avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/configs/socfpga_de0_nano_soc_defconfig

@@ -0,0 +1,52 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SOCFPGA=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+CONFIG_SPL_DM=y
+CONFIG_DM_GPIO=y
+CONFIG_TARGET_SOCFPGA_TERASIC_DE0_NANO=y
+CONFIG_SPL_STACK_R_ADDR=0x00800000
+CONFIG_DEFAULT_DEVICE_TREE="socfpga_cyclone5_de0_nano_soc"
+CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=3
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_IMLS is not set
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_GREPENV=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DFU=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_DWAPB_GPIO=y
+CONFIG_SYS_I2C_DW=y
+CONFIG_DM_MMC=y
+CONFIG_DM_ETH=y
+CONFIG_ETH_DESIGNWARE=y
+CONFIG_SYS_NS16550=y
+CONFIG_CADENCE_QSPI=y
+CONFIG_DESIGNWARE_SPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_G_DNL_MANUFACTURER="terasic"
+CONFIG_G_DNL_VENDOR_NUM=0x0525
+CONFIG_G_DNL_PRODUCT_NUM=0xa4a5
+CONFIG_USE_TINY_PRINTF=y