Commit Graph

12 Commits

Author SHA1 Message Date
Ivan Petkov
bfd1c45e54
nixos/hardware/device-tree: fix application of overlays
Previously whenever an overlay was found to be incompatible with a base
device tree blob, the entire base dtb would be skipped in favor of
processing the next one. This had the unfortunate effect where overlays
would not fully be applied if any incompatibility was found. For
example, this is an issue with build device trees specific for one
flavor of raspberry pi if the overlay was not compatible _everywhere_.

The solution is to forego the `continue` keyword if an overlay is in
compatible and instead use a compound conditional statement to skip
incompatible overlays but continue trying to apply it to any remaining
dtbs.
2022-12-10 20:13:08 -08:00
rnhmjoj
916ca8f2b0
nixos/hardware/device-tree: make overlays more reliable
This make the process of applying overlays more reliable by:

1. Ignoring dtb files that are not really device trees. [^1]

2. Adding a `filter` option (per-overlay, there already is a global one)
   to limit the files to which the overlay applies. This is useful
   in cases where the `compatible` string is ambiguous and multiple
   unrelated files match.

Previously the script would fail in both cases.

[^1]: For example, there is dtbs/overlays/overlay_map.dtb in the
      Raspberry Pi 1 kernel.
2022-08-20 13:34:14 +02:00
Ben Siraphob
259fa13d53 treewide: remove nativeBuildInputs that are in stdenv 2022-04-16 21:46:46 +03:00
Felix Buehler
027d353491 treewide: rename name to pname&version 2022-01-22 18:13:29 +01:00
Ben Siraphob
16d91ee628 pkgs/os-specific: stdenv.lib -> lib 2021-01-17 23:26:08 +07:00
Janne Heß
9a966e84b6
raspberrypifw: 1.20200601 -> 1.20200902
Also disable the fixup phase since it only throws errors and remove the
platforms since these are only static files.
2020-10-07 00:41:15 +02:00
Richard Marko
6c9df40a4b nixos/device-tree: improve overlays support
Now allows applying external overlays either in form of
.dts file, literal dts context added to store or precompiled .dtbo.

If overlays are defined, kernel device-trees are compiled with '-@'
so the .dtb files contain symbols which we can reference in our
overlays.

Since `fdtoverlay` doesn't respect `/ compatible` by itself
we query compatible strings of both `dtb` and `dtbo(verlay)`
and apply only if latter is substring of the former.

Also adds support for filtering .dtb files (as there are now nearly 1k
dtbs).

Co-authored-by: georgewhewell <georgerw@gmail.com>
Co-authored-by: Kai Wohlfahrt <kai.wohlfahrt@gmail.com>
2020-09-09 16:34:58 +02:00
Markus Kowalewski
68ec5811d1
device-tree_rpi: update meta data 2020-06-30 20:58:30 +02:00
Michael Bishop
70308c5c56
device-tree_rpi: fix platforms 2020-04-08 12:54:58 -03:00
Thomas Kerber
cc5baf2d86
Various: Add support for raspberry pi 4. 2019-09-17 04:05:16 +01:00
Kai Wohlfahrt
766e0958b3 device-tree_rpi: fixup dtb names
This is just as messy as it is for the kernel files. Maybe it should be
done in the uboot boot-loader?
2019-08-07 13:51:22 +01:00
Kai Wohlfahrt
28cf80acf8 nixos/hardware.deviceTree: Move things around
In response to comments, create a sub-folder for deviceTree packages
(starting with rpi), and a top-level package for helpers.
2019-08-07 13:51:22 +01:00