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This patch enables BL2 to execute at the highest exception level without any dependancy on TF BL1. This enables platforms which already have a non-TF Boot ROM to directly load and execute BL2 and subsequent BL stages without need for BL1. This is not currently possible because BL2 executes at S-EL1 and cannot jump straight to EL3. Change-Id: Ief1efca4598560b1b8c8e61fbe26d1f44e929d69 Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>