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12 using CONFIG options in the board config file. This feature aims to
19 for three reasons. Firstly it is easy to use, being a simple text file.
24 compiler checks the text file and converts it to a compact binary
32 the features of each board in the device tree file, and have a single
35 To enable this feature, add CONFIG_OF_CONTROL to your board config file.
41 An fdt can be specified in source format as a text file. To read about
86 You will also find a useful fdtdump utility for decoding a binary file, as
87 well as fdtget/fdtput for reading and writing properties in a binary file.
90 Where do I get an fdt file for my board?
93 You may find that the Linux kernel has a suitable file. Look in the
111 file into
115 This should include your CPU or SOC's device tree file, placed in
123 a u-boot.dtb file alongside u-boot.bin. A common approach is then to
137 If CONFIG_OF_HOSTFILE is defined, then it will be read from a file on
139 specify the file to read.
143 To use a device tree file that you have compiled yourself, pass
148 Then U-Boot will copy that file to u-boot.dtb, put it in the .img file
162 To use this, put something like this in your board header file:
171 2) build the user specified dts file
172 $ make DEVICE_TREE=<dts-file-name>