topic i.MX6 Linux: Is there a method for detecting temperature grade of part? in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614472#M92899 <HTML><HEAD></HEAD><BODY><P>We've been working with a consumer grade i.MX6s.</P><P>We decided that the consumer grade part doesn't meet our temperature requirement so we're going to switch to the automotive grade part.</P><P></P><P>My question is, is there a method for detecting the temperature grade of the part through software?</P><P>I want to change my thermal trip points in my rc.local file if the software detects that it's running on an automotive grade part.</P><P></P><P>Thanks!</P><P>-Bob</P></BODY></HTML> Fri, 07 Oct 2016 16:14:07 GMT grim 2016-10-07T16:14:07Z i.MX6 Linux: Is there a method for detecting temperature grade of part? https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614472#M92899 <HTML><HEAD></HEAD><BODY><P>We've been working with a consumer grade i.MX6s.</P><P>We decided that the consumer grade part doesn't meet our temperature requirement so we're going to switch to the automotive grade part.</P><P></P><P>My question is, is there a method for detecting the temperature grade of the part through software?</P><P>I want to change my thermal trip points in my rc.local file if the software detects that it's running on an automotive grade part.</P><P></P><P>Thanks!</P><P>-Bob</P></BODY></HTML> Fri, 07 Oct 2016 16:14:07 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614472#M92899 grim 2016-10-07T16:14:07Z Re: i.MX6 Linux: Is there a method for detecting temperature grade of part? https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614473#M92900 <HTML><HEAD></HEAD><BODY><P>Hi Bob</P><P></P><P>please check description of fuse SPEED_GRADING</P><P>in Table 5-10. Fusemap Descriptions i.MX6D Reference Manual<BR /><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fcache.freescale.com%2Ffiles%2F32bit%2Fdoc%2Fref_manual%2FIMX6DQRM.pdf" rel="nofollow" target="_blank">http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf</A></P><P>Linux checks it and automatically sets correct operating points of cpufreq, thermal</P><P>drivers, one can look at attached Linux Manual starting from Chapter 23.</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 07 Oct 2016 23:45:10 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614473#M92900 igorpadykov 2016-10-07T23:45:10Z Re: i.MX6 Linux: Is there a method for detecting temperature grade of part? https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614474#M92901 <HTML><HEAD></HEAD><BODY><P>Thank you for your attention to this, Igor.</P><P>I just want to clarify, I am using an i.MX6S. I'm not seeing the same "SPEED_GRADING" fusemap described in any of the tables in the IMX6SDLRM document.</P><P></P><P>I found this discussion</P><P><A href="https://community.nxp.com/thread/331248">https://community.nxp.com/thread/331248</A>&nbsp;</P><P>But it wasn't clear to me if it's accurate to say that the SPEED_GRADING can be detected in an i.MX6S or not and if the documentation you provided pertains to the i.MX6S.</P><P></P><P>Thank you again.</P><P>-Bob</P></BODY></HTML> Mon, 10 Oct 2016 18:08:50 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614474#M92901 grim 2016-10-10T18:08:50Z Re: i.MX6 Linux: Is there a method for detecting temperature grade of part? https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614475#M92902 <HTML><HEAD></HEAD><BODY><P>Hi Bob</P><P></P><P>fuse location and bit registers are the same for S/DL as for the D/Q devices,</P><P>0x440[17:16] fuse SPEED_GRADING<BR />part speed grading:<BR />00 – 800 MHz<BR />01 -&nbsp; Reserved<BR />10&nbsp; - 1.0 GHz<BR />11 - Reserved</P><P></P><P>Best regards<BR />igor</P></BODY></HTML> Tue, 11 Oct 2016 00:53:29 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614475#M92902 igorpadykov 2016-10-11T00:53:29Z Re: i.MX6 Linux: Is there a method for detecting temperature grade of part? https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614476#M92903 <HTML><HEAD></HEAD><BODY><P>Thanks Igor.</P></BODY></HTML> Tue, 11 Oct 2016 11:46:27 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX6-Linux-Is-there-a-method-for-detecting-temperature-grade-of/m-p/614476#M92903 grim 2016-10-11T11:46:27Z