Change thje frequency of the processor.

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Last Post 20 Apr 2012 07:50 AM by richard.laborde@logicpd.com

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jduran@gem-med.com

New Member
Posts:79

19 Apr 2012 09:13 AM
Dear all, The module DM3730 Torpedo SOM runs al 600 Mhz by default. I'm interested to increase the speed till 1 GHz. I could change the speed using LOLO (v.2.5.0) till 800 MHz but it is not persistent and I'm not able to change it using 'cpufreq-set' command in linux (v3.0.0) because no driver to change the frequency is present. I've recompiled the kernel with the options 'CPU Frequency scaling' enabled. I would like to change the frequency of the processor to 1 GHz and make the change persistent. Thanks and Best Regards. Joaquim Duran

richard.laborde@logicpd.com

Basic Member
Posts:247

19 Apr 2012 09:29 AM
Please review the Articles posted in the TI section and see if the one there on Reading and Changing the clock frequency works for you.

jduran@gem-med.com

New Member
Posts:79

19 Apr 2012 11:04 AM
I've tacken a llok to the article that you've referenced (I told that I was able to change the clock of the processor to 800 MHz from 600 MHz at boot time). I would like to modify the boot script of LOLO. As I've read in the manual, I should update the /dev/config device, but the device is not preset. How can I modify the script? Bellow, I list the contents of the /dev folder: losh> ls /dev S : id0 0 S : pm0 0 S : i2c0 0 S : i2c1 0 S : null 0 S : uart0 0 S : sdmmc0d 0 S : sdmmc0c 0 S : sdmmc0b 0 S : sdmmc0a 0 S : sdmmc0 0 S : nand0d 0 S : nand0c 0 S : nand0b 0 S : nand0a 0 S : nand0 0 Thanks and Best Regards, Joaquim Duran

richard.laborde@logicpd.com

Basic Member
Posts:247

20 Apr 2012 07:50 AM
Look at the LoLo Users Guide. In V 2.5 we removed the config block and added some boot files.