Marvell U-Boot Build Instructions
  =================================
  
  This document describes how to compile the U-Boot and how to change U-Boot configuration
  
  Build Procedure
  ----------------
  1. Install required packages:
  
  		# sudo apt-get install libssl-dev
  		# sudo apt-get install device-tree-compiler
  		# sudo apt-get install swig libpython-dev
  
  2. Set the cross compiler:
  
  		# export CROSS_COMPILE=/path/to/toolchain/aarch64-marvell-linux-gnu-
  
  3. Clean-up old residuals:
  
  		# make mrproper
  
  4. Configure the U-Boot:
  
  		# make <defconfig_file>
  
  	- For the Armada-70x0/80x0 DB board use "mvebu_db_armada8k_defconfig"
  	- For the Armada-80x0 MacchiatoBin use "make mvebu_mcbin-88f8040_defconfig"
  	- For the Armada-3700 DB board use "make mvebu_db-88f3720_defconfig"
  	- For the Armada-3700 EsspressoBin use "make mvebu_espressobin-88f3720_defconfig"
  
  5. Configure the device-tree and build the U-Boot image:
  
  	Compile u-boot and set the required device-tree using:
  
  		# make DEVICE_TREE=<name>
  
  	NOTE:
  	Compilation with "mvebu_db_armada8k_defconfig" requires explicitly exporting DEVICE_TREE
  	for the requested board.
  	By default, u-boot is compiled with armada-8040-db device-tree.
          Using A80x0 device-tree on A70x0 might break the device.
          In order to prevent this, the required device-tree MUST be set during compilation.
          All device-tree files are located in ./arch/arm/dts/ folder.
  
  	NOTE:
  	The u-boot.bin should not be used as a stand-alone image.
  	The ARM Trusted Firmware (ATF) build process uses this image to generate the
  	flash image.
  
  Configuration update
  ---------------------
  	To update the U-Boot configuration, please refer to doc/README.kconfig