BCM270X_DT: Move the overlays into a subdirectory, adding the README

arch/arm/boot/dts/Makefile

@@ -13,36 +13,7 @@ ifeq ($(CONFIG_BCM2709_DT),y)
    RPI_DT_OVERLAYS=y
 endif
 
-dtb-$(RPI_DT_OVERLAYS) += ads7846-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += ds1307-rtc-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += enc28j60-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += i2c-rtc-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += hifiberry-dac-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += hifiberry-dacplus-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += hifiberry-digi-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += hifiberry-amp-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += hy28a-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += hy28b-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += rpi-dac-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += rpi-proto-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += lirc-rpi-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += mmc-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += mz61581-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += pcf2127-rtc-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += pcf8523-rtc-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += pitft28-resistive-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += rpi-display-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += sdhost-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += tinylcd35-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += w1-gpio-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += w1-gpio-pullup-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += spi-bcm2835-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += spi-bcm2708-overlay.dtb
+subdir-$(RPI_DT_OVERLAYS)  += overlays
 
 dtb-$(CONFIG_MACH_ASM9260) += \
 	alphascale-asm9260-devkit.dtb

arch/arm/boot/dts/overlays/Makefile

@@ -0,0 +1,51 @@
+ifeq ($(CONFIG_OF),y)
+
+# Overlays for the Raspberry Pi platform
+
+ifeq ($(CONFIG_BCM2708_DT),y)
+   RPI_DT_OVERLAYS=y
+endif
+ifeq ($(CONFIG_BCM2709_DT),y)
+   RPI_DT_OVERLAYS=y
+endif
+
+dtb-$(RPI_DT_OVERLAYS) += ads7846-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += enc28j60-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += hifiberry-amp-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += hifiberry-dac-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += hifiberry-dacplus-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += hifiberry-digi-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += hy28a-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += hy28b-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += i2c-rtc-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += lirc-rpi-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += mmc-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += mz61581-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += pitft28-resistive-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += rpi-dac-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += rpi-display-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += rpi-proto-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += sdhost-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi-bcm2708-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi-bcm2835-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += tinylcd35-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += w1-gpio-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += w1-gpio-pullup-overlay.dtb
+
+targets += dtbs dtbs_install
+targets += $(dtb-y)
+
+endif
+
+always		:= $(dtb-y)
+clean-files	:= *.dtb
+
+# Enable fixups to support overlays on BCM2708 platforms
+ifeq ($(RPI_DT_OVERLAYS),y)
+	DTC_FLAGS ?= -@
+endif