1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2 %YAML 1.2 3 --- 4 $id: http://devicetree.org/schemas/timer/nxp,sysctr-timer.yaml# 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 6 7 title: NXP System Counter Module(sys_ctr) 8 9 maintainers: 10 - Bai Ping <ping.bai@nxp.com> 11 12 description: | 13 The system counter(sys_ctr) is a programmable system counter 14 which provides a shared time base to Cortex A15, A7, A53, A73, 15 etc. it is intended for use in applications where the counter 16 is always powered and support multiple, unrelated clocks. The 17 compare frame inside can be used for timer purpose. 18 19 properties: 20 compatible: 21 const: nxp,sysctr-timer 22 23 reg: 24 maxItems: 1 25 26 interrupts: 27 maxItems: 1 28 29 clocks: 30 maxItems: 1 31 32 clock-names: 33 const: per 34 35 nxp,no-divider: 36 description: if present, means there is no internal base clk divider. 37 type: boolean 38 39 required: 40 - compatible 41 - reg 42 - interrupts 43 - clocks 44 - clock-names 45 46 additionalProperties: false 47 48 examples: 49 - | 50 #include <dt-bindings/interrupt-controller/arm-gic.h> 51 52 timer@306a0000 { 53 compatible = "nxp,sysctr-timer"; 54 reg = <0x306a0000 0x20000>; 55 clocks = <&clk_8m>; 56 clock-names = "per"; 57 interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>; 58 }; 59