* Status of 1GHz support on am37xx
@ 2013-11-22 23:01 Mark A. Greer
2013-11-25 23:35 ` Tony Lindgren
0 siblings, 1 reply; 7+ messages in thread
From: Mark A. Greer @ 2013-11-22 23:01 UTC (permalink / raw)
To: linux-omap, linux-arm-kernel; +Cc: Nishanth Menon
Hello.
I was wondering what that the status of 1GHz support for the am37xx is.
It looks like smartreflex/avs and ABB drivers are there. Do they need
more work (e.g., DT support)? What DT nodes and related support need
to be added?
What pieces are being worked on and which ones aren't?
Is there an ETA for the pieces being worked on?
Thanks,
Mark
--
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Status of 1GHz support on am37xx
2013-11-22 23:01 Status of 1GHz support on am37xx Mark A. Greer
@ 2013-11-25 23:35 ` Tony Lindgren
0 siblings, 0 replies; 7+ messages in thread
From: Tony Lindgren @ 2013-11-25 23:35 UTC (permalink / raw)
To: Mark A. Greer; +Cc: linux-omap, linux-arm-kernel, Nishanth Menon
* Mark A. Greer <mgreer@animalcreek.com> [131122 15:02]:
> Hello.
>
> I was wondering what that the status of 1GHz support for the am37xx is.
>
> It looks like smartreflex/avs and ABB drivers are there. Do they need
> more work (e.g., DT support)? What DT nodes and related support need
> to be added?
>
> What pieces are being worked on and which ones aren't?
> Is there an ETA for the pieces being worked on?
There are still various parts of twl4030 that are only working with
platform data, so at least those should be fixed now that we're moving
to DT only based booting for mach-omap2 for v3.14.
Regards,
Tony
^ permalink raw reply [flat|nested] 7+ messages in thread
* Status of 1GHz support on am37xx
@ 2013-11-25 23:35 ` Tony Lindgren
0 siblings, 0 replies; 7+ messages in thread
From: Tony Lindgren @ 2013-11-25 23:35 UTC (permalink / raw)
To: linux-arm-kernel
* Mark A. Greer <mgreer@animalcreek.com> [131122 15:02]:
> Hello.
>
> I was wondering what that the status of 1GHz support for the am37xx is.
>
> It looks like smartreflex/avs and ABB drivers are there. Do they need
> more work (e.g., DT support)? What DT nodes and related support need
> to be added?
>
> What pieces are being worked on and which ones aren't?
> Is there an ETA for the pieces being worked on?
There are still various parts of twl4030 that are only working with
platform data, so at least those should be fixed now that we're moving
to DT only based booting for mach-omap2 for v3.14.
Regards,
Tony
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Status of 1GHz support on am37xx
2013-11-25 23:35 ` Tony Lindgren
@ 2013-11-26 15:49 ` Nishanth Menon
-1 siblings, 0 replies; 7+ messages in thread
From: Nishanth Menon @ 2013-11-26 15:49 UTC (permalink / raw)
To: Tony Lindgren, Mark A. Greer; +Cc: linux-omap, linux-arm-kernel
On 11/25/2013 05:35 PM, Tony Lindgren wrote:
> * Mark A. Greer <mgreer@animalcreek.com> [131122 15:02]:
>> Hello.
>>
>> I was wondering what that the status of 1GHz support for the am37xx is.
>>
>> It looks like smartreflex/avs and ABB drivers are there. Do they need
>> more work (e.g., DT support)? What DT nodes and related support need
>> to be added?
>>
>> What pieces are being worked on and which ones aren't?
>> Is there an ETA for the pieces being worked on?
>
> There are still various parts of twl4030 that are only working with
> platform data, so at least those should be fixed now that we're moving
> to DT only based booting for mach-omap2 for v3.14.
>
For 3630/DM3730 1GHz support the following needs to be done:
a) clock nodes[1] without which cpufreq-cpu0 will never scale frequencies
The following includes conversion to device tree enabled support.
b) VC-vp regulator
c) ABB dt nodes
d) AVS class 1.5 support
e) voltage regulator notifier around clock node for mpu so that avs
and abb can be sequenced around voltage and frequency changes.
So, to answer your question, we are a little farther away beyond the
first step of DT only boot to being able to exercise 1GHz properly.
[1] http://marc.info/?l=linux-omap&m=138545331825036&w=2
--
Regards,
Nishanth Menon
^ permalink raw reply [flat|nested] 7+ messages in thread
* Status of 1GHz support on am37xx
@ 2013-11-26 15:49 ` Nishanth Menon
0 siblings, 0 replies; 7+ messages in thread
From: Nishanth Menon @ 2013-11-26 15:49 UTC (permalink / raw)
To: linux-arm-kernel
On 11/25/2013 05:35 PM, Tony Lindgren wrote:
> * Mark A. Greer <mgreer@animalcreek.com> [131122 15:02]:
>> Hello.
>>
>> I was wondering what that the status of 1GHz support for the am37xx is.
>>
>> It looks like smartreflex/avs and ABB drivers are there. Do they need
>> more work (e.g., DT support)? What DT nodes and related support need
>> to be added?
>>
>> What pieces are being worked on and which ones aren't?
>> Is there an ETA for the pieces being worked on?
>
> There are still various parts of twl4030 that are only working with
> platform data, so at least those should be fixed now that we're moving
> to DT only based booting for mach-omap2 for v3.14.
>
For 3630/DM3730 1GHz support the following needs to be done:
a) clock nodes[1] without which cpufreq-cpu0 will never scale frequencies
The following includes conversion to device tree enabled support.
b) VC-vp regulator
c) ABB dt nodes
d) AVS class 1.5 support
e) voltage regulator notifier around clock node for mpu so that avs
and abb can be sequenced around voltage and frequency changes.
So, to answer your question, we are a little farther away beyond the
first step of DT only boot to being able to exercise 1GHz properly.
[1] http://marc.info/?l=linux-omap&m=138545331825036&w=2
--
Regards,
Nishanth Menon
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Status of 1GHz support on am37xx
2013-11-26 15:49 ` Nishanth Menon
@ 2013-11-27 23:33 ` Mark A. Greer
-1 siblings, 0 replies; 7+ messages in thread
From: Mark A. Greer @ 2013-11-27 23:33 UTC (permalink / raw)
To: Nishanth Menon; +Cc: Tony Lindgren, linux-omap, linux-arm-kernel
On Tue, Nov 26, 2013 at 09:49:27AM -0600, Nishanth Menon wrote:
> On 11/25/2013 05:35 PM, Tony Lindgren wrote:
> > * Mark A. Greer <mgreer@animalcreek.com> [131122 15:02]:
> >> Hello.
> >>
> >> I was wondering what that the status of 1GHz support for the am37xx is.
> >>
> >> It looks like smartreflex/avs and ABB drivers are there. Do they need
> >> more work (e.g., DT support)? What DT nodes and related support need
> >> to be added?
> >>
> >> What pieces are being worked on and which ones aren't?
> >> Is there an ETA for the pieces being worked on?
> >
> > There are still various parts of twl4030 that are only working with
> > platform data, so at least those should be fixed now that we're moving
> > to DT only based booting for mach-omap2 for v3.14.
> >
>
> For 3630/DM3730 1GHz support the following needs to be done:
> a) clock nodes[1] without which cpufreq-cpu0 will never scale frequencies
> The following includes conversion to device tree enabled support.
> b) VC-vp regulator
> c) ABB dt nodes
> d) AVS class 1.5 support
> e) voltage regulator notifier around clock node for mpu so that avs
> and abb can be sequenced around voltage and frequency changes.
>
> So, to answer your question, we are a little farther away beyond the
> first step of DT only boot to being able to exercise 1GHz properly.
>
> [1] http://marc.info/?l=linux-omap&m=138545331825036&w=2
Thanks guys.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Status of 1GHz support on am37xx
@ 2013-11-27 23:33 ` Mark A. Greer
0 siblings, 0 replies; 7+ messages in thread
From: Mark A. Greer @ 2013-11-27 23:33 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Nov 26, 2013 at 09:49:27AM -0600, Nishanth Menon wrote:
> On 11/25/2013 05:35 PM, Tony Lindgren wrote:
> > * Mark A. Greer <mgreer@animalcreek.com> [131122 15:02]:
> >> Hello.
> >>
> >> I was wondering what that the status of 1GHz support for the am37xx is.
> >>
> >> It looks like smartreflex/avs and ABB drivers are there. Do they need
> >> more work (e.g., DT support)? What DT nodes and related support need
> >> to be added?
> >>
> >> What pieces are being worked on and which ones aren't?
> >> Is there an ETA for the pieces being worked on?
> >
> > There are still various parts of twl4030 that are only working with
> > platform data, so at least those should be fixed now that we're moving
> > to DT only based booting for mach-omap2 for v3.14.
> >
>
> For 3630/DM3730 1GHz support the following needs to be done:
> a) clock nodes[1] without which cpufreq-cpu0 will never scale frequencies
> The following includes conversion to device tree enabled support.
> b) VC-vp regulator
> c) ABB dt nodes
> d) AVS class 1.5 support
> e) voltage regulator notifier around clock node for mpu so that avs
> and abb can be sequenced around voltage and frequency changes.
>
> So, to answer your question, we are a little farther away beyond the
> first step of DT only boot to being able to exercise 1GHz properly.
>
> [1] http://marc.info/?l=linux-omap&m=138545331825036&w=2
Thanks guys.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-11-27 23:33 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-11-22 23:01 Status of 1GHz support on am37xx Mark A. Greer
2013-11-25 23:35 ` Tony Lindgren
2013-11-25 23:35 ` Tony Lindgren
2013-11-26 15:49 ` Nishanth Menon
2013-11-26 15:49 ` Nishanth Menon
2013-11-27 23:33 ` Mark A. Greer
2013-11-27 23:33 ` Mark A. Greer
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.