EMAC_BASIC_CTL1
writel(v, ioaddr + EMAC_BASIC_CTL1);
v = readl(priv->ioaddr + EMAC_BASIC_CTL1);
writel(v | 0x01, priv->ioaddr + EMAC_BASIC_CTL1);
err = readl_poll_timeout(priv->ioaddr + EMAC_BASIC_CTL1, v,