Hi,
We're starting a new AM437x design and are falling short on UARTs. We'd like to use a PRU HW UART and have it show up as a normal UART in Linux.
I've been reading and see we have a PRU soft-uart implementation that's been tested on AM335x but since it's not been tested on an AM437x, it seems a little risky. We have to sort this out because if we go with the soft UART implementation, it impacts our pin-muxing.
I'm also aware of the PRU firmware example that uses the HW UART, it's pretty good but doesn't have Linux driver support in terms of using it as a Linux UART device.
The following post suggests TI is in the process of creating a Linux driver and corresponding PRU firmware. What is the status of this?
We are also working on a Linux driver that controls the ICSS Hardware UART. However, that will not be included in the Linux Processor SDK until our October 2020 release at the earliest.
Thank You
