diff --git a/debian/changelog b/debian/changelog
index ea2284f82..637c49d90 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,8 +1,13 @@
 linux (4.3-1~exp2) UNRELEASED; urgency=medium
 
+  [ Ben Hutchings ]
   * qxl: Enable by default (Closes: #779515)
   * mv643xx_eth: Re-enable TSO, fixed upstream in 4.3
 
+  [ Ian Campbell ]
+  * [armel/orion5x] Enable Device Tree for orion5x. Patch from Roger Shimizu
+    (Closes: #803159)
+
  -- Ben Hutchings <ben@decadent.org.uk>  Sat, 07 Nov 2015 14:18:48 +0000
 
 linux (4.3-1~exp1) experimental; urgency=medium
diff --git a/debian/config/armel/config.orion5x b/debian/config/armel/config.orion5x
index a7f4888d2..1e4703ffb 100644
--- a/debian/config/armel/config.orion5x
+++ b/debian/config/armel/config.orion5x
@@ -8,6 +8,8 @@ CONFIG_PCI=y
 CONFIG_UACCESS_WITH_MEMCPY=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ATAG_DTB_COMPAT=y
 CONFIG_CMDLINE=""
 # CONFIG_XIP_KERNEL is not set
 CONFIG_ATAGS_PROC=y
@@ -23,6 +25,7 @@ CONFIG_VFP=y
 ##
 CONFIG_MACH_DB88F5281=y
 CONFIG_MACH_RD88F5182=y
+CONFIG_MACH_RD88F5182_DT=y
 CONFIG_MACH_KUROBOX_PRO=y
 CONFIG_MACH_DNS323=y
 CONFIG_MACH_TS209=y
@@ -264,6 +267,7 @@ CONFIG_MTD=y
 # CONFIG_MTD_REDBOOT_PARTS is not set
 CONFIG_MTD_CMDLINE_PARTS=y
 # CONFIG_MTD_AFS_PARTS is not set
+CONFIG_MTD_OF_PARTS=y
 CONFIG_MTD_BLOCK=y
 CONFIG_FTL=m
 CONFIG_NFTL=m
@@ -318,6 +322,7 @@ CONFIG_MTD_CFI_STAA=m
 ## file: drivers/mtd/maps/Kconfig
 ##
 # CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP_OF=y
 # CONFIG_MTD_IMPA7 is not set
 # CONFIG_MTD_INTEL_VR_NOR is not set
 # CONFIG_MTD_PLATRAM is not set
@@ -486,6 +491,11 @@ CONFIG_RTC_DRV_S35390A=y
 ##
 # CONFIG_SSB is not set
 
+##
+## file: drivers/tty/serial/Kconfig
+##
+CONFIG_SERIAL_OF_PLATFORM=y
+
 ##
 ## file: drivers/tty/serial/8250/Kconfig
 ##