diff --git a/target/linux/brcm63xx/base-files/etc/diag.sh b/target/linux/brcm63xx/base-files/etc/diag.sh
index c330674fe333529e29bc23190979f5f1e0f02171..1b0d26d6162ffcca0a5b9decfff737f588af18c8 100644
--- a/target/linux/brcm63xx/base-files/etc/diag.sh
+++ b/target/linux/brcm63xx/base-files/etc/diag.sh
@@ -45,7 +45,8 @@ set_state() {
 	ar1004g)
 		status_led="AR1004G:green:power"
 		;;
-	dsl-274xb-c)
+	dsl-274xb-c|\
+	dsl-274xb-f)
 		status_led="dsl-274xb:green:power"
 		;;
 	dsl-275xb-d)
diff --git a/target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx b/target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx
index a8bf6c621eb7b5a8a5a69d40edbc96c6448bc90d..d6ec53752aa084931c0bf6e87701a12e1a8fcd16 100644
--- a/target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx
+++ b/target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx
@@ -16,6 +16,7 @@ set_preinit_iface() {
 	dgnd3700v1_dgnd3800b |\
 	dsl-2640b-b |\
 	dsl-274xb-c |\
+	dsl-274xb-f |\
 	dsl-275xb-d |\
 	fast2504n |\
 	fast2704v2 |\