[U-Boot] [PATCH] MPC83XX: Fix GPIO configuration

Nick Spence nick.spence at freescale.com
Sat Aug 23 08:52:50 CEST 2008


Set DAT value before DIR values to avoid creating glitches on the
GPIO signals.
---
 cpu/mpc83xx/cpu_init.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c
index 67c9e57..4514dbb 100644
--- a/cpu/mpc83xx/cpu_init.c
+++ b/cpu/mpc83xx/cpu_init.c
@@ -283,12 +283,12 @@ void cpu_init_f (volatile immap_t * im)
 	im->sysconf.lblaw[7].ar = CFG_LBLAWAR7_PRELIM;
 #endif
 #ifdef CFG_GPIO1_PRELIM
-	im->gpio[0].dir = CFG_GPIO1_DIR;
 	im->gpio[0].dat = CFG_GPIO1_DAT;
+	im->gpio[0].dir = CFG_GPIO1_DIR;
 #endif
 #ifdef CFG_GPIO2_PRELIM
-	im->gpio[1].dir = CFG_GPIO2_DIR;
 	im->gpio[1].dat = CFG_GPIO2_DAT;
+	im->gpio[1].dir = CFG_GPIO2_DIR;
 #endif
 }
 
-- 
1.5.2.2



More information about the U-Boot mailing list