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IMX7 Dual - support for lower frequencies (392MHz, 533 MHz)

Question asked by Gopinath Srinivasan on May 17, 2018
Latest reply on Jun 11, 2018 by Gopinath Srinivasan



We are looking for the support to operate IMX7D processor to operate in lower frequencies in the range of 392MHz to 533MHz. This is to increase the operating temperature of our IMX7D powered device. I have added below changes to the imx7d.dts file and I able to operate at 648 MHz.


cpu0: cpu@0 {
               operating-points = <
               /* KHz uV */
                  996000 1075000
                  792000 975000
                  648000 975000
                  533000 975000
                  396000 975000


Even when we set 369MHz, it is supporting only 648MHz. Your suggestions are greatly appreciated. 



Gopinath S