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-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 72e47621d27c..934c34e98d55 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -65,8 +65,9 @@ static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed)
struct phy_device *phy_dev = ndev->phydev;
u32 val;
- writew(SGMII_ADAPTER_DISABLE,
- sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
+ if (sgmii_adapter_base)
+ writew(SGMII_ADAPTER_DISABLE,
+ sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
if (splitter_base) {
val = readl(splitter_base + EMAC_SPLITTER_CTRL_REG);
@@ -88,10 +89,11 @@ static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed)
writel(val, splitter_base + EMAC_SPLITTER_CTRL_REG);
}
- writew(SGMII_ADAPTER_ENABLE,
- sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
- if (phy_dev)
+ if (phy_dev && sgmii_adapter_base) {
+ writew(SGMII_ADAPTER_ENABLE,
+ sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
tse_pcs_fix_mac_speed(&dwmac->pcs, phy_dev, speed);
+ }
}
static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *dev)