diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index c3a7be6615c5..a874e9173f37 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -35,6 +35,8 @@ Optional properties:
   this clock is used for programming the Timestamp Addend Register. If not
   passed then the system clock will be used and this is fine on some
   platforms.
+- snps,ptp-ref-clk-rate: PTP reference clock rate.
+- snps,ptp-req-clk-rate: PTP clock rate for required accuracy.
 - tx-fifo-depth: See ethernet.txt file in the same directory
 - rx-fifo-depth: See ethernet.txt file in the same directory
 - snps,pbl		Programmable Burst Length (tx and rx)
diff --git a/arch/arm64/boot/dts/qcom/sdxprairie.dtsi b/arch/arm64/boot/dts/qcom/sdxprairie.dtsi
index b9dae236a73e..dae543e90ea3 100644
--- a/arch/arm64/boot/dts/qcom/sdxprairie.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdxprairie.dtsi
@@ -1,4 +1,4 @@
-/* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -1414,26 +1414,25 @@
 			snps,dcb-algorithm;
 			snps,map-to-dma-channel = <0x0>;
 			snps,route-up;
-			snps,route-ptp;
-			snps,route-dcbcp;
+			snps,priority = <0x1>;
 		};
 
 		queue1 {
 			snps,dcb-algorithm;
 			snps,map-to-dma-channel = <0x1>;
-			snps,route-avcp;
-			snps,route-multi-broad;
+			snps,route-ptp;
 		};
 
 		queue2 {
 			snps,avb-algorithm;
 			snps,map-to-dma-channel = <0x2>;
+			snps,route-avcp;
 		};
 
 		queue3 {
 			snps,avb-algorithm;
 			snps,map-to-dma-channel = <0x3>;
-			snps,priority = <0x0C>;
+			snps,priority = <0xC>;
 		};
 	};
 
@@ -1477,6 +1476,8 @@
 			<&clock_gcc GCC_ETH_PTP_CLK>,
 			<&clock_gcc GCC_ETH_RGMII_CLK>;
 		clock-names = "stmmaceth", "pclk", "ptp_ref", "rgmii";
+		snps,ptp-ref-clk-rate = <230400000>;
+		snps,ptp-req-clk-rate = <57600000>;
 		interrupts-extended = <&pdc 0 62 4>, <&pdc 0 60 4>,
 			<&tlmm 90 2>, <&pdc 0 290 1>, <&pdc 0 291 1>;
 		interrupt-names = "macirq", "eth_lpi",