configs: stm32f746-disco: Add stm32f746-disco_defconfig

Add stm32f746-disco_defconfig for stm32f746 discovery board to
build U-Boot proper.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
diff --git a/configs/stm32f746-disco_defconfig b/configs/stm32f746-disco_defconfig
new file mode 100644
index 0000000..2c70bac
--- /dev/null
+++ b/configs/stm32f746-disco_defconfig
@@ -0,0 +1,64 @@
+CONFIG_ARM=y
+CONFIG_ARCH_STM32=y
+CONFIG_SYS_TEXT_BASE=0x08000000
+CONFIG_SYS_MALLOC_LEN=0x100000
+CONFIG_SYS_MALLOC_F_LEN=0xE00
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x2000
+CONFIG_DEFAULT_DEVICE_TREE="stm32f746-disco"
+CONFIG_STM32F7=y
+CONFIG_TARGET_STM32F746_DISCO=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_SYS_LOAD_ADDR=0x8008000
+CONFIG_BOOTDELAY=3
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_PROMPT="Hit SPACE in %d seconds to stop autoboot.\n"
+CONFIG_AUTOBOOT_STOP_STR=" "
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyS0,115200 earlyprintk consoleblank=0 ignore_loglevel"
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_SYS_PROMPT="U-Boot > "
+CONFIG_CMD_GPT=y
+# CONFIG_RANDOM_UUID is not set
+CONFIG_CMD_MMC=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_SNTP=y
+CONFIG_CMD_DNS=y
+CONFIG_CMD_LINK_LOCAL=y
+CONFIG_CMD_BMP=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIMER=y
+# CONFIG_ISO_PARTITION is not set
+CONFIG_OF_CONTROL=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_NETCONSOLE=y
+CONFIG_ARM_PL180_MMCI=y
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_NOR_FLASH=y
+CONFIG_STM32_FLASH=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_PHY_SMSC=y
+CONFIG_DM_ETH=y
+CONFIG_ETH_DESIGNWARE=y
+CONFIG_MII=y
+# CONFIG_PINCTRL_FULL is not set
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_STM32_QSPI=y
+CONFIG_DM_VIDEO=y
+CONFIG_BACKLIGHT_GPIO=y
+CONFIG_VIDEO_STM32=y
+CONFIG_VIDEO_STM32_MAX_XRES=480
+CONFIG_VIDEO_STM32_MAX_YRES=640
+CONFIG_SPLASH_SCREEN=y
+CONFIG_SPLASH_SCREEN_ALIGN=y
+CONFIG_VIDEO_BMP_RLE8=y
+CONFIG_BMP_16BPP=y
+CONFIG_BMP_24BPP=y
+CONFIG_BMP_32BPP=y
+CONFIG_OF_LIBFDT_OVERLAY=y