[rtems commit] bsp/mpc55xx: Round PLL divider up
Sebastian Huber
sebh at rtems.org
Fri Jul 5 13:56:38 UTC 2013
Module: rtems
Branch: master
Commit: c97d3dd42b3c6e0cc3a5dc5966790a79edefb595
Changeset: http://git.rtems.org/rtems/commit/?id=c97d3dd42b3c6e0cc3a5dc5966790a79edefb595
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Tue Jul 2 15:13:54 2013 +0200
bsp/mpc55xx: Round PLL divider up
---
.../mpc55xxevb/startup/start-config-clock.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-clock.c b/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-clock.c
index cfb48a6..57314d2 100644
--- a/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-clock.c
+++ b/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-clock.c
@@ -48,7 +48,8 @@ const mpc55xx_clock_config mpc55xx_start_config_clock [1] = { {
#define EMFD_VAL (MPC55XX_FMPLL_MFD-16)
#define VCO_CLK_REF (MPC55XX_REFERENCE_CLOCK/(EPREDIV_VAL+1))
#define VCO_CLK_OUT (VCO_CLK_REF*(EMFD_VAL+16))
- #define ERFD_VAL ((VCO_CLK_OUT/MPC55XX_SYSTEM_CLOCK)-1)
+ #define ERFD_VAL \
+ (((VCO_CLK_OUT + MPC55XX_SYSTEM_CLOCK - 1) / MPC55XX_SYSTEM_CLOCK)-1)
.esyncr2_tmp = {
.B = {
More information about the vc
mailing list