qemuzynq: Add fixed-clock to device tree for ethernet

* Add a fixed 125 MHz clock to trick the ethernet driver into thinking
  the reference clock is at the correct frequency
* This masks the 'macb e000b000.ps7-ethernet eth0: unable to generate
  target frequency: 125000000 Hz' message from the macb driver

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/conf/machine/boards/qemu/qemuzynq-base.dtsi b/conf/machine/boards/qemu/qemuzynq-base.dtsi
index 3914510d..a2f06657 100644
--- a/conf/machine/boards/qemu/qemuzynq-base.dtsi
+++ b/conf/machine/boards/qemu/qemuzynq-base.dtsi
@@ -9,7 +9,14 @@
                 reg = <0x0 0x40000000>;
         } ;
         ps7_axi_interconnect_0: amba@0 {
+                /* Setup a fixed 125 MHz clock to trick the ethernet driver */
+                clk125mhz: clock {
+                        #clock-cells = <0>;
+                        compatible = "fixed-clock";
+                        clock-frequency = <125000000>;
+                } ;
                 ps7_ethernet_0: ps7-ethernet@e000b000 {
+                        clocks = <&clkc 30>, <&clkc 30>, <&clk125mhz>, <&clk125mhz>, <&clkc 30>;
                         phy-handle = <&phy0>;
                         phy-mode = "gmii";
                         mdio {
@@ -49,7 +56,7 @@
                                 };
                         } ;
                 } ;
-                
+
                 /* Disabled Devices */
                 ps7_gpio_0: ps7-gpio@e000a000 { compatible = "invalid"; };
                 ps7_uart_0: serial@e0000000 { compatible = "invalid"; };