Cpufreq for s3c2440 FriendlyArm
Hi all, Did anyone try the cpufreq on the mini2440 ? and did anyone get it working on the board ? Each time I do the configuration in the kernel I found nothing on the board ,however after the compilation I found the cpufreq.o & pll.o but no file concerning that on the board . Any help will be appreciated. Best Regards, -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
CpuFreq doesn't change the beagleboard voltage
Hi all, I'm using the rowboat project(Android over beagleboard),and I have enabled the CPUFREQ kernel driver,and I can switch between the different frequencies,however when I measure the current consumed ,I found that in some certain OP,the current remains constant without any change in it's value,however all the other frequencies just minor change in the current consumed So any Idea,,Am I missing anything to enable ? Appreciate your help .. -- tarek -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: SR2: VDD autocomp is not active
Thank you very much :-) . Appreciate it really . Regards, On Wed, Dec 30, 2009 at 8:36 AM, Romit Dasgupta wrote: > tarek attia wrote: >> Thank you :) , >> >> I found the "omap2_clk_init_cpufreq_table" function in the kernel >> image installed on my board ,and the hanging up is not permanent >> ,sometimes occurs and some time doesn't . >> >> So what the reason may be for this case? ..also what is the usage of >> "sr_vdd1_autocomp" ?? >> >> I know that I'm bothering you,,but thanks for your reply in advance :-) >> > Nothing to be bothered. Always glad to reply. sr_vdd1_autocomp enables Smart > reflex voltage autocompensation for VDD1 voltage rail. > You do seem to have the low level cpufreq driver in place. May be you can try > with pm branch. > -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: SR2: VDD autocomp is not active
Thank you :) , I found the "omap2_clk_init_cpufreq_table" function in the kernel image installed on my board ,and the hanging up is not permanent ,sometimes occurs and some time doesn't . So what the reason may be for this case? ..also what is the usage of "sr_vdd1_autocomp" ?? I know that I'm bothering you,,but thanks for your reply in advance :-) Regards, On Tue, Dec 29, 2009 at 4:00 PM, Romit Dasgupta wrote: > tarek attia wrote: >> Basically I'm working on beagleboard rev B5 . >> I'm not using the pm branch of kevin ,,however I'm using source files >> from the rowboat project (Android) ,just I enabled the cpufreq and >> smartreflex in the kernel configuration while I'm building the linux >> kernel of Android . >> > > Do you have this function in your code? > 'omap2_clk_init_cpufreq_table' If not please use pm branch. > -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: SR2: VDD autocomp is not active
Basically I'm working on beagleboard rev B5 . I'm not using the pm branch of kevin ,,however I'm using source files from the rowboat project (Android) ,just I enabled the cpufreq and smartreflex in the kernel configuration while I'm building the linux kernel of Android . Any Idea :-) ?? On Tue, Dec 29, 2009 at 2:30 PM, Romit Dasgupta wrote: > > >>> Each time I enable the ondemand governor ,it works fine for a while > >>> ,but each time the frequency is changed this messages appears :- > >>> > >>> SR1: VDD autocomp is not active > >>> > >>> then it works again ,but after small amount of time this messages > >>> appears followed by hang up for the overall system > >>> > >>> SR2: VDD autocomp is not active > >>> > >>> > >> try this: > >> echo 1 > /sys/power/sr_vdd1_autocomp; echo 1 > /sys/power/sr_vdd2_autocomp > What platform are you using? Also what is your git HEAD? > I can smell 3630... ;-) please confirm. -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: SR2: VDD autocomp is not active
Thank you for your reply , But another thing appears and also the system hangs up after activation the ondemand governor OPP4 doesn't support SmartReflex SR1: VDD autocomp not activated P.S:- I did as you told me by echo 1>sys/power/,,,etc Regards, On Mon, Dec 28, 2009 at 9:48 AM, Romit Dasgupta wrote: > > tarek attia wrote: > > Hi all, > > > > Each time I enable the ondemand governor ,it works fine for a while > > ,but each time the frequency is changed this messages appears :- > > > > SR1: VDD autocomp is not active > > > > then it works again ,but after small amount of time this messages > > appears followed by hang up for the overall system > > > > SR2: VDD autocomp is not active > > > > > > try this: > echo 1 > /sys/power/sr_vdd1_autocomp; echo 1 > /sys/power/sr_vdd2_autocomp > -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
SR2: VDD autocomp is not active
Hi all, Each time I enable the ondemand governor ,it works fine for a while ,but each time the frequency is changed this messages appears :- SR1: VDD autocomp is not active then it works again ,but after small amount of time this messages appears followed by hang up for the overall system SR2: VDD autocomp is not active Any one has an idea ?? Regards, -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
CPUfreq deosn't change the current frequency
Hi all, CPUfreq doesn't work,,I downloaded the PM Linux kernel ,and enabled the CPUFREQ driver before compilation . However every writting in the scaling_setspeed doesn't get any return,,doesn't change the frequency however without errors . Any Idea?? -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
scaling_setspeed doesn't change the frequency on beagleboard
Hi all, I'm using the beagleboard ,and android linux kernel obtained from the rowboat project . The cpufreq files are located and everything works fine except that it doesn't change the frequency it works on,I echo'ed the scaling_governor to use the userspace . However it still doesn't change the frequency I'm typing also I'm sure that my frequency is in the valid range . What may blocks this changes ? Any Idea will be appreciated :) -- tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Peripheral Power Management
I'm not talking about full chip off in suspend ,,but I'm talking about tern off some modules while they aren't in use however the cpu is running in normal mode not in idle On Wed, Dec 2, 2009 at 11:29 AM, tarek attia wrote: > Hi All, > > I know that CPU have power management through CPUFREQ,,but what about > the peripherals like (DVI-D) does it have a power management for it > as well??,,and the rest of peripherals also ? > > > > Appreciate your response, > > Best Regards, > tarek > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Peripheral Power Management
Hi All, I know that CPU have power management through CPUFREQ,,but what about the peripherals like (DVI-D) does it have a power management for it as well??,,and the rest of peripherals also ? Appreciate your response, Best Regards, tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: ACPI notifier chain?
Hi Ameya, I believe ACPI is a standard that doesn't matter it's X86 or ARM ,and it's responsible for power states (S,C,D and P states) ,,and Linux kernel implemented this standard . Am I right ?? BTW :- if it's not like so,,How can I monitor the power changes on the peripherals like LCD connected to my beagleboard ?? How can I make the power management for the peripherals ?? On Tue, Dec 1, 2009 at 11:58 AM, Ameya Palande wrote: > Hi Tarek, > > On Tue, 2009-12-01 at 09:53 +0100, ext tarek attia wrote: >> Hi all, >> >> Can I use the ACPI notifier chain to get noticed when any change for >> any peripheral has been occurred ? >> >> Like the Video dimming ,can I make a Linux driver module to get >> informed once any change has been occurred to it?? >> >> >> >> Regards, >> >> tarek > > I believe ACPI is x86 architecture specific thing. I don't think it has > anything to do with ARM / OMAP. > > Cheers, > Ameya. > > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
ACPI notifier chain?
Hi all, Can I use the ACPI notifier chain to get noticed when any change for any peripheral has been occurred ? Like the Video dimming ,can I make a Linux driver module to get informed once any change has been occurred to it?? Regards, tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Error in Compiling the kernel
Hi all, I encountered this error while i was compiling the kernel got from GIT concerning the power management branch Makefile:58: *** invalid syntax in conditional. Stop. This error arose after make distclean Any help will be appreciated Thanks in Advance tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Scalling_setspeed doesn't work
When I try to change the value of (scalling_setspeed) file ,it doesn't change however it doesn't rise errors as well,,but after changing it and trying to rereading it ,I found that nothing is changed !!!? BTW:-I'm using Linux kernel(2.6.29) on the beagleboard with the power management branch Any help will be appreciated . Best Regards, tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
insmod on beagleboard
How can I compile modules and insert it to the kernel on the beagleboard?? After I wrote the C files and tried to compile , it failed and don't know hot to deal with this ?? Any help will be appreciated Thanks in advance. Best Regards, tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
CPU driver
I have downloaded uImage on the beagleboard with the pm branch,and enabled all the CPU power management ,and after booting I found all the files concerning it in the CPUFREQ folder in CPU0,,however i couldn't type cpufreq commands . like cpufreq-info ,cpu-set ,,etc Any suggestions will be appreciated ,, thnx in advance . Best Regrds, tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
CPUFREQ for beagle
I want the CPUFREQdriver for the beagleboard which can work with linux2.6.29 properly plz any one Help thnx in Advance tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Linux-2.;6.29 needed
Hey all,, I want any link for Linux-2.6.29 with power management patches for Beagleboard urgently.. Any help will be appreciated . thx in advance. Best Regards, tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Linux_KERNEL UPDATE
How to update linux kernel from (2.6.29 ) to the newer one( 2.6.32) with the filesystem Image is Angstrom ,,booting from the SD-Card.. plz hel -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
power_management in beagleboard
Hey all, I've downloaded the patched linux kernel for the beagleboard,,and built it successfully,and after installing it on the board,,I found error tell me that there's a fatal error ,,and files not found for the Linux kernel 2.29 ,,however the linux kernel I downloaded 2.3,, P.S:- I'm using an Angstrom image which i built online Any help will be apperciated tarek -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
