Hi, On Fri, Jan 12, 2018 at 08:42:26AM +0100, Sascha Hauer wrote: > On Thu, Jan 11, 2018 at 03:40:49PM +0000, Dgien, David [US] (MS) wrote: > > Hello, > > > > When going through the archives it looks like a set of patches > > were submitted to support device tree overlays in barebox in > > http://lists.infradead.org/pipermail/barebox/2015-March/022674.html. > > But they weren't accepted because overlays weren't fully > > implemented in the DTC yet. > > > > It looks like overlay support was mainlined in the kernel in > > 4.11. ( kernel/git/torvalds/linux.git: > > be5165a51d2500ae1afa1236a8b09858831fdf7e ) > > I am still not sure which parts got merged and which are still pending. > There are still overlay patches floating around. The only thing that's missing in the kernel at the moment is a user-space interface to load overlays, but the rest has been there for quite some time. > > Would it be possible to take another look at pulling these patches > > into the barebox mainline? > > Generally yes. If you like, please rebase test and respin the patches. The libfdt gained support to apply overlays quite some time ago already, so this should be as easy as updating it to a recent enough version, and creating a wrapper around fdt_apply. This is what U-Boot is doing. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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