diff --git a/arch/blackfin/include/asm/serial.h b/arch/blackfin/include/asm/serial.h
index 994dd869558c..3a47606c858b 100644
--- a/arch/blackfin/include/asm/serial.h
+++ b/arch/blackfin/include/asm/serial.h
@@ -3,3 +3,4 @@
  */
 
 #define SERIAL_EXTRA_IRQ_FLAGS IRQF_TRIGGER_HIGH
+#define BASE_BAUD (1843200 / 16)