diff --git a/boards/arm/tiva/eagle100/configs/nxflat/defconfig b/boards/arm/tiva/eagle100/configs/nxflat/defconfig
index de2f6422dae..7cca6983c78 100644
--- a/boards/arm/tiva/eagle100/configs/nxflat/defconfig
+++ b/boards/arm/tiva/eagle100/configs/nxflat/defconfig
@@ -19,6 +19,7 @@ CONFIG_CONSOLE_SYSLOG=y
 CONFIG_DISABLE_ENVIRON=y
 CONFIG_EXAMPLES_NXFLAT=y
 CONFIG_FS_ROMFS=y
+CONFIG_LIBM=y
 CONFIG_LIB_BOARDCTL=y
 CONFIG_MAX_TASKS=16
 CONFIG_NXFLAT=y
diff --git a/boards/arm/tiva/eagle100/src/lm_appinit.c b/boards/arm/tiva/eagle100/src/lm_appinit.c
index 8a028bd9323..a28766c6d64 100644
--- a/boards/arm/tiva/eagle100/src/lm_appinit.c
+++ b/boards/arm/tiva/eagle100/src/lm_appinit.c
@@ -108,7 +108,9 @@
 int board_app_initialize(uintptr_t arg)
 {
   FAR struct spi_dev_s *spi;
+#if defined (CONFIG_MMCSD) && defined (CONFIG_MMCSD_SPI)
   int ret;
+#endif
 
   /* Get the SPI port */
 
@@ -126,6 +128,7 @@ int board_app_initialize(uintptr_t arg)
   syslog(LOG_INFO, "Successfully initialized SPI port %d\n",
          CONFIG_NSH_MMCSDSPIPORTNO);
 
+#if defined (CONFIG_MMCSD) && defined (CONFIG_MMCSD_SPI)
   /* Bind the SPI port to the slot */
 
   syslog(LOG_INFO, "Binding SPI port %d to MMC/SD slot %d\n",
@@ -143,5 +146,7 @@ int board_app_initialize(uintptr_t arg)
 
   syslog(LOG_INFO, "Successfully bound SPI port %d to MMC/SD slot %d\n",
          CONFIG_NSH_MMCSDSPIPORTNO, CONFIG_NSH_MMCSDSLOTNO);
+#endif
+
   return OK;
 }