Re: AM3505/3517 support

["Raphaël Assénat" <raph@8d.com>]

On 05/07/11 05:59 AM, Premi, Sanjeev wrote:
>> -----Original Message-----
>> From: linux-omap-owner@vger.kernel.org 
>> [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Raphaël Assénat
>> Sent: Tuesday, July 05, 2011 12:59 AM
>> To: linux-omap@vger.kernel.org
>> Subject: AM3505/3517 support
>>
>> Hello,
>>
>> We have a custom designed based on the AM3505 and we wish to 
>> run a modern kernel
>> on it. Unfortunately, it seems a lot of efforts have been 
>> made to support other 
>> OMAP chips and that some work is still required to support 
>> the AM3505/3517 
>> completely. (does not boot as-is)
>>
>> Is there anyone working on this right now? Not knowing, I 
>> have already started
>> working on it.
>>
>> The am3505 is apparently so similar to the 3430 that it was 
>> treated as such 
>> (omap_chip.oc was being set to CHIP_IS_OMAP3430ES3_1). There 
>> are however a
>> few differences that need to be addressed. I have therefore 
>> created a new
>> CHIP_IS and patched clocks, hwmod and power management related files
>> consequently. My system now boots until it complains that it 
>> is unable 
>> to mount its root filesystem.
>>
>> I will send my patches in a moment for comments and 
>> hopefully, after a 
>> few iterations, they will be acceptable. I know a lot of cleanup is 
>> happening right now and as a result my patches may not apply 
>> or conflict. 
>> Please let me know and I will be happy to rebase them as needed.
>>
>> Looking forward to your comments and help. 
>>
>> One of the next things I'll look at is how to properly 
>> support the ZCN package.
>> Right now, the CBB package is used (board-am3517evm.c for 
>> instance) but there
>> are differences that prevent some GPIOs from being configured 
>> properly. It would
>> be nice to know if someone is working on this before I start...
> 
> Raphael,
> 
> The AM35x support has been trailing on the linux-omap. Usually,
> due to delays in dependency resolution:
> 
> If you are not specifically looking for the latest kernel,
> revision you can get the sources from:
> http://arago-project.org/git/projects/?p=linux-omap3.git
> 
> Use the tag: v2.6.37_OMAPPSP_04.02.00.07
> 
> This tree is supported by TI. The patches contained here, are
> being reworked for upstream submission...
When possible, I prefer working on the latest version. But at least
I'll have a look to make sure I'm not duplicating anyone's work.

By the way, is there a specific mailing list for discussing
this git tree?

Best regards,
Raphaël Assénat
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html