Linux on Force Computers CPCI-3750

Linux on Force Computers CPCI-3750

[luca gambazzi]

Hi

As suggested, i've tried to compile the penguingppc.org linux kernel for
my CPCI-3750.

I've got still 2 problems:

with the 2.4 tree (stable and devel) the make znetboot.initrd return an
error here:

powerpc-linux-gcc -D__KERNEL__ -I/usr/local/src/linux-2.4-rsync/include
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing
-fno-common -fomit-frame-pointer
-I/usr/local/src/linux-2.4-rsync/arch/ppc -fsigned-char -msoft-float
-pipe -ffixed-r2 -Wno-uninitialized -mmultiple -mstring   -nostdinc
-iwithprefix include -DKBUILD_BASENAME=cputable  -c -o cputable.o
cputable.c
cputable.c:179: `CPU_FTR_HAS_HIGH_BATS' undeclared here (not in a
function)
[...]

in the 2.5 tree the compile works fine, but when boots i've got this
error:

[...]
RAMDISK: Compressed image found at block 0
Oops: kernel access of bad area, sig: 11 [#1]
NIP: C00154D4 LR: C000C9D0 SP: C0ACBD50 REGS: c0acbca0 TRAP: 0301    Not
tainted
MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 00000000, DSISR: 42000000
TASK = c0acc060[1] 'swapper' Last syscall: 6
GPR00: 00001032 C0ACBD50 C0ACC060 C01B7C0C C0ACBD58 00000000 C0ACBD68
0000000A
GPR08: FFFFFFFF C0ACBD64 00000000 00009032 2010C048
Call trace: [c008c528]  [c008c788]  [c0079660]  [c00fd258]  [c0048bd8]
[c0048af0]  [c004723c]  [c0047300]  [c00077d4]  [c000a544]  [c01cba04
Kernel panic: Attempted to kill init!

i'm not a CS student,... just an electronic student. so i don't
understand what to do to resolve this error. I've used a working ramdisk
image from timesys.com, so the error is in my kernel.

i've tryed to incrase the ramdisk dimension (the ramdisk i use is 8192)
but still the same problem

can anybody give me an advice?
here can you find a boot log http://lsa1pc32.epfl.ch/~gamba/boot.txt
thanks a lot
luca gambazzi


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Re: Linux on Force Computers CPCI-3750

[Tom Rini]

On Sat, Mar 29, 2003 at 03:55:41PM +0100, luca gambazzi wrote:
>
> Hi
>
> As suggested, i've tried to compile the penguingppc.org linux kernel for
> my CPCI-3750.
>
> I've got still 2 problems:
>
> with the 2.4 tree (stable and devel) the make znetboot.initrd return an
> error here:
>
> powerpc-linux-gcc -D__KERNEL__ -I/usr/local/src/linux-2.4-rsync/include
> -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing
> -fno-common -fomit-frame-pointer
> -I/usr/local/src/linux-2.4-rsync/arch/ppc -fsigned-char -msoft-float
> -pipe -ffixed-r2 -Wno-uninitialized -mmultiple -mstring   -nostdinc
> -iwithprefix include -DKBUILD_BASENAME=cputable  -c -o cputable.o
> cputable.c
> cputable.c:179: `CPU_FTR_HAS_HIGH_BATS' undeclared here (not in a
> function)
> [...]

This was just recently fixed.  Please update your tree.

> in the 2.5 tree the compile works fine, but when boots i've got this
> error:
>
> [...]
> RAMDISK: Compressed image found at block 0
> Oops: kernel access of bad area, sig: 11 [#1]
> NIP: C00154D4 LR: C000C9D0 SP: C0ACBD50 REGS: c0acbca0 TRAP: 0301    Not
> tainted
> MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11
> DAR: 00000000, DSISR: 42000000
> TASK = c0acc060[1] 'swapper' Last syscall: 6
> GPR00: 00001032 C0ACBD50 C0ACC060 C01B7C0C C0ACBD58 00000000 C0ACBD68
> 0000000A
> GPR08: FFFFFFFF C0ACBD64 00000000 00009032 2010C048
> Call trace: [c008c528]  [c008c788]  [c0079660]  [c00fd258]  [c0048bd8]
> [c0048af0]  [c004723c]  [c0047300]  [c00077d4]  [c000a544]  [c01cba04
> Kernel panic: Attempted to kill init!
>
> i'm not a CS student,... just an electronic student. so i don't
> understand what to do to resolve this error. I've used a working ramdisk
> image from timesys.com, so the error is in my kernel.
>
> i've tryed to incrase the ramdisk dimension (the ramdisk i use is 8192)
> but still the same problem
>
> can anybody give me an advice?
> here can you find a boot log http://lsa1pc32.epfl.ch/~gamba/boot.txt
> thanks a lot

Can you please put the .config you used up?  Thanks.

--
Tom Rini
http://gate.crashing.org/~trini/

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Re: Linux on Force Computers CPCI-3750 eth drivers

[luca gambazzi]

Hi

i'm still trying to bild a running linux kernel for a Force Computers
CPCI-3750.

I've got one more error, the ethernet card doesn't work.
is a Digital DS21143 Tulip

i've installed the kernel drivers (i've tried with 2.4 and 2.5
penguinppc kernel tree), and the drivers found in
http://sourceforge.net/projects/tulip, but the error is always the same.

NETDEV WATCHDOG: eth0: transmit timed out

here can you find a bootlog (kernelboot.txt), the tcpdump on my pc, and
the .config file I used in this case (config_2_5_66.txt)

http://lsa1pc32.epfl.ch/~gamba/robox/

Maybe somebody has experence with this kind of error and can help me.

Thanks a lot
Luca Gambazzi

PS Tom: I don't find the .config file who caused the crash I've posted
last week, i'll search in my pc, sorry


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Re: Linux on Force Computers CPCI-3750 eth drivers

[Tom Rini]

On Fri, Apr 04, 2003 at 01:49:13PM +0200, luca gambazzi wrote:

> Hi
>
> i'm still trying to bild a running linux kernel for a Force Computers
> CPCI-3750.
>
> I've got one more error, the ethernet card doesn't work.
> is a Digital DS21143 Tulip
>
> i've installed the kernel drivers (i've tried with 2.4 and 2.5
> penguinppc kernel tree), and the drivers found in
> http://sourceforge.net/projects/tulip, but the error is always the same.
>
> NETDEV WATCHDOG: eth0: transmit timed out
>
> here can you find a bootlog (kernelboot.txt), the tcpdump on my pc, and
> the .config file I used in this case (config_2_5_66.txt)

Don't use CONFIG_TULIP, use CONFIG_DE4X5 and poke the upstream authors
abotu this issue.

--
Tom Rini
http://gate.crashing.org/~trini/

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Re: Linux on Force Computers CPCI-3750 eth drivers

[Matt Porter]

On Fri, Apr 04, 2003 at 01:49:13PM +0200, luca gambazzi wrote:
>
> Hi
>
> i'm still trying to bild a running linux kernel for a Force Computers
> CPCI-3750.
>
> I've got one more error, the ethernet card doesn't work.
> is a Digital DS21143 Tulip
>
> i've installed the kernel drivers (i've tried with 2.4 and 2.5
> penguinppc kernel tree), and the drivers found in
> http://sourceforge.net/projects/tulip, but the error is always the same.
>
> NETDEV WATCHDOG: eth0: transmit timed out

Assuming you are booting with the pcore kernel, are you sure that
the pci interrupt routing for the 3750 is identical to the 6750?

Regards,
--
Matt Porter
porter@cox.net
This is Linux Country. On a quiet night, you can hear Windows reboot.

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Re: Linux on Force Computers CPCI-3750 eth drivers

[luca gambazzi]

Hi Matt

I'm booting with the pcore kernel.

the pcore_find_bridges function in pcore_pci.c recognize my card as a
6750, but the 3750 uses a 21150 bridge and not a 21154.

Do you know where can i find documentation to solve this problem?
and where I have to modify?

here you can find the bios log, maybe you can find an answer.
http://lsa1pc32.epfl.ch/~gamba/robox/

Thanks a lot
luca


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Re: Linux on Force Computers CPCI-3750 eth drivers

[Matt Porter]

On Wed, Apr 09, 2003 at 11:22:49AM +0200, luca gambazzi wrote:
> I'm booting with the pcore kernel.
>
> the pcore_find_bridges function in pcore_pci.c recognize my card as a
> 6750, but the 3750 uses a 21150 bridge and not a 21154.

That makes sense.  When I did the port I had a 6750 and 680.  They
are very similar but Force is too stupid to provide a method to
uniquely identify a board at runtime.  So, you see the kludge where
anything booting a pcore kernel that has an MPC106 is a 6750 and
if it has a MPC107 then it must be a 680.

> Do you know where can i find documentation to solve this problem?
> and where I have to modify?

Talk to Force.  You need the 3750 manual.  I suspect that it has
different interrupt routing than the 6750.  Right now, you are
picking up the pcore_6750_map_irq table which has irq 10 for the
on-board tulip.  More than likely it's routed to a different input
on the 3750.  You would create a pcore_3750_map_irq, and provide
some way to uniquely identify that you are on a 3750 and have the
kernel use that map_irq function.

> here you can find the bios log, maybe you can find an answer.
> http://lsa1pc32.epfl.ch/~gamba/robox/

Definitely looks like pci interrupt routing is incorrect.  tulip
driver isn't getting interrupts.  One warning, once you get
3750 docs...don't trust them, they are often incorrect. :)

When you get this working, please post a patch so it can be
incorporated.  Good luck.

Regards,
--
Matt Porter
porter@cox.net
This is Linux Country. On a quiet night, you can hear Windows reboot.

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Re: Linux on Force Computers CPCI-3750 eth drivers

[Matt Porter]

On Wed, Apr 09, 2003 at 11:22:49AM +0200, luca gambazzi wrote:
> Hi Matt
>
> I'm booting with the pcore kernel.
>
> the pcore_find_bridges function in pcore_pci.c recognize my card as a
> 6750, but the 3750 uses a 21150 bridge and not a 21154.
>
> Do you know where can i find documentation to solve this problem?
> and where I have to modify?

Oh, I should have mentioned the shotgun alternative to waiting on docs
from Force.  Assume that the 3750 uses cascade irqs 9-12 for all pci
interrupts just like the 6750.  Try changing the 6750 tulip map_irq
entry to be 9,11,12 and see if any work.

BTW, saw your list of devices in the /proc/pci dump.  Looks like a
fun project. :)

Regards,
--
Matt Porter
porter@cox.net
This is Linux Country. On a quiet night, you can hear Windows reboot.

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Re: Linux on Force Computers CPCI-3750 eth drivers

[luca gambazzi]

hi matt

as you said the problem was on the eth card irq,... the irq is 9.
i prepear a patch and i'll send you in next days.

happy weekend
luca

On Wed, 2003-04-09 at 17:22, Matt Porter wrote:
> On Wed, Apr 09, 2003 at 11:22:49AM +0200, luca gambazzi wrote:
> > Hi Matt
> >
> > I'm booting with the pcore kernel.
> >
> > the pcore_find_bridges function in pcore_pci.c recognize my card as a
> > 6750, but the 3750 uses a 21150 bridge and not a 21154.
> >
> > Do you know where can i find documentation to solve this problem?
> > and where I have to modify?
>
> Oh, I should have mentioned the shotgun alternative to waiting on docs
> from Force.  Assume that the 3750 uses cascade irqs 9-12 for all pci
> interrupts just like the 6750.  Try changing the 6750 tulip map_irq
> entry to be 9,11,12 and see if any work.
>
> BTW, saw your list of devices in the /proc/pci dump.  Looks like a
> fun project. :)
>
> Regards,


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