some (MPC8313) Freescale patches not in latest kernel

[Norbert van Bolhuis-2]

I'm preparing the latest (2.6.28-rc7) linux kernel for an MPC8313 based project
that's about to start.

Things seems to work great with the base 2.6.28-rc7 kernel. On our MPC8313E-RDB
the kernel boots without problems, ethernet (with eTSEC2/eth1) works and even
eTSEC1/eth0 has a 1gbit link. Most other peripherals seems to work as well, I never
really tried them though.

However, the Freescale MPC8313 BSP (and http://www.bitshrine.org/gpp/) includes a few
patches which I believe I need and/or are useful, for instance:
linux-fsl-2.6.23-MPC8313ERDB-ETSEC27-errata-workaround.patch
linux-fsl-2.6.23-MPC8313ERDB-IEEE-1588.patch
linux-fsl-2.6.23-GIANFAR_PARAMETER_ADJUST.patch
linux-fsl-2.6.23-GIANFAR_SKB_BUFFER_RECYCLING_SUPPORT.patch
linux-fsl-2.6.23-GIANFAR_SKB_BUFFER_RECYCLING_SUPPORT-2.patch

These patches are not in the latest (2.6.28-rc7) linux kernel
nor in any of the powerpc devlopment trees
(e.g. git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc.git)
Of course users like me can simply check out the patches and apply them
if needed for the project.
Before I do that I would just like to understand why they're not in.
They're not MPC8313(-RDB) specific and they seem very useful to me.

Is it lack of time/importance ?



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[Kumar Gala-3]

On Dec 10, 2008, at 8:00 AM, Norbert van Bolhuis wrote:

>
> I'm preparing the latest (2.6.28-rc7) linux kernel for an MPC8313  
> based project
> that's about to start.
>
> Things seems to work great with the base 2.6.28-rc7 kernel. On our  
> MPC8313E-RDB
> the kernel boots without problems, ethernet (with eTSEC2/eth1) works  
> and even
> eTSEC1/eth0 has a 1gbit link. Most other peripherals seems to work  
> as well, I never
> really tried them though.
>
> However, the Freescale MPC8313 BSP (and http://www.bitshrine.org/ 
> gpp/) includes a few
> patches which I believe I need and/or are useful, for instance:
> linux-fsl-2.6.23-MPC8313ERDB-ETSEC27-errata-workaround.patch
> linux-fsl-2.6.23-MPC8313ERDB-IEEE-1588.patch
> linux-fsl-2.6.23-GIANFAR_PARAMETER_ADJUST.patch
> linux-fsl-2.6.23-GIANFAR_SKB_BUFFER_RECYCLING_SUPPORT.patch
> linux-fsl-2.6.23-GIANFAR_SKB_BUFFER_RECYCLING_SUPPORT-2.patch
>
> These patches are not in the latest (2.6.28-rc7) linux kernel
> nor in any of the powerpc devlopment trees
> (e.g. git://git.kernel.org/pub/scm/linux/kernel/git/paulus/
> powerpc.git)
> Of course users like me can simply check out the patches and apply  
> them
> if needed for the project.
> Before I do that I would just like to understand why they're not in.
> They're not MPC8313(-RDB) specific and they seem very useful to me.
>
> Is it lack of time/importance ?

Simply put the reason is that some of these patches have never been  
posted to the open source for acceptance into the kernel.  I would  
suggest requesting that of Freescale through whatever sales contact  
you have.

- k
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