devicetree: Add support for DT overlays with RPi bootloader

Compile overlay device trees and put them in 'overlays/' folder
on sdcard RPi boot partition.

Change-Id: I3da0032b3c2618165008eec1fc94e97824d09099
Signed-off-by: Francois Muller <francois@concept-embarque.fr>

1 files changed, 16 insertions, 1 deletions

diff --git a/conf/machine/raspberrypi.conf b/conf/machine/raspberrypi.conf
index 01021ca..af0907e 100644
--- a/conf/machine/raspberrypi.conf
+++ b/conf/machine/raspberrypi.conf
@@ -25,7 +25,22 @@ XSERVER = " \
 KERNEL_IMAGETYPE ?= "Image"
 
 # Really supported starting from linux-rapsberry 3.18.y only !
-#KERNEL_DEVICETREE ?= "bcm2708-rpi-b.dtb bcm2708-rpi-b-plus.dtb"
+#KERNEL_DEVICETREE ?= " \
+#       bcm2708-rpi-b.dtb \
+#       bcm2708-rpi-b-plus.dtb \
+#       ds1307-rtc-overlay.dtb \
+#       hifiberry-amp-overlay.dtb \
+#       hifiberry-dac-overlay.dtb \
+#       hifiberry-dacplus-overlay.dtb \
+#       hifiberry-digi-overlay.dtb \
+#       iqaudio-dac-overlay.dtb \
+#       iqaudio-dacplus-overlay.dtb \
+#       lirc-rpi-overlay.dtb \
+#       pcf8523-rtc-overlay.dtb \
+#       pps-gpio-overlay.dtb \
+#       w1-gpio-overlay.dtb \
+#       w1-gpio-pullup-overlay.dtb \
+#       "
 
 MACHINE_FEATURES = "kernel26 apm usbhost keyboard vfat ext2 screen touchscreen alsa bluetooth wifi sdio"