Hello Christoph, On 11/3/19 4:45 PM, Christoph Fritz wrote: > Hi, > > I would like to use emmc-hardware-partition boot1 as a state backend, > this has the charm of keeping the big hw-partition clean while using SLC > for e.g. serial numbers. > Within barebox using an emmc-hardware-partition boot1 as a state backend > just works! > > But trying to hand over this backend to Linux fails right before > starting the kernel: > > WARNING: Failed to fixup node in of_state_fixup+0x1/0x288: No such device I ran into this before, but with the barebox environment. I 'solved' it by moving the environment out of the boot partition.. See d5285342d87 ("mci: skip of_partitions_register_fixup for boot partitions"). > I guess dt-utils also has no support for using /dev/mmcblk1boot0 as a > backend (by default Linux doesn't allow to write to boot0/1) ? Yes. > What would be the best way to add this feature? > > Any ideas? How about: - formalize the eMMC boot partitions binding with a compatible = "barebox,emmc-bootpart" and change barebox to fix it up into the kernel's device tree. - have barebox_state handle this properly. You can check out how RAUC (LGPL-2.1) does it. Cheers Ahmad > > -- Christoph > > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Steuerwalder Str. 21 | https://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