[PATCH] ARM: OMAP3: Fix iva2_pwrdm settings for 3703

[Yegor Yefremov]

On Fri, May 17, 2013 at 8:56 PM, Mark A. Greer <mgreer at animalcreek.com> wrote:
> On Thu, May 16, 2013 at 12:19:20PM +0200, Yegor Yefremov wrote:
>> On 15.05.2013 23:50, Mark A. Greer wrote:
>> > On Wed, May 15, 2013 at 10:07:35AM -0700, Tony Lindgren wrote:
>
>> >> Mark, do you have some omap3 with no iva (other than am3703) to test the
>> >> idle states with?
>> >
>> > I have an am35xx which isn't supposed to have an IVA so I can test with it
>> > (although, I'm not sure how well the kernel works on the am35xx these days).
>> >
>> > I'm a bit busy today but I'll try booting the am35xx tomorrow and if it
>> > comes up, see what I can figure out.
>>
>> I think this issue is relevant to am3517 as you can see from this thread: http://thread.gmane.org/gmane.linux.ports.arm.omap/97903
>> I could boot only with your patch http://www.spinics.net/lists/arm-kernel/msg168865.html
>>
>> I have such a system running, so if you have any other patches/ideas to test, I would do it.
>
> Yegor, since I've so far been unable to get my am3517evm to fire up, can
> you play around with the 3517 to see if there appears to be iva registers
> that can be read/written to safely?  In particular, can the code that idles
> the iva be run safely on an am3517?

I'll look into this next week. am3517 and IVA seems to be a really big
mystery. In the TI forum will be stated, there is no IVA:
http://e2e.ti.com/support/arm/sitara_arm/f/791/t/150961.aspx, but TRM
has various appearances of IVA2 registers, but no real
description/explanation of what is IVA and how to eat it.

Yegor