tree e334cb88c8b3a1292d712ad38b774701f5cf29bd
parent a3c15057f3b1dde1b9d6a93f8550755dc490282d
author Masahiro Yamada <yamada.masahiro@socionext.com> 1497440292 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1497970468 +0900

uniphier: embed ROTPK hash into BL1/BL2

Currently, ROTPK_NOT_DEPLOYED flag is set in plat_get_rotpk_info().
It is up to users how to retrieve ROTPK if the ROT verification is
desired.  This is not nice.

This commit improves plat_get_rotpk_info() implementation and automates
the ROTPK deployment.  UniPhier platform has no ROTPK storage, so it
should be embedded in BL1/BL2, like ARM_ROTPK_LOCATION=devel_rsa case.
This makes sense because UniPhier platform implements its internal ROM
i.e. BL1 is used as updatable pseudo ROM.

Things work like this:

- ROT_KEY (default: $(BUILD_PLAT)/rot_key.pem) is created if missing.
  Users can override ROT_KEY from the command line if they want to
  use a specific ROT key.

- ROTPK_HASH is generated based on ROT_KEY.

- ROTPK_HASH is included by uniphier_rotpk.S and compiled into BL1/BL2.

- ROT_KEY is input to cert_create tool.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>