topic Does DFS work with the LS1021A? in Layerscape https://community.nxp.com/t5/Layerscape/Does-DFS-work-with-the-LS1021A/m-p/484157#M885 <HTML><HEAD></HEAD><BODY><P>We have a TWR-LS1021A-PB evaluation board and are trying to get DFS (Dynamic Frequency Scaling) to work, with the aim to reduce CPU Power Consumption and also Temperature. </P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>We are booting off SD Card. The following images from the NXP v1.9 SDK were used to configure the SD Card.</P><P>u-boot-sdcard-ifc-2015.01+fslgit-r0.bin</P><P>uImage--3.12-r0-ls1021atwr-20151203140008.bin</P><P>uImage--3.12-r0-ls1021a-twr-20151203140008.dtb</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>The SD Card was setup as per the instructions on the following page:</P><P><A _jive_internal="true" href="https://community.nxp.com/external-link.jspa?url=https%3A%2F%2Flinuxlink.timesys.com%2Fdocs%2Fgsg%2Fls1021atwr" rel="nofollow" target="_blank">https://linuxlink.timesys.com/docs/gsg/ls1021atwr</A></P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>I’ve attached a log of the LS1021A CPU boot up (Uboot and Kernel) and our attempts at querying and also changing the frequency. </P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>However each time we try to change the frequency, we get an error message, as shown in the attached file. </P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Has anyone managed to get DFS working on the TWR-LS1021A-PB board?&nbsp; Is there anything we should be doing differently in the configuration process? Any suggestions would be much appreciated. </P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-337080">CPU-DFS-Trial-Boot-Up-Log.txt.zip</A></STRONG></P></BODY></HTML> Wed, 03 Feb 2016 06:00:13 GMT nikhilrao 2016-02-03T06:00:13Z Does DFS work with the LS1021A? https://community.nxp.com/t5/Layerscape/Does-DFS-work-with-the-LS1021A/m-p/484157#M885 <HTML><HEAD></HEAD><BODY><P>We have a TWR-LS1021A-PB evaluation board and are trying to get DFS (Dynamic Frequency Scaling) to work, with the aim to reduce CPU Power Consumption and also Temperature. </P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>We are booting off SD Card. The following images from the NXP v1.9 SDK were used to configure the SD Card.</P><P>u-boot-sdcard-ifc-2015.01+fslgit-r0.bin</P><P>uImage--3.12-r0-ls1021atwr-20151203140008.bin</P><P>uImage--3.12-r0-ls1021a-twr-20151203140008.dtb</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>The SD Card was setup as per the instructions on the following page:</P><P><A _jive_internal="true" href="https://community.nxp.com/external-link.jspa?url=https%3A%2F%2Flinuxlink.timesys.com%2Fdocs%2Fgsg%2Fls1021atwr" rel="nofollow" target="_blank">https://linuxlink.timesys.com/docs/gsg/ls1021atwr</A></P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>I’ve attached a log of the LS1021A CPU boot up (Uboot and Kernel) and our attempts at querying and also changing the frequency. </P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>However each time we try to change the frequency, we get an error message, as shown in the attached file. </P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Has anyone managed to get DFS working on the TWR-LS1021A-PB board?&nbsp; Is there anything we should be doing differently in the configuration process? Any suggestions would be much appreciated. </P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-337080">CPU-DFS-Trial-Boot-Up-Log.txt.zip</A></STRONG></P></BODY></HTML> Wed, 03 Feb 2016 06:00:13 GMT https://community.nxp.com/t5/Layerscape/Does-DFS-work-with-the-LS1021A/m-p/484157#M885 nikhilrao 2016-02-03T06:00:13Z