serial: cadence: add lowlevel init and putc functions
...
This allows to use the Cadence serial as a PBL console.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Lucas Stach
authored
on 13 Jan 2020
Sascha Hauer
committed
on 14 Jan 2020
