diff --git a/configs/open1788/README.txt b/configs/open1788/README.txt
index 999bc1070f..dc113aa4e1 100644
--- a/configs/open1788/README.txt
+++ b/configs/open1788/README.txt
@@ -427,3 +427,4 @@ CONFIGURATION
        not excessible to the applications.  So the RAM test can be
        freely executed against the SRAM memory beginning at address
        0xa000:0000 (CS0).
+
diff --git a/configs/open1788/include/board.h b/configs/open1788/include/board.h
index 819a314ca9..369d08eba6 100644
--- a/configs/open1788/include/board.h
+++ b/configs/open1788/include/board.h
@@ -197,7 +197,8 @@
  * Needed for NAND and SDRAM: {17,1,2,1}
  */
 
-#if defined(CONFIG_LPC17_EMC_NAND) || defined(CONFIG_LPC17_EMC_SDRAM)
+#ifdef CONFIG_LPC17_EMC
+#if defined(CONFIG_ARCH_EXTNAND) || defined(CONFIG_ARCH_EXTDRAM)
 #  define BOARD_CMDDLY             17
 #  define BOARD_FBCLKDLY           17
 #  define BOARD_CLKOUT0DLY         1
@@ -208,6 +209,7 @@
 #  define BOARD_CLKOUT0DLY         1
 #  define BOARD_CLKOUT1DLY         1
 #endif
+#endif
 
 /* LED definitions ******************************************************************/
 /* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
diff --git a/configs/open1788/src/Makefile b/configs/open1788/src/Makefile
index e00bdf1705..548a5792a2 100644
--- a/configs/open1788/src/Makefile
+++ b/configs/open1788/src/Makefile
@@ -40,15 +40,15 @@ CFLAGS += -I$(TOPDIR)/sched
 ASRCS = 
 CSRCS = lpc17_boardinitialize.c
 
-ifeq ($(CONFIG_LPC17_EMC_NOR),y)
+ifeq ($(CONFIG_ARCH_EXTNOR),y)
   CSRCS += lpc17_norinitialize.c
 endif
 
-ifeq ($(CONFIG_LPC17_EMC_NAND),y)
+ifeq ($(CONFIG_ARCH_EXTNAND),y)
   CSRCS += lpc17_nandinitialize.c
 endif
 
-ifeq ($(CONFIG_LPC17_EMC_SDRM),y)
+ifeq ($(CONFIG_ARCH_EXTDRAM),y)
   CSRCS += lpc17_sdraminitialize.c
 endif
 
diff --git a/configs/open1788/src/lpc17_boardinitialize.c b/configs/open1788/src/lpc17_boardinitialize.c
index a16f830248..f8916f0da1 100644
--- a/configs/open1788/src/lpc17_boardinitialize.c
+++ b/configs/open1788/src/lpc17_boardinitialize.c
@@ -80,13 +80,13 @@ void lpc17_boardinitialize(void)
 
 #ifdef CONFIG_LPC17_EMC
   lpc17_emcinitialize();
-#ifdef CONFIG_LPC17_EMC_SDRAM
+#ifdef CONFIG_ARCH_EXTDRAM
   lpc17_sdram_initialize();
 #endif
-#ifdef CONFIG_LPC17_EMC_NOR
+#ifdef CONFIG_ARCH_EXTNOR
   lpc17_nor_initialize();
 #endif
-#ifdef CONFIG_LPC17_EMC_NAND
+#ifdef CONFIG_ARCH_EXTNAND
   lpc17_nand_initialize();
 #endif
 #endif
diff --git a/configs/open1788/src/lpc17_nandinitialize.c b/configs/open1788/src/lpc17_nandinitialize.c
index 1c72b754c6..aa66b0d415 100644
--- a/configs/open1788/src/lpc17_nandinitialize.c
+++ b/configs/open1788/src/lpc17_nandinitialize.c
@@ -49,7 +49,7 @@
 
 #include "open1788.h"
 
-#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_LPC17_EMC_NAND)
+#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_ARCH_EXTNAND)
 
 /************************************************************************************
  * Definitions
@@ -98,4 +98,4 @@ void lpc17_nand_initialize(void)
   lpc17_gpioconfig(GPIO_NAND_RB);
 }
 
-#endif /* CONFIG_LPC17_EMC && CONFIG_LPC17_EMC_NAND */
+#endif /* CONFIG_LPC17_EMC && CONFIG_ARCH_EXTNAND */
diff --git a/configs/open1788/src/lpc17_norinitialize.c b/configs/open1788/src/lpc17_norinitialize.c
index 76838b3f03..5c4e4714a9 100644
--- a/configs/open1788/src/lpc17_norinitialize.c
+++ b/configs/open1788/src/lpc17_norinitialize.c
@@ -49,7 +49,7 @@
 
 #include "open1788.h"
 
-#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_LPC17_EMC_NOR)
+#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_ARCH_EXTNOR)
 
 /************************************************************************************
  * Definitions
@@ -94,4 +94,4 @@ void lpc17_nor_initialize(void)
   up_mdelay(10);
 }
 
-#endif /* CONFIG_LPC17_EMC && CONFIG_LPC17_EMC_NOR */
+#endif /* CONFIG_LPC17_EMC && CONFIG_ARCH_EXTNOR */
diff --git a/configs/open1788/src/lpc17_sdraminitialize.c b/configs/open1788/src/lpc17_sdraminitialize.c
index 4f5c7c0f7a..e18643f20e 100644
--- a/configs/open1788/src/lpc17_sdraminitialize.c
+++ b/configs/open1788/src/lpc17_sdraminitialize.c
@@ -42,14 +42,17 @@
 
 #include <debug.h>
 
+#include <nuttx/arch.h>
 #include <arch/board/board.h>
 
 #include "up_arch.h"
 #include "up_internal.h"
+#include "chip/lpc17_syscon.h"
+#include "lpc17_emc.h"
 
 #include "open1788.h"
 
-#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_LPC17_EMC_SDRAM)
+#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_ARCH_EXTDRAM)
 
 /************************************************************************************
  * Definitions
@@ -139,8 +142,8 @@ void lpc17_sdram_initialize(void)
   putreg32(                 1, LPC17_EMC_DYNAMICAPR);  /* TAPR  = 2 clocks? */
   putreg32(EMC_NS2CLK(20) + 2, LPC17_EMC_DYNAMICDAL);  /* TDAL  = TRP + TDPL = 20ns + 2clk  */
   putreg32(                 1, LPC17_EMC_DYNAMICWR);   /* TWR   = 2 clocks */
-  putreg32(     EMC_NS2CLK(63), LPC17_EMC_DYNAMICRC);  /* H57V2562GTR-75C TRC = 63ns(min)*/
-  putreg32(     EMC_NS2CLK(63, LPC17_EMC_DYNAMICRFC);  /* H57V2562GTR-75C TRFC = TRC */
+  putreg32(    EMC_NS2CLK(63), LPC17_EMC_DYNAMICRC);   /* H57V2562GTR-75C TRC = 63ns(min)*/
+  putreg32(    EMC_NS2CLK(63), LPC17_EMC_DYNAMICRFC);  /* H57V2562GTR-75C TRFC = TRC */
   putreg32(                15, LPC17_EMC_DYNAMICXSR);  /* Exit self-refresh to active */
   putreg32(    EMC_NS2CLK(63), LPC17_EMC_DYNAMICRRD);  /* 3 clock, TRRD = 15ns (min) */
   putreg32(                 1, LPC17_EMC_DYNAMICMRD);  /* 2 clock, TMRD = 2 clocks (min) */
@@ -207,7 +210,7 @@ void lpc17_sdram_initialize(void)
 #ifdef CONFIG_ARCH_SDRAM_16BIT
   dummy = getreg16(SDRAM_BASE | (0x33 << 12));  /* 8 burst, 3 CAS latency */
 #elif defined CONFIG_ARCH_SDRAM_32BIT
-  dummy = getreg32(SDRAM_BASE | (0x32 << 13))); /* 4 burst, 3 CAS latency */
+  dummy = getreg32(SDRAM_BASE | (0x32 << 13)); /* 4 burst, 3 CAS latency */
 #endif
 
   /* Issue NORMAL command */
@@ -227,4 +230,4 @@ void lpc17_sdram_initialize(void)
   putreg32(regval, LPC17_SYSCON_EMCDLYCTL);
 }
 
-#endif /* CONFIG_LPC17_EMC && CONFIG_LPC17_EMC_SDRAM */
+#endif /* CONFIG_LPC17_EMC && CONFIG_ARCH_EXTDRAM */
diff --git a/configs/open1788/src/open1788.h b/configs/open1788/src/open1788.h
index ccac52db48..f0362e8552 100644
--- a/configs/open1788/src/open1788.h
+++ b/configs/open1788/src/open1788.h
@@ -149,7 +149,7 @@ void weak_function lpc17_sspinitialize(void);
  ************************************************************************************/
 
 #ifdef CONFIG_LPC17_EMC
-#ifdef CONFIG_LPC17_EMC_SDRAM
+#ifdef CONFIG_ARCH_EXTDRAM
 void lpc17_sdram_initialize(void);
 #endif
 
@@ -161,7 +161,7 @@ void lpc17_sdram_initialize(void);
  *
  ************************************************************************************/
 
-#ifdef CONFIG_LPC17_EMC_NOR
+#ifdef CONFIG_ARCH_EXTNOR
 void lpc17_nor_initialize(void);
 #endif
 
@@ -173,7 +173,7 @@ void lpc17_nor_initialize(void);
  *
  ************************************************************************************/
 
-#ifdef CONFIG_LPC17_EMC_NAND
+#ifdef CONFIG_ARCH_EXTNAND
 void lpc17_nand_initialize(void);
 #endif
 #endif /* CONFIG_LPC17_EMC */
diff --git a/libc/string/lib_strtoul.c b/libc/string/lib_strtoul.c
index 8f27ae3f2d..62a7680431 100644
--- a/libc/string/lib_strtoul.c
+++ b/libc/string/lib_strtoul.c
@@ -93,6 +93,7 @@ unsigned long strtoul(const char *nptr, char **endptr, int base)
           *endptr = (char *)nptr;
         }
     }
+
    return accum;
 }