On Mon, Jan 15, 2018 at 6:53 AM, Greentime Hu <green.hu@xxxxxxxxx> wrote: > From: Greentime Hu <greentime@xxxxxxxxxxxxx> > > It will get the wrong virtual address because port->mapbase is not added > the correct reg-offset yet. We have to update it before earlycon_map() > is called > > Signed-off-by: Greentime Hu <greentime@xxxxxxxxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx> Cc: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Fixes: 088da2a17619 ("of: earlycon: Initialize port fields from DT properties") As this is a bugfix for generic code, this might be good to have Greg pick up directly for his serial drivers tree. An Ack from Peter Hurley would also help, as he introduced the reg-offset handling originally. Arnd