kernel 2.6.15-rc5-latest doesn't work anymore on mpc8540ads

kernel 2.6.15-rc5-latest doesn't work anymore on mpc8540ads

[Clemens Koller]

Hello,

I am just about to update my kernel from 2.6.13-rc7 which is working
fine to linus' 2.6.15-rc5-latest git on my mpc8540ads flavored board.
However, the kernel hangs pretty early after

openpic: exit

any ideas or a hint what's wrong there... before I start to
debug deeper into the code?

Thanks,

Clemens

-----8<-----
U-Boot 1.1.3 (Jun 23 2005 - 10:40:01)

CPU:   8540, Version: 2.0, (0x80300020)
Core:  E500, Version: 2.0, (0x80200020)
Clocks Configuration:
       CPU: 825 MHz, CCB: 330 MHz,
       DDR: 165 MHz, LBC:  82 MHz
L1:    D-cache 32 kB enabled
       I-cache 32 kB enabled
Board: MicroSys PM854
    PCI1: 32 bit, 66 MHz (compiled)
I2C:   ready
DRAM:  Initializing
    DDR: 256 MB
FLASH: 32 MB
L2:    256 kB enabled
In:    serial
Out:   serial
Err:   serial
Net:   ENET0: PHY is Marvell 88E1111S (1410cc2)
ENET1: PHY is Marvell 88E1111S (1410cc2)
ENET2: PHY is LXT971 (1378e2)
ENET0, ENET1, ENET2
Hit any key to stop autoboot:  0
## Booting image at fe300000 ...
   Image Name:   Linux-2.6.15-rc5-g7116317d
   Created:      2005-12-16  15:30:40 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1394968 Bytes =  1.3 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
mpc8540ads_init(): exit
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:setio
MMU:exit
setup_arch: enter
setup_arch: bootmem
mpc8540ads_setup_arch()
arch: exit
openpic: enter
openpic: timer
openpic: external
openpic: spurious
openpic: exit

-----8<----

-- 
Clemens Koller
_______________________________
R&D Imaging Devices
Anagramm GmbH
Rupert-Mayer-Str. 45/1
81379 Muenchen
Germany

http://www.anagramm.de
Phone: +49-89-741518-50
Fax: +49-89-741518-19

Re: kernel 2.6.15-rc5-latest doesn't work anymore on mpc8540ads

[Clemens Koller]

Hello!

Here is a little update:

> I am just about to update my kernel from 2.6.13-rc7 which is working
> fine to linus' 2.6.15-rc5-latest git on my mpc8540ads flavored board.
> However, the kernel hangs pretty early after
> 
> openpic: exit

openpic_init() is called by mpc85xx_ads_init_IRQ in ppc/platforms/85xx

ppc_md.init_IRQ=mpc85xx_ads_init_IRQ in ppc/platforms/85xx

ppc_md.init_IRQ() is called from powerpc/kernel/irq.c

init_IRQ() is  called from init/main.c:start_kernel()

and that seems to work fine. So, it crashes silently somewhere
after that point. I try to build 2.6.15-rc6-latest with kgbd support,
not knowing if it's supposed to work on this platform.

Are there some open issues from the ppc->powerpc migration?

Thanks,
-- 
Clemens Koller
_______________________________
R&D Imaging Devices
Anagramm GmbH
Rupert-Mayer-Str. 45/1
81379 Muenchen
Germany

http://www.anagramm.de
Phone: +49-89-741518-50
Fax: +49-89-741518-19

Re: kernel 2.6.15-rc5-latest doesn't work anymore on mpc8540ads

[Kumar Gala]

On Mon, 19 Dec 2005, Clemens Koller wrote:

> Hello!
> 
> Here is a little update:
> 
> > I am just about to update my kernel from 2.6.13-rc7 which is working
> > fine to linus' 2.6.15-rc5-latest git on my mpc8540ads flavored board.
> > However, the kernel hangs pretty early after
> > 
> > openpic: exit
> 
> openpic_init() is called by mpc85xx_ads_init_IRQ in ppc/platforms/85xx
> 
> ppc_md.init_IRQ=mpc85xx_ads_init_IRQ in ppc/platforms/85xx
> 
> ppc_md.init_IRQ() is called from powerpc/kernel/irq.c
> 
> init_IRQ() is  called from init/main.c:start_kernel()
> 
> and that seems to work fine. So, it crashes silently somewhere
> after that point. I try to build 2.6.15-rc6-latest with kgbd support,
> not knowing if it's supposed to work on this platform.

It was a guess :)
 
> Are there some open issues from the ppc->powerpc migration?

possible, can you use git bisect to find what commit may have caused the 
issue?

- kumar

Re: kernel 2.6.15-rc5-latest doesn't work anymore on mpc8540ads

[Carlos Mitidieri]

Hi,
Has the knowledge about this issue advanced?
What I have noticed so far is that the same happens in 2.6.14, therefore the 
problem rose in the transition from 2.6.13.
Would this be related to the IRQ stuff initialization? Any guess?

On Monday 19 December 2005 21:38, Kumar Gala wrote:
> On Mon, 19 Dec 2005, Clemens Koller wrote:
> > Hello!
> >
> > Here is a little update:
> > > I am just about to update my kernel from 2.6.13-rc7 which is working
> > > fine to linus' 2.6.15-rc5-latest git on my mpc8540ads flavored board.
> > > However, the kernel hangs pretty early after
> > >
> > > openpic: exit
> >
> > openpic_init() is called by mpc85xx_ads_init_IRQ in ppc/platforms/85xx
> >
> > ppc_md.init_IRQ=mpc85xx_ads_init_IRQ in ppc/platforms/85xx
> >
> > ppc_md.init_IRQ() is called from powerpc/kernel/irq.c
> >
> > init_IRQ() is  called from init/main.c:start_kernel()
> >
> > and that seems to work fine. So, it crashes silently somewhere
> > after that point. I try to build 2.6.15-rc6-latest with kgbd support,
> > not knowing if it's supposed to work on this platform.
>
> It was a guess :)
>
> > Are there some open issues from the ppc->powerpc migration?
>
> possible, can you use git bisect to find what commit may have caused the
> issue?
>
> - kumar
>
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded

-- 
Carlos Mitidieri

Re: kernel 2.6.15-rc5-latest doesn't work anymore on mpc8540ads

[Carlos Mitidieri]

Hi,
The kernel actually hangs when schedule() is called in rest_init() in main.c
Would someone risk a guess ?
(keeping the walk...) Thanks,

On Monday 19 December 2005 18:25, Clemens Koller wrote:
> Hello!
>
> Here is a little update:
> > I am just about to update my kernel from 2.6.13-rc7 which is working
> > fine to linus' 2.6.15-rc5-latest git on my mpc8540ads flavored board.
> > However, the kernel hangs pretty early after
> >
> > openpic: exit
>
> openpic_init() is called by mpc85xx_ads_init_IRQ in ppc/platforms/85xx
>
> ppc_md.init_IRQ=mpc85xx_ads_init_IRQ in ppc/platforms/85xx
>
> ppc_md.init_IRQ() is called from powerpc/kernel/irq.c
>
> init_IRQ() is  called from init/main.c:start_kernel()
>
> and that seems to work fine. So, it crashes silently somewhere
> after that point. I try to build 2.6.15-rc6-latest with kgbd support,
> not knowing if it's supposed to work on this platform.
>
> Are there some open issues from the ppc->powerpc migration?
>
> Thanks,

-- 
Best regards,
Carlos Mitidieri