Hi, Thanks for the update.
I was testing the Raspberry Pi 5 with u-boot and noticed I get below error regarding MAC address bcm2835: Could not query MAC address Net: No ethernet found. Is this because of a missing implementation of Pi5 network hardware? Thanks again! On Thu, Aug 29, 2024 at 10:05 AM Peter Robinson <pbrobin...@gmail.com> wrote: > Hi Sourabh, > > > Thanks for the update. Looking at the board/raspberrypi/rpi/rpi.c I > think MAC address is only returned for models that have onboard ethernet. > but for models raspberry pi 0w / pi 02w it might not return any value. > > Am I correct? (maybe I overlooked it?) Is there any other approach for > this? > > TBH I have no idea, in a lot of cases the MACs are written to SoCs > long before they end up in a final product so they may well be there. > > I have not tried, I was merely pointing out to you possible solutions > for you to try. I don't have the original pi0 but I also gave you > other possible ways to solve you're problem :) > > > Thanks in advance > > > > On Wed, Aug 28, 2024 at 5:31 PM Peter Robinson <pbrobin...@gmail.com> > wrote: > >> > >> 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 < > hrsourabh1...@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 > >> > > >
