Hi,
I appear to have missed the first post.
Is there any update on the below request? Are there any functions similar to eth_get_ethaddr() to retrieve device-specific info? I am working with raspberry pi 0 and there is no network interface card. So, eth_get_ethaddr() returns null
So there's a bunch of drivers for OTP/eFuses in drivers/misc/* which provide access to those sort of unique options such as CPU serial numbers, and possibly stored MACs etc.
I know the RPi has a OTP/eFUSE HW IP block, I don't believe U-Boot has a driver for that as yet. The main RPi firmware may have an mbox/API for querying those sorts of things, looking at board/raspberrypi/rpi/rpi.c there's a set_usbethaddr which calls a msg_get_mac_address to request a MAC from the RPi firmware, I suspect that may work for your needs.
Peter
Thanks in advance
On Wed, Jun 19, 2024 at 9:11 AM Sourabh Hegde Ramu hrsourabh1107@gmail.com wrote:
Hello,
Currently, I am using the MAC address from eth_get_ethaddr() function to calculate a hash value. But, I would like to replace this with a more unique device info such as cpuid or other values. But I could not find any function that can retrieve cpu info.
Can anyone please point me in the correct direction? Do we have any functions for this? Are these things part of the documentation?
Thanks in advance.
Kind regards, Sourabh