seeking advise on porting custom PPC platform (in my case it is variant of 8xx ) from Linux 2.4.(.26) to Linux 2.6(.10-rc3)

seeking advise on porting custom PPC platform (in my case it is variant of 8xx ) from Linux 2.4.(.26) to Linux 2.6(.10-rc3)

[Povolotsky, Alexander]

Hi,

In Linux 2.6 I see the new directory arch/ppc/syslib, which does not exist
in Linux 2.4(.26).
I would GREATLY APPRECIATE if Tom or Dan (or someone else) could explain
what are the reasons for creating this new directory and describe on what
basis existing
Linux 2.4 files went there and why  ... 
and if there any new files (vs Linux 2.4) were created in that new directory
?  

In general, I am seeking advise on porting PPC platform
(in my case it isvariant of 8xx ) from Linux 2.4.(.26) to Linux
2.6(.10-rc3).
 Did anyone created howto document on this subject ?

Thanks,

Alex

Re: seeking advise on porting custom PPC platform (in my case it is variant of 8xx ) from Linux 2.4.(.26) to Linux 2.6(.10-rc3)

[Kumar Gala]

Alex,

Its my understanding that code moved out of arch/ppc/platforms and=20
arch/ppc/kernel in 2.4 into arch/ppc/syslib.  The code in 'syslib'=20
deals with items that are not directly related with the CPU cores=20
(arch/ppc/kernel) or with board issues (arch/ppc/platforms).  Any code=20=

that is generic for a number of systems should be in arch/ppc/syslib. =20=

So code managing pci, interrupt controllers, generic system setup, etc=20=

lives in arch/ppc/syslib.

The transition predates my work with 2.6, I would guess that Paul M.=20
was influential in this change.

If you are just doing a board port then your files should end up in=20
arch/ppc/platforms.  It should be rare that you would need to touch=20
anything in arch/ppc/syslib.

- kumar

On Dec 24, 2004, at 11:05 AM, Povolotsky, Alexander wrote:

> Hi,
>
> In Linux 2.6 I see the new directory arch/ppc/syslib, which does not=20=

> exist
>  in Linux 2.4(.26).
>  I would GREATLY APPRECIATE if Tom or Dan (or someone else) could=20
> explain
>  what are the reasons for creating this new directory and describe on=20=

> what
>  basis existing
>  Linux 2.4 files went there and why=A0 ...
> and if there any new files (vs Linux 2.4) were created in that new=20
> directory
>  ?=A0
>
>  In general, I am seeking advise on porting PPC platform
>  (in my case it isvariant of 8xx ) from Linux 2.4.(.26) to Linux
>  2.6(.10-rc3).
>  =A0Did anyone created howto document on this subject ?
>
> Thanks,
>
> Alex
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