Re: Linux Post codes during runtime, possibly OT

Manfred Spraul
2001-01-26T15:43:11Z

> + *
> + * Changed the slow-down I/O port from 0x80 to 0x19. 0x19 is a
> + * DMA controller scratch register. rjohnson@analogic.com
> */
>
What about making that a config option?

default: delay with 'outb 0x80', other options could be
udelay(n); (n=1,2,3)
outb 0x19

0x80 is a safe port, and IMHO changing the port on all i386 systems
because it's needed for some embedded system debuggers is too dangerous.

--
Manfred