On Mon, 9 Jul 2001, Armin Schindler wrote:
> When I use the standard BIOS which comes with the evaluation board,
> the 'hlt' check is no problem.
It's probably an IRQ problem then. I am pretty sure that the 'hlt' check
counts on the clock interrupt to get it out of the halt. Kernel does a
'hlt' with interrupts enabled, clock interrupt happens, kernel wakes
itself up. Not clock interrupts ==> no wake up.
> Do I have to activate/configure interrupts(controller) stuff
> before the kernel can be started ?
you definitely have to make timer interrupts work right. For 2.2 you don't
have to do much. For 2.4 you only need to do one or two things, but clock
interrupts MUST be done right.
> What I don't understand is, that after the 'hlt' check
> (when check is disabled), everything else works. It seems
> that the kernel expects something set when hlt is checked, and
> afterwards the kernel sets it by itself !?
which kernel version. This is a good description of the kind of things
that happen now. 2.4.x does a lot of work now, but early kernel code still
relies on certain things having been set up, and timer interrupts have
always been a problem.
ron
p.s. Armin if you send me your source tree once it works I will integrate
it by hand.
