arm64: zynqmp: List lpd watchdog in dtsi

There are use cases where lpd watchdog can be configured for APU use. By
design this IP should be listed in zynqmp.dtsi to make sure that node is
properly enabled by DTG.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/arm/dts/zynqmp-clk-ccf.dtsi b/arch/arm/dts/zynqmp-clk-ccf.dtsi
index bd0f8eb..998298c 100644 (file)
--- a/arch/arm/dts/zynqmp-clk-ccf.dtsi
+++ b/arch/arm/dts/zynqmp-clk-ccf.dtsi
@@ -272,6 +272,10 @@
        clocks = <&zynqmp_clk WDT>;
 };
 
+&lpd_watchdog {
+       clocks = <&zynqmp_clk LPD_WDT>;
+};
+
 &xilinx_ams {
        clocks = <&zynqmp_clk AMS_REF>;
 };

diff --git a/arch/arm/dts/zynqmp-clk.dtsi b/arch/arm/dts/zynqmp-clk.dtsi
index c70f85a..9ef55ad 100644 (file)
--- a/arch/arm/dts/zynqmp-clk.dtsi
+++ b/arch/arm/dts/zynqmp-clk.dtsi
@@ -223,6 +223,10 @@
        clocks = <&clk100>;
 };
 
+&lpd_watchdog {
+       clocks = <&clk250>;
+};
+
 &xilinx_drm {
        clocks = <&drm_clock>;
 };

diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi
index 435b1e1..b453941 100644 (file)
--- a/arch/arm/dts/zynqmp.dtsi
+++ b/arch/arm/dts/zynqmp.dtsi
@@ -980,6 +980,15 @@
                        reset-on-timeout;
                };
 
+               lpd_watchdog: watchdog@ff150000 {
+                       compatible = "cdns,wdt-r1p2";
+                       status = "disabled";
+                       interrupt-parent = <&gic>;
+                       interrupts = <0 52 1>;
+                       reg = <0x0 0xff150000 0x0 0x1000>;
+                       timeout-sec = <10>;
+               };
+
                xilinx_ams: ams@ffa50000 {
                        compatible = "xlnx,zynqmp-ams";
                        status = "disabled";