John Birrell wrote: > On Mon, Sep 01, 2003 at 05:29:09PM -0600, Scott Long wrote: > >>At one time I was working on patches to the loader to make the console >>speed configurable. At the time, at least, I didn't see any evidence >>that the settings were stored in the boot0 block, but maybe I was wrong. > > > AFAIK, the boot0 block uses bios int 0x16 to get a key-press and bios int > 0x10 to display a character, so in a situation where you *want* a serial > console, the F1 etc stuff can't be used unless the bios supports console > re-direction. And you have to live with whatever baud rate the bios sets. > > Once you get to boot2, then the serial console can work if set in /boot.config. > > It would be nice to have a boot.config setting for the baud rate. I have a > board here that allows bios re-direction to either the first or second serial > port at a fixed baud rate of 38400. I have to build boot2 with > BOOT_COMCONSOLE_SPEED=38400, and then the kernel with CONSPEED=38400 to > get all the ducks in a row. > > But it would be even nicer if both boot2 and the kernel would just work with > whatever baud rate the bios set. > This is exactly the problem that I was working on. ScottReceived on Mon Sep 01 2003 - 15:24:03 UTC
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