how to get CPU id of imx8mm

[jingyangxie]

How can I get cpu id of imx8mm in bsp 5.4.70_2.3.2?

[joanxie]

do you mean function "get_cpu_rev" of soc.c?

"https://source.codeaurora.org/external/imx/uboot-imx/tree/arch/arm/mach-imx/imx8m/soc.c?h=imx_v2020...."

[jingyangxie]

Hi,Joanxie

    I mean to get cpu ids(or unique ids) in user-mode apps

[BiyongSUN · Accepted solution]

If you read the code, you will find below for uuid

cat /sys/devices/soc0/soc_uid

5.10
cat /sys/devices/soc0/serial_number

[joanxie]

you can use the command as below:

fuse read 0 1

fuse read 0 2

You can also get the same values reading the OCOTP_HW_OCOTP_TESTER0 and OCOTP_HW_OCOTP_TESTER1 registers.

Commands are:

md.l 0x30350410 1

md.l 0x30350420 1