topic The dev_no between uboot and kernel blk device. in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/The-dev-no-between-uboot-and-kernel-blk-device/m-p/608871#M91821 <HTML><HEAD></HEAD><BODY><P style="padding: 0px;">Hello,</P><P style="padding: 0px;"></P><P style="padding: 0px;">imx6 chip expertise,</P><P style="padding: 0px;">I have an imx6dl customer board refer from imx6dlsabresd, the MMC i used is connect to&nbsp;MX6_PAD_SD1, and in uboot I set the dev_no=0 so it can find the mmc 0, what is the correct parameter transfer to kernel,&nbsp;=&gt; printenv mmcdev<BR />mmcdev=0<BR />=&gt; printenv mmcroot<BR />mmcroot=/dev/mmcblk0p2 rootwait rw<BR />If this is wrong, then what is the correctly mapping?&nbsp;</P></BODY></HTML> Tue, 07 Feb 2017 01:27:20 GMT wenmingfeng 2017-02-07T01:27:20Z The dev_no between uboot and kernel blk device. https://community.nxp.com/t5/i-MX-Processors/The-dev-no-between-uboot-and-kernel-blk-device/m-p/608871#M91821 <HTML><HEAD></HEAD><BODY><P style="padding: 0px;">Hello,</P><P style="padding: 0px;"></P><P style="padding: 0px;">imx6 chip expertise,</P><P style="padding: 0px;">I have an imx6dl customer board refer from imx6dlsabresd, the MMC i used is connect to&nbsp;MX6_PAD_SD1, and in uboot I set the dev_no=0 so it can find the mmc 0, what is the correct parameter transfer to kernel,&nbsp;=&gt; printenv mmcdev<BR />mmcdev=0<BR />=&gt; printenv mmcroot<BR />mmcroot=/dev/mmcblk0p2 rootwait rw<BR />If this is wrong, then what is the correctly mapping?&nbsp;</P></BODY></HTML> Tue, 07 Feb 2017 01:27:20 GMT https://community.nxp.com/t5/i-MX-Processors/The-dev-no-between-uboot-and-kernel-blk-device/m-p/608871#M91821 wenmingfeng 2017-02-07T01:27:20Z Re: The dev_no between uboot and kernel blk device. https://community.nxp.com/t5/i-MX-Processors/The-dev-no-between-uboot-and-kernel-blk-device/m-p/608872#M91822 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>About the parameter settting in u-boot you can refer to the documents i.MX_Linux_Release_Notes.pdf and i.MX_Linux_User's_Guide.pdf. section 4 Kernel Boot Parameters and 4.7.1 Running Linux OS from MMC/SD.<BR />Have a great day,<BR /> Rita</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 17 Apr 2017 08:48:12 GMT https://community.nxp.com/t5/i-MX-Processors/The-dev-no-between-uboot-and-kernel-blk-device/m-p/608872#M91822 Rita_Wang 2017-04-17T08:48:12Z