Re: [LinuxBIOS] PIC mode or APIC mode

[Tom Sylla]

Explosion Rev A shipped with SCH430{4,7}. Explosion Rev B has a PC87427 on it.

On 4/13/07, Lu, Yinghai  wrote:
> The MB I got with SCH 4304, and schematic said PC87427...
>
> YH
>
> -----Original Message-----
> From: Beneo [mailto:[e-mail]]
> Sent: Friday, April 13, 2007 11:12 AM
> To: Lu, Yinghai; Peter Stuge; [e-mail]
> Subject: Re: [LinuxBIOS] PIC mode or APIC mode
>
> it is SMSC SCH 4307, I ported some code for that serail, it works.
>
> Beneo
>
> ----- Original Message -----
> From: "Lu, Yinghai" 
> To: "Beneo" ; "Peter Stuge"
> ;
>
> Sent: Friday, April 13, 2007 11:01 AM
> Subject: RE: [LinuxBIOS] PIC mode or APIC mode
>
> Good.
>
> I can not get serial output from that MB, what is your superio on the
> MB?
>
> YH
>
> -----Original Message-----
> From: Beneo [mailto:[e-mail]]
> Sent: Friday, April 13, 2007 10:59 AM
> To: Lu, Yinghai; Peter Stuge; [e-mail]
> Subject: Re: [LinuxBIOS] PIC mode or APIC mode
>
> It is not Blast, it is newer version of Broadcom board, it is called
> Explosion board.
>
> Beneo
>
> ----- Original Message -----
> From: "Lu, Yinghai" 
> To: "Beneo" ; "Peter Stuge"
> ;
>
> Sent: Friday, April 13, 2007 10:54 AM
> Subject: Re: [LinuxBIOS] PIC mode or APIC mode
> > BLAST?
> >
> > That code in the tree should work.
> >
> > YH
> >
> > -----Original Message-----
> > From: [e-mail]
> > [mailto:[e-mail]] On Behalf Of Beneo
> > Sent: Friday, April 13, 2007 10:48 AM
> > To: Peter Stuge; [e-mail]
> > Subject: [LinuxBIOS] PIC mode or APIC mode
> >
> > I was working this Broadcom bcm 5785 based reference board with
> > LinuxBIOS, I
> > have a NIC interrupt related issue, the eth0 DHCP detection always
>
> fail,
> > so
> > I can not get an IP address for that NIC. I did what Peter Stuge
> > suggested
> > to dump the /proc/interrupts. It turns out the Linux is using PIC
>
> mode,
> > not
> > APIC mode. (Linux report multiple CPUs, so I assume Linux took MP
>
> Table
> > somewhat correctly)
> >
> > I checked chipset setting, the APIC indeed is enabled. I don't see
>
> Linux
> > is
> > doing anything for PIC or APIC, I assume Linux kernel will correctly
> > initialize PIC or APIC depends on MP Table reporting. right?
> >
> > If anybody has any idea on why Linux is running at PIC mode, Please
>
> let
> > me
> > know. I will be very appreciated.
> >
> > Thanks
> >
> > Beneo
> >
> > --- LinuxBIOS /proc/interrupts look like this, it is in PIC mode --
> > [root@localhost root]# cat /proc/interrupts
> >           CPU0       CPU1
> >  0:      13538       1521          XT-PIC  timer
> >  1:          0          0          XT-PIC  keyboard
> >  2:          0          0          XT-PIC  cascade
> >  4:        302        153          XT-PIC  serial
> >  8:          1          0          XT-PIC  rtc
> > 14:       4729       1803          XT-PIC  ide0
> > NMI:          0          0
> > LOC:      14778      14897
> > ERR:      21478
> > MIS:          0
> >
> > --- When using factory BIOS, the cat /proc/interrupts looks like this,
> > it is
> > in APIC mode.
> > [root@localhost root]# cat /proc/interrupts
> >           CPU0       CPU1
> >  0:        719       8393    IO-APIC-edge  timer
> >  1:          0          4    IO-APIC-edge  keyboard
> >  2:          0          0          XT-PIC  cascade
> >  4:          5        505    IO-APIC-edge  serial
> >  8:          0          1    IO-APIC-edge  rtc
> > 10:          0          2   IO-APIC-level  ehci-hcd, usb-ohci,
>
> usb-ohci
> > 12:          1          6    IO-APIC-edge  PS/2 Mouse
> > 14:       1433       5111    IO-APIC-edge  ide0
> > 38:          7        112   IO-APIC-level  eth0
> > NMI:          0          0
> > LOC:       9020       8869
> > ERR:          0
> > MIS:          0
> >
> > ----- Original Message -----
> > From: "Peter Stuge" 
> > To: 
> > Sent: Monday, April 09, 2007 10:23 AM
> > Subject: Re: [LinuxBIOS] IDE become readonly, why?
> > > On Mon, Apr 09, 2007 at 10:02:15AM -0700, Beneo wrote:
> > > > For the RTC patch, it is porting for a SMSC SIO, I didn't see
> > > > LinuxBIOS has this SIO porting. The part number is SCH--4703, I
> > > > don't know how to contribute it to LinuxBIOS tree.
> > >
> > > Ahh! It's new code, sorry, forgot that.
> > >
> > > Please have a look at http://linuxbios.org/Development_Guidelines to
> > > learn most if not all you need to know to submit a patch.
> > >
> > > Also, when submitting patches, please make sure they apply cleanly to
> > > the very latest revision of the tree.
> > >
> > > The simplest way to do this is to always keep your own tree updated
> > > by running svn up now and then, or when you see a new revision
> > > announced on the list. After an update, there may be conflicts that
> > > need to be resolved manually by you if you have been working on code
> > > that was also changed in the new revision.
> > > > I haven't get the chance to take look at my NIC issue yet, I will
> > > > certainly check the interrupt when I get the chance.
> > >
> > > Feel free to ask the list if you run into trouble!
> > >
> > > //Peter