ARM: dts: keystone: add mdio devices entries

The Keystone 2 has MDIO HW block which are compatible
to Davinci SoCs:
See "Gigabit Ethernet (GbE) Switch Subsystem"
  See http://www.ti.com/lit/ug/sprugv9d/sprugv9d.pdf

Hence, add corresponding DT entry for Keystone 2.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
index c1414cb81fd4..9e31fe7d31f8 100644
--- a/arch/arm/boot/dts/keystone.dtsi
+++ b/arch/arm/boot/dts/keystone.dtsi
@@ -266,5 +266,16 @@
                         ranges = <0 0 0x30000000 0x10000000
                                   1 0 0x21000A00 0x00000100>;
                 };
+
+                mdio: mdio@02090300 {
+                        compatible      = "ti,keystone_mdio", "ti,davinci_mdio";
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        reg             = <0x02090300 0x100>;
+                        status = "disabled";
+                        clocks = <&clkpa>;
+                        clock-names = "fck";
+                        bus_freq        = <2500000>;
+                };
         };
 };