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>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

7 files changed, 33 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/uniphier-common32.dtsi b/arch/arm/boot/dts/uniphier-common32.dtsi
index f847e6878011..61a095598206 100644
--- a/arch/arm/boot/dts/uniphier-common32.dtsi
+++ b/arch/arm/boot/dts/uniphier-common32.dtsi
@@ -45,6 +45,13 @@
 /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/boot/dts/uniphier-ph1-ld4.dtsi b/arch/arm/boot/dts/uniphier-ph1-ld4.dtsi
index 34f0d8dcd814..dadd86070c98 100644
--- a/arch/arm/boot/dts/uniphier-ph1-ld4.dtsi
+++ b/arch/arm/boot/dts/uniphier-ph1-ld4.dtsi
@@ -173,6 +173,10 @@
 
 };
 
+&refclk {
+        clock-frequency = <24576000>;
+};
+
 &serial3 {
         interrupts = <0 29 4>;
 };
diff --git a/arch/arm/boot/dts/uniphier-ph1-pro4.dtsi b/arch/arm/boot/dts/uniphier-ph1-pro4.dtsi
index d78142fb35c4..20f3f2ae7fa4 100644
--- a/arch/arm/boot/dts/uniphier-ph1-pro4.dtsi
+++ b/arch/arm/boot/dts/uniphier-ph1-pro4.dtsi
@@ -195,6 +195,10 @@
         };
 };
 
+&refclk {
+        clock-frequency = <25000000>;
+};
+
 &pinctrl {
         compatible = "socionext,ph1-pro4-pinctrl", "syscon";
 };
diff --git a/arch/arm/boot/dts/uniphier-ph1-pro5.dtsi b/arch/arm/boot/dts/uniphier-ph1-pro5.dtsi
index 2f389ea75e01..24f6f664b269 100644
--- a/arch/arm/boot/dts/uniphier-ph1-pro5.dtsi
+++ b/arch/arm/boot/dts/uniphier-ph1-pro5.dtsi
@@ -189,6 +189,10 @@
         };
 };
 
+&refclk {
+        clock-frequency = <20000000>;
+};
+
 &pinctrl {
         compatible = "socionext,ph1-pro5-pinctrl", "syscon";
 };
diff --git a/arch/arm/boot/dts/uniphier-ph1-sld3.dtsi b/arch/arm/boot/dts/uniphier-ph1-sld3.dtsi
index 4c746ea24ee1..03292f443305 100644
--- a/arch/arm/boot/dts/uniphier-ph1-sld3.dtsi
+++ b/arch/arm/boot/dts/uniphier-ph1-sld3.dtsi
@@ -68,6 +68,12 @@
         };
 
         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/boot/dts/uniphier-ph1-sld8.dtsi b/arch/arm/boot/dts/uniphier-ph1-sld8.dtsi
index 7d06a1c487d8..6bfd29a05575 100644
--- a/arch/arm/boot/dts/uniphier-ph1-sld8.dtsi
+++ b/arch/arm/boot/dts/uniphier-ph1-sld8.dtsi
@@ -172,6 +172,10 @@
         };
 };
 
+&refclk {
+        clock-frequency = <25000000>;
+};
+
 &serial3 {
         interrupts = <0 29 4>;
 };
diff --git a/arch/arm/boot/dts/uniphier-proxstream2.dtsi b/arch/arm/boot/dts/uniphier-proxstream2.dtsi
index 6bd353f2d77e..4ac484c6ce4e 100644
--- a/arch/arm/boot/dts/uniphier-proxstream2.dtsi
+++ b/arch/arm/boot/dts/uniphier-proxstream2.dtsi
@@ -200,6 +200,10 @@
         };
 };
 
+&refclk {
+        clock-frequency = <25000000>;
+};
+
 &pinctrl {
         compatible = "socionext,proxstream2-pinctrl", "syscon";
 };