzg2.c b/board/hoperun/hihope-rzg2/hihope-rzg2.c
index a60529f780..2a61268c69 100644
--- a/board/hoperun/hihope-rzg2/hihope-rzg2.c
+++ b/board/hoperun/hihope-rzg2/hihope-rzg2.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
  * board/hoperun/hihope-rzg2/hihope-rzg2.c
- *     This file is HiHope RZ/G2M board support.
+ *     This file is HiHope RZ/G2[MN] board support.
  *
  * Copyright (C) 2021 Renesas Electronics Corporation
  */
@@ -100,6 +100,10 @@ int board_fit_config_name_match(const char *name)
 	    !strcmp(name, "r8a774a1-hihope-rzg2m-u-boot"))
 		return 0;
 
+	if (is_hoperun_hihope_rzg2_board("hoperun,hihope-rzg2n") &&
+	    !strcmp(name, "r8a774b1-hihope-rzg2n-u-boot"))
+		return 0;
+
 	return -1;
 }
 #endif
diff --git a/configs/hihope_rzg2_defconfig b/configs/hihope_rzg2_defconfig
index bc40445b5e..73245d9cfc 100644
--- a/configs/hihope_rzg2_defconfig
+++ b/configs/hihope_rzg2_defconfig
@@ -32,7 +32,7 @@ CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
-CONFIG_OF_LIST="r8a774a1-hihope-rzg2m-u-boot"
+CONFIG_OF_LIST="r8a774a1-hihope-rzg2m-u-boot r8a774b1-hihope-rzg2n-u-boot"
 CONFIG_MULTI_DTB_FIT_LZO=y
 CONFIG_MULTI_DTB_FIT_USER_DEFINED_AREA=y
 CONFIG_ENV_OVERWRITE=y