Debug UART on Espresso Bin

[Anonymous]

Hi

I have EspressoBin board. I can able to boot Mainline Linux over it and able to access it using primary UART via
micro USB cabe.

As per Linux as well as u-boot source , EspressoBin has two uart (one can be accessed via Micro USB).

I wanted to how second Uart can be accessed , is there any specific way to connect to it , for Instance via GPIO’s
or something like it ?

Thanks

[stappers]

I wonder where that second UART is. I even doubt if it exists.

I couldn’t find any sign of a second uart on Marvell Armada 3700LP (88F3720) hardware information.

As per Linux as well as u-boot source , EspressoBin has two uart

Please tell more about the software side of the second UART

[Anonymous]

Hi

I was talking about uart1 that can be accessed via pin 24 and pin 26 on P9 GPIO header:

http://wiki.espressobin.net/tiki-index.php?page=ESPRESSObin+GPIO+LED+blinking

In Linux , its been supported via this patch:

https://patchwork.ozlabs.org/patch/822320/

Thanks
Amit

[Author]

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