https://community.nxp.com/t5/i-MX-Processors/imx287-devices-base-address/m-p/427002#M64749 <HTML><HEAD></HEAD><BODY><P>Hello!</P><P>According with i.MX28 Application Processor Reference Manual, Rev. 2, 08/2013 GPIO2_20 register have address 0x80018150, which base adress I should use for map it to user-space?</P><P>Thank you and excuse my bad english.</P></BODY></HTML> Fri, 04 Sep 2015 09:45:34 GMT BrilliantovKiri 2015-09-04T09:45:34Z https://community.nxp.com/t5/i-MX-Processors/imx287-devices-base-address/m-p/427002#M64749 <HTML><HEAD></HEAD><BODY><P>Hello!</P><P>According with i.MX28 Application Processor Reference Manual, Rev. 2, 08/2013 GPIO2_20 register have address 0x80018150, which base adress I should use for map it to user-space?</P><P>Thank you and excuse my bad english.</P></BODY></HTML> Fri, 04 Sep 2015 09:45:34 GMT https://community.nxp.com/t5/i-MX-Processors/imx287-devices-base-address/m-p/427002#M64749 BrilliantovKiri 2015-09-04T09:45:34Z https://community.nxp.com/t5/i-MX-Processors/imx287-devices-base-address/m-p/427003#M64750 <HTML><HEAD></HEAD><BODY><P>Hi Kirill</P><P></P><P>in general this physical base address is used for mapping to user-space,</P><P>as described for ioremap function :</P><P><A href="https://lwn.net/images/pdf/LDD3/ch15.pdf" title="https://lwn.net/images/pdf/LDD3/ch15.pdf">https://lwn.net/images/pdf/LDD3/ch15.pdf</A></P><P></P><P>For gpio usually is used gpio api, refer to sect. sect.3.6.1.1 API for</P><P>GPIO attached Linux Manual.</P><P></P><P>Best regards</P><P>igor</P></BODY></HTML> Fri, 04 Sep 2015 12:04:03 GMT https://community.nxp.com/t5/i-MX-Processors/imx287-devices-base-address/m-p/427003#M64750 igorpadykov 2015-09-04T12:04:03Z