diff --git a/libcpu/arm/cortex-a/start_gcc.S b/libcpu/arm/cortex-a/start_gcc.S
index 0f4ff58364676d137fc4877eb7c070de61aa0a34..7464ba616107cce6f145255fc8e9001ddb1243be 100644
--- a/libcpu/arm/cortex-a/start_gcc.S
+++ b/libcpu/arm/cortex-a/start_gcc.S
@@ -51,6 +51,11 @@ _reset:
     /* set the cpu to SVC32 mode and disable interrupt */
     cps #Mode_SVC
 
+    /* disable the data alignment check */
+    mrc p15, 0, r1, c1, c0, 0
+    bic r1, #(1<<1)
+    mcr p15, 0, r1, c1, c0, 0
+
     /* setup stack */
     bl      stack_setup