topic Re: configure usb phy transmitter control linux kernel in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/configure-usb-phy-transmitter-control-linux-kernel/m-p/787324#M121983 <HTML><HEAD></HEAD><BODY><P>Hi Harland</P><P></P><P>one can look at tx-d-cal optional property in</P><P>linux/Documentation/devicetree/bindings/usb/mxs-phy.txt</P><P><A class="link-titled" href="https://source.codeaurora.org/external/imx/linux-imx/tree/Documentation/devicetree/bindings/usb/mxs-phy.txt?h=imx_4.1.15_2.0.0_ga" title="https://source.codeaurora.org/external/imx/linux-imx/tree/Documentation/devicetree/bindings/usb/mxs-phy.txt?h=imx_4.1.15_2.0.0_ga">mxs-phy.txt\usb\bindings\devicetree\Documentation - linux-imx - i.MX Linux kernel</A>&nbsp;</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> Thu, 16 Aug 2018 23:06:36 GMT igorpadykov 2018-08-16T23:06:36Z configure usb phy transmitter control linux kernel https://community.nxp.com/t5/i-MX-Processors/configure-usb-phy-transmitter-control-linux-kernel/m-p/787323#M121982 <HTML><HEAD></HEAD><BODY><P>I am trying to figure out how to set the USB PHY Tx Control Reg via the device tree. If I have to do from userspace, I have to (ideas on this are appreciated also) but I think I should be able to define a register address (0x020CA010 for the i.MX6) and value to be loaded (0xC). </P><P></P><P>The POR default value for D_CAL may be insufficient to allow the on-chip PHY to drive a signal w/ all cables.</P><P></P><P>Any assistance is appreciated.</P></BODY></HTML> Tue, 14 Aug 2018 20:46:54 GMT https://community.nxp.com/t5/i-MX-Processors/configure-usb-phy-transmitter-control-linux-kernel/m-p/787323#M121982 hchristo 2018-08-14T20:46:54Z Re: configure usb phy transmitter control linux kernel https://community.nxp.com/t5/i-MX-Processors/configure-usb-phy-transmitter-control-linux-kernel/m-p/787324#M121983 <HTML><HEAD></HEAD><BODY><P>Hi Harland</P><P></P><P>one can look at tx-d-cal optional property in</P><P>linux/Documentation/devicetree/bindings/usb/mxs-phy.txt</P><P><A class="link-titled" href="https://source.codeaurora.org/external/imx/linux-imx/tree/Documentation/devicetree/bindings/usb/mxs-phy.txt?h=imx_4.1.15_2.0.0_ga" title="https://source.codeaurora.org/external/imx/linux-imx/tree/Documentation/devicetree/bindings/usb/mxs-phy.txt?h=imx_4.1.15_2.0.0_ga">mxs-phy.txt\usb\bindings\devicetree\Documentation - linux-imx - i.MX Linux kernel</A>&nbsp;</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> Thu, 16 Aug 2018 23:06:36 GMT https://community.nxp.com/t5/i-MX-Processors/configure-usb-phy-transmitter-control-linux-kernel/m-p/787324#M121983 igorpadykov 2018-08-16T23:06:36Z