[PATCH] eth: asix88179: reset during probe

[Mattijs Korpershoek]

Hi Caleb,

Thank you for the patch.

On mar., juin 18, 2024 at 16:57, Caleb Connolly <caleb.connolly at linaro.org> wrote:

> In some cases (consistently in my case with an embedded board) the
> ethernet controller will time out on the first init but always succeed
> after reset.
>
> Let's reset the controller during probe so we always start with it in a
> known state, and don't have wait for the first asix_wait_link() to
> time out.
>
> Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>

Reviewed-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>

> ---
> I see this behaviour consistently across three Qualcomm platforms that use this
> controller.
> ---
>  drivers/usb/eth/asix88179.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/usb/eth/asix88179.c b/drivers/usb/eth/asix88179.c
> index 7bfd285b3aa4..a0aa5c25e428 100644
> --- a/drivers/usb/eth/asix88179.c
> +++ b/drivers/usb/eth/asix88179.c
> @@ -628,8 +628,14 @@ static int ax88179_eth_probe(struct udevice *dev)
>  
>  	usb_dev = priv->ueth.pusb_dev;
>  	priv->maxpacketsize = usb_dev->epmaxpacketout[AX_ENDPOINT_OUT];
>  
> +	ret = asix_basic_reset(&priv->ueth, priv);
> +	if (ret) {
> +		printf("Failed to reset ethernet device\n");
> +		return ret;
> +	}
> +
>  	/* Get the MAC address */
>  	ret = asix_read_mac(&priv->ueth, pdata->enetaddr);
>  	if (ret)
>  		return ret;
> -- 
> 2.45.0