diff --git a/arch/arm/src/lpc17xx/lpc17_lowputc.c b/arch/arm/src/lpc17xx/lpc17_lowputc.c
index 83dbd709c1..47746ef266 100755
--- a/arch/arm/src/lpc17xx/lpc17_lowputc.c
+++ b/arch/arm/src/lpc17xx/lpc17_lowputc.c
@@ -1,7 +1,7 @@
 /**************************************************************************
  * arch/arm/src/lpc17xx/lpc17_lowputc.c
  *
- *   Copyright (C) 2010 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2010-2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -340,7 +340,7 @@ void lpc17_lowsetup(void)
 #elif defined(CONFIG_UART1_SERIAL_CONSOLE)
   lpc17_configgpio(GPIO_UART1_TXD);
   lpc17_configgpio(GPIO_UART1_RXD);
-#ifdef CONFIG_UART0_FLOWCONTROL
+#ifdef CONFIG_UART1_FLOWCONTROL
   lpc17_configgpio(GPIO_UART1_CTS);
   lpc17_configgpio(GPIO_UART1_DCD);
   lpc17_configgpio(GPIO_UART1_DSR);
diff --git a/arch/arm/src/lpc17xx/lpc17_serial.c b/arch/arm/src/lpc17xx/lpc17_serial.c
index 63687038f1..f5c20aca61 100755
--- a/arch/arm/src/lpc17xx/lpc17_serial.c
+++ b/arch/arm/src/lpc17xx/lpc17_serial.c
@@ -141,12 +141,12 @@ static char g_uart1rxbuffer[CONFIG_UART1_RXBUFSIZE];
 static char g_uart1txbuffer[CONFIG_UART1_TXBUFSIZE];
 #endif
 #ifdef CONFIG_LPC17_UART2
-static char g_uart2rxbuffer[CONFIG_UART1_RXBUFSIZE];
-static char g_uart2txbuffer[CONFIG_UART1_TXBUFSIZE];
+static char g_uart2rxbuffer[CONFIG_UART2_RXBUFSIZE];
+static char g_uart2txbuffer[CONFIG_UART2_TXBUFSIZE];
 #endif
 #ifdef CONFIG_LPC17_UART3
-static char g_uart3rxbuffer[CONFIG_UART1_RXBUFSIZE];
-static char g_uart3txbuffer[CONFIG_UART1_TXBUFSIZE];
+static char g_uart3rxbuffer[CONFIG_UART3_RXBUFSIZE];
+static char g_uart3txbuffer[CONFIG_UART3_TXBUFSIZE];
 #endif
 
 /* This describes the state of the LPC17xx uart0 port. */
@@ -694,7 +694,7 @@ static inline void lpc17_uart2config(uint32_t clkdiv)
   /* Step 2: Enable clocking on UART */
 
   regval = getreg32(LPC17_SYSCON_PCLKSEL1);
-  regval &= ~SYSCON_PCLKSEL0_UART2_MASK;
+  regval &= ~SYSCON_PCLKSEL1_UART2_MASK;
   regval |= (clkdiv << SYSCON_PCLKSEL1_UART2_SHIFT);
   putreg32(regval, LPC17_SYSCON_PCLKSEL1);
 
@@ -722,7 +722,7 @@ static inline void lpc17_uart3config(uint32_t clkdiv)
   /* Step 2: Enable clocking on UART */
 
   regval = getreg32(LPC17_SYSCON_PCLKSEL1);
-  regval &= ~SYSCON_PCLKSEL0_UART3_MASK;
+  regval &= ~SYSCON_PCLKSEL1_UART3_MASK;
   regval |= (clkdiv << SYSCON_PCLKSEL1_UART3_SHIFT);
   putreg32(regval, LPC17_SYSCON_PCLKSEL1);