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enable PMF service call and instrumetion for hikey platform
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>

Support BL31 and PSCI. Enable multiple cores in PSCI.

Change-Id: I66c39e1e9c4c45ac41a0142ed2070d79a3ac5ba3
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Dan Handley <dan.handley@arm.com>

BL2 is used to load BL31 and SCP_BL2. In HiKey platform, SCP_BL2
is the mcu firmware that is used to scale cpu frequency and switch
low power mode.

Change-Id: I1621aa65bea989fd125ee8502fd56ef72362bf97
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Dan Handley <dan.handley@arm.com>

Initialize regulators, pins and eMMC in BL1. Only SRAM could be used in BL1.
So BL2 will be loaded from eMMC into SRAM later.

Change-Id: I8e7ef82ffa29a3c647c9d2d2981e8759ee85d833
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Dan Handley <dan.handley@arm.com>