1*c66ec88fSEmmanuel Vadot# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*c66ec88fSEmmanuel Vadot%YAML 1.2 3*c66ec88fSEmmanuel Vadot--- 4*c66ec88fSEmmanuel Vadot$id: http://devicetree.org/schemas/timer/nxp,sysctr-timer.yaml# 5*c66ec88fSEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml# 6*c66ec88fSEmmanuel Vadot 7*c66ec88fSEmmanuel Vadottitle: NXP System Counter Module(sys_ctr) 8*c66ec88fSEmmanuel Vadot 9*c66ec88fSEmmanuel Vadotmaintainers: 10*c66ec88fSEmmanuel Vadot - Bai Ping <ping.bai@nxp.com> 11*c66ec88fSEmmanuel Vadot 12*c66ec88fSEmmanuel Vadotdescription: | 13*c66ec88fSEmmanuel Vadot The system counter(sys_ctr) is a programmable system counter 14*c66ec88fSEmmanuel Vadot which provides a shared time base to Cortex A15, A7, A53, A73, 15*c66ec88fSEmmanuel Vadot etc. it is intended for use in applications where the counter 16*c66ec88fSEmmanuel Vadot is always powered and support multiple, unrelated clocks. The 17*c66ec88fSEmmanuel Vadot compare frame inside can be used for timer purpose. 18*c66ec88fSEmmanuel Vadot 19*c66ec88fSEmmanuel Vadotproperties: 20*c66ec88fSEmmanuel Vadot compatible: 21*c66ec88fSEmmanuel Vadot const: nxp,sysctr-timer 22*c66ec88fSEmmanuel Vadot 23*c66ec88fSEmmanuel Vadot reg: 24*c66ec88fSEmmanuel Vadot maxItems: 1 25*c66ec88fSEmmanuel Vadot 26*c66ec88fSEmmanuel Vadot interrupts: 27*c66ec88fSEmmanuel Vadot maxItems: 1 28*c66ec88fSEmmanuel Vadot 29*c66ec88fSEmmanuel Vadot clocks: 30*c66ec88fSEmmanuel Vadot maxItems: 1 31*c66ec88fSEmmanuel Vadot 32*c66ec88fSEmmanuel Vadot clock-names: 33*c66ec88fSEmmanuel Vadot const: per 34*c66ec88fSEmmanuel Vadot 35*c66ec88fSEmmanuel Vadotrequired: 36*c66ec88fSEmmanuel Vadot - compatible 37*c66ec88fSEmmanuel Vadot - reg 38*c66ec88fSEmmanuel Vadot - interrupts 39*c66ec88fSEmmanuel Vadot - clocks 40*c66ec88fSEmmanuel Vadot - clock-names 41*c66ec88fSEmmanuel Vadot 42*c66ec88fSEmmanuel VadotadditionalProperties: false 43*c66ec88fSEmmanuel Vadot 44*c66ec88fSEmmanuel Vadotexamples: 45*c66ec88fSEmmanuel Vadot - | 46*c66ec88fSEmmanuel Vadot #include <dt-bindings/interrupt-controller/arm-gic.h> 47*c66ec88fSEmmanuel Vadot 48*c66ec88fSEmmanuel Vadot timer@306a0000 { 49*c66ec88fSEmmanuel Vadot compatible = "nxp,sysctr-timer"; 50*c66ec88fSEmmanuel Vadot reg = <0x306a0000 0x20000>; 51*c66ec88fSEmmanuel Vadot clocks = <&clk_8m>; 52*c66ec88fSEmmanuel Vadot clock-names = "per"; 53*c66ec88fSEmmanuel Vadot interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>; 54*c66ec88fSEmmanuel Vadot }; 55