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72 lines
1.4 KiB
72 lines
1.4 KiB
.TH DTMERGE 1 |
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.SH NAME |
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dtmerge \- merge an overlay or parameters into a base device-tree |
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.SH SYNOPSIS |
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.SY dtmerge |
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.OP \-d |
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.I base-dtb |
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.I merged-dtb |
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.I overlay-dtb |
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.RI [ param=val \|.\|.\|.] |
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.YS |
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.SY dtmerge |
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.B \-h |
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.YS |
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.SH DESCRIPTION |
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.B dtmerge |
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is a command line utility for merging overlays and/or device-tree parameters |
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with a base device-tree. |
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See |
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.B [DTREE] |
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for more information. |
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.PP |
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The base device-tree (in dtb format) is always specified as the first |
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(non-option) argument. |
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The second argument is the output filename, which will also be in dtb format. |
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The third argument provides the name of the overlay to merge into the base |
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tree. |
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If this is "-" then no overlay is used and the utility will simply customize |
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the base tree with any parameters given. |
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.SH OPTIONS |
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.TP |
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.BR \-d |
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Show debug output during operation. |
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.TP |
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.BR \-h |
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Displays help on the application. |
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.SH EXAMPLES |
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.TP |
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.B dtmerge /boot/bcm2711-rpi-4-b.dtb out.dtb - spi=on i2c=on |
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Produce a device-tree for the Raspberry Pi 4 in "out.dtb" which has the SPI and |
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I2C interfaces activated. |
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.TP |
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.B dtmerge /boot/bcm2710-rpi-3-b-plus.dtb out.dtb /boot/overlays/gpio-shutdown.dtbo |
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Produce a device-tree for the Raspberry Pi 3+ in "out.dtb" which includes the |
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GPIO shutdown overlay (with all parameters set to their default). |
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.SH SEE ALSO |
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.BR dtoverlay (1), |
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.BR dtparam (1), |
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.B [DTREE] |
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.SH REFERENCES |
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.TP |
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.B [DTREE] |
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https://www.raspberrypi.org/documentation/configuration/device-tree.md
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