diff --git a/arch/arm/include/cxd56xx/ge2d.h b/arch/arm/include/cxd56xx/ge2d.h
new file mode 100644
index 00000000000..eb9dc2df214
--- /dev/null
+++ b/arch/arm/include/cxd56xx/ge2d.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * arch/arm/include/cxd56xx/cxd56_ge2d.h
+ *
+ *   Copyright 2018 Sony Semiconductor Solutions Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name of Sony Semiconductor Solutions Corporation nor
+ *    the names of its contributors may be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_ARM_INCLUDE_CXD56XX_GE2D_H
+#define __ARCH_ARM_INCLUDE_CXD56XX_GE2D_H
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+int cxd56_ge2dinitialize(FAR const char *devname);
+void cxd56_ge2duninitialize(FAR const char *devname);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ARCH_ARM_INCLUDE_CXD56XX_GE2D_H */
diff --git a/boards/arm/cxd56xx/drivers/audio/Make.defs b/boards/arm/cxd56xx/drivers/audio/Make.defs
index 94964b4d8a1..9b91677669a 100644
--- a/boards/arm/cxd56xx/drivers/audio/Make.defs
+++ b/boards/arm/cxd56xx/drivers/audio/Make.defs
@@ -1,3 +1,39 @@
+############################################################################
+# drivers/platform/audio/Make.defs
+#
+#   Copyright 2018 Sony Semiconductor Solutions Corporation
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name of Sony Semiconductor Solutions Corporation nor
+#    the names of its contributors may be used to endorse or promote
+#    products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+ifeq ($(CONFIG_CXD56_AUDIO),y)
 CSRCS += cxd56_audio.c
 CSRCS += cxd56_audio_config.c
 CSRCS += cxd56_audio_analog.c
@@ -13,6 +49,7 @@ CSRCS += cxd56_audio_ac_reg.c
 CSRCS += cxd56_audio_bca_reg.c
 CSRCS += cxd56_audio_aca.c
 CSRCS += cxd56_audio_pin.c
+endif
 
 DEPPATH += --dep-path platform$(DELIM)audio
 VPATH += :platform$(DELIM)audio
diff --git a/boards/arm/cxd56xx/spresense/src/cxd56_main.c b/boards/arm/cxd56xx/spresense/src/cxd56_main.c
index 3c21935a848..d6503a9a1b3 100644
--- a/boards/arm/cxd56xx/spresense/src/cxd56_main.c
+++ b/boards/arm/cxd56xx/spresense/src/cxd56_main.c
@@ -54,3 +54,9 @@ int weak_function spresense_main(int argc, char *argv[])
 {
   return nsh_main(argc, argv);
 }
+
+#ifdef CONFIG_SYSTEMTICK_HOOK
+void weak_function board_timerhook(void)
+{
+}
+#endif
diff --git a/drivers/usbhost/Make.defs b/drivers/usbhost/Make.defs
index 020523d2f8b..cfad07317f9 100644
--- a/drivers/usbhost/Make.defs
+++ b/drivers/usbhost/Make.defs
@@ -83,6 +83,7 @@ ifeq ($(CONFIG_DEBUG_USB),y)
 CSRCS += usbhost_trace.c
 endif
 endif
+endif
 
 # Include USB host driver build logic