diff --git a/meta-raspberrypi/conf/machine/include/rpi-base.inc b/meta-raspberrypi/conf/machine/include/rpi-base.inc
index 18368c6..ac945f6 100644
--- a/meta-raspberrypi/conf/machine/include/rpi-base.inc
+++ b/meta-raspberrypi/conf/machine/include/rpi-base.inc
@@ -18,46 +18,54 @@
     overlays/at86rf233.dtbo \
     overlays/disable-bt.dtbo \
     overlays/dwc2.dtbo \
+    overlays/gpio-ir.dtbo \
+    overlays/gpio-ir-tx.dtbo \
     overlays/gpio-key.dtbo \
     overlays/hifiberry-amp.dtbo \
     overlays/hifiberry-dac.dtbo \
     overlays/hifiberry-dacplus.dtbo \
     overlays/hifiberry-digi.dtbo \
+    overlays/justboom-both.dtbo \
+    overlays/justboom-dac.dtbo \
+    overlays/justboom-digi.dtbo \
     overlays/i2c-rtc.dtbo \
+    overlays/imx219.dtbo \
     overlays/iqaudio-dac.dtbo \
     overlays/iqaudio-dacplus.dtbo \
-    overlays/miniuart-bt.dtbo \
     overlays/mcp2515-can0.dtbo \
     overlays/mcp2515-can1.dtbo \
+    overlays/miniuart-bt.dtbo \
     overlays/pitft22.dtbo \
-    overlays/pitft28-resistive.dtbo \
     overlays/pitft28-capacitive.dtbo \
+    overlays/pitft28-resistive.dtbo \
     overlays/pitft35-resistive.dtbo \
     overlays/pps-gpio.dtbo \
     overlays/rpi-ft5406.dtbo \
     overlays/rpi-poe.dtbo \
-    overlays/vc4-kms-v3d.dtbo \
     overlays/vc4-fkms-v3d.dtbo \
-    overlays/w1-gpio-pullup.dtbo \
+    overlays/vc4-kms-v3d.dtbo \
     overlays/w1-gpio.dtbo \
-    overlays/gpio-ir.dtbo \
-    overlays/gpio-ir-tx.dtbo \
-    overlays/imx219.dtbo \
+    overlays/w1-gpio-pullup.dtbo \
     "
 
 RPI_KERNEL_DEVICETREE ?= " \
+    bcm2708-rpi-zero.dtb \
     bcm2708-rpi-zero-w.dtb \
     bcm2708-rpi-b.dtb \
+    bcm2708-rpi-b-rev1.dtb \
     bcm2708-rpi-b-plus.dtb \
     bcm2709-rpi-2-b.dtb \
+    bcm2710-rpi-2-b.dtb \
     bcm2710-rpi-3-b.dtb \
     bcm2710-rpi-3-b-plus.dtb \
     bcm2711-rpi-4-b.dtb \
+    bcm2711-rpi-400.dtb \
     bcm2708-rpi-cm.dtb \
     bcm2710-rpi-cm3.dtb \
+    bcm2711-rpi-cm4.dtb \
     "
 
-KERNEL_DEVICETREE ?= " \
+KERNEL_DEVICETREE ??= " \
     ${RPI_KERNEL_DEVICETREE} \
     ${RPI_KERNEL_DEVICETREE_OVERLAYS} \
     "