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diff --git a/drivers/net/ethernet/xilinx/xilinx_emacps.c b/drivers/net/ethernet/xilinx/xilinx_emacps.c
index a4289f9..c28e6da 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emacps.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emacps.c
@@ -480,6 +480,10 @@ MDC_DIV_64, MDC_DIV_96, MDC_DIV_128, MDC_DIV_224 };
#define XEMACPS_PTP_CC_MULT (1 << 31)
#endif
+/* Elphel */
+#define AT803X_PHY_ID 0x004dd072 /*Particular one, AR8035 but we'll use a broad mask */
+#define AT803X_PHY_ID_MASK 0xffffffe0
+
#define xemacps_read(base, reg) \
readl_relaxed(((void __iomem *)(base)) + (reg))
#define xemacps_write(base, reg, val) \
@@ -872,6 +876,51 @@ static int xemacps_mii_probe(struct net_device *ndev)
return 0;
}
+/* http://www.spinics.net/lists/devicetree/msg06322.html */
+static int ar8035_phy_fixup(struct phy_device *dev)
+{
+ u16 val;
+ // Elphel: phy_device has changed
+ //struct net_local *lp = dev->bus->priv;
+ struct net_local *lp = dev->(&mdio)->bus->priv;
+ dev_dbg(&lp->pdev->dev,"fixup start");
+
+ /* Ar803x phy SmartEEE feature cause link status generates glitch,
+ * which cause ethernet link down/up issue, so disable SmartEEE
+ */
+ phy_write(dev, 0xd, 0x3);
+ phy_write(dev, 0xe, 0x805d);
+ phy_write(dev, 0xd, 0x4003);
+
+ val = phy_read(dev, 0xe);
+ phy_write(dev, 0xe, val & ~(1 << 8));
+ /*Enable if needed */
+#if 0
+ /* To enable AR8031 output a 125MHz clk from CLK_25M */
+ phy_write(dev, 0xd, 0x7);
+ phy_write(dev, 0xe, 0x8016);
+ phy_write(dev, 0xd, 0x4007);
+
+ val = phy_read(dev, 0xe);
+ val &= 0xffe3;
+ val |= 0x18;
+ phy_write(dev, 0xe, val);
+#endif
+/* Next one what is really needed for Elphel 393 */
+ /* introduce tx clock delay */
+ phy_write(dev, 0x1d, 0x5);
+ val = phy_read(dev, 0x1e);
+ val |= 0x0100;
+ phy_write(dev, 0x1e, val);
+
+ /*check phy power*/
+ val = phy_read(dev, 0x0);
+ if (val & BMCR_PDOWN)
+ phy_write(dev, 0x0, val & ~BMCR_PDOWN);
+ dev_dbg(&lp->pdev->dev,"fixup end");
+ return 0;
+}
+
/**
* xemacps_mii_init - Initialize and register mii bus to network device
* @lp: local device instance pointer
@@ -884,6 +933,8 @@ static int xemacps_mii_init(struct net_local *lp)
struct device_node *np = of_get_parent(lp->phy_node);
struct device_node *npp;
+ phy_register_fixup_for_uid(AT803X_PHY_ID, AT803X_PHY_ID_MASK, ar8035_phy_fixup);
+
lp->mii_bus = of_mdio_find_bus(np);
if (!lp->has_mdio && lp->mii_bus)
return 0;