Pete, To try if 8250.c can work under db1550/linux 2.6.12, I turn off the au1x00_uart.c config and just compiled in the 8250 support. When I boot the kernel, nothing comes up through the console, which should be provided by 8250 support, by 8250_early.c? Any idea? On 7/1/05, Pete Popov <ppopov@xxxxxxxxxxxxxxxxx> wrote: > On Fri, 2005-07-01 at 17:56 -0700, rolf liu wrote: > > Basically, au1x00_uart.c is doing the same thing as 8250.c. > > Basically. > > > If I want > > to add extra serial port support by 8250.c. There could be some > > problem. Any idea? > > Don't know, haven't tried it. In general, the au1x00 serial driver needs > to be rewritten. > > Pete > >