On 04.04.2012 20:19, Dave Mielke wrote: > [quoted lines by Vladimir 'φ-coder/phcoder' Serbinenko on 2012/04/04 at 20:10 > +0200] > >> Is it known that the port is on PCI? On yeeloong few devices internal to >> CPU use alternate base address. > Unfortunately, I'm really only familiar with the x86 architecture (and, way > back, IBM mainframes). The ports are used for 8250 UART control when the > system > doesn't provide its own way of doing something. We'd be passing in the port > number as fetched from the serial device, with the appropiate offset (for > MCR, > MSR, etc) added to it. I'd prefer to keep serial code on GRUB side. As I said it's ok to add any additional configure fields you might need. UART on longson may be either on PCI (Geode UART) or in alternate window (on-die UART) >
-- Regards Vladimir 'φ-coder/phcoder' Serbinenko
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