> For the complete documentation index, see [llms.txt](https://dev.solid-run.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.solid-run.com/nxp/imx6/sbc-platform/imx6-other-articles/boot-from-usb-otg-imx6.md).

# Boot from USB OTG - i.MX6

## Revisions and Notes

| **Date**    | **Owner** | **Revision** | **Notes**       |
| ----------- | --------- | ------------ | --------------- |
| 23 Feb 2022 |           | 1.0          | Initial release |

## Introduction

The following documentation provides a quick guide to boot from USB OTG port.

## Step-by-step

1\. Clone a repository to install and build **imx\_usb\_loader** application by run the follwoing:

```
git clone https://github.com/boundarydevices/imx_usb_loader.git
cd imx_usb_loader
make  
```

* **imx\_usb\_loader :** This application implements the Serial Download Protocol that the i.MX6 Boot-ROM uses to communicate. It is available on [github account of boundarydevices](https://github.com/boundarydevices/imx_usb_loader).
* The final binary is called **imx\_usb** and can be executed in place.

2\. Install SPL & U-Boot binaries:

```
wget https://solid-run-images.sos-de-fra-1.exo.io/IMX6/U-Boot/v2018.01/spl-imx6-sdhc.bin
wget https://solid-run-images.sos-de-fra-1.exo.io/IMX6/U-Boot/v2018.01/u-boot-imx6-sdhc.img
```

* You can Install U-Boot & SPL binaries from [SolidRun Images](https://images.solid-run.com/IMX6/U-Boot/) site.

3\. Serial connection

Please see our pages [Cubox-i](/nxp/imx6/sbc-platform/cubox-i-quick-start-guide.md#booting-from-an-sd-card), [HummingBoard Edge](/nxp/imx6/sbc-platform/hummingboard-imx6-sbc-quick-start-guide/hummingboard-edge-quick-start-guide.md#booting-from-an-sd-card) under serial connection section.

4\. Connect your Male to Male USB-A cable to the OTG port on your device.

{% hint style="info" %}
**Identify the OTG port** To quote our developer Jon: “it is the top port next to the Ethernet jack” More formally it is the top port on the U5 header. This holds true of all our i.MX6 based boards.
{% endhint %}

* Make sure you can detect the USB = NXP Semiconductors in the usb devices list with the exact same vendor ID as shown in the following example:

![](/files/r5K1h7WCjlgUHKLEmEXq)

5\. Run the script imx\_usb exec with the SPL to load SPL:

```
sudo ./imx_usb spl-imx6-sdhc.bin
```

**On success, SPL should announce itself on the serial console:**

![](/files/uWEUOD9kKbNHppdKtPjV)

6\. Run the script imx\_usb exec with the U-Boot to load U-Boot :

```
sudo ./imx_usb u-boot-imx6-sdhc.img
```

**On success, U-Boot should announce itself on the serial console:**

![](/files/JMpfB6DpYRYdKcG9Awwp)

{% hint style="success" %}
**Success Indicator for Cubox-i**\
The Cubox-i has an LED that is off by default and turned on by u-boot. So if the LED turns red, U-Boot was loaded successfully.
{% endhint %}

At this point U-Boot has been loaded to RAM and is running.


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