ARM: bcm283x: merge BCM2835/BCM2836 directories into mach-bcm283x

BCM2835 (used on Raspberry Pi) and BCM2836 (used on Raspberry Pi 2)
are similar enough.  One of the biggest differences is the ARM
processor.  It is reasonable to collect the source files into a
single place, arch/arm/mach-bcm283x/.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>

arch/arm/Kconfig

@@ -286,13 +286,8 @@ config TARGET_MX35PDK
 	bool "Support mx35pdk"
 	select CPU_ARM1136
 
-config TARGET_RPI
-	bool "Support rpi"
-	select CPU_ARM1176
-
-config TARGET_RPI_2
-	bool "Support rpi_2"
-	select CPU_V7
+config ARCH_BCM283X
+	bool "Broadcom BCM283X family"
 
 config TARGET_INTEGRATORAP_CM946ES
 	bool "Support integratorap_cm946es"
@@ -723,9 +718,9 @@ endchoice
 
 source "arch/arm/mach-at91/Kconfig"
 
-source "arch/arm/mach-davinci/Kconfig"
+source "arch/arm/mach-bcm283x/Kconfig"
 
-source "arch/arm/cpu/arm1176/bcm2835/Kconfig"
+source "arch/arm/mach-davinci/Kconfig"
 
 source "arch/arm/cpu/armv7/exynos/Kconfig"
 
@@ -834,8 +829,6 @@ source "board/palmtreo680/Kconfig"
 source "board/phytec/pcm051/Kconfig"
 source "board/ppcag/bg0900/Kconfig"
 source "board/pxa255_idp/Kconfig"
-source "board/raspberrypi/rpi/Kconfig"
-source "board/raspberrypi/rpi_2/Kconfig"
 source "board/samsung/smdk2410/Kconfig"
 source "board/sandisk/sansa_fuze_plus/Kconfig"
 source "board/scb9328/Kconfig"

arch/arm/Makefile

@@ -5,6 +5,7 @@
 # Machine directory name.  This list is sorted alphanumerically
 # by CONFIG_* macro name.
 machine-$(CONFIG_ARCH_AT91)		+= at91
+machine-$(CONFIG_ARCH_BCM283X)		+= bcm283x
 machine-$(CONFIG_ARCH_DAVINCI)		+= davinci
 machine-$(CONFIG_ARCH_HIGHBANK)		+= highbank
 machine-$(CONFIG_ARCH_KEYSTONE)		+= keystone

arch/arm/cpu/arm1176/Makefile

@@ -10,5 +10,3 @@
 
 extra-y	= start.o
 obj-y	= cpu.o
-
-obj-$(CONFIG_BCM2835) += bcm2835/

arch/arm/cpu/arm1176/bcm2835/Kconfig

-if TARGET_RPI || TARGET_RPI_2
-
-config DM
-	default y
-
-config DM_SERIAL
-	default y
-
-config DM_GPIO
-	default y
-
-endif

arch/arm/cpu/armv7/Makefile

@@ -39,7 +39,6 @@ endif
 
 obj-$(if $(filter am33xx,$(SOC)),y) += am33xx/
 obj-$(if $(filter armada-xp,$(SOC)),y) += armada-xp/
-obj-$(CONFIG_BCM2835) += bcm2835/
 obj-$(if $(filter bcm281xx,$(SOC)),y) += bcm281xx/
 obj-$(if $(filter bcmcygnus,$(SOC)),y) += bcmcygnus/
 obj-$(if $(filter bcmnsp,$(SOC)),y) += bcmnsp/

arch/arm/cpu/armv7/bcm2835/Makefile

-#
-# (C) Copyright 2012 Stephen Warren
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-src_dir := ../../arm1176/bcm2835/
-
-obj-y	:=
-obj-y	+= $(src_dir)/init.o
-obj-y	+= $(src_dir)/reset.o
-obj-y	+= $(src_dir)/timer.o
-obj-y	+= $(src_dir)/mbox.o

arch/arm/mach-bcm283x/Kconfig

+menu "Broadcom BCM283X family"
+	depends on ARCH_BCM283X
+
+choice
+	prompt "Broadcom BCM283X board select"
+
+config TARGET_RPI
+	bool "Raspberry Pi"
+	select CPU_ARM1176
+
+config TARGET_RPI_2
+	bool "Raspberry Pi 2"
+	select CPU_V7
+
+endchoice
+
+config DM
+	default y
+
+config DM_SERIAL
+	default y
+
+config DM_GPIO
+	default y
+
+config SYS_BOARD
+	default "rpi" if TARGET_RPI
+	default "rpi_2" if TARGET_RPI_2
+
+config SYS_VENDOR
+	default "raspberrypi"
+
+config SYS_SOC
+	default "bcm2835"
+
+config SYS_CONFIG_NAME
+	default "rpi" if TARGET_RPI
+	default "rpi_2" if TARGET_RPI_2
+
+endmenu

arch/arm/cpu/arm1176/bcm2835/Makefile → arch/arm/mach-bcm283x/Makefile

@@ -4,5 +4,5 @@
 # SPDX-License-Identifier:	GPL-2.0
 #
 
-obj-y	:= lowlevel_init.o
+obj-$(CONFIG_TARGET_RPI) += lowlevel_init.o
 obj-y	+= init.o reset.o timer.o mbox.o

board/raspberrypi/rpi/Kconfig

-if TARGET_RPI
-
-config SYS_BOARD
-	default "rpi"
-
-config SYS_VENDOR
-	default "raspberrypi"
-
-config SYS_SOC
-	default "bcm2835"
-
-config SYS_CONFIG_NAME
-	default "rpi"
-
-endif

board/raspberrypi/rpi_2/Kconfig

-if TARGET_RPI_2
-
-config SYS_BOARD
-	default "rpi_2"
-
-config SYS_VENDOR
-	default "raspberrypi"
-
-config SYS_SOC
-	default "bcm2835"
-
-config SYS_CONFIG_NAME
-	default "rpi_2"
-
-endif

configs/rpi_2_defconfig

 CONFIG_ARM=y
+CONFIG_ARCH_BCM283X=y
 CONFIG_TARGET_RPI_2=y

configs/rpi_defconfig

 CONFIG_ARM=y
+CONFIG_ARCH_BCM283X=y
 CONFIG_TARGET_RPI=y