[PATCH net-next] stmmac: added device tree support for fixed_phy and phy_addr

[Byungho An <bh74.an@samsung.com>]

This patch adds device tree support for fixed_phy and phy_addr it means
fixed_phy and phy_addr can be set in device tree file. "fixed_phy" and
"phy_addr" can be added in the device tree blob. 

Signed-off-by: Byungho An <bh74.an@samsung.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 1d3780f..33ba995 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -34,6 +34,7 @@ static int stmmac_probe_config_dt(struct platform_device
*pdev,
 				  const char **mac)
 {
 	struct device_node *np = pdev->dev.of_node;
+	u32 phy_addr;
 
 	if (!np)
 		return -ENODEV;
@@ -56,6 +57,12 @@ static int stmmac_probe_config_dt(struct platform_device
*pdev,
 		plat->pmt = 1;
 	}
 
+	if (of_find_property(np, "fixed_phy", NULL)) {
+		plat->phy_bus_name = "fixed";
+		of_property_read_u32(np, "phy_addr", &phy_addr);
+		plat->phy_addr = phy_addr;
+	}
+
 	return 0;
 }
 #else
-- 
1.7.10.4