Re: [PATCH v2 5/7] net: stmmac: dwmac-s32cc: add basic NXP S32G/S32R glue driver

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On 8/18/2024 2:50 PM, Jan Petrous (OSS) wrote:
> NXP S32G2xx/S32G3xx and S32R45 are automotive grade SoCs
> that integrate one or two Synopsys DWMAC 5.10/5.20 IPs.
> 
> The basic driver supports only RGMII interface.
> 

You mention that it only supports RGMII.. so...

> +static int s32cc_gmac_write_phy_intf_select(struct s32cc_priv_data *gmac)
> +{
> +	u32 intf_sel;
> +
> +	switch (gmac->intf_mode) {
> +	case PHY_INTERFACE_MODE_SGMII:
> +		intf_sel = PHY_INTF_SEL_SGMII;
> +		break;
> +	case PHY_INTERFACE_MODE_RGMII:
> +	case PHY_INTERFACE_MODE_RGMII_ID:
> +	case PHY_INTERFACE_MODE_RGMII_TXID:
> +	case PHY_INTERFACE_MODE_RGMII_RXID:
> +		intf_sel = PHY_INTF_SEL_RGMII;
> +		break;
> +	case PHY_INTERFACE_MODE_RMII:
> +		intf_sel = PHY_INTF_SEL_RMII;
> +		break;
> +	case PHY_INTERFACE_MODE_MII:
> +		intf_sel = PHY_INTF_SEL_MII;
> +		break;
> +	default:
> +		dev_err(gmac->dev, "Unsupported PHY interface: %s\n",
> +			phy_modes(gmac->intf_mode));
> +		return -EINVAL;
> +	}
> +
> +	writel(intf_sel, gmac->ctrl_sts);
> +
> +	dev_dbg(gmac->dev, "PHY mode set to %s\n", phy_modes(gmac->intf_mode));
> +

Why does this code seem to support others?

Is that support just not yet fully baked?




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