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+Xilinx AMS controller
+`````````````````````
+The AMS includes an ADC as well as on-chip sensors that can be used to
+sample external voltages and monitor on-die operating conditions, such as
+temperature and supply voltage levels.
+The AMS has two SYSMON blocks which are PL (Programmable Logic) SYSMON and
+PS (Processing System) SYSMON.
+All designs should have AMS registers, but PS and PL are optional. The
+AMS controller can work with only PS, only PL and both PS and PL
+configurations. Please specify registers according to your design. Devicetree
+should always have AMS module property. Providing PS & PL module is optional.
+
+Required properties:
+	- compatible: Should be "xlnx,zynqmp-ams"
+	- reg: Should specify AMS register space
+	- interrupts: Interrupt number for the AMS control interface
+	- interrupt-names: Interrupt name, must be "ams-irq"
+	- clocks: Should contain a clock specifier for the device
+	- ranges: keep the property empty to map child address space
+	          (for PS and/or PL) nodes 1:1 onto the parent address
+	          space
+
+	AMS sub-nodes:
+		- ams_ps : Used as PS-SYSMON node
+		- ams_pl : Used as PL-SYSMON node
+
+
+
+AMS PS-SYSMON
+`````````````
+PS (Processing System) SYSMON is memory mapped to PS. This block has built-in
+alarm generation logic that is used to interrupt the processor based on
+condition set.
+
+Required properties:
+	- compatible: Should be "xlnx,zynqmp-ams-ps"
+	- reg: Register space for PS-SYSMON
+
+
+
+AMS PL-SYSMON
+`````````````
+PL-SYSMON is capable of monitoring off chip voltage and temperature. PL-SYSMON
+block has DRP, JTAG and I2C interface to enable monitoring from external master.
+Out of this interface currently only DRP is supported. This block has alarm
+generation logic that is used to interrupt the processor based on condition set.
+
+Required properties:
+	- compatible: Should be "xlnx,zynqmp-ams-pl"
+	- reg: Register space for PL-SYSMON
+
+PL-SYSMON optional sub-nodes:
+	- xlnx,ext-channels: List of external channels that are connected to the
+	                     AMS PL module.
+
+	  The child nodes of PL-SYSMON represent the external channels which are
+	  connected to this Module. If the property is not present
+	  no external channels will be assumed to be connected.
+
+	  Each child node represents one channel and has the following
+	  properties:
+
+	Required properties:
+		* reg: Pair of pins the channel is connected to.
+
+		    'reg' value		Channel Name		Channel Number
+		    -----------		------------		--------------
+			 0		VP/VN			      30
+			 1		VUSER0			      31
+			 2		VUSER1			      32
+			 3		VUSER3			      33
+			 4		VUSER4			      34
+			 5		VAUXP[0]/VAUXN[0]	      35
+			 6		VAUXP[1]/VAUXN[1]	      36
+			...
+			20		VAUXP[15]/VAUXN[15]	      50
+
+		Each channel number should only be used at most once. For
+		more details on channels, refer to the table given at the end.
+
+	Optional properties:
+		* xlnx,bipolar: If set the channel is used in bipolar
+		  mode.
+
+
+Example:
+	xilinx_ams: ams@ffa50000 {
+		compatible = "xlnx,zynqmp-ams";
+		interrupt-parent = <&gic>;
+		interrupts = <0 56 4>;
+		interrupt-names = "ams-irq";
+		reg = <0x0 0xffa50000 0x0 0x800>;
+		reg-names = "ams-base";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		#io-channel-cells = <1>;
+		ranges = <0 0 0xffa50800 0x400
+			  1 0 0xffa50c00 0x400>;
+
+		ams_ps: ams_ps@0,0 {
+			compatible = "xlnx,zynqmp-ams-ps";
+			reg = <0 0x400>;
+		};
+
+		ams_pl: ams_pl@1,0 {
+			compatible = "xlnx,zynqmp-ams-pl";
+			reg = <0 0x400>;
+			xlnx,ext-channels {
+				channel@0 {
+					reg = <0>;
+					xlnx,bipolar;
+				};
+				channel@1 {
+					reg = <1>;
+				};
+				channel@8 {
+					reg = <8>;
+					xlnx,bipolar;
+				};
+			};
+		};
+	};
+
+
+AMS Channel Details
+```````````````````
+Sysmon Block	|Channel|			Details					|Measurement
+		|Number	|							 	|Type
+---------------------------------------------------------------------------------------------------------
+AMS CTRL	|0	|System PLLs voltage measurement, VCC_PSPLL.			|Voltage
+		|1	|Battery voltage measurement, VCC_PSBATT.			|Voltage
+		|2	|PL Internal voltage measurement, VCCINT.			|Voltage
+		|3	|Block RAM voltage measurement, VCCBRAM.			|Voltage
+		|4	|PL Aux voltage measurement, VCCAUX.				|Voltage
+		|5	|Voltage measurement for six DDR I/O PLLs, VCC_PSDDR_PLL.	|Voltage
+		|6	|VCC_PSINTFP_DDR voltage measurement.				|Voltage
+---------------------------------------------------------------------------------------------------------
+PS Sysmon	|7	|LPD temperature measurement.					|Temperature
+		|8	|FPD temperature measurement (REMOTE).				|Temperature
+		|9	|VCC PS LPD voltage measurement (supply1).			|Voltage
+		|10	|VCC PS FPD voltage measurement (supply2).			|Voltage
+		|11	|PS Aux voltage reference (supply3).				|Voltage
+		|12	|DDR I/O VCC voltage measurement.				|Voltage
+		|13	|PS IO Bank 503 voltage measurement (supply5).			|Voltage
+		|14	|PS IO Bank 500 voltage measurement (supply6).			|Voltage
+		|15	|VCCO_PSIO1 voltage measurement.				|Voltage
+		|16	|VCCO_PSIO2 voltage measurement.				|Voltage
+		|17	|VCC_PS_GTR voltage measurement (VPS_MGTRAVCC).			|Voltage
+		|18	|VTT_PS_GTR voltage measurement (VPS_MGTRAVTT).			|Voltage
+		|19	|VCC_PSADC voltage measurement.					|Voltage
+---------------------------------------------------------------------------------------------------------
+PL Sysmon	|20	|PL temperature measurement.					|Temperature
+		|21	|PL Internal voltage measurement, VCCINT.			|Voltage
+		|22	|PL Auxiliary voltage measurement, VCCAUX.			|Voltage
+		|23	|ADC Reference P+ voltage measurement.				|Voltage
+		|24	|ADC Reference N- voltage measurement.				|Voltage
+		|25	|PL Block RAM voltage measurement, VCCBRAM.			|Voltage
+		|26	|LPD Internal voltage measurement, VCC_PSINTLP (supply4).	|Voltage
+		|27	|FPD Internal voltage measurement, VCC_PSINTFP (supply5).	|Voltage
+		|28	|PS Auxiliary voltage measurement (supply6).			|Voltage
+		|29	|PL VCCADC voltage measurement (vccams).			|Voltage
+		|30	|Differential analog input signal voltage measurment.		|Voltage
+		|31	|VUser0 voltage measurement (supply7).				|Voltage
+		|32	|VUser1 voltage measurement (supply8).				|Voltage
+		|33	|VUser2 voltage measurement (supply9).				|Voltage
+		|34	|VUser3 voltage measurement (supply10).				|Voltage
+		|35	|Auxiliary ch 0 voltage measurement (VAux0).			|Voltage
+		|36	|Auxiliary ch 1 voltage measurement (VAux1).			|Voltage
+		|37	|Auxiliary ch 2 voltage measurement (VAux2).			|Voltage
+		|38	|Auxiliary ch 3 voltage measurement (VAux3).			|Voltage
+		|39	|Auxiliary ch 4 voltage measurement (VAux4).			|Voltage
+		|40	|Auxiliary ch 5 voltage measurement (VAux5).			|Voltage
+		|41	|Auxiliary ch 6 voltage measurement (VAux6).			|Voltage
+		|42	|Auxiliary ch 7 voltage measurement (VAux7).			|Voltage
+		|43	|Auxiliary ch 8 voltage measurement (VAux8).			|Voltage
+		|44	|Auxiliary ch 9 voltage measurement (VAux9).			|Voltage
+		|45	|Auxiliary ch 10 voltage measurement (VAux10).			|Voltage
+		|46	|Auxiliary ch 11 voltage measurement (VAux11).			|Voltage
+		|47	|Auxiliary ch 12 voltage measurement (VAux12).			|Voltage
+		|48	|Auxiliary ch 13 voltage measurement (VAux13).			|Voltage
+		|49	|Auxiliary ch 14 voltage measurement (VAux14).			|Voltage
+		|50	|Auxiliary ch 15 voltage measurement (VAux15).			|Voltage
+---------------------------------------------------------------------------------------------------------
