[U-Boot] [PATCH] DTS: Fix ETH PHY reset on HSC|DDC boards (imx53)

[Fabio Estevam]

Hi Lukasz,

On Mon, Apr 1, 2019 at 11:02 AM Lukasz Majewski <lukma at denx.de> wrote:
>
> After the commit: "eth: dm: fec: Add gpio phy reset binding"
> SHA1: efd0b791069af93e9d439a70d1fe2ae8994dbbfa
>
> The FEC ETH driver switched to PHY GPIO reset performed with data defined
> in DTS.
> For the HSC|DDC boards the GPIO reset signal is active low and hence the
> wrong DTS description must be changed (otherwise the reset for ETH is not
> properly setup).

We should probably use the same approach as in the kernel to avoid
regressions with old dtbs.

In the kernel the GPIO polarity passed in the 'phy-reset-gpios'
property is ignored and it is assumed to be active low, unless
'phy-reset-active-high' is passed.

Thanks