On Sat, 12 May 2007 21:35:58 +0200 Lee Garrett <[email protected]> wrote:
> Truxton Fulton wrote:
> > Hi,
> >
> > I verified on my IDEQ210M that performing the old reboot sequence
> > followed by the new reboot sequence works for me, and I suspect that
> > it will work for Lee also. Like this :
> >
> > /* old method, works on most machines */
> > for (i = 0; i < 100; i++) {
> > kb_wait();
> > udelay(50);
> > outb(0xfe, 0x64); /* pulse reset low */
> > udelay(50);
> > }
> >
> > /* new method, sets the "System flag" which when set,
> > indicates successful completion of the keyboard controller
> > self-test (Basic Assurance Test, BAT). This is needed
> > for some machines with no keyboard plugged in */
> > for (i = 0; i < 100; i++) {
> > kb_wait();
> > udelay(50);
> > outb(0x60, 0x64); /* write Controller Command Byte */
> > udelay(50);
> > kb_wait();
> > udelay(50);
> > outb(0x14, 0x60); /* set "System flag" */
> > udelay(50);
> > kb_wait();
> > udelay(50);
> > outb(0xfe, 0x64); /* pulse reset low */
> > udelay(50);
> > }
> >
> > Thanks,
> >
> > -Truxton
>
> Hello everyone,
>
> I compiled a 2.6.21.1 kernel with Truxton's suggestion mentioned
> above. My laptop reboots normally with it. For convenience I've
> diffed a patch, which is appended to this mail.
>
OK, thanks.
So that are we doing here? We try the pre-Truxton code and if that didn't
work we try the post-Truxton code? Hard to see how that could go wrong.
Truxton, can you please test it for us?
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