ICH6R support 2.4.20

ICH6R support 2.4.20

[Siddharth Taneja]

Hi,

I am trying to port our software system (uses a 2.4.20 kernel) to a new 
platform which has a ICH6R controller. Due to some reasons we cannot 
update our kernel to a more recent one (probably 2.4.27) which has 
libata support in it. I can successfully patch the kernel (after some 
modifications) with the 2.4.26-libata patch and get the system up and 
running using the drivers/ide code. But I cannot seem to get the 
ata_piix (scsi layer) working (does not patch cleanly). Is there a patch 
available for 2.4.20 that can get the ICH6R support. Or is there a way 
to get the dma mode enabled with the drivers/ide code?

Thanks

Sid

Re: ICH6R support 2.4.20

[Jeff Garzik]

Siddharth Taneja wrote:
> Hi,
> 
> I am trying to port our software system (uses a 2.4.20 kernel) to a new 
> platform which has a ICH6R controller. Due to some reasons we cannot 
> update our kernel to a more recent one (probably 2.4.27) which has 
> libata support in it. I can successfully patch the kernel (after some 
> modifications) with the 2.4.26-libata patch and get the system up and 
> running using the drivers/ide code. But I cannot seem to get the 
> ata_piix (scsi layer) working (does not patch cleanly). Is there a patch 
> available for 2.4.20 that can get the ICH6R support. Or is there a way 
> to get the dma mode enabled with the drivers/ide code?

Turn off combined mode, and PATA DMA will start working.

	Jeff

Re: ICH6R support 2.4.20

[Siddharth Taneja]

Jeff Garzik wrote:

> Siddharth Taneja wrote:
>
>> Hi,
>>
>> I am trying to port our software system (uses a 2.4.20 kernel) to a 
>> new platform which has a ICH6R controller. Due to some reasons we 
>> cannot update our kernel to a more recent one (probably 2.4.27) which 
>> has libata support in it. I can successfully patch the kernel (after 
>> some modifications) with the 2.4.26-libata patch and get the system 
>> up and running using the drivers/ide code. But I cannot seem to get 
>> the ata_piix (scsi layer) working (does not patch cleanly). Is there 
>> a patch available for 2.4.20 that can get the ICH6R support. Or is 
>> there a way to get the dma mode enabled with the drivers/ide code?
>
>
> Turn off combined mode, and PATA DMA will start working.
>
>     Jeff
>
>
>
Hi Jeff,

Thanks for the reply.

I tried turning off the combined mode but in vain. I still cannot get 
DMA enabled. Let me just tell you a little bit where I am. I am using 
the native ide support to get the system up (by adding the necessary pci 
ids + modification from the libata patch to the piix.c). I cannot use 
the ata_piix implementation as I have not found a clean patch for a 
2.4.20 kernel. Any ideas?

Any suggestions are welcome.

Sid