topic Re: system could not locate rootfs waiting for root device /dev/mmcblk0p7 is displayed in i.MX Processors

system could not locate rootfs waiting for root device /dev/mmcblk0p7 is displayed

shrawankumar — Tue, 23 Feb 2016 09:49:31 GMT

Hello Team,

Refer to " imx6qdl.dtsi " file where when I comment the below line, my system boots fine and loads the rootfs. However when I un- comment the below line it does not works and "waiting for root device /dev/mmcblk0p7 is displayed ..."

/* mmc0 = &usdhc1;

mmc1 = &usdhc2;

mmc2 = &usdhc3;

mmc3 = &usdhc4;*/

..............................................................................................................................................................................................................................................

Also, when I replace it as below , it works fine

my_mmc0 = &usdhc1; /* mmc0 = &usdhc1; */

my_mmc1 = &usdhc2; /*mmc1 = &usdhc2; */

my_mmc2 = &usdhc3; /* mmc2 = &usdhc3;*/

my_mmc3 = &usdhc4; /* mmc3 = &usdhc4;*/

Can some one help here root out the problem ? I am working on imx6qdl-sabresd based custom board and using "freescale_imx6_3-14"

Regards

Shrawan

Re: system could not locate rootfs waiting for root device /dev/mmcblk0p7 is displayed

igorpadykov — Wed, 24 Feb 2016 02:09:25 GMT

Hi Shravan

this may be caused by emmc numbering, for description please

refer to attached document sect.4.7.1 Running Linux from MMC/SD

Best regards

igor

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Re: system could not locate rootfs waiting for root device /dev/mmcblk0p7 is displayed

shrawankumar — Fri, 04 Mar 2016 08:08:04 GMT

Thanks Igor

Changing as below works for me:

mmc0 = &usdhc3;

Regards

Shrawan