tree dfed71cffc9e5cf762856f75706edb9d5bd823e5
parent c45f627de4a17d4be6727cbf357e7fb54479a563
author Soby Mathew <soby.mathew@arm.com> 1462812595 +0100
committer Soby Mathew <soby.mathew@arm.com> 1470828890 +0100

AArch32: Add essential Arch helpers

This patch adds the essential AArch32 architecture helpers
arch.h and arch_helpers.h and modifies `_types.h` to add AArch32
support.

A new build option `ARCH` is defined in the top level makefile to
enable the component makefiles to choose the right files based on the
Architecture it is being build for. Depending on this flag, either
`AARCH32` or `AARCH64` flag is defined by the Makefile. The default
value of `ARCH` flag is `aarch64`. The AArch32 build support will be
added in a later patch.

Change-Id: I405e5fac02db828a55cd25989b572b64cb005241