From c4f3b2862790d370f5e0db26fd506d3ab47d2e9a Mon Sep 17 00:00:00 2001 From: Ahmad Fatoum Date: Thu, 18 Jun 2020 10:44:46 +0200 Subject: 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 Signed-off-by: Sascha Hauer --- Documentation/devicetree/index.rst | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'Documentation/devicetree') 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 -- cgit v1.2.3