* [Bug 58541] New: [pandaboard] cpu frequency limitation
@ 2013-05-20 14:31 bugzilla-daemon
2013-05-20 14:33 ` [Bug 58541] " bugzilla-daemon
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2013-05-20 14:31 UTC (permalink / raw)
To: cpufreq
https://bugzilla.kernel.org/show_bug.cgi?id=58541
Summary: [pandaboard] cpu frequency limitation
Product: Power Management
Version: 2.5
Kernel Version: 3.9.3
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
AssignedTo: cpufreq@vger.kernel.org
ReportedBy: liquid.acid@gmx.net
Regression: No
Created an attachment (id=102051)
--> (https://bugzilla.kernel.org/attachment.cgi?id=102051)
dmesg output after boot
Hello,
the ARMv7 in the Pandaboard ES (OMAP4460) should support a maximum frequency of
around 1.2GHz.
However it looks like that it's currently limited to 920MHz.
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies:
350000 700000 920000
Even worse:
cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq
699977
Greets,
Tobias
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^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 58541] [pandaboard] cpu frequency limitation 2013-05-20 14:31 [Bug 58541] New: [pandaboard] cpu frequency limitation bugzilla-daemon @ 2013-05-20 14:33 ` bugzilla-daemon 2013-05-20 19:48 ` bugzilla-daemon ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-05-20 14:33 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=58541 --- Comment #1 from Tobias Jakobi <liquid.acid@gmx.net> 2013-05-20 14:33:08 --- Created an attachment (id=102061) --> (https://bugzilla.kernel.org/attachment.cgi?id=102061) kernel config -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 58541] [pandaboard] cpu frequency limitation 2013-05-20 14:31 [Bug 58541] New: [pandaboard] cpu frequency limitation bugzilla-daemon 2013-05-20 14:33 ` [Bug 58541] " bugzilla-daemon @ 2013-05-20 19:48 ` bugzilla-daemon 2013-05-20 19:49 ` bugzilla-daemon ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-05-20 19:48 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=58541 Nishanth Menon <nm@ti.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |nm@ti.com --- Comment #2 from Nishanth Menon <nm@ti.com> 2013-05-20 19:48:16 --- This is correct - *ONLY* 920MHz will be supported by default without AVS Class 1.5, Adaptive Body Bias(ABB) support enabled. ABB and AVS class 1.5 is mandatory for frequencies 1.2GHz and 1.5GHz to be enabled. For PandaBoard ES, we also have additional constraint. MPU voltage is supplied by TPS62391 PMIC chip which can only be controlled from I2C_SR. we DONOT have any form of support for pmic control over i2c_sr. Current status: a) ABB support - currently blocked due to lack of clock node support in OF. i) ABB driver support and DTS conversion: http://marc.info/?l=linux-omap&m=136751559523901&w=2 ii) Clock node support preventing this from being merged in: http://marc.info/?t=136804008400001&r=1&w=2 b) TPS62361 support and hence voltage control over i2c_sr -> to be posted in linux-omap mailing list this week - https://github.com/nmenon/linux-2.6-playground/commits/devel/vc-vp-regulator has the prelim patches undergoing TI internal review. In short - this was never a feature that k.org had support till date. For full conversion, see the overview steps I posted here: https://plus.google.com/u/0/112464029509057661457/posts/gvyZQcNieoq -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 58541] [pandaboard] cpu frequency limitation 2013-05-20 14:31 [Bug 58541] New: [pandaboard] cpu frequency limitation bugzilla-daemon 2013-05-20 14:33 ` [Bug 58541] " bugzilla-daemon 2013-05-20 19:48 ` bugzilla-daemon @ 2013-05-20 19:49 ` bugzilla-daemon 2013-05-20 20:58 ` bugzilla-daemon 2013-05-29 2:44 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-05-20 19:49 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=58541 --- Comment #3 from Nishanth Menon <nm@ti.com> 2013-05-20 19:49:58 --- I think this should be assigned to linux-omap instead of cpufreq btw. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 58541] [pandaboard] cpu frequency limitation 2013-05-20 14:31 [Bug 58541] New: [pandaboard] cpu frequency limitation bugzilla-daemon ` (2 preceding siblings ...) 2013-05-20 19:49 ` bugzilla-daemon @ 2013-05-20 20:58 ` bugzilla-daemon 2013-05-29 2:44 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-05-20 20:58 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=58541 --- Comment #4 from Tobias Jakobi <liquid.acid@gmx.net> 2013-05-20 20:58:16 --- Thanks for the update. It's good to know that you guys are working on it! -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 58541] [pandaboard] cpu frequency limitation 2013-05-20 14:31 [Bug 58541] New: [pandaboard] cpu frequency limitation bugzilla-daemon ` (3 preceding siblings ...) 2013-05-20 20:58 ` bugzilla-daemon @ 2013-05-29 2:44 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-05-29 2:44 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=58541 Lan Tianyu <tianyu.lan@intel.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tianyu.lan@intel.com Component|cpufreq |ARM AssignedTo|cpufreq@vger.kernel.org |linux-arm-kernel@lists.arm. | |linux.org.uk Product|Power Management |Platform Specific/Hardware -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-05-29 2:44 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-05-20 14:31 [Bug 58541] New: [pandaboard] cpu frequency limitation bugzilla-daemon 2013-05-20 14:33 ` [Bug 58541] " bugzilla-daemon 2013-05-20 19:48 ` bugzilla-daemon 2013-05-20 19:49 ` bugzilla-daemon 2013-05-20 20:58 ` bugzilla-daemon 2013-05-29 2:44 ` bugzilla-daemon
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