diff --git a/board/amcc/walnut/flash.c b/board/amcc/walnut/flash.c
index d363564..3dc6aab 100644
--- a/board/amcc/walnut/flash.c
+++ b/board/amcc/walnut/flash.c
@@ -102,27 +102,27 @@
 		/* Re-do sizing to get full correct info */
 
 		if (size_b1) {
-			mtdcr(ebccfga, pb0cr);
-			pbcr = mfdcr(ebccfgd);
-			mtdcr(ebccfga, pb0cr);
+			mtdcr(EBC0_CFGADDR, PB0CR);
+			pbcr = mfdcr(EBC0_CFGDATA);
+			mtdcr(EBC0_CFGADDR, PB0CR);
 			base_b1 = -size_b1;
 			pbcr =
 			    (pbcr & 0x0001ffff) | base_b1 |
 			    (((size_b1 / 1024 / 1024) - 1) << 17);
-			mtdcr(ebccfgd, pbcr);
-			/*          printf("pb1cr = %x\n", pbcr); */
+			mtdcr(EBC0_CFGDATA, pbcr);
+			/*          printf("PB1CR = %x\n", pbcr); */
 		}
 
 		if (size_b0) {
-			mtdcr(ebccfga, pb1cr);
-			pbcr = mfdcr(ebccfgd);
-			mtdcr(ebccfga, pb1cr);
+			mtdcr(EBC0_CFGADDR, PB1CR);
+			pbcr = mfdcr(EBC0_CFGDATA);
+			mtdcr(EBC0_CFGADDR, PB1CR);
 			base_b0 = base_b1 - size_b0;
 			pbcr =
 			    (pbcr & 0x0001ffff) | base_b0 |
 			    (((size_b0 / 1024 / 1024) - 1) << 17);
-			mtdcr(ebccfgd, pbcr);
-			/*            printf("pb0cr = %x\n", pbcr); */
+			mtdcr(EBC0_CFGDATA, pbcr);
+			/*            printf("PB0CR = %x\n", pbcr); */
 		}
 
 		size_b0 = flash_get_size((vu_long *) base_b0, &flash_info[0]);