Re: [PATCH 5/9] net: mdio: ipq4019: support MDIO clock frequency divider

[Andrew Lunn]

> +	/* MDIO default frequency is 6.25MHz */
> +	priv->clk_div = 0xf;

802.3 says MDC should be 2.5Mhz. Its O.K. to support faster clocks,
but it should be an optional DT property, clock-frequency as described
in the binding.

   Andrew