Hi Juergen, > Juergen Borleis <juergen@xxxxxxxxxxxxxx> hat am 24. März 2015 um 21:45 > geschrieben: > > > Stefan Wahren wrote: > > [...] > > Maybe you should take into account not to reduce VDD below 1.55 V if the SDRAM > controller runs above 196 MHz. The i.MX28 datasheet[1] lists these > restrictions. VDD powers the SDRAM controller as well. From the datasheet the > table "Frequency versus Voltage for EMICLK" shows: > > EMICLK Fmax (MHz) > VDDD (V) DDR2 mDDR > -------------------------------- > 1.550 205.71 205.71 > 1.450 196.36 196.36 > 1.350 196.36 196.36 > > jbe > > [1] > i.MX28 Applications > Processors for Consumer > Products > Silicon Version 1.2 > > Document Number: IMX28CEC > Rev. 3, 07/2012 thanks for pointing out. I will take care of it. Stefan -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
