diff --git a/board/sandbox/MAINTAINERS b/board/sandbox/MAINTAINERS
index 4dcbf4b..6d0790c 100644
--- a/board/sandbox/MAINTAINERS
+++ b/board/sandbox/MAINTAINERS
@@ -18,3 +18,10 @@
 F:	board/sandbox/
 F:	include/configs/sandbox_spl.h
 F:	configs/sandbox_spl_defconfig
+
+SANDBOX FLAT TREE BOARD
+M:	Simon Glass <sjg@chromium.org>
+S:	Maintained
+F:	board/sandbox/
+F:	include/configs/sandbox.h
+F:	configs/sandbox_flattree_defconfig
diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig
new file mode 100644
index 0000000..83efb23
--- /dev/null
+++ b/configs/sandbox_flattree_defconfig
@@ -0,0 +1,179 @@
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_DEFAULT_DEVICE_TREE="sandbox"
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_SPL_LOAD_FIT=y
+CONFIG_BOOTSTAGE=y
+CONFIG_BOOTSTAGE_REPORT=y
+CONFIG_BOOTSTAGE_USER_COUNT=0x20
+CONFIG_BOOTSTAGE_FDT=y
+CONFIG_BOOTSTAGE_STASH=y
+CONFIG_BOOTSTAGE_STASH_ADDR=0x0
+CONFIG_BOOTSTAGE_STASH_SIZE=0x4096
+CONFIG_CONSOLE_RECORD=y
+CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
+CONFIG_SILENT_CONSOLE=y
+CONFIG_CMD_CPU=y
+CONFIG_CMD_LICENSE=y
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_IMLS is not set
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_GREPENV=y
+CONFIG_CMD_MD5SUM=y
+CONFIG_LOOPW=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_MX_CYCLIC=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_DEMO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_REMOTEPROC=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_TFTPPUT=y
+CONFIG_CMD_TFTPSRV=y
+CONFIG_CMD_RARP=y
+CONFIG_CMD_CDP=y
+CONFIG_CMD_SNTP=y
+CONFIG_CMD_DNS=y
+CONFIG_CMD_LINK_LOCAL=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_TIMER=y
+CONFIG_CMD_SOUND=y
+CONFIG_CMD_QFW=y
+CONFIG_CMD_BOOTSTAGE=y
+CONFIG_CMD_PMIC=y
+CONFIG_CMD_REGULATOR=y
+CONFIG_CMD_TPM=y
+CONFIG_CMD_TPM_TEST=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_MAC_PARTITION=y
+CONFIG_AMIGA_PARTITION=y
+CONFIG_OF_CONTROL=y
+CONFIG_OF_HOSTFILE=y
+CONFIG_NETCONSOLE=y
+CONFIG_REGMAP=y
+CONFIG_SPL_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_SPL_SYSCON=y
+CONFIG_DEVRES=y
+CONFIG_DEBUG_DEVRES=y
+CONFIG_ADC=y
+CONFIG_ADC_SANDBOX=y
+CONFIG_CLK=y
+CONFIG_CPU=y
+CONFIG_DM_DEMO=y
+CONFIG_DM_DEMO_SIMPLE=y
+CONFIG_DM_DEMO_SHAPE=y
+CONFIG_PM8916_GPIO=y
+CONFIG_SANDBOX_GPIO=y
+CONFIG_DM_I2C_COMPAT=y
+CONFIG_I2C_CROS_EC_TUNNEL=y
+CONFIG_I2C_CROS_EC_LDO=y
+CONFIG_DM_I2C_GPIO=y
+CONFIG_SYS_I2C_SANDBOX=y
+CONFIG_I2C_MUX=y
+CONFIG_SPL_I2C_MUX=y
+CONFIG_I2C_ARB_GPIO_CHALLENGE=y
+CONFIG_CROS_EC_KEYB=y
+CONFIG_I8042_KEYB=y
+CONFIG_LED=y
+CONFIG_LED_BLINK=y
+CONFIG_LED_GPIO=y
+CONFIG_DM_MAILBOX=y
+CONFIG_SANDBOX_MBOX=y
+CONFIG_MISC=y
+CONFIG_CROS_EC=y
+CONFIG_CROS_EC_I2C=y
+CONFIG_CROS_EC_LPC=y
+CONFIG_CROS_EC_SANDBOX=y
+CONFIG_CROS_EC_SPI=y
+CONFIG_PWRSEQ=y
+CONFIG_SPL_PWRSEQ=y
+CONFIG_I2C_EEPROM=y
+CONFIG_MMC_SANDBOX=y
+CONFIG_SPI_FLASH_SANDBOX=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_EON=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_SST=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_DM_ETH=y
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_DM_PCI_COMPAT=y
+CONFIG_PCI_SANDBOX=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_ROCKCHIP_RK3036=y
+CONFIG_PINCTRL_ROCKCHIP_RK3288=y
+CONFIG_PINCTRL_SANDBOX=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_SANDBOX_POWER_DOMAIN=y
+CONFIG_DM_PMIC=y
+CONFIG_PMIC_ACT8846=y
+CONFIG_DM_PMIC_PFUZE100=y
+CONFIG_DM_PMIC_MAX77686=y
+CONFIG_PMIC_PM8916=y
+CONFIG_PMIC_RK808=y
+CONFIG_PMIC_S2MPS11=y
+CONFIG_DM_PMIC_SANDBOX=y
+CONFIG_PMIC_S5M8767=y
+CONFIG_PMIC_TPS65090=y
+CONFIG_DM_REGULATOR=y
+CONFIG_REGULATOR_ACT8846=y
+CONFIG_DM_REGULATOR_PFUZE100=y
+CONFIG_DM_REGULATOR_MAX77686=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_REGULATOR_RK808=y
+CONFIG_REGULATOR_S5M8767=y
+CONFIG_DM_REGULATOR_SANDBOX=y
+CONFIG_REGULATOR_TPS65090=y
+CONFIG_RAM=y
+CONFIG_REMOTEPROC_SANDBOX=y
+CONFIG_DM_RESET=y
+CONFIG_SANDBOX_RESET=y
+CONFIG_DM_RTC=y
+CONFIG_SANDBOX_SERIAL=y
+CONFIG_SOUND=y
+CONFIG_SOUND_SANDBOX=y
+CONFIG_SANDBOX_SPI=y
+CONFIG_SPMI=y
+CONFIG_SPMI_SANDBOX=y
+CONFIG_SYSRESET=y
+CONFIG_TIMER=y
+CONFIG_TIMER_EARLY=y
+CONFIG_SANDBOX_TIMER=y
+CONFIG_TPM_TIS_SANDBOX=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EMUL=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_KEYBOARD=y
+CONFIG_SYS_USB_EVENT_POLL=y
+CONFIG_DM_VIDEO=y
+CONFIG_CONSOLE_ROTATION=y
+CONFIG_CONSOLE_TRUETYPE=y
+CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y
+CONFIG_VIDEO_SANDBOX_SDL=y
+CONFIG_PHY=y
+CONFIG_PHY_SANDBOX=y
+CONFIG_CMD_DHRYSTONE=y
+CONFIG_TPM=y
+CONFIG_LZ4=y
+CONFIG_ERRNO_STR=y
+CONFIG_UNIT_TEST=y
+CONFIG_UT_TIME=y
+CONFIG_UT_DM=y
+CONFIG_UT_ENV=y
+CONFIG_DM_PWM=y
+CONFIG_PWM_SANDBOX=y