18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 28c2ecf20Sopenharmony_ci%YAML 1.2 38c2ecf20Sopenharmony_ci--- 48c2ecf20Sopenharmony_ci$id: http://devicetree.org/schemas/timer/renesas,ostm.yaml# 58c2ecf20Sopenharmony_ci$schema: http://devicetree.org/meta-schemas/core.yaml# 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_cititle: Renesas OS Timer (OSTM) 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_cimaintainers: 108c2ecf20Sopenharmony_ci - Chris Brandt <chris.brandt@renesas.com> 118c2ecf20Sopenharmony_ci - Geert Uytterhoeven <geert+renesas@glider.be> 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_cidescription: 148c2ecf20Sopenharmony_ci The OSTM is a multi-channel 32-bit timer/counter with fixed clock source that 158c2ecf20Sopenharmony_ci can operate in either interval count down timer or free-running compare match 168c2ecf20Sopenharmony_ci mode. 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci Channels are independent from each other. 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ciproperties: 218c2ecf20Sopenharmony_ci compatible: 228c2ecf20Sopenharmony_ci items: 238c2ecf20Sopenharmony_ci - enum: 248c2ecf20Sopenharmony_ci - renesas,r7s72100-ostm # RZ/A1H 258c2ecf20Sopenharmony_ci - renesas,r7s9210-ostm # RZ/A2M 268c2ecf20Sopenharmony_ci - const: renesas,ostm # Generic 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci reg: 298c2ecf20Sopenharmony_ci maxItems: 1 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci interrupts: 328c2ecf20Sopenharmony_ci maxItems: 1 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci clocks: 358c2ecf20Sopenharmony_ci maxItems: 1 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ci power-domains: 388c2ecf20Sopenharmony_ci maxItems: 1 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_cirequired: 418c2ecf20Sopenharmony_ci - compatible 428c2ecf20Sopenharmony_ci - reg 438c2ecf20Sopenharmony_ci - interrupts 448c2ecf20Sopenharmony_ci - clocks 458c2ecf20Sopenharmony_ci - power-domains 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ciadditionalProperties: false 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ciexamples: 508c2ecf20Sopenharmony_ci - | 518c2ecf20Sopenharmony_ci #include <dt-bindings/clock/r7s72100-clock.h> 528c2ecf20Sopenharmony_ci #include <dt-bindings/interrupt-controller/arm-gic.h> 538c2ecf20Sopenharmony_ci ostm0: timer@fcfec000 { 548c2ecf20Sopenharmony_ci compatible = "renesas,r7s72100-ostm", "renesas,ostm"; 558c2ecf20Sopenharmony_ci reg = <0xfcfec000 0x30>; 568c2ecf20Sopenharmony_ci interrupts = <GIC_SPI 102 IRQ_TYPE_EDGE_RISING>; 578c2ecf20Sopenharmony_ci clocks = <&mstp5_clks R7S72100_CLK_OSTM0>; 588c2ecf20Sopenharmony_ci power-domains = <&cpg_clocks>; 598c2ecf20Sopenharmony_ci }; 60