diff options
| -rw-r--r-- | drivers/net/xilinx_axi_emac.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/net/xilinx_axi_emac.c b/drivers/net/xilinx_axi_emac.c index 46b8d2d07e..3d69bed309 100644 --- a/drivers/net/xilinx_axi_emac.c +++ b/drivers/net/xilinx_axi_emac.c @@ -264,11 +264,29 @@ static int axiemac_phy_init(struct udevice *dev) /* Setting axi emac and phy to proper setting */ static int setup_phy(struct udevice *dev) { - u32 speed, emmc_reg; + u16 temp; + u32 speed, emmc_reg, ret; struct axidma_priv *priv = dev_get_priv(dev); struct axi_regs *regs = priv->iobase; struct phy_device *phydev = priv->phydev; + if (priv->interface == PHY_INTERFACE_MODE_SGMII) { + /* + * In SGMII cases the isolate bit might set + * after DMA and ethernet resets and hence + * check and clear if set. + */ + ret = phyread(priv, priv->phyaddr, MII_BMCR, &temp); + if (ret) + return 0; + if (temp & BMCR_ISOLATE) { + temp &= ~BMCR_ISOLATE; + ret = phywrite(priv, priv->phyaddr, MII_BMCR, temp); + if (ret) + return 0; + } + } + if (phy_startup(phydev)) { printf("axiemac: could not initialize PHY %s\n", phydev->dev->name); |