{{AppliesToNaonAppliesToNaonFamily}}

In this article we will see how to add enable an additional UART which can be used by in a standard Linux application.

As an example, we'll use UART2.

If Even if it's rarely needed, if the user would like to enable ''earlyprintk'' on this UART, the following patch should be applied too:

{{Board Specific Information|text=Please note that, in this code, UART0 is referred as UART1index 1. For this reason , for UART2 is called UART3. However, this is rarely neededwe use index 3.}}