str = 0; /* to keep gcc shut... */
switch (status & PCI_STATUS_DEVSEL_MASK) {
case PCI_STATUS_DEVSEL_FAST: str = "Fast devsel. "; break;
case PCI_STATUS_DEVSEL_MEDIUM: str = "Medium devsel. "; break;
case PCI_STATUS_DEVSEL_SLOW: str = "Slow devsel. "; break;
}
Anyway .. the Ramix PMC551 is a PCI Ram card, and before the dram has been
initialized by the device driver the cards onboard memory is in a
write-protected state, which means that when linux goes to configure the
device the device asserts DEVSEL to all high. Unfortunately this case
statement has no default: tag so while the card was in the system a simple
without the driver loaded 'cat /proc/pci' would cause a kernel panic. Also ..
the whole str = 0; at the beginning of that only causes gcc to complain
because the switch has no default. I sent email to Martin Mares about this
but havn't gotten a response back. I am sorta amazed that this problem didn't
show up earlier really.
Okay .. with that mess of crap said I also have one question .. since this is
a cPCI Ram device .. I am hoping to implement it as a full block device in the
system so that it can be used as either a psuedo drive device or swap space or
both. Should I use the /dev/hd* namespacing for the device or should it be
assigned some new namespacing?
--
"That is precisely what common sense is for, to be jarred into
uncommon sense."
++ Eric Temple Bell, Mathmatics: Queen of the Sciences
Mark Ferrell : Major'Trips'
Lead Programmer : Chaotic Dreams Development Team
URL : http://www.planetquake.com/chaotic
E-Mail : major@planetquake.com
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