[LinuxBIOS] alix 1c is stuck on this problem

Tom Sylla tsylla at gmail.com
Tue Oct 16 01:23:37 CEST 2007

ron minnich wrote:
> On 10/15/07, Jordan Crouse <jordan.crouse at amd.com> wrote:
>> What are you trying to do?
> I load linuxbios, and alix1c runs for 3-4 seconds and turns off. I am
> convinced it is something in PM hardware, just don't know what.
> Here are the settings we make
> static void cs5536_setup_power_button(void)
> {
> 	/*      Power Button Setup */
> 	outl(0x40020000, PMS_IO_BASE + 0x40);

I don't understand. You *are* doing that write to FSD? That is causing 
your problem. The 0x40020000 enables the power button fail-safe for 
exactly 4 seconds. I would think it should be 0x80000000 for a system 
with no power button. (lock the power button disabled)

In another mail, you mentioned the the power button is unconnected. That 
isn't valid, the input needs a button and pullup, or it needs to be 
grounded (see the "skip" feature in the datasheet)

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