On 09/30/2009 08:44 PM, ron minnich wrote:
On Wed, Sep 30, 2009 at 5:11 PM, Stefan Reinauerstepan@coresystems.de wrote:
:-) Nice
Sorry. I just assumed nobody would even care about this antique. Hope no one is too annoyed by the self-ack.
/* operate on undocumented device */Can you dump the pci config space or read the pci id of that device?
no, because the Dell BIOS turns it completely off.
/* ACPI base address */pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x40, 0x800);bit 0 is hard wired to 1 so it doesn't matter much I guess.
yes, I'm cloning what they do by watching IO with serialice. They did not read it and or it in in this one case.
Very cool, I have yet to play with serialice. If your watching IO then how do you know what the PCI regs are doing? If I could use serialice to capture PCI regs, it would solve alot of mysteries....
Or are you just using serialice to capture ACPI read/writes?
lotsa magic bits here. This is a really old part so I'm a little surprised. Not too much, any more.
Going to have a long delay now while I convert to CAR. Also having a meeting in 2 weeks that may kill the whole project.
bummer....would you continue it for personal interest?
---------------------------
- /* ACPI control */
- w = inw(0x868);
- outw(w|0x800, 0x868);
- w = inw(0x866);
- outw(w|2, 0x866);
This is something in the TCO area, probably disabling the watchdog
Nice! If the TCO timer is not disabled you will reboot for ever....I beleive the OS re-enables it?