From cc33609546e1e4c6c7bb59026eca7463765be61e Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Tue, 2 Feb 2016 21:11:33 +0900
Subject: ARM: dts: uniphier: add reference clock nodes

Add master clock nodes generated by crystal oscillators.

  PH1-sLD3, PH1-LD4: 24.576 MHz
  PH1-Pro4, ProXstream2: 25.000 MHz
  PH1-Pro5: 20.000 MHz

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/arch/arm/dts/uniphier-common32.dtsi b/arch/arm/dts/uniphier-common32.dtsi
index 5d4b2cf..de04de1 100644
--- a/arch/arm/dts/uniphier-common32.dtsi
+++ b/arch/arm/dts/uniphier-common32.dtsi
@@ -9,6 +9,13 @@
 /include/ "skeleton.dtsi"
 
 / {
+	clocks {
+		refclk: ref {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+		};
+	};
+
 	soc: soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
diff --git a/arch/arm/dts/uniphier-ph1-ld4.dtsi b/arch/arm/dts/uniphier-ph1-ld4.dtsi
index 856c207..6f15978 100644
--- a/arch/arm/dts/uniphier-ph1-ld4.dtsi
+++ b/arch/arm/dts/uniphier-ph1-ld4.dtsi
@@ -136,6 +136,10 @@
 	};
 };
 
+&refclk {
+	clock-frequency = <24576000>;
+};
+
 &serial0 {
 	clock-frequency = <36864000>;
 };
diff --git a/arch/arm/dts/uniphier-ph1-pro4.dtsi b/arch/arm/dts/uniphier-ph1-pro4.dtsi
index 244ccf6..a236dbc 100644
--- a/arch/arm/dts/uniphier-ph1-pro4.dtsi
+++ b/arch/arm/dts/uniphier-ph1-pro4.dtsi
@@ -177,6 +177,10 @@
 	};
 };
 
+&refclk {
+	clock-frequency = <25000000>;
+};
+
 &serial0 {
 	clock-frequency = <73728000>;
 };
diff --git a/arch/arm/dts/uniphier-ph1-pro5.dtsi b/arch/arm/dts/uniphier-ph1-pro5.dtsi
index 0049106..120767c 100644
--- a/arch/arm/dts/uniphier-ph1-pro5.dtsi
+++ b/arch/arm/dts/uniphier-ph1-pro5.dtsi
@@ -171,6 +171,10 @@
 	};
 };
 
+&refclk {
+	clock-frequency = <20000000>;
+};
+
 &serial0 {
 	clock-frequency = <73728000>;
 };
diff --git a/arch/arm/dts/uniphier-ph1-sld3.dtsi b/arch/arm/dts/uniphier-ph1-sld3.dtsi
index f481521..9ff9584 100644
--- a/arch/arm/dts/uniphier-ph1-sld3.dtsi
+++ b/arch/arm/dts/uniphier-ph1-sld3.dtsi
@@ -30,6 +30,12 @@
 	};
 
 	clocks {
+		refclk: ref {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <24576000>;
+		};
+
 		arm_timer_clk: arm_timer_clk {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
diff --git a/arch/arm/dts/uniphier-ph1-sld8.dtsi b/arch/arm/dts/uniphier-ph1-sld8.dtsi
index cb28bc4..e765a4b 100644
--- a/arch/arm/dts/uniphier-ph1-sld8.dtsi
+++ b/arch/arm/dts/uniphier-ph1-sld8.dtsi
@@ -136,6 +136,10 @@
 	};
 };
 
+&refclk {
+	clock-frequency = <25000000>;
+};
+
 &serial0 {
 	clock-frequency = <80000000>;
 };
diff --git a/arch/arm/dts/uniphier-proxstream2.dtsi b/arch/arm/dts/uniphier-proxstream2.dtsi
index 3ba6a4a..c7423ff 100644
--- a/arch/arm/dts/uniphier-proxstream2.dtsi
+++ b/arch/arm/dts/uniphier-proxstream2.dtsi
@@ -182,6 +182,10 @@
 	};
 };
 
+&refclk {
+	clock-frequency = <25000000>;
+};
+
 &serial0 {
 	clock-frequency = <88900000>;
 };
-- 
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