tree fcd3fca7f694fbf96667c930beebd09e0d7aec0a
parent f7cb5f4f234a7d5e61dcd77b024092db2a4fa21f
author Sam Elliott <selliott@lowrisc.org> 1595882074 +0100
committer Sam Elliott <sam@lenary.co.uk> 1596210464 +0100

[mask_rom] Mask ROM Initial Commit

This is the initial framework which we will continue to develop the Mask
ROM upon. The Mask ROM is the first stage of the Secure Boot process. The
aim of the Mask ROM code is to have as few dependencies as possible, and
for all the code to be as simple as possible, so we re-implement some
structures in other parts of the `sw` tree, rather than pull them in
entirely.

This code is based on the implementations in `sw/device/boot_rom` and
`sw/device/exts/common`.

The Mask ROM currently does not do anything, and certainly cannot load
a flash image to execute yet. These are future additions that will be
made.

Signed-off-by: Sam Elliott <selliott@lowrisc.org>