linux-kernel - Re: [PATCH 1/3] net: stmmac: add imx93 platform support

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Date:   Wed, 12 Oct 2022 23:29:28 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Clark Wang <xiaoning.wang@....com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, festevam@...il.com, peppe.cavallaro@...com,
        alexandre.torgue@...s.st.com, joabreu@...opsys.com,
        mcoquelin.stm32@...il.com, kernel@...gutronix.de,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH 1/3] net: stmmac: add imx93 platform support

> +static int imx93_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
> +{
> +	struct imx_priv_data *dwmac = plat_dat->bsp_priv;
> +	int val;
> +
> +	switch (plat_dat->interface) {
> +	case PHY_INTERFACE_MODE_MII:
> +		val = MX93_GPR_ENET_QOS_INTF_SEL_MII;
> +		break;
> +	case PHY_INTERFACE_MODE_RMII:
> +		val = MX93_GPR_ENET_QOS_INTF_SEL_RMII;
> +		break;
> +	case PHY_INTERFACE_MODE_RGMII:
> +	case PHY_INTERFACE_MODE_RGMII_ID:
> +	case PHY_INTERFACE_MODE_RGMII_RXID:
> +	case PHY_INTERFACE_MODE_RGMII_TXID:
> +		val = MX93_GPR_ENET_QOS_INTF_SEL_RGMII;
> +		break;
> +	default:
> +		pr_debug("imx dwmac doesn't support %d interface\n",
> +			 plat_dat->interface);

netdev_debug(), or dev_debug(), so there is some clue which of the 42
dwmac instances has a bad value in DT.