Groups > comp.arch.embedded > #32034

Re: Openwrt on custom hardware

From	David Brown <david.brown@hesbynett.no>
Newsgroups	comp.arch.embedded
Subject	Re: Openwrt on custom hardware
Date	2023-10-27 09:03 +0200
Organization	A noiseless patient Spider
Message-ID	<uhfnb6$2577r$1@dont-email.me> (permalink)
References	<uhaq1g$jucc$1@dont-email.me>

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On 25/10/2023 12:18, pozz wrote:
> Do you know of some open hardware that runs officialy openwrt?
> 
> I'll try to explain my needs. I have to develop a board that runs Linux 
> embedded for a VoIP application.
> I need two Ethernet ports, LAN with active POE (where to connect a VoIP 
> phone) and WAN (maybe with passive POE, where to connect a router).
> 
> So, the IP traffic could be routed to the external router connected to 
> WAN or, internally, to a 4G modem.
> 
> So Linux should have three network interfaces: lan, wan and mobile.
> 
> It's a platform that seem very similar to a standard 4G router for SOHO 
> application, but I need to customize software and hardware (I need to 
> control some GPIO and UARTs).
> 

These are usually directly accessible on any platform with solid OpenWRT 
support - regardless of how esoteric the components are.

> Regarding the software, I could start from openwrt. However I don't know 
> how to start with hardware. I saw some cheap platforms that run openwrt 
> with schematics, but they usually use esoteric components, such as 
> AllWinner or Broadcam CPUs.
> 
> The best would be to use a well supported Linux SOM that could simplify 
> to custom electronics.
> 
> Any suggestions?

For the cheapest SOM's, look for Raspberry Pi compute modules.  If you 
want something very solid with good long-term support, industrial 
reliability and continued production for a decade or more, folks like 
Toradex are a good option - but they cost significantly more.

An alternative might be to view the Linux board more flexibly, and have 
your base board connected by USB.  Put a USB hub chip on it along with a 
couple of USB-Ethernet adaptors (combined devices exist, I believe), a 
USB 4G modem, and an FTDI 4232H or other FTDI chip (for UARTs and 
GPIOs).  Then you can use any board running Linux - all the hardware you 
need is on your board, and it is all controlled the same way from the 
Linux system.  USB2 based Ethernet is easily an order of magnitude 
faster than you need for VOIP, and none of this needs drivers or OS 
support outside of the standard kernel for the last decade or more.

Thread

Openwrt on custom hardware pozz <pozzugno@gmail.com> - 2023-10-25 12:18 +0200
  Re: Openwrt on custom hardware dalai lamah <antonio12358@hotmail.com> - 2023-10-25 16:33 +0200
    Re: Openwrt on custom hardware chrisq <devzero@nospam.com> - 2023-10-26 10:38 +0000
      Re: Openwrt on custom hardware pozz <pozzugno@gmail.com> - 2023-10-30 09:37 +0100
    Re: Openwrt on custom hardware pozz <pozzugno@gmail.com> - 2023-10-30 09:36 +0100
      Re: Openwrt on custom hardware dalai lamah <antonio12358@hotmail.com> - 2023-10-30 12:09 +0100
      Re: Openwrt on custom hardware pippo2@disney.com (Jack) - 2023-11-06 16:36 +0100
        Re: Openwrt on custom hardware Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2023-11-07 19:44 +0200
          Re: Openwrt on custom hardware Don Y <blockedofcourse@foo.invalid> - 2023-11-07 12:29 -0700
  Re: Openwrt on custom hardware Theo <theom+news@chiark.greenend.org.uk> - 2023-10-26 13:53 +0100
  Re: Openwrt on custom hardware David Brown <david.brown@hesbynett.no> - 2023-10-27 09:03 +0200
  Re: Openwrt on custom hardware Michael Schwingen <news-1513678000@discworld.dascon.de> - 2023-10-27 18:54 +0000

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