Add Kconfig entries, header file changes and addition to the documentation.
The early debug infrastructure is also added for easy development.
Signed-off-by: NLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>