tree bd490853765d694ec2bc5cbcd59fdc7ac2d09acd
parent 436223def6e2ca5e9b9fe66c5e9217857280d44e
author Yatharth Kochar <yatharth.kochar@arm.com> 1444832844 +0100
committer Yatharth Kochar <yatharth.kochar@arm.com> 1449682879 +0000

FWU: Add Generic BL2U FWU image support in BL2

The Firmware Update (FWU) feature needs support for an optional
secure world image, BL2U, to allow additional secure world
initialization required by FWU, for example DDR initialization.

This patch adds generic framework support to create BL2U.

NOTE: A platform makefile must supply additional `BL2U_SOURCES`
      to build the bl2u target. A subsequent patch adds bl2u
      support for ARM platforms.

Change-Id: If2ce036199bb40b39b7f91a9332106bcd4e25413