--- /dev/null
+#!/bin/sh
+
+[ "$DSL_NOTIFICATION_TYPE" = "DSL_STATUS" ] && \
+[ "$DSL_TC_LAYER_STATUS" = "EFM" ] && \
+! grep -q "ltq_ptm_ar9\|ltq_ptm_ase\|ltq_ptm_danube" /proc/modules || exit 0
+
+logger -p daemon.notice -t "dsl-notify" "Switching to TC-Layer EFM/PTM"
+
+if grep -q "ltq_atm_ar9\|ltq_atm_ase\|ltq_atm_danube" /proc/modules ; then
+ logger -p daemon.notice -t "dsl-notify" "Loading EFM/PTM driver while ATM driver is loaded is not possible. Reboot is needed."
+ exit
+fi
+
+case "$(strings /proc/device-tree/compatible)" in
+*lantiq,ar9*)
+ soc="ar9"
+ ;;
+*lantiq,ase*)
+ soc="ase"
+ ;;
+*lantiq,danube*)
+ soc="danube"
+ ;;
+*)
+ logger -p daemon.notice -t "dsl-notify" "Unsupported SoC"
+ exit
+esac
+
+modprobe ltq_ptm_${soc}