Radxa zero - cpu serial number

#1

Hi Everyone,

Do you know how to get the Radxa zero cpu or any serial number?
I tried “cat /proc/cpuinfo” command but it did not return a serial number.

Thanks in advance!
Dennis

#2

It should be at /sys/bus/platform/devices/secure-monitor/serial

#3

Thanks @chewitt
Which component is the serial number of “/sys/bus/platform/devices/secure-monitor/serial” come from?
I found the following serial:
/sys/devices/platform/soc/ffe07000.mmc/mmc_host/mmc2/mmc2:0001/serial
Does anyone know where the serial number come from?
Thanks

#4

^ The secure-monitor reads it from efuse, this is the CPU serial.

^ And that is the serial uart Bluetooth device connected to the mmc(2) bus.

#5

Thanks @chewitt for the information.