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SubjectRe: [PATCH 2/2] net: Add driver for LiteX's LiteETH network interface
> +static void liteeth_reset_hw(struct liteeth *priv)
> +{
> + /* Reset, twice */
> + writeb(0, priv->base + LITEETH_PHY_CRG_RESET);
> + udelay(10);
> + writeb(1, priv->base + LITEETH_PHY_CRG_RESET);
> + udelay(10);
> + writeb(0, priv->base + LITEETH_PHY_CRG_RESET);
> + udelay(10);

What is this actually resetting?

> +static int liteeth_probe(struct platform_device *pdev)
> +{
> + struct net_device *netdev;
> + void __iomem *buf_base;
> + struct resource *res;
> + struct liteeth *priv;
> + int irq, err;
> +
> + netdev = alloc_etherdev(sizeof(*priv));
> + if (!netdev)
> + return -ENOMEM;
> +
> + priv = netdev_priv(netdev);
> + priv->netdev = netdev;
> + priv->dev = &pdev->dev;
> +
> + irq = platform_get_irq(pdev, 0);
> + if (irq < 0) {
> + dev_err(&pdev->dev, "Failed to get IRQ\n");
> + goto err;
> + }
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + priv->base = devm_ioremap_resource(&pdev->dev, res);
> + if (IS_ERR(priv->base)) {
> + err = PTR_ERR(priv->base);
> + goto err;
> + }
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> + priv->mdio_base = devm_ioremap_resource(&pdev->dev, res);
> + if (IS_ERR(priv->mdio_base)) {
> + err = PTR_ERR(priv->mdio_base);
> + goto err;
> + }

So you don't have any PHY handling, or any MDIO bus master code. So i
would drop this, until the MDIO architecture question is answered. I
also wonder how much use the MAC driver is without any PHY code?
Unless you have a good reason, i don't think we should merge this
until it makes the needed calls into phylib. It is not much code to
add.

Andrew

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