Re: [LinuxBIOS] PIC mode or APIC mode

[Beneo]

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