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Migrate to mmc framework.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

This patch adds experimental support for TRUSTED_BOARD_BOOT to the
Hikey. This is adapted from the RPi3 and QEMU implementations.

Since the Hikey starts from BL2 the TRUSTED_BOARD_BOOT ROT begins there
too. When TRUSTED_BOARD_BOOT is defined, the BL1 build is skipped.

See the following example:

make \
 PLAT=hikey \
 BL33=u-boot.bin \
 SCP_BL2=mcuimage.bin \
 TRUSTED_BOARD_BOOT=1 \
 MBEDTLS_DIR=../../mbedtls \
 GENERATE_COT=1 \
 all fip
Signed-off-by: Teddy Reed <teddy.reed@gmail.com>

Since non-TF ROM is used in HiKey platform (Hisilicon Hi6220 SoC),
replace BL1 by BL2_EL3 in normal boot mode.

When we recovery images in recovery mode, keep to use BL1.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

These macros are only defined for corresponding image,
and they are undefined for other images. It means that we have
to use ifdef or defined() instead of relying on being 0 by default.

Change-Id: Iad11efab9830ddf471599b46286e1c56581ef5a7
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Signed-off-by: Victor Chong <victor.chong@linaro.org>

Signed-off-by: Victor Chong <victor.chong@linaro.org>

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>