diff --git a/configs/sam3u-ek/nsh/defconfig b/configs/sam3u-ek/nsh/defconfig
index 7c36d45ab0..ec41ea06f5 100755
--- a/configs/sam3u-ek/nsh/defconfig
+++ b/configs/sam3u-ek/nsh/defconfig
@@ -87,7 +87,7 @@ CONFIG_ARCH_BOOTLOADER=n
 CONFIG_ARCH_LEDS=y
 CONFIG_ARCH_BUTTONS=y
 CONFIG_ARCH_CALIBRATION=n
-CONFIG_ARCH_DMA=y
+CONFIG_ARCH_DMA=n
 
 #
 # Identify toolchain and linker options
@@ -100,9 +100,9 @@ CONFIG_SAM3U_BUILDROOT=y
 #
 #  Individual subsystems can be enabled:
 #
-CONFIG_SAM3U_DMA=y
+CONFIG_SAM3U_DMA=n
 CONFIG_SAM3U_NAND=n
-CONFIG_SAM3U_HSMCI=y
+CONFIG_SAM3U_HSMCI=n
 CONFIG_SAM3U_UART=y
 CONFIG_SAM3U_USART0=n
 CONFIG_SAM3U_USART1=n
@@ -316,7 +316,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
-CONFIG_SCHED_WORKQUEUE=y
+CONFIG_SCHED_WORKQUEUE=n
 CONFIG_SCHED_WORKPRIORITY=50
 CONFIG_SCHED_WORKPERIOD=(50*1000)
 CONFIG_SCHED_WORKSTACKSIZE=1024
@@ -700,7 +700,7 @@ CONFIG_EXAMPLES_NSH_DISABLEBG=n
 CONFIG_EXAMPLES_NSH_ROMFSETC=n
 CONFIG_EXAMPLES_NSH_CONSOLE=y
 CONFIG_EXAMPLES_NSH_TELNET=n
-CONFIG_EXAMPLES_NSH_ARCHINIT=y
+CONFIG_EXAMPLES_NSH_ARCHINIT=n
 CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE=512
 CONFIG_EXAMPLES_NSH_DHCPC=n
 CONFIG_EXAMPLES_NSH_NOMAC=n