diff --git a/cpu/mpc85xx/fdt.c b/cpu/mpc85xx/fdt.c
index 61e0fb0..efb6518 100644
--- a/cpu/mpc85xx/fdt.c
+++ b/cpu/mpc85xx/fdt.c
@@ -294,7 +294,7 @@
 	fdt_add_enet_stashing(blob);
 
 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
-		"timebase-frequency", bd->bi_busfreq / 8, 1);
+		"timebase-frequency", get_tbclk(), 1);
 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
 		"bus-frequency", bd->bi_busfreq, 1);
 	get_sys_info(&sysinfo);