The dev_no between uboot and kernel blk device.

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The dev_no between uboot and kernel blk device.

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wenmingfeng
Contributor III

Hello,

imx6 chip expertise,

I have an imx6dl customer board refer from imx6dlsabresd, the MMC i used is connect to 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, => printenv mmcdev
mmcdev=0
=> printenv mmcroot
mmcroot=/dev/mmcblk0p2 rootwait rw
If this is wrong, then what is the correctly mapping? 

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b45499
NXP TechSupport
NXP TechSupport

Hi,

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.
Have a great day,
Rita

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