diff --git a/c/src/lib/libbsp/powerpc/gen83xx/ChangeLog b/c/src/lib/libbsp/powerpc/gen83xx/ChangeLog
index 898132d9f5..0b93b0b0cb 100644
--- a/c/src/lib/libbsp/powerpc/gen83xx/ChangeLog
+++ b/c/src/lib/libbsp/powerpc/gen83xx/ChangeLog
@@ -1,4 +1,8 @@
-2008-09-05	Ralf Corsépius <ralf.corsepius@rtems.org>
+2008-09-05	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	* startup/bspstart.c: Derive time base clicks from bus frequency.
+
+08-09-05	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* console/console.c: Convert to "bool".
 
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c b/c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c
index 32cb9b68a0..ea5df3e875 100644
--- a/c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c
+++ b/c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c
@@ -148,7 +148,7 @@ void bsp_start( void)
 
 #ifdef HAS_UBOOT
   BSP_bus_frequency = mpc83xx_uboot_board_info.bi_busfreq;
-  bsp_clicks_per_usec = mpc83xx_uboot_board_info.bi_intfreq / 8000000;
+  bsp_clicks_per_usec = mpc83xx_uboot_board_info.bi_busfreq / 4000000;
 #else /* HAS_UBOOT */
   BSP_bus_frequency = BSP_CLKIN_FRQ * BSP_SYSPLL_MF / BSP_SYSPLL_CKID;
   bsp_clicks_per_usec = BSP_bus_frequency / 1000000;