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Nov 13, 2023
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DTB section updated #1487

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DTB section updated
jcarolinares Nov 9, 2023
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jcarolinares Nov 9, 2023
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16 changes: 1 addition & 15 deletions .../hardware/04.pro/carriers/portenta-hat-carrier/tutorials/user-manual/content.md
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Expand Up @@ -2621,21 +2621,7 @@ During the early boot stage, these overlays are merged together into a single DT

### Handling DTB Overlays

You can modify and maintain the Device Tree Blob (DTB) overlays through a couple of methods. In builds that do not prioritize security, you can edit the file located at the following location:

```
/boot/devicetree/overlays.txt
```

After making the desired changes, it is necessary to save the changes and reboot the system to apply them.

On the other hand, in builds that prioritize security, the _fw_setenv tool_ accessible in user space must be used to apply the corresponding changes to the U-boot settings as follows:

```
fw_setenv overlays=name_ov1 name_ov2
```

Currently, parameters are passed indirectly to the overlays; however, upcoming enhancements to U-boot will introduce direct parameter passing functionality.
To modify and maintain the Device Tree Blob (DTB) overlays of your Portenta X8 so it can support different hardware and devices, please read and execute the following steps.

### Custom DTB Overlays

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