diff --git a/configs/twr-k60n512/README.txt b/configs/twr-k60n512/README.txt
index 794820845e..a907c556b1 100644
--- a/configs/twr-k60n512/README.txt
+++ b/configs/twr-k60n512/README.txt
@@ -614,3 +614,31 @@ Where <subdir> is one of the following:
     using the DFU bootloader.
 
     CONFIG_KINETIS_BUILDROOT=y	  : NuttX buildroot under Linux or Cygwin
+
+  nsh:
+  ---
+    Configures the NuttShell (nsh) located at apps/examples/nsh.  The
+    Configuration enables both the serial and telnet NSH interfaces.
+    Support for the board's SPI-based MicroSD card is included
+    (but not passing tests as of this writing).
+
+	NOTE: An SDHC driver is underwork and can be enabled in the NSH
+    configuration for further testing be setting the following
+    configuration faluesas follows:
+
+      -CONFIG_KINETIS_SDHC=n
+      +CONFIG_KINETIS_SDHC=y         # Enable the SDHC driver
+
+      -CONFIG_GPIO_IRQ=n
+      +CONFIG_GPIO_IRQ=y             # Enable GPIO interrupts
+
+      -CONFIG_KINETIS_PORTEINTS=n
+      +CONFIG_KINETIS_PORTEINTS=y    # Enable PortE GPIO interrupts
+
+      -CONFIG_SCHED_WORKQUEUE=n
+      +CONFIG_SCHED_WORKQUEUE=y      # Enable the NuttX workqueue
+
+      -CONFIG_NSH_ARCHINIT=n
+      +CONFIG_NSH_ARCHINIT=y         # Provide NSH intialization logic
+
+
diff --git a/configs/twr-k60n512/nsh/defconfig b/configs/twr-k60n512/nsh/defconfig
index 76569ab6f2..dda77f50f4 100644
--- a/configs/twr-k60n512/nsh/defconfig
+++ b/configs/twr-k60n512/nsh/defconfig
@@ -399,6 +399,7 @@ CONFIG_HAVE_LIBM=n
 CONFIG_DEBUG=n
 CONFIG_DEBUG_VERBOSE=n
 CONFIG_DEBUG_SYMBOLS=n
+CONFIG_DEBUG_FS=n
 CONFIG_MM_REGIONS=1
 CONFIG_ARCH_LOWPUTC=y
 CONFIG_RR_INTERVAL=200
@@ -609,6 +610,7 @@ CONFIG_FS_WRITEBUFFER=n
 #   SDIO driver card detection is 100% accurate
 #
 CONFIG_SDIO_DMA=n
+CONFIG_SDIO_XFRDEBUG=n
 CONFIG_MMCSD_MMCSUPPORT=n
 CONFIG_MMCSD_HAVECARDDETECT=n