--- On Tue, 12/28/10, John Baldwin <j...@freebsd.org> wrote: > From: John Baldwin <j...@freebsd.org> > Subject: Re: PCI IDE Controller Base Address Register setting > To: "Darmawan Salihun" <darmawan_sali...@yahoo.com> > Cc: freebsd-hackers@freebsd.org > Date: Tuesday, December 28, 2010, 2:22 PM > On Tuesday, December 28, 2010 2:10:59 > pm Darmawan Salihun wrote: > > Hi, > > > > --- On Tue, 12/28/10, John Baldwin <j...@freebsd.org> > wrote: > > > > > From: John Baldwin <j...@freebsd.org> > > > Subject: Re: PCI IDE Controller Base Address > Register setting > > > To: "Darmawan Salihun" <darmawan_sali...@yahoo.com> > > > Cc: freebsd-hackers@freebsd.org > > > Date: Tuesday, December 28, 2010, 1:52 PM > > > On Tuesday, December 28, 2010 1:38:05 > > > pm Darmawan Salihun wrote: > > > > Hi, > > > > > > > > --- On Tue, 12/28/10, John Baldwin <j...@freebsd.org> > > > wrote: > > > > > > > > > From: John Baldwin <j...@freebsd.org> > > > > > Subject: Re: PCI IDE Controller Base > Address > > > Register setting > > > > > To: freebsd-hackers@freebsd.org > > > > > Cc: "Darmawan Salihun" <darmawan_sali...@yahoo.com> > > > > > Date: Tuesday, December 28, 2010, 10:20 > AM > > > > > On Monday, December 27, 2010 6:07:35 > > > > > am Darmawan Salihun wrote: > > > > > > Hi, > > > > > > > > > > > > I'm trying to install FreeBSD 8.0 > on AMD > > > Geode LX800 > > > > > (CS5536 "southbridge"). > > > > > However, it cannot detect the IDE > controller (in > > > the > > > > > CS5536) correctly. It > > > > > says something similar to this: > > > > > > "IDE controller not present" > > > > > > > > > > Hmm, I can't find a message like that > > > anywhere. Can > > > > > you get the exact message > > > > > you are seeing? > > > > > > > > > > > > > It says: > > > > > > > > "No disks found! Please verify that your > disk > > > controller is being properly > > > > probed at boot time." > > > > > > Oh, so this is a message from the > installer. Can you > > > capture a verbose dmesg > > > via a serial console perhaps? > > > > I'm not sure if I can do this because I've tried a > couple of times > > but nothing comes out of the serial console. Perhaps a > wrong baud rate setting? > > I set it to 96bps and 8-N-1 back then. Is that > correct? > > Yes, that should be correct. You have to turn the > console on however (it is > not enabled by default). The simplest way to do this > is probably to hit the > key option to break into the loader prompt when you see the > boot menu (I think > it is option '6'). Then enter 'boot -D' at the 'OK' > prompt. This should boot > with both the video and serial consoles enabled with the > video console as the > primary console. For a verbose boot, use 'boot -Dv' >
Thanks, I tested this option and it worked. I could see the debugging messages. FreeBSD cannot detect the disk in all of the IDE interfaces. (The AMDCS5536 only implemented the primary channel) Anyway, I manage to change the mapping in BAR4 of the IDE controller. However, I'm confused as to how to "force" FreeBSD to recognize the IDE controller to work only in compatibility mode. Because, I'm not sure if the physical IDE controller chip supports Native-PCI mode correctly at all. If I set BAR4 to "disabled"(i.e. not decoding any I/O addresses at all), would FreeBSD use compatibility mode? or would it consider the IDE controller not present? Here's some notes about the IDE controller PCI configuration registers: 1. The Programming Interface register contains 80h (which means _only_ compatibility mode supported). I have yet to be able to write new values into this register. That's the state of the register right now. I noticed in your previous reply that for FreeBSD to be forced to use compatibility mode, the programming interface register bits in the PCI configuration register must be set accordingly (I suppose the bits in the lower nibble). 2. BAR0-BAR3 cannot be changed and contains 00h. I have yet to experiment with BAR5.The default value is 00h Thanks in advance, Darmawan _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
