Message ID | 1481114469-4788-3-git-send-email-niklass@axis.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
From: Niklas Cassel <niklas.cassel@axis.com> Date: Wed, 7 Dec 2016 13:41:08 +0100 > From: Niklas Cassel <niklas.cassel@axis.com> > > 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> Applied.
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c index d5a8122b6033..dd5b38e4cd1f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c @@ -263,7 +263,7 @@ static void stmmac_ethtool_getdrvinfo(struct net_device *dev, { struct stmmac_priv *priv = netdev_priv(dev); - if (priv->plat->has_gmac) + if (priv->plat->has_gmac || priv->plat->has_gmac4) strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver)); else strlcpy(info->driver, MAC100_ETHTOOL_NAME, @@ -448,7 +448,7 @@ static void stmmac_ethtool_gregs(struct net_device *dev, memset(reg_space, 0x0, REG_SPACE_SIZE); - if (!priv->plat->has_gmac) { + if (!(priv->plat->has_gmac || priv->plat->has_gmac4)) { /* MAC registers */ for (i = 0; i < 12; i++) reg_space[i] = readl(priv->ioaddr + (i * 4)); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index e528e7126b65..d3b6f92f350a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -292,6 +292,7 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) if (of_device_is_compatible(np, "snps,dwmac-4.00") || of_device_is_compatible(np, "snps,dwmac-4.10a")) { plat->has_gmac4 = 1; + plat->has_gmac = 0; plat->pmt = 1; plat->tso_en = of_property_read_bool(np, "snps,tso"); }