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| author | Simon Glass <sjg@chromium.org> | 2017-05-18 20:08:53 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2017-06-01 07:03:06 -0600 |
| commit | 5e060d8bcca86dd4b88af607396a96cf6c557ca7 (patch) | |
| tree | 814096688d9923aa692d70c2211c599931ed6b39 /dts | |
| parent | fd7029029f5fd23990fb18c1049167fdcf95104d (diff) | |
| download | u-boot-5e060d8bcca86dd4b88af607396a96cf6c557ca7.tar.gz u-boot-5e060d8bcca86dd4b88af607396a96cf6c557ca7.tar.xz u-boot-5e060d8bcca86dd4b88af607396a96cf6c557ca7.zip | |
dm: core: Add livetree definitions
Add a Kconfig option to enable a live device tree, built at run time from
the flat tree. Also add structure definitions and a root node.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'dts')
| -rw-r--r-- | dts/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/dts/Kconfig b/dts/Kconfig index 9a0622154a..b3009af03f 100644 --- a/dts/Kconfig +++ b/dts/Kconfig @@ -32,6 +32,17 @@ config SPL_OF_CONTROL which is not enough to support device tree. Enable this option to allow such boards to be supported by U-Boot SPL. +config OF_LIVE + bool "Enable use of a live tree" + depends on OF_CONTROL + help + Normally U-Boot uses a flat device tree which saves space and + avoids the need to unpack the tree before use. However a flat + tree does not support modifcation from within U-Boot since it + can invalidate driver-model device tree offsets. This option + enables a live tree which is available after relocation, + and can be adjusted as needed. + choice prompt "Provider of DTB for DT control" depends on OF_CONTROL |