18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 28c2ecf20Sopenharmony_ci%YAML 1.2 38c2ecf20Sopenharmony_ci--- 48c2ecf20Sopenharmony_ci$id: http://devicetree.org/schemas/timer/nxp,sysctr-timer.yaml# 58c2ecf20Sopenharmony_ci$schema: http://devicetree.org/meta-schemas/core.yaml# 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_cititle: NXP System Counter Module(sys_ctr) 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_cimaintainers: 108c2ecf20Sopenharmony_ci - Bai Ping <ping.bai@nxp.com> 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_cidescription: | 138c2ecf20Sopenharmony_ci The system counter(sys_ctr) is a programmable system counter 148c2ecf20Sopenharmony_ci which provides a shared time base to Cortex A15, A7, A53, A73, 158c2ecf20Sopenharmony_ci etc. it is intended for use in applications where the counter 168c2ecf20Sopenharmony_ci is always powered and support multiple, unrelated clocks. The 178c2ecf20Sopenharmony_ci compare frame inside can be used for timer purpose. 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ciproperties: 208c2ecf20Sopenharmony_ci compatible: 218c2ecf20Sopenharmony_ci const: nxp,sysctr-timer 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci reg: 248c2ecf20Sopenharmony_ci maxItems: 1 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ci interrupts: 278c2ecf20Sopenharmony_ci maxItems: 1 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci clocks: 308c2ecf20Sopenharmony_ci maxItems: 1 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci clock-names: 338c2ecf20Sopenharmony_ci const: per 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_cirequired: 368c2ecf20Sopenharmony_ci - compatible 378c2ecf20Sopenharmony_ci - reg 388c2ecf20Sopenharmony_ci - interrupts 398c2ecf20Sopenharmony_ci - clocks 408c2ecf20Sopenharmony_ci - clock-names 418c2ecf20Sopenharmony_ci 428c2ecf20Sopenharmony_ciadditionalProperties: false 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ciexamples: 458c2ecf20Sopenharmony_ci - | 468c2ecf20Sopenharmony_ci #include <dt-bindings/interrupt-controller/arm-gic.h> 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci timer@306a0000 { 498c2ecf20Sopenharmony_ci compatible = "nxp,sysctr-timer"; 508c2ecf20Sopenharmony_ci reg = <0x306a0000 0x20000>; 518c2ecf20Sopenharmony_ci clocks = <&clk_8m>; 528c2ecf20Sopenharmony_ci clock-names = "per"; 538c2ecf20Sopenharmony_ci interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>; 548c2ecf20Sopenharmony_ci }; 55