Hi Sascha, thank you for your suggestion about the MAC, the code works now as expected. Just another quick question: is there a function like of_eth_register_ethaddr() also for a 'serial-number' value ? I also have a 'serial number' value from the eeprom and I would like to pass to the kernel. Just calling something like: of_set_property(of_get_root_node(), "serial-number", s, strlen(s) + 1, 1); does not work because it changes only the device tree for barebox but not that for the kernel. So I registered an of fixup: of_register_fixup(samx7_board_fixup, s); for it and it works then but it is a bit more complex. giorgio > On May 25, 2020 at 8:01 AM Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > > > Hi Giorgio, > > On Sun, May 24, 2020 at 01:57:08PM +0200, Giorgio wrote: > > Hi, > > > > I'm working with an arm som with an imx7d soc on it. > > The som also has an eeprom with some module specific manufacturer parameters > > like two MAC address, for eth0 and eth1, a module description string or a module > > serial number. > > I've now added some code to my board.c to extract the strings from the eeprom and now > > I need to actually configure the MAC addresses from them, to avoid barebox choose > > random ones when it needs the eth's. > > Use of_eth_register_ethaddr(). It will do two things for you. First it > will let the ethernet device come up with the right MAC address under > barebox. Also it will add the "mac-address" property to the device tree > passed to Linux. > > Sascha > > > -- > Pengutronix e.K. | | > Steuerwalder Str. 21 | http://www.pengutronix.de/ | > 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
