The possible bus frequencies are integer divisors of 48 MHz, so only option
above 24 MHz is 48 MHz.
Spec on the W5500 chip says it will run up to 80 MHz.
So, I will recompile the ".dtbo' for 48 and report.
--- Graham

==

On Sat, Oct 7, 2017 at 6:02 PM, Robert Nelson <robertcnel...@gmail.com>
wrote:

>
>
> On Oct 7, 2017 5:30 PM, "Graham" <gh78...@gmail.com> wrote:
>
> Steven:
>
> Thanks for pointing out speedtest-cli.
>
> I followed your tutorial and got my ETH-WIZ 10/100 Mbps Click running,
> since Robert released the overlay for that yesterday.
>
> The one addition to your tutorial is that it also required upgrading the
> kernel to 4.9 as part of the install, per Robert's instructions for the
> ETH-WIZ.
>
> As you say, it boots, and just works.
>
> Running speedtest-cli ...
> I get 3.3 Mbps down, and 4.6 Mbps up.
>
> Confirmed that the chip had negotiated a 100 Mbps connection, so not the
> connection.
>
> I note that, in reading the source for the '.dtbo', that the SPI clock is
> set to 12 MHZ.
> Recompiled the '.dtbo' with SPI clock at 24 MHz.
>
>
> How fast can you push the spi bus? I've just used the 12 mhz, as it was
> the default for one of the device tree in the docs..
>
> Regards,
>
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