commit adf5d1c0866d96714466cf0add9d5e979c82a58d
author Jun Nie <jun.nie@linaro.org> Tue Feb 27 16:55:58 2018 +0800
committer Tom Rini <trini@konsulko.com> Mon Mar 19 09:59:32 2018 -0400
tree 0fc4b285f0a0da1bc15fb9b8cb3e7d8918bb9916
parent 74d499b364c18538b083a6a33e24e52af18733fe

SPL: Add signature verification when loading image

U-boot proper signature is not verified by SPL on most platforms
even config SPL_FIT_SIGNATURE is enabled. Only fsl-layerscape
platform support secure boot in platform specific code. So
verified boot cannot be achieved if u-boot proper is loaded by
SPL.

This patch add signature verification to u-boot proper images
when loading FIT image in SPL. It is tested on Allwinner bananapi
zero board with H2+ SoC.

Signed-off-by: Jun Nie <jun.nie@linaro.org>