Summary
  =======

  Note: this document used to be about the entire family of DaVinci SOCs but the
  support for the DM* family and DA830 has since been dropped.

  This README is about U-Boot support for TI's DA850 SoC. This SOC has an OMAP
  part number but is very similar to the DaVinci series.

  Currently the following boards are supported:

  * TI DA850 EVM

  * TI OMAP-L138 LCDK

  * Lego EV3

  
  Build
  =====

  * TI DA850 EVM:
  
  make da850evm_config
  make

  * TI OMAP-L138 LCDK

  make omapl138_lcdk_defconfig

  make

  * Lego EV3

  make legoev3_defconfig

  make
  
  Bootloaders
  ===============

  For DA850 an SPL (secondary program loader, see doc/README.SPL) is provided
  to load U-Boot directly from SPI flash. The SPL takes care of the low level
  initialization.
  
  The SPL is built as u-boot.ais for all DA850 defconfigs. The resulting
  image file can be programmed to the SPI flash of the DA850 EVM/LCDK.

  Environment Variables
  =====================
  
  The DA850 EVM allows the user to specify the maximum cpu clock allowed by the
  silicon, in Hz, via an environment variable "maxcpuclk".
  
  The maximum clock rate allowed depends on the silicon populated on the EVM.
  Please make sure you understand the restrictions placed on this clock in the
  device specific datasheet before setting up this variable. This information is
  passed to the Linux kernel using the ATAG_REVISION atag.
  
  If "maxcpuclk" is not defined, the configuration CONFIG_DA850_EVM_MAX_CPU_CLK
  is used to obtain this information.

  Links
  =====

  1) TI DA850 EVM

  http://focus.ti.com/docs/prod/folders/print/omap-l138.html
  http://www.logicpd.com/products/development-kits/zoom-omap-l138-evm-development-kit

  2) TI OMAP-L138 LCDK
  http://focus.ti.com/docs/prod/folders/print/omap-l138.html
  http://www.ti.com/tool/TMDXLCDK138

  Davinci special defines
  =======================
  
  CONFIG_SYS_DV_NOR_BOOT_CFG:	AM18xx based boards, booting in NOR Boot mode
  				need a "NOR Boot Configuration Word" stored
  				in the NOR Flash. This define adds this.
  				More Info about this, see:
  				spraba5a.pdf chapter 3.1