1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/bus/ti-sysc.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Texas Instruments interconnect target module 8 9maintainers: 10 - Tony Lindgren <tony@atomide.com> 11 12description: 13 Texas Instruments SoCs can have a generic interconnect target module 14 for devices connected to various interconnects such as L3 interconnect 15 using Arteris NoC, and L4 interconnect using Sonics s3220. This module 16 is mostly used for interaction between module and Power, Reset and Clock 17 Manager PRCM. It participates in the OCP Disconnect Protocol, but other 18 than that it is mostly independent of the interconnect. 19 20 Each interconnect target module can have one or more devices connected to 21 it. There is a set of control registers for managing the interconnect target 22 module clocks, idle modes and interconnect level resets. 23 24 The interconnect target module control registers are sprinkled into the 25 unused register address space of the first child device IP block managed by 26 the interconnect target module. Typically the register names are REVISION, 27 SYSCONFIG and SYSSTATUS. 28 29properties: 30 $nodename: 31 pattern: "^target-module(@[0-9a-f]+)?$" 32 33 compatible: 34 oneOf: 35 - items: 36 - enum: 37 - ti,sysc-omap2 38 - ti,sysc-omap4 39 - ti,sysc-omap4-simple 40 - ti,sysc-omap2-timer 41 - ti,sysc-omap4-timer 42 - ti,sysc-omap3430-sr 43 - ti,sysc-omap3630-sr 44 - ti,sysc-omap4-sr 45 - ti,sysc-omap3-sham 46 - ti,sysc-omap-aes 47 - ti,sysc-mcasp 48 - ti,sysc-dra7-mcasp 49 - ti,sysc-usb-host-fs 50 - ti,sysc-dra7-mcan 51 - ti,sysc-pruss 52 - const: ti,sysc 53 - items: 54 - const: ti,sysc 55 56 reg: 57 description: 58 Interconnect target module control registers consisting of 59 REVISION, SYSCONFIG and SYSSTATUS registers as defined in the 60 Technical Reference Manual for the SoC. 61 minItems: 1 62 maxItems: 3 63 64 reg-names: 65 description: 66 Interconnect target module control register names consisting 67 of "rev", "sysc" and "syss". 68 oneOf: 69 - minItems: 1 70 items: 71 - const: rev 72 - const: sysc 73 - const: syss 74 - items: 75 - const: rev 76 - const: syss 77 - enum: [ sysc, syss ] 78 79 power-domains: 80 description: Target module power domain if available. 81 maxItems: 1 82 83 clocks: 84 description: 85 Target module clocks consisting of one functional clock, one 86 interface clock, and up to 8 module specific optional clocks. 87 Some modules may have only the functional clock, and some have 88 no configurable clocks. 89 minItems: 1 90 maxItems: 4 91 92 clock-names: 93 description: 94 Target module clock names like "fck", "ick", "optck1", "optck2" 95 if the clocks are configurable. 96 oneOf: 97 - enum: [ ick, fck, sys_clk ] 98 - items: 99 - const: fck 100 - enum: [ ick, dbclk, osc, sys_clk, dss_clk, ahclkx ] 101 - items: 102 - const: fck 103 - const: phy-clk 104 - const: phy-clk-div 105 - items: 106 - const: fck 107 - const: hdmi_clk 108 - const: sys_clk 109 - const: tv_clk 110 - items: 111 - const: fck 112 - const: ahclkx 113 - const: ahclkr 114 115 resets: 116 description: 117 Target module reset bit in the RSTCTRL register if wired for the module. 118 Note that the other reset bits should be mapped for the child device 119 driver to use. 120 maxItems: 1 121 122 reset-names: 123 description: 124 Target module reset names in the RSTCTRL register, typically named 125 "rstctrl" if only one reset bit is wired for the module. 126 items: 127 - const: rstctrl 128 129 '#address-cells': 130 enum: [ 1, 2 ] 131 132 '#size-cells': 133 enum: [ 1, 2 ] 134 135 ranges: true 136 137 dma-ranges: true 138 139 ti,sysc-mask: 140 description: Mask of supported register bits for the SYSCONFIG register 141 $ref: /schemas/types.yaml#/definitions/uint32 142 143 ti,sysc-midle: 144 description: List of hardware supported idle modes 145 $ref: /schemas/types.yaml#/definitions/uint32-array 146 147 ti,sysc-sidle: 148 description: List of hardware supported idle modes 149 $ref: /schemas/types.yaml#/definitions/uint32-array 150 151 ti,syss-mask: 152 description: Mask of supported register bits for the SYSSTATUS register 153 $ref: /schemas/types.yaml#/definitions/uint32 154 155 ti,sysc-delay-us: 156 description: Delay needed after OCP softreset before accessing SYCONFIG 157 default: 0 158 minimum: 0 159 maximum: 2 160 161 ti,no-reset-on-init: 162 description: Interconnect target module shall not be reset at init 163 type: boolean 164 165 ti,no-idle-on-init: 166 description: Interconnect target module shall not be idled at init 167 type: boolean 168 169 ti,no-idle: 170 description: Interconnect target module shall not be idled 171 type: boolean 172 173 ti,hwmods: 174 description: Interconnect module name to use with legacy hwmod data 175 $ref: /schemas/types.yaml#/definitions/string 176 deprecated: true 177 178required: 179 - compatible 180 - '#address-cells' 181 - '#size-cells' 182 - ranges 183 184additionalProperties: 185 type: object 186 187examples: 188 - | 189 #include <dt-bindings/bus/ti-sysc.h> 190 #include <dt-bindings/clock/omap4.h> 191 192 target-module@2b000 { 193 compatible = "ti,sysc-omap2", "ti,sysc"; 194 ti,hwmods = "usb_otg_hs"; 195 reg = <0x2b400 0x4>, 196 <0x2b404 0x4>, 197 <0x2b408 0x4>; 198 reg-names = "rev", "sysc", "syss"; 199 clocks = <&l3_init_clkctrl OMAP4_USB_OTG_HS_CLKCTRL 0>; 200 clock-names = "fck"; 201 ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP | 202 SYSC_OMAP2_SOFTRESET | 203 SYSC_OMAP2_AUTOIDLE)>; 204 ti,sysc-midle = <SYSC_IDLE_FORCE>, 205 <SYSC_IDLE_NO>, 206 <SYSC_IDLE_SMART>; 207 ti,sysc-sidle = <SYSC_IDLE_FORCE>, 208 <SYSC_IDLE_NO>, 209 <SYSC_IDLE_SMART>, 210 <SYSC_IDLE_SMART_WKUP>; 211 ti,syss-mask = <1>; 212 #address-cells = <1>; 213 #size-cells = <1>; 214 ranges = <0 0x2b000 0x1000>; 215 }; 216