arm: rmobile: Add HopeRun HiHope RZ/G2M board support

The HiHope RZ/G2M board from HopeRun consists of main board
(HopeRun HiHope RZ/G2M main board) and sub board(HopeRun
HiHope RZ/G2M sub board). The HiHope RZ/G2M sub board sits
below the HiHope RZ/G2M main board.

This patch adds the required board support to boot HopeRun HiHope
RZ/G2M board.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index c671082..142e2ad 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -822,6 +822,7 @@
 	r8a774a1-beacon-rzg2m-kit.dtb \
 	r8a774b1-beacon-rzg2n-kit.dtb \
 	r8a774e1-beacon-rzg2h-kit.dtb \
+	r8a774a1-hihope-rzg2m-u-boot.dtb \
 	r8a77950-ulcb-u-boot.dtb \
 	r8a77950-salvator-x-u-boot.dtb \
 	r8a77960-ulcb-u-boot.dtb \
diff --git a/arch/arm/mach-rmobile/Kconfig.64 b/arch/arm/mach-rmobile/Kconfig.64
index b95c8e8..2c2c603 100644
--- a/arch/arm/mach-rmobile/Kconfig.64
+++ b/arch/arm/mach-rmobile/Kconfig.64
@@ -4,6 +4,8 @@
 
 config R8A774A1
 	bool "Renesas SoC R8A774A1"
+	imply CLK_R8A774A1
+	imply PINCTRL_PFC_R8A774A1
 
 config R8A774B1
 	bool "Renesas SoC R8A774B1"
@@ -99,6 +101,15 @@
 	help
           Support for Renesas R-Car Gen3 Ebisu platform
 
+config TARGET_HIHOPE_RZG2
+	bool "HiHope RZ/G2 board"
+	imply R8A774A1
+	imply SYS_MALLOC_F
+	imply MULTI_DTB_FIT
+	imply MULTI_DTB_FIT_USER_DEFINED_AREA
+	help
+          Support for RZG2 HiHope platform
+
 config TARGET_SALVATOR_X
 	bool "Salvator-X board"
 	imply R8A7795
@@ -133,12 +144,15 @@
 source "board/renesas/salvator-x/Kconfig"
 source "board/renesas/ulcb/Kconfig"
 source "board/beacon/beacon-rzg2m/Kconfig"
+source "board/hoperun/hihope-rzg2/Kconfig"
 
 config MULTI_DTB_FIT_UNCOMPRESS_SZ
+	default 0x80000 if TARGET_HIHOPE_RZG2
 	default 0x80000 if TARGET_SALVATOR_X
 	default 0x80000 if TARGET_ULCB
 
 config MULTI_DTB_FIT_USER_DEF_ADDR
+	default 0x49000000 if TARGET_HIHOPE_RZG2
 	default 0x49000000 if TARGET_SALVATOR_X
 	default 0x49000000 if TARGET_ULCB