diff --git a/include/configs/tuxa1.h b/include/configs/tuxa1.h
index 815c260..2d9af3f 100644
--- a/include/configs/tuxa1.h
+++ b/include/configs/tuxa1.h
@@ -67,8 +67,8 @@
 				 OR_GPCM_CSNT | \
 				 OR_GPCM_ACS_DIV4 | \
 				 OR_GPCM_SCY_2 | \
-				 (OR_GPCM_TRLX & \
-				 (~OR_GPCM_EHTR)) |  /* EHTR = 0 */ \
+				 OR_GPCM_TRLX_SET | \
+				 OR_GPCM_EHTR_CLEAR | \
 				 OR_GPCM_EAD)
 /*
  * PINC2 on the local bus CS3
@@ -85,11 +85,10 @@
 
 #define CONFIG_SYS_OR3_PRELIM	(MEG_TO_AM(CONFIG_SYS_PINC2_SIZE) | \
 				 OR_GPCM_CSNT | \
-				 (OR_GPCM_ACS_DIV2 & /* ACS = 11 */ \
-				 (~OR_GPCM_XACS)) |  /* XACS = 0 */ \
-				 (OR_GPCM_SCY_2 & \
-				 (~OR_GPCM_EHTR)) |  /* EHTR = 0 */ \
-				 OR_GPCM_TRLX)
+				 OR_GPCM_ACS_DIV2 | \
+				 OR_GPCM_SCY_2 | \
+				 OR_GPCM_TRLX_SET | \
+				 OR_GPCM_EHTR_CLEAR)
 
 #define CONFIG_SYS_MAMR		(MxMR_GPL_x4DIS | \
 				 0x0000c000 | \