diff --git a/arch/arm/src/lpc43xx/chip/lpc4357fet256_pinconfig.h b/arch/arm/src/lpc43xx/chip/lpc4357fet256_pinconfig.h
index f95b6e8a9f..2005e768d9 100644
--- a/arch/arm/src/lpc43xx/chip/lpc4357fet256_pinconfig.h
+++ b/arch/arm/src/lpc43xx/chip/lpc4357fet256_pinconfig.h
@@ -862,36 +862,36 @@
 #define PINCONF_U1_TXD_4         (PINCONF_FUNC4|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS3|PINCONF_PIN_4)
 #define PINCONF_U1_TXD_5         (PINCONF_FUNC4|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS5|PINCONF_PIN_6)
 
-#define PINCONF_U2_DIR_1         (PINCONF_FUNC1|PINCONF_PINS1|PINCONF_PIN_18)
-#define PINCONF_U2_DIR_2         (PINCONF_FUNC7|PINCONF_PINS2|PINCONF_PIN_13)
-#define PINCONF_U2_RXD_1         (PINCONF_FUNC1|PINCONF_PINS1|PINCONF_PIN_16)
-#define PINCONF_U2_RXD_2         (PINCONF_FUNC2|PINCONF_PINS2|PINCONF_PIN_11)
-#define PINCONF_U2_RXD_3         (PINCONF_FUNC3|PINCONF_PINSA|PINCONF_PIN_2)
-#define PINCONF_U2_RXD_4         (PINCONF_FUNC6|PINCONF_PINS7|PINCONF_PIN_2)
-#define PINCONF_U2_TXD_1         (PINCONF_FUNC1|PINCONF_PINS1|PINCONF_PIN_15)
-#define PINCONF_U2_TXD_2         (PINCONF_FUNC2|PINCONF_PINS2|PINCONF_PIN_10)
-#define PINCONF_U2_TXD_3         (PINCONF_FUNC3|PINCONF_PINSA|PINCONF_PIN_1)
-#define PINCONF_U2_TXD_4         (PINCONF_FUNC6|PINCONF_PINS7|PINCONF_PIN_1)
-#define PINCONF_U2_UCLK_1        (PINCONF_FUNC1|PINCONF_PINS1|PINCONF_PIN_17)
-#define PINCONF_U2_UCLK_2        (PINCONF_FUNC7|PINCONF_PINS2|PINCONF_PIN_12)
+#define PINCONF_U2_DIR_1         (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS1|PINCONF_PIN_18)
+#define PINCONF_U2_DIR_2         (PINCONF_FUNC7|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_13)
+#define PINCONF_U2_RXD_1         (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS1|PINCONF_PIN_16)
+#define PINCONF_U2_RXD_2         (PINCONF_FUNC2|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_11)
+#define PINCONF_U2_RXD_3         (PINCONF_FUNC3|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINSA|PINCONF_PIN_2)
+#define PINCONF_U2_RXD_4         (PINCONF_FUNC6|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS7|PINCONF_PIN_2)
+#define PINCONF_U2_TXD_1         (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS1|PINCONF_PIN_15)
+#define PINCONF_U2_TXD_2         (PINCONF_FUNC2|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_10)
+#define PINCONF_U2_TXD_3         (PINCONF_FUNC3|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINSA|PINCONF_PIN_1)
+#define PINCONF_U2_TXD_4         (PINCONF_FUNC6|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS7|PINCONF_PIN_1)
+#define PINCONF_U2_UCLK_1        (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS1|PINCONF_PIN_17)
+#define PINCONF_U2_UCLK_2        (PINCONF_FUNC7|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_12)
 
-#define PINCONF_U3_BAUD_1        (PINCONF_FUNC1|PINCONF_PINSF|PINCONF_PIN_7)
-#define PINCONF_U3_BAUD_2        (PINCONF_FUNC2|PINCONF_PINS2|PINCONF_PIN_9)
-#define PINCONF_U3_BAUD_3        (PINCONF_FUNC6|PINCONF_PINS4|PINCONF_PIN_3)
-#define PINCONF_U3_DIR_1         (PINCONF_FUNC1|PINCONF_PINSF|PINCONF_PIN_6)
-#define PINCONF_U3_DIR_2         (PINCONF_FUNC2|PINCONF_PINS2|PINCONF_PIN_8)
-#define PINCONF_U3_DIR_3         (PINCONF_FUNC6|PINCONF_PINS4|PINCONF_PIN_4)
-#define PINCONF_U3_RXD_1         (PINCONF_FUNC1|PINCONF_PINSF|PINCONF_PIN_3)
-#define PINCONF_U3_RXD_2         (PINCONF_FUNC2|PINCONF_PINS2|PINCONF_PIN_4)
-#define PINCONF_U3_RXD_3         (PINCONF_FUNC6|PINCONF_PINS4|PINCONF_PIN_2)
-#define PINCONF_U3_RXD_4         (PINCONF_FUNC7|PINCONF_PINS9|PINCONF_PIN_4)
-#define PINCONF_U3_TXD_1         (PINCONF_FUNC1|PINCONF_PINSF|PINCONF_PIN_2)
-#define PINCONF_U3_TXD_2         (PINCONF_FUNC2|PINCONF_PINS2|PINCONF_PIN_3)
-#define PINCONF_U3_TXD_3         (PINCONF_FUNC6|PINCONF_PINS4|PINCONF_PIN_1)
-#define PINCONF_U3_TXD_4         (PINCONF_FUNC7|PINCONF_PINS9|PINCONF_PIN_3)
-#define PINCONF_U3_UCLK_1        (PINCONF_FUNC1|PINCONF_PINSF|PINCONF_PIN_5)
-#define PINCONF_U3_UCLK_2        (PINCONF_FUNC2|PINCONF_PINS2|PINCONF_PIN_7)
-#define PINCONF_U3_UCLK_3        (PINCONF_FUNC6|PINCONF_PINS4|PINCONF_PIN_0)
+#define PINCONF_U3_BAUD_1        (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINSF|PINCONF_PIN_7)
+#define PINCONF_U3_BAUD_2        (PINCONF_FUNC2|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_9)
+#define PINCONF_U3_BAUD_3        (PINCONF_FUNC6|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS4|PINCONF_PIN_3)
+#define PINCONF_U3_DIR_1         (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINSF|PINCONF_PIN_6)
+#define PINCONF_U3_DIR_2         (PINCONF_FUNC2|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_8)
+#define PINCONF_U3_DIR_3         (PINCONF_FUNC6|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS4|PINCONF_PIN_4)
+#define PINCONF_U3_RXD_1         (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINSF|PINCONF_PIN_3)
+#define PINCONF_U3_RXD_2         (PINCONF_FUNC2|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_4)
+#define PINCONF_U3_RXD_3         (PINCONF_FUNC6|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS4|PINCONF_PIN_2)
+#define PINCONF_U3_RXD_4         (PINCONF_FUNC7|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS9|PINCONF_PIN_4)
+#define PINCONF_U3_TXD_1         (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINSF|PINCONF_PIN_2)
+#define PINCONF_U3_TXD_2         (PINCONF_FUNC2|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_3)
+#define PINCONF_U3_TXD_3         (PINCONF_FUNC6|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS4|PINCONF_PIN_1)
+#define PINCONF_U3_TXD_4         (PINCONF_FUNC7|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS9|PINCONF_PIN_3)
+#define PINCONF_U3_UCLK_1        (PINCONF_FUNC1|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINSF|PINCONF_PIN_5)
+#define PINCONF_U3_UCLK_2        (PINCONF_FUNC2|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS2|PINCONF_PIN_7)
+#define PINCONF_U3_UCLK_3        (PINCONF_FUNC6|PINCONF_PULLUP|PINCONF_INBUFFER|PINCONF_PINS4|PINCONF_PIN_0)
 
 #define PINCONF_USB0_IND0_1      (PINCONF_FUNC1|PINCONF_PINS8|PINCONF_PIN_2)
 #define PINCONF_USB0_IND0_2      (PINCONF_FUNC3|PINCONF_PINS2|PINCONF_PIN_6)
diff --git a/configs/lpc4357-evb/include/board.h b/configs/lpc4357-evb/include/board.h
index e882a103e9..c396b0c71a 100644
--- a/configs/lpc4357-evb/include/board.h
+++ b/configs/lpc4357-evb/include/board.h
@@ -271,13 +271,13 @@
 #define PINCONF_U1_TXD  PINCONF_U1_TXD_1
 #define PINCONF_U1_RXD  PINCONF_U1_RXD_1
 
-#define PINCONF_U2_TXD  PINCONF_U2_TXD_1
-#define PINCONF_U2_RXD  PINCONF_U2_RXD_1
-#define PINCONF_U2_DIR  PINCONF_U2_DIR_1
+#define PINCONF_U2_TXD  PINCONF_U2_TXD_3
+#define PINCONF_U2_RXD  PINCONF_U2_RXD_3
+#define PINCONF_U2_DIR  PINCONF_U2_DIR_2
 
-#define PINCONF_U3_TXD  PINCONF_U3_TXD_2
-#define PINCONF_U3_RXD  PINCONF_U3_RXD_2
-#define PINCONF_U3_DIR  PINCONF_U3_DIR_2
+#define PINCONF_U3_TXD  PINCONF_U3_TXD_4
+#define PINCONF_U3_RXD  PINCONF_U3_RXD_4
+#define PINCONF_U3_DIR  PINCONF_U3_DIR_3
 
 /****************************************************************************
  * Public Types