arm64: dts: marvell: Add xtal clock support for Armada 3700

The configuration of the clock depend of the gpio latch. This information
is stored in the gpio block registers. That's why the block is shared
using a syscon node.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 9e2efb8..7c61e13 100644 (file)
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -105,6 +105,18 @@
                                status = "disabled";
                        };
 
+                       gpio1: gpio@13800 {
+                               compatible = "marvell,mvebu-gpio-3700",
+                               "syscon", "simple-mfd";
+                               reg = <0x13800 0x500>;
+
+                               xtalclk: xtal-clk {
+                                       compatible = "marvell,armada-3700-xtal-clock";
+                                       clock-output-names = "xtal";
+                                       #clock-cells = <0>;
+                               };
+                       };
+
                        usb3: usb@58000 {
                                compatible = "marvell,armada3700-xhci",
                                "generic-xhci";