diff --git a/configs/efm32-g8xx-stk/README.txt b/configs/efm32-g8xx-stk/README.txt
index d84035e2b7e..bd0c549a4ed 100644
--- a/configs/efm32-g8xx-stk/README.txt
+++ b/configs/efm32-g8xx-stk/README.txt
@@ -88,8 +88,10 @@ Serial Console
      US2_TX #0 PC2  UIF_LED2
      US2_TX #1 PB3  LCD_PB3, LCD_SEG20
     ------- -- ----
+      U0_RX #0 PF7  LCD_PF7, LCD_SEG25
       U0_RX #1 PE1  **AVAILABLE at TP130** (if BC_EN is low, see below)
       U0_RX #2 PA4  LCD_PA4, LCD_SEG17
+      U0_RX #3 PC15 MCUDBG_TDO_SWO
 
       U0_TX #0 PF6  LCD_PF6, LCD_SEG24
       U0_TX #1 PE0  **AVAILABLE at TP129** (if BC_EN is low, see below)
diff --git a/configs/efm32-g8xx-stk/include/board.h b/configs/efm32-g8xx-stk/include/board.h
index 8c0b424418c..2bcddbb71cc 100644
--- a/configs/efm32-g8xx-stk/include/board.h
+++ b/configs/efm32-g8xx-stk/include/board.h
@@ -45,6 +45,7 @@
 #include <stdbool.h>
 
 #include "chip/efm32_cmu.h"
+#include "chip/efm32_usart.h"
 
 /****************************************************************************
  * Pre-Processor Definitions
@@ -193,6 +194,15 @@
 #define LED_ASSERTION     6  /* LED1 + LED2 + LED3 */
 #define LED_PANIC         7  /* N/C  + N/C  + N/C + LED4 */
 
+/* Pin routing **************************************************************/
+/* UART0:
+ *
+ *   U0_RX #1 PE1  **AVAILABLE at TP130**
+ *   U0_TX #1 PE0  **AVAILABLE at TP129**
+ */
+
+#define BOARD_UART0_ROUTE_LOCATION _USART_ROUTE_LOCATION_LOC1
+
 /****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/