Hello Matthias, On 13.05.22 14:08, Matthias Fend wrote: > Hello Sam, > > Am 13.05.2022 um 12:30 schrieb Sam Ravnborg: >> Hi Matthias >> >> On Fri, May 13, 2022 at 10:55:02AM +0200, Matthias Fend wrote: >>> Hi, >>> >>> I'm looking for a solution to support multiple boards with just one barebox >>> image. The few core components that are relevant for barebox are the same on >>> all boards, so that the same barebox image runs on all boards. It is >>> possible to dynamically detect the board type inside barebox, but as this >>> requires some infrastructure it is not possible during lowlevel init. >> >> The skov-imx6 boards was in a similar situation - here the solution was >> to add enough infrastructure to lowlevel to be able to determine the >> board variant. >> >> Not what you asked for but maybe duplicating the minimal set of >> infrastructure allows you to determine the board type anyway in lowlevel? > > Thank you for pointing out this interesting example. > Since in this case things like I2C devices are needed for board detection, I think putting them in lowlevel init is not a good idea. The i.MX8MN-EVK uses i2c to differentiate between two variants, look for power_init_board_pca9450 and power_init_board_bd71837. We don't pass different device trees there, but this can easily be retrofitted once it's useful (i.e. once we have PMIC drivers for one of these chips). Cheers, Ahmad > > Thanks > ~Matthias > >> >> Sam > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- 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
