On Saturday, January 01, 2011 2:58:12 pm Darmawan Salihun wrote: > > --- On Thu, 12/30/10, Darmawan Salihun <darmawan_sali...@yahoo.com> wrote: > > > From: Darmawan Salihun <darmawan_sali...@yahoo.com> > > Subject: Re: PCI IDE Controller Base Address Register setting > > To: "John Baldwin" <j...@freebsd.org> > > Cc: freebsd-hackers@freebsd.org > > Date: Thursday, December 30, 2010, 3:28 PM > > --- 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 > > > > Silly me that I didn't know about the SFF-8038i standard > (PCI IDE Bus mastering). So, I found out that it seems the > allocation of I/O ports for the IDE controller is just fine. > However, the primary IDE channel is shared between > an IDE interface and a CF card. Moreover, Linux detects > DMA bug, because all drives connected to the interface would be > in PIO mode :-/ > If all drives on the primary channel are "forced" to PIO mode, then > shouldn't the "IDE PCI bus master register" (offset 20h per SFF-8038i) > along with the command register (offset 4h), are set to indicate the > controller doesn't support bus mastering?
This part I cannot help with as much (I'm not familiar with ATA/IDE/SATA specifics). I've cc'd mav@ who has done much of the recent work on our ATA drivers who is probably better able to answer this question. -- John Baldwin _______________________________________________ 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"
