ARM: cns3xxx: Add basic support for Cavium Networks CNS3xxx processors

This patch adds very basic support for ECONA CNS3xxx ARM11 MPcore
(ARMv6) dual-core processors.

Note that SMP is not yet supported, as well as many peripheral
devices. Support for these features will be added later.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
20 files changed