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net: stmmac: stmmac_platform: use correct setup function for gmac4
devicetree binding for stmmac states: - compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac" For backwards compatibility: "st,spear600-gmac" is also supported. Previously, when specifying "snps,dwmac-4.10a", "snps,dwmac" as your compatible string, plat_stmmacenet_data would have both has_gmac and has_gmac4 set. This would lead to stmmac_hw_init calling dwmac1000_setup rather than dwmac4_setup, resulting in a non-functional driver. This happened since the check for has_gmac is done before the check for has_gmac4. However, the order should not matter, so it does not make sense to have both set. If something is valid for both, you should do as the stmmac_interrupt does: if (priv->plat->has_gmac || priv->plat->has_gmac4) ... The places where it was obvious that the author actually meant if (has_gmac || has_gmac4) rather than if (has_gmac) has been updated. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -263,7 +263,7 @@ static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
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{
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struct stmmac_priv *priv = netdev_priv(dev);
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if (priv->plat->has_gmac)
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if (priv->plat->has_gmac || priv->plat->has_gmac4)
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strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
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else
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strlcpy(info->driver, MAC100_ETHTOOL_NAME,
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@ -446,7 +446,7 @@ static void stmmac_ethtool_gregs(struct net_device *dev,
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memset(reg_space, 0x0, REG_SPACE_SIZE);
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if (!priv->plat->has_gmac) {
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if (!(priv->plat->has_gmac || priv->plat->has_gmac4)) {
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/* MAC registers */
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for (i = 0; i < 12; i++)
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reg_space[i] = readl(priv->ioaddr + (i * 4));
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@ -292,6 +292,7 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
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if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
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of_device_is_compatible(np, "snps,dwmac-4.10a")) {
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plat->has_gmac4 = 1;
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plat->has_gmac = 0;
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plat->pmt = 1;
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plat->tso_en = of_property_read_bool(np, "snps,tso");
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}
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