ARM: davinci: support multiplatform build for ARM v5

Add modifications necessary to make davinci part of the ARM v5
multiplatform build.

Move the arch-specific configuration out of arch/arm/Kconfig and
into mach-davinci/Kconfig. Remove the sub-menu for DaVinci
implementations (they'll be visible directly under the system type.
Select all necessary options not already selected by ARCH_MULTI_V5.
Update davinci_all_defconfig. Explicitly include the mach-specific
headers in mach-davinci/Makefile.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/Kconfig

@@ -509,28 +509,6 @@ config ARCH_S3C24XX
 	  (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
 	  Samsung SMDK2410 development board (and derivatives).
 
-config ARCH_DAVINCI
-	bool "TI DaVinci"
-	select ARCH_HAS_HOLES_MEMORYMODEL
-	select COMMON_CLK
-	select CPU_ARM926T
-	select DAVINCI_TIMER
-	select GENERIC_ALLOCATOR
-	select GENERIC_CLOCKEVENTS
-	select GENERIC_IRQ_CHIP
-	select GENERIC_IRQ_MULTI_HANDLER
-	select GPIOLIB
-	select HAVE_IDE
-	select PM_GENERIC_DOMAINS if PM
-	select PM_GENERIC_DOMAINS_OF if PM && OF
-	select REGMAP_MMIO
-	select RESET_CONTROLLER
-	select SPARSE_IRQ
-	select USE_OF
-	select ZONE_DMA
-	help
-	  Support for TI's DaVinci platform.
-
 config ARCH_OMAP1
 	bool "TI OMAP1"
 	depends on MMU

arch/arm/configs/davinci_all_defconfig

@@ -17,6 +17,9 @@ CONFIG_MODVERSIONS=y
 CONFIG_PARTITION_ADVANCED=y
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
+CONFIG_ARCH_MULTIPLATFORM=y
+CONFIG_ARCH_MULTI_V7=n
+CONFIG_ARCH_MULTI_V5=y
 CONFIG_ARCH_DAVINCI=y
 CONFIG_ARCH_DAVINCI_DM644x=y
 CONFIG_ARCH_DAVINCI_DM355=y
@@ -129,9 +132,11 @@ CONFIG_SPI=y
 CONFIG_SPI_DAVINCI=m
 CONFIG_PINCTRL_DA850_PUPD=m
 CONFIG_PINCTRL_SINGLE=y
+CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_PCA953X=y
 CONFIG_GPIO_PCA953X_IRQ=y
+CONFIG_RESET_CONTROLLER=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_GPIO=y
 CONFIG_SYSCON_REBOOT_MODE=m

arch/arm/mach-davinci/Kconfig

@@ -1,11 +1,22 @@
 # SPDX-License-Identifier: GPL-2.0
+
+menuconfig ARCH_DAVINCI
+	bool "TI DaVinci"
+	depends on ARCH_MULTI_V5
+	select DAVINCI_TIMER
+	select ZONE_DMA
+	select ARCH_HAS_HOLES_MEMORYMODEL
+	select PM_GENERIC_DOMAINS if PM
+	select PM_GENERIC_DOMAINS_OF if PM && OF
+	select REGMAP_MMIO
+	select HAVE_IDE
+	select PINCTRL_SINGLE
+
 if ARCH_DAVINCI
 
 config ARCH_DAVINCI_DMx
 	bool
 
-menu "TI DaVinci Implementations"
-
 comment "DaVinci Core Type"
 
 config ARCH_DAVINCI_DM644x
@@ -225,6 +236,4 @@ config DAVINCI_MUX_WARNINGS
 	  to change the pin multiplexing setup. When there are no warnings
 	  printed, it's safe to deselect DAVINCI_MUX for your product.
 
-endmenu
-
 endif

arch/arm/mach-davinci/Makefile

@@ -4,6 +4,8 @@
 #
 #
 
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
+
 # Common objects
 obj-y 					:= time.o serial.o usb.o \
 					   common.o sram.o