[U-Boot] [PATCH v2 1/1] Secure Boot: Enable IE (Key extention) Feature

[york sun]

On 02/09/2017 02:08 AM, Udit Agarwal wrote:
> For validating images from uboot (Such as Kernel Image), either keys
> from SoC fuses can be used or keys from a verified table of public keys
> can be used. The latter feature is called IE Key Extension Feature.
>
> For Layerscape Chasis 3 based platforms, IE table is validated by Bootrom
> and address of this table is written in scratch registers 13 and 14 via
> PBI commands.
>
> Following are the steps describing usage of this feature:
>
> 1) Verify IE Table in ISBC phase using keys stored in fuses.
> 2) Install IE table. (To be used across verification of multiple images
>    stored in a static global structure.)
> 3) Use keys from IE table, to verify further images.
>
> Signed-off-by: Aneesh Bansal <aneesh.bansal at nxp.com>
> Signed-off-by: Saksham Jain <saksham.jain at nxp.com>
> Signed-off-by: Udit Agarwal <udit.agarwal at nxp.com>
> ---
>
> Changes for V2
> Adds more clarity in subject and description related to this feature.
> ---

Minor reformat commit message (some lines are too long). Applied to 
fsl-qoriq master, awaiting upstream. Thanks.

York