USB on MPC8641D

USB on MPC8641D

[John Marc]

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Hi Everybody,
  I find this forum very much useful for the people who are working with powerpc's , and i am the one of them.Actually one more thing that make me to join this forum is my interest towards the Freescale MPC8641d board :-). I found that Freescale recently uploaded the linux BSP for MPC8641D board. One of the thing new in this BSP is USB driver.
   
  At Ozlabs I found various patches for MPC8641D board,Most of then are regarding the PCI Express fixes, Some patches of ULI1575 chip, but my main concern is USB.
   
  Can amyone help me out to find , what are the changes that freescale does for the USB drivers. I tried to search a lot for USB patch, but my bad luck , i don't find anything.
   
  It would be a great help if anyone help me out to find what are the changes that freescale does for USB driver. 
   
  Thanks
  John

       
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Re: USB on MPC8641D

[Kumar Gala]

On Apr 16, 2008, at 1:48 PM, John Marc wrote:
> Hi Everybody,
> I find this forum very much useful for the people who are working  
> with powerpc's , and i am the one of them.Actually one more thing  
> that make me to join this forum is my interest towards the Freescale  
> MPC8641d board :-). I found that Freescale recently uploaded the  
> linux BSP for MPC8641D board. One of the thing new in this BSP is  
> USB driver.
>
> At Ozlabs I found various patches for MPC8641D board,Most of then  
> are regarding the PCI Express fixes, Some patches of ULI1575 chip,  
> but my main concern is USB.
>
> Can amyone help me out to find , what are the changes that freescale  
> does for the USB drivers. I tried to search a lot for USB patch, but  
> my bad luck , i don't find anything.
>
> It would be a great help if anyone help me out to find what are the  
> changes that freescale does for USB driver.

There shouldn't be any, but if you have a BSP from Freescale you  
should have patches to that kernel as well.

We should be using the stock USB driver for the ULI chipset.  (I  
forget if its ehci/ohci/uchi).

- k

Re: USB on MPC8641D

[John Marc]

Hi 
I Have the kernel patches , but no one for the USB.
The changes for the USB are integrated in the Kernel.
I am currently looking into the linux BSP for usb
changes , but unfortunately don't find any major
chages. 

MPC8641 board have one EHCI controller and 3 OHCI
conroller.

As I am also new to USB , it would be great help, if
someone give me any idea about the changes in new
MPC8641 BSP ?

Does freescale fix the PCI Express issue , that makes
USB works.  

I have lots of hope with this forum :-)


With Regards
John 


--- Kumar Gala <galak@kernel.crashing.org> wrote:

> 
> On Apr 16, 2008, at 1:48 PM, John Marc wrote:
> > Hi Everybody,
> > I find this forum very much useful for the people
> who are working  
> > with powerpc's , and i am the one of them.Actually
> one more thing  
> > that make me to join this forum is my interest
> towards the Freescale  
> > MPC8641d board :-). I found that Freescale
> recently uploaded the  
> > linux BSP for MPC8641D board. One of the thing new
> in this BSP is  
> > USB driver.
> >
> > At Ozlabs I found various patches for MPC8641D
> board,Most of then  
> > are regarding the PCI Express fixes, Some patches
> of ULI1575 chip,  
> > but my main concern is USB.
> >
> > Can amyone help me out to find , what are the
> changes that freescale  
> > does for the USB drivers. I tried to search a lot
> for USB patch, but  
> > my bad luck , i don't find anything.
> >
> > It would be a great help if anyone help me out to
> find what are the  
> > changes that freescale does for USB driver.
> 
> There shouldn't be any, but if you have a BSP from
> Freescale you  
> should have patches to that kernel as well.
> 
> We should be using the stock USB driver for the ULI
> chipset.  (I  
> forget if its ehci/ohci/uchi).
> 
> - k
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
> 



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Re: USB on MPC8641D

[Kumar Gala]

On Apr 17, 2008, at 3:36 AM, John Marc wrote:
> Hi
> I Have the kernel patches , but no one for the USB.
> The changes for the USB are integrated in the Kernel.
> I am currently looking into the linux BSP for usb
> changes , but unfortunately don't find any major
> chages.
>
> MPC8641 board have one EHCI controller and 3 OHCI
> conroller.
>
> As I am also new to USB , it would be great help, if
> someone give me any idea about the changes in new
> MPC8641 BSP ?
>
> Does freescale fix the PCI Express issue , that makes
> USB works.
>
> I have lots of hope with this forum :-)
>
>
> With Regards
> John

This forum is about the open source kernel and not BSPs kernels from  
Freescale or any other provider.

Have you tried a 2.6.24 or 2.6.25 open source kernel for the 8641 and  
see if it works w/regards to USB.  If not we can help try and figure  
out why not.

There have been a number of fixes made to PCIe support on 8641 that  
are in the 2.6.24 kernel, I'm guessing some of those might address  
whatever issue you're seeing with USB.

- k

Re: USB on MPC8641D

[John Marc]

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Okie Friend ,
  I will try the latest kernel 2.6.24, and let you know the results.
   
  With Regards
  John

Kumar Gala <galak@kernel.crashing.org> wrote:
  
On Apr 17, 2008, at 3:36 AM, John Marc wrote:
> Hi
> I Have the kernel patches , but no one for the USB.
> The changes for the USB are integrated in the Kernel.
> I am currently looking into the linux BSP for usb
> changes , but unfortunately don't find any major
> chages.
>
> MPC8641 board have one EHCI controller and 3 OHCI
> conroller.
>
> As I am also new to USB , it would be great help, if
> someone give me any idea about the changes in new
> MPC8641 BSP ?
>
> Does freescale fix the PCI Express issue , that makes
> USB works.
>
> I have lots of hope with this forum :-)
>
>
> With Regards
> John

This forum is about the open source kernel and not BSPs kernels from 
Freescale or any other provider.

Have you tried a 2.6.24 or 2.6.25 open source kernel for the 8641 and 
see if it works w/regards to USB. If not we can help try and figure 
out why not.

There have been a number of fixes made to PCIe support on 8641 that 
are in the 2.6.24 kernel, I'm guessing some of those might address 
whatever issue you're seeing with USB.

- k


       
---------------------------------
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Re: USB on MPC8641D

[John Marc]

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Re: USB on MPC8641D

[Kumar Gala]

On May 20, 2008, at 10:56 AM, John Marc wrote:

> Hi Mr Kumar
>
> Sorry for replying so late.
>
> I have tested the USB on the linux kernel 2.6.25 , but its not  
> working.
>
>
> Please suggest, Is this beacause of the PCI-Express Bug ??
>
>
> With Regards
>
> John
>

Can you describe again, what doesn't work means?

- k