diff --git a/sys/arm/at91/at91.c b/sys/arm/at91/at91.c
index 8f9177b2c1c..a4747eadd57 100644
--- a/sys/arm/at91/at91.c
+++ b/sys/arm/at91/at91.c
@@ -122,7 +122,7 @@ struct bus_space at91_bs_tag = {
 	NULL,
 
 	/* read region */
-	NULL,
+	generic_bs_rr_1,
 	generic_armv4_bs_rr_2,
 	generic_bs_rr_4,
 	NULL,
diff --git a/sys/arm/xscale/i80321/i80321_space.c b/sys/arm/xscale/i80321/i80321_space.c
index 4723a14f7f7..411005adb04 100644
--- a/sys/arm/xscale/i80321/i80321_space.c
+++ b/sys/arm/xscale/i80321/i80321_space.c
@@ -99,7 +99,7 @@ const struct bus_space i80321_bs_tag_template = {
 	NULL,
 
 	/* read region */
-	NULL,
+	generic_bs_rr_1,
 	generic_armv4_bs_rr_2,
 	generic_bs_rr_4,
 	NULL,