How to use rpmb in imx8x

[shalanyang]

IMX8X  RPMB use ?

             hello, could anyone tell me how to use rpmb in imx8x? tks!

like this ?

mmc rpmb write-key <rpmb device> <key file>
mmc rpmb write-block <rpmb device> <address> <256 byte data file> <key file>
mmc rpmb read-block <rpmb device> <address> <blocks count> <output file> [key file]

???

[igorpadykov]

Hi Shalan

it can be used with mmc-utils :

hardware - How to access Replay Protected Memory Block (RPMB) in eMMC? - Information Security Stack ... 

Best regards
igor
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[shalanyang]

I know to use it,tks!

[Raana]

Hi Shalan Yang,

Can you please share the exact inputs to below mentioned mmc commands?
mmc rpmb write-key <rpmb device> <key file>
mmc rpmb write-block <rpmb device> <address> <256 byte data file> <key file>
mmc rpmb read-block <rpmb device> <address> <blocks count> <output file> [key file]

Because, I'm also trying to read/write the RPMB partition in i.Mx8.

Thank You.
Best Regards,
J.P.Raja