ARM: rmobile: Turn R-Car V3U into R-Car Gen4

Despite the name, R-Car V3U is the first member of the R-Car Gen4
family [1]. Hence reflect this in related files, select appropriate
configuration options and split DT build into its own GEN4 entry.

[1] https://www.renesas.com/us/en/products/automotive-products/automotive-system-chips-socs/r-car-v3u-best-class-r-car-v3u-asil-d-system-chip-automated-driving

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Deduplicate DTC_FLAGS addition using RCAR_64 symbol
        Update commit message]

arch/arm/dts/Makefile

@@ -1044,10 +1044,12 @@ dtb-$(CONFIG_RCAR_GEN3) += \
 	r8a77970-eagle-u-boot.dtb \
 	r8a77980-condor-u-boot.dtb \
 	r8a77990-ebisu-u-boot.dtb \
-	r8a77995-draak-u-boot.dtb \
+	r8a77995-draak-u-boot.dtb
+
+dtb-$(CONFIG_RCAR_GEN4) += \
 	r8a779a0-falcon-u-boot.dtb
 
-ifdef CONFIG_RCAR_GEN3
+ifdef CONFIG_RCAR_64
 DTC_FLAGS += -R 4 -p 0x1000
 endif
 

arch/arm/mach-rmobile/Kconfig.rcar3

@@ -70,12 +70,6 @@ config R8A77995
 	imply CLK_R8A77995
 	imply PINCTRL_PFC_R8A77995
 
-config R8A779A0
-	bool "Renesas SoC R8A779A0"
-	select GICV3
-	imply CLK_R8A779A0
-	imply PINCTRL_PFC_R8A779A0
-
 config RZ_G2
 	bool "Renesas ARM SoCs RZ/G2 (64bit)"
 
@@ -123,12 +117,6 @@ config TARGET_EBISU
 	help
           Support for Renesas R-Car Gen3 Ebisu platform
 
-config TARGET_FALCON
-	bool "Falcon board"
-	imply R8A779A0
-	help
-          Support for Renesas R-Car Gen3 Falcon platform
-
 config TARGET_HIHOPE_RZG2
 	bool "HiHope RZ/G2 board"
 	imply MULTI_DTB_FIT
@@ -176,7 +164,6 @@ source "board/renesas/condor/Kconfig"
 source "board/renesas/draak/Kconfig"
 source "board/renesas/eagle/Kconfig"
 source "board/renesas/ebisu/Kconfig"
-source "board/renesas/falcon/Kconfig"
 source "board/renesas/salvator-x/Kconfig"
 source "board/renesas/ulcb/Kconfig"
 source "board/beacon/beacon-rzg2m/Kconfig"

arch/arm/mach-rmobile/Kconfig.rcar4

@@ -1,8 +1,27 @@
 if RCAR_GEN4
 
+menu "Select Target SoC"
+
+config R8A779A0
+	bool "Renesas SoC R8A779A0"
+	select GICV3
+	imply CLK_R8A779A0
+	imply PINCTRL_PFC_R8A779A0
+
+endmenu
+
 choice
 	prompt "Renesas ARM64 SoCs board select"
 	optional
+
+config TARGET_FALCON
+	bool "Falcon board"
+	imply R8A779A0
+	help
+          Support for Renesas R-Car Gen3 Falcon platform
+
 endchoice
 
+source "board/renesas/falcon/Kconfig"
+
 endif

configs/r8a779a0_falcon_defconfig

@@ -10,7 +10,7 @@ CONFIG_ENV_SECT_SIZE=0x40000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="r8a779a0-falcon-u-boot"
 CONFIG_SPL_TEXT_BASE=0xe6338000
-CONFIG_RCAR_GEN3=y
+CONFIG_RCAR_GEN4=y
 CONFIG_TARGET_FALCON=y
 CONFIG_SPL_STACK=0xe6304000
 CONFIG_SYS_CLK_FREQ=16666666

include/configs/falcon.h

@@ -9,17 +9,7 @@
 #ifndef __FALCON_H
 #define __FALCON_H
 
-#include "rcar-gen3-common.h"
+#include "rcar-gen4-common.h"
-
-/*
- * Generic Interrupt Controller Definitions.  Undefine v2 locations and define
- * v3 locations.
- */
-#undef GICD_BASE
-#undef GICC_BASE
-#undef GICR_BASE
-#define GICD_BASE	0xF1000000
-#define GICR_BASE	0xF1060000
 
 /* Board Clock */
 /* XTAL_CLK : 16.66MHz */