net: stmmac: switch to use interrupt for hw crosstimestamping

[platform/kernel/linux-starfive.git] / drivers / net / ethernet / stmicro / stmmac / dwmac4_core.c

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index fd41db6..d5299dd 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -23,6 +23,7 @@
 static void dwmac4_core_init(struct mac_device_info *hw,
                             struct net_device *dev)
 {
+       struct stmmac_priv *priv = netdev_priv(dev);
        void __iomem *ioaddr = hw->pcsr;
        u32 value = readl(ioaddr + GMAC_CONFIG);
 
@@ -58,6 +59,9 @@ static void dwmac4_core_init(struct mac_device_info *hw,
                value |= GMAC_INT_FPE_EN;
 
        writel(value, ioaddr + GMAC_INT_EN);
+
+       if (GMAC_INT_DEFAULT_ENABLE & GMAC_INT_TSIE)
+               init_waitqueue_head(&priv->tstamp_busy_wait);
 }
 
 static void dwmac4_rx_queue_enable(struct mac_device_info *hw,