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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2020-06-18 10:44:46 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-06-18 16:26:43 +0200 |
| commit | c4f3b2862790d370f5e0db26fd506d3ab47d2e9a (patch) | |
| tree | e3c6643c74cef2404c75c1ae727f87d7f993c9ee /Documentation/devicetree | |
| parent | 85df5403d69fd33e3b262690a61286aed1c22209 (diff) | |
| download | barebox-c4f3b2862790d370f5e0db26fd506d3ab47d2e9a.tar.gz barebox-c4f3b2862790d370f5e0db26fd506d3ab47d2e9a.tar.xz | |
Documentation: devicetree: hint at libfdt being available
Since 7e5a875fff7d ("Compile libfdt for barebox"), we now also have
libfdt for operating on flattened device trees out of the PBL.
Document this.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/index.rst | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/devicetree/index.rst b/Documentation/devicetree/index.rst index 908652642b..70ff9bc74a 100644 --- a/Documentation/devicetree/index.rst +++ b/Documentation/devicetree/index.rst @@ -3,9 +3,11 @@ Barebox devicetree handling and bindings The preferred way of adding board support to barebox is to have devices on non-enumerable buses probed from device tree. -barebox imports the Linux OpenFirmware ``of_*``-API functions for device tree -parsing, which makes porting the device tree specific bits from device drivers -very straight forward. +barebox provide both the Linux OpenFirmware ``of_*`` and the libfdt ``fdt_`` APIs +for device tree parsing. The former makes porting the device tree specific +bits from Linux device drivers very straight forward, while the latter can be +used for very early (PBL) handling of flattened device trees, should this be +necessary. Additionally, barebox has support for programmatically fixing up device trees it passes to the kernel, either directly via ``of_register_fixup`` or via device |