1*4882a593Smuzhiyun# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*4882a593Smuzhiyun# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ 3*4882a593Smuzhiyun%YAML 1.2 4*4882a593Smuzhiyun--- 5*4882a593Smuzhiyun$id: http://devicetree.org/schemas/mfd/ti,j721e-system-controller.yaml# 6*4882a593Smuzhiyun$schema: http://devicetree.org/meta-schemas/core.yaml# 7*4882a593Smuzhiyun 8*4882a593Smuzhiyuntitle: TI J721e System Controller Registers R/W Device Tree Bindings 9*4882a593Smuzhiyun 10*4882a593Smuzhiyundescription: | 11*4882a593Smuzhiyun This represents the Control Module registers (CTRL_MMR0) on the SoC. 12*4882a593Smuzhiyun System controller node represents a register region containing a set 13*4882a593Smuzhiyun of miscellaneous registers. The registers are not cohesive enough to 14*4882a593Smuzhiyun represent as any specific type of device. The typical use-case is 15*4882a593Smuzhiyun for some other node's driver, or platform-specific code, to acquire 16*4882a593Smuzhiyun a reference to the syscon node (e.g. by phandle, node path, or 17*4882a593Smuzhiyun search using a specific compatible value), interrogate the node (or 18*4882a593Smuzhiyun associated OS driver) to determine the location of the registers, 19*4882a593Smuzhiyun and access the registers directly. 20*4882a593Smuzhiyun 21*4882a593Smuzhiyunmaintainers: 22*4882a593Smuzhiyun - Kishon Vijay Abraham I <kishon@ti.com> 23*4882a593Smuzhiyun - Roger Quadros <rogerq@ti.com 24*4882a593Smuzhiyun 25*4882a593Smuzhiyunproperties: 26*4882a593Smuzhiyun compatible: 27*4882a593Smuzhiyun items: 28*4882a593Smuzhiyun - enum: 29*4882a593Smuzhiyun - ti,j721e-system-controller 30*4882a593Smuzhiyun - const: syscon 31*4882a593Smuzhiyun - const: simple-mfd 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun reg: 34*4882a593Smuzhiyun maxItems: 1 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun "#address-cells": 37*4882a593Smuzhiyun const: 1 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun "#size-cells": 40*4882a593Smuzhiyun const: 1 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun ranges: true 43*4882a593Smuzhiyun 44*4882a593SmuzhiyunpatternProperties: 45*4882a593Smuzhiyun # Optional children 46*4882a593Smuzhiyun "^serdes-ln-ctrl@[0-9a-f]+$": 47*4882a593Smuzhiyun type: object 48*4882a593Smuzhiyun description: | 49*4882a593Smuzhiyun This is the SERDES lane control mux. It should follow the bindings 50*4882a593Smuzhiyun specified in 51*4882a593Smuzhiyun Documentation/devicetree/bindings/mux/reg-mux.txt 52*4882a593Smuzhiyun 53*4882a593Smuzhiyunrequired: 54*4882a593Smuzhiyun - compatible 55*4882a593Smuzhiyun - reg 56*4882a593Smuzhiyun - "#address-cells" 57*4882a593Smuzhiyun - "#size-cells" 58*4882a593Smuzhiyun - ranges 59*4882a593Smuzhiyun 60*4882a593SmuzhiyunadditionalProperties: false 61*4882a593Smuzhiyun 62*4882a593Smuzhiyunexamples: 63*4882a593Smuzhiyun - | 64*4882a593Smuzhiyun scm_conf: scm-conf@100000 { 65*4882a593Smuzhiyun compatible = "ti,j721e-system-controller", "syscon", "simple-mfd"; 66*4882a593Smuzhiyun reg = <0x00100000 0x1c000>; 67*4882a593Smuzhiyun #address-cells = <1>; 68*4882a593Smuzhiyun #size-cells = <1>; 69*4882a593Smuzhiyun ranges; 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun serdes_ln_ctrl: serdes-ln-ctrl@4080 { 72*4882a593Smuzhiyun compatible = "mmio-mux"; 73*4882a593Smuzhiyun reg = <0x00004080 0x50>; 74*4882a593Smuzhiyun }; 75*4882a593Smuzhiyun }; 76*4882a593Smuzhiyun... 77