dtc1

Usage

Overview

Device Tree Compiler, dtc, takes as input a device-tree in a given format and outputs a device-tree in another format for booting kernels on embedded systems. Typically, the input format is "dts", a human readable source format, and creates a "dtb", or binary format as output.

Options

-h

Display help text.

-q

Quiet:

-q - Suppress warnings.
-qq - Suppress errors.
-qqq - Suppress all.

-I <input format>

Input formats are:

dts - device tree source text
dtb - device tree blob
fs - /proc/device-tree style directory

-o <output file>

Dump the result into a file, instead of stdout.

-O <output format>

Output formats are:

dts - device tree source text
dtb - device tree blob
asm - assembler source

-V <output version>

Blob version to produce. The default is 17 (only relevant for dtb and asm output).

-d <output dependency file>

-R <number>

Make space for <number> reserve map entries (only relevant for dtb and asm output).

-S <bytes>

Make the blob at least <bytes> long (extra space).

-p <bytes>

Add padding to the blob of <bytes> long (extra space)

-b <number>

Set the physical boot CPU.

-f

Force - try to produce output even if the input tree has errors.

-s

Sort nodes and properties before outputting (only useful for comparing trees)

-v

Print DTC version and exit.

-H <phandle format>

phandle formats are:

legacy - "linux,phandle" properties only
epapr - "phandle" properties only
both - Both "linux,phandle" and "phandle" properties