diff --git a/boards/arm/cxd56xx/spresense/configs/audio/defconfig b/boards/arm/cxd56xx/spresense/configs/audio/defconfig
new file mode 100644
index 00000000000..372c312aaa4
--- /dev/null
+++ b/boards/arm/cxd56xx/spresense/configs/audio/defconfig
@@ -0,0 +1,88 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_CXD56_I2C0_SCUSEQ is not set
+# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
+# CONFIG_MMCSD_SPI is not set
+# CONFIG_MTD_SMART_WEAR_LEVEL is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="spresense"
+CONFIG_ARCH_BOARD_SPRESENSE=y
+CONFIG_ARCH_CHIP="cxd56xx"
+CONFIG_ARCH_CHIP_CXD56XX=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARMV7M_USEBASEPRI=y
+CONFIG_BOARD_LOOPSPERMSEC=5434
+CONFIG_BOOT_RUNFROMISRAM=y
+CONFIG_BUILTIN=y
+CONFIG_CLOCK_MONOTONIC=y
+CONFIG_CXD56_BINARY=y
+CONFIG_CXD56_I2C0=y
+CONFIG_CXD56_I2C=y
+CONFIG_CXD56_SDIO=y
+CONFIG_CXD56_SPI4=y
+CONFIG_CXD56_SPI5=y
+CONFIG_CXD56_SPI=y
+CONFIG_CXD56_AUDIO=y
+CONFIG_CXD56_USBDEV=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FAT_MAXFNAME=64
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_FS_SMARTFS=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_I2C=y
+CONFIG_MAX_TASKS=16
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_MMCSD=y
+CONFIG_MMCSD_SDIO=y
+CONFIG_MTD_BYTE_WRITE=y
+CONFIG_MTD_PARTITION=y
+CONFIG_MTD_SMART=y
+CONFIG_MTD_SMART_ENABLE_CRC=y
+CONFIG_MTD_SMART_SECTOR_SIZE=4096
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_PREALLOC_WDOGS=16
+CONFIG_RAM_SIZE=1572864
+CONFIG_RAM_START=0x0d000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_RTC=y
+CONFIG_RTC_DRIVER=y
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_SMARTFS_ALIGNED_ACCESS=y
+CONFIG_SMARTFS_MAXNAMLEN=30
+CONFIG_SMARTFS_MULTI_ROOT_DIRS=y
+CONFIG_SPI=y
+CONFIG_START_DAY=6
+CONFIG_START_MONTH=12
+CONFIG_START_YEAR=2011
+CONFIG_SYSTEM_CLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NSH_CXXINITIALIZE=y
+CONFIG_SYSTEM_USBMSC=y
+CONFIG_UART1_SERIAL_CONSOLE=y
+CONFIG_USBDEV=y
+CONFIG_USBDEV_DMA=y
+CONFIG_USBDEV_DUALSPEED=y
+CONFIG_USBMSC=y
+CONFIG_USBMSC_EPBULKIN=1
+CONFIG_USBMSC_REMOVABLE=y
+CONFIG_USER_ENTRYPOINT="spresense_main"
diff --git a/boards/arm/cxd56xx/spresense/include/board.h b/boards/arm/cxd56xx/spresense/include/board.h
index 86e099c4fa6..abb0846c8e1 100644
--- a/boards/arm/cxd56xx/spresense/include/board.h
+++ b/boards/arm/cxd56xx/spresense/include/board.h
@@ -232,6 +232,12 @@ enum board_power_device
   POWER_IMAGE_SENSOR    = PMIC_GPO(4) | PMIC_GPO(5) | PMIC_GPO(7),
 };
 
+/* CXD5247 audio control definitions ***************************************/
+
+#define CXD5247_XRST  PIN_SPI3_CS2_X
+#define CXD5247_AVDD  (0x01)
+#define CXD5247_DVDD  (0x02)
+
 /* LCD Display clocking ****************************************************/
 
 #define ILI9340_SPI_MAXFREQUENCY    40000000
diff --git a/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c b/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c
index a7b94eb4fad..8b2052a20af 100644
--- a/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c
+++ b/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c
@@ -109,6 +109,10 @@
 #  include <arch/chip/adc.h>
 #endif
 
+#ifdef CONFIG_CXD56_SCU
+#  include <arch/chip/scu.h>
+#endif
+
 #include "spresense.h"
 
 /****************************************************************************
@@ -276,6 +280,10 @@ int cxd56_bringup(void)
 
   board_power_setup(0);
 
+#ifdef CONFIG_CXD56_SCU
+  scu_initialize();
+#endif
+
 #ifdef CONFIG_FS_PROCFS
 
 #if defined(CONFIG_USBDEV) && defined(CONFIG_FS_PROCFS_REGISTER)