diff --git a/arch/tricore/src/tc397/chip.h b/arch/tricore/src/tc397/chip.h
index 3fe0c891a6b..1521ff42374 100644
--- a/arch/tricore/src/tc397/chip.h
+++ b/arch/tricore/src/tc397/chip.h
@@ -27,4 +27,7 @@
  * Included Files
  ****************************************************************************/
 
+#define UART_PIN_RX IfxAsclin0_RXA_P14_1_IN     /* UART receive port pin  */
+#define UART_PIN_TX IfxAsclin0_TX_P14_0_OUT     /* UART transmit port pin */
+
 #endif /* __ARCH_TRICORE_SRC_TC397_CHIP_H */
diff --git a/arch/tricore/src/tc3xx/tc3xx_serial.c b/arch/tricore/src/tc3xx/tc3xx_serial.c
index e20433ccacb..034cae70684 100644
--- a/arch/tricore/src/tc3xx/tc3xx_serial.c
+++ b/arch/tricore/src/tc3xx/tc3xx_serial.c
@@ -45,6 +45,8 @@
 
 #include "Asclin/Asc/IfxAsclin_Asc.h"
 
+#include <chip.h>
+
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
@@ -160,9 +162,6 @@ static char g_uart0txbuffer[CONFIG_UART0_TXBUFSIZE];
 
 #ifdef CONFIG_TC3XX_UART0
 
-#define UART_PIN_RX IfxAsclin0_RXA_P14_1_IN     /* UART receive port pin  */
-#define UART_PIN_TX IfxAsclin0_TX_P14_0_OUT     /* UART transmit port pin */
-
 /* Pin configuration */
 
 static const IfxAsclin_Asc_Pins g_uart0_pins =