1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ 3%YAML 1.2 4--- 5$id: "http://devicetree.org/schemas/mmc/sdhci-am654.yaml#" 6$schema: "http://devicetree.org/meta-schemas/core.yaml#" 7 8title: TI AM654 MMC Controller 9 10maintainers: 11 - Ulf Hansson <ulf.hansson@linaro.org> 12 13allOf: 14 - $ref: mmc-controller.yaml# 15 16properties: 17 compatible: 18 oneOf: 19 - const: ti,am654-sdhci-5.1 20 - const: ti,j721e-sdhci-8bit 21 - const: ti,j721e-sdhci-4bit 22 - const: ti,j721e-sdhci-4bit 23 - const: ti,am64-sdhci-8bit 24 - const: ti,am64-sdhci-4bit 25 - items: 26 - const: ti,j7200-sdhci-8bit 27 - const: ti,j721e-sdhci-8bit 28 - items: 29 - const: ti,j7200-sdhci-4bit 30 - const: ti,j721e-sdhci-4bit 31 32 reg: 33 maxItems: 2 34 35 interrupts: 36 maxItems: 1 37 38 power-domains: 39 maxItems: 1 40 41 clocks: 42 minItems: 1 43 maxItems: 2 44 description: Handles to input clocks 45 46 clock-names: 47 minItems: 1 48 maxItems: 2 49 items: 50 - const: clk_ahb 51 - const: clk_xin 52 53 # PHY output tap delays: 54 # Used to delay the data valid window and align it to the sampling clock. 55 # Binding needs to be provided for each supported speed mode otherwise the 56 # corresponding mode will be disabled. 57 58 ti,otap-del-sel-legacy: 59 description: Output tap delay for SD/MMC legacy timing 60 $ref: "/schemas/types.yaml#/definitions/uint32" 61 minimum: 0 62 maximum: 0xf 63 64 ti,otap-del-sel-mmc-hs: 65 description: Output tap delay for MMC high speed timing 66 $ref: "/schemas/types.yaml#/definitions/uint32" 67 minimum: 0 68 maximum: 0xf 69 70 ti,otap-del-sel-sd-hs: 71 description: Output tap delay for SD high speed timing 72 $ref: "/schemas/types.yaml#/definitions/uint32" 73 minimum: 0 74 maximum: 0xf 75 76 ti,otap-del-sel-sdr12: 77 description: Output tap delay for SD UHS SDR12 timing 78 $ref: "/schemas/types.yaml#/definitions/uint32" 79 minimum: 0 80 maximum: 0xf 81 82 ti,otap-del-sel-sdr25: 83 description: Output tap delay for SD UHS SDR25 timing 84 $ref: "/schemas/types.yaml#/definitions/uint32" 85 minimum: 0 86 maximum: 0xf 87 88 ti,otap-del-sel-sdr50: 89 description: Output tap delay for SD UHS SDR50 timing 90 $ref: "/schemas/types.yaml#/definitions/uint32" 91 minimum: 0 92 maximum: 0xf 93 94 ti,otap-del-sel-sdr104: 95 description: Output tap delay for SD UHS SDR104 timing 96 $ref: "/schemas/types.yaml#/definitions/uint32" 97 minimum: 0 98 maximum: 0xf 99 100 ti,otap-del-sel-ddr50: 101 description: Output tap delay for SD UHS DDR50 timing 102 $ref: "/schemas/types.yaml#/definitions/uint32" 103 minimum: 0 104 maximum: 0xf 105 106 ti,otap-del-sel-ddr52: 107 description: Output tap delay for eMMC DDR52 timing 108 $ref: "/schemas/types.yaml#/definitions/uint32" 109 minimum: 0 110 maximum: 0xf 111 112 ti,otap-del-sel-hs200: 113 description: Output tap delay for eMMC HS200 timing 114 $ref: "/schemas/types.yaml#/definitions/uint32" 115 minimum: 0 116 maximum: 0xf 117 118 ti,otap-del-sel-hs400: 119 description: Output tap delay for eMMC HS400 timing 120 $ref: "/schemas/types.yaml#/definitions/uint32" 121 minimum: 0 122 maximum: 0xf 123 124 # PHY input tap delays: 125 # Used to delay the data valid window and align it to the sampling clock for 126 # modes that don't support tuning 127 128 ti,itap-del-sel-legacy: 129 description: Input tap delay for SD/MMC legacy timing 130 $ref: "/schemas/types.yaml#/definitions/uint32" 131 minimum: 0 132 maximum: 0x1f 133 134 ti,itap-del-sel-mmc-hs: 135 description: Input tap delay for MMC high speed timing 136 $ref: "/schemas/types.yaml#/definitions/uint32" 137 minimum: 0 138 maximum: 0x1f 139 140 ti,itap-del-sel-sd-hs: 141 description: Input tap delay for SD high speed timing 142 $ref: "/schemas/types.yaml#/definitions/uint32" 143 minimum: 0 144 maximum: 0x1f 145 146 ti,itap-del-sel-sdr12: 147 description: Input tap delay for SD UHS SDR12 timing 148 $ref: "/schemas/types.yaml#/definitions/uint32" 149 minimum: 0 150 maximum: 0x1f 151 152 ti,itap-del-sel-sdr25: 153 description: Input tap delay for SD UHS SDR25 timing 154 $ref: "/schemas/types.yaml#/definitions/uint32" 155 minimum: 0 156 maximum: 0x1f 157 158 ti,itap-del-sel-ddr52: 159 description: Input tap delay for MMC DDR52 timing 160 $ref: "/schemas/types.yaml#/definitions/uint32" 161 minimum: 0 162 maximum: 0x1f 163 164 ti,trm-icp: 165 description: DLL trim select 166 $ref: "/schemas/types.yaml#/definitions/uint32" 167 minimum: 0 168 maximum: 0xf 169 170 ti,driver-strength-ohm: 171 description: DLL drive strength in ohms 172 $ref: "/schemas/types.yaml#/definitions/uint32" 173 enum: 174 - 33 175 - 40 176 - 50 177 - 66 178 - 100 179 180 ti,strobe-sel: 181 description: strobe select delay for HS400 speed mode. 182 $ref: "/schemas/types.yaml#/definitions/uint32" 183 184 ti,clkbuf-sel: 185 description: Clock Delay Buffer Select 186 $ref: "/schemas/types.yaml#/definitions/uint32" 187 188required: 189 - compatible 190 - reg 191 - interrupts 192 - clocks 193 - clock-names 194 - ti,otap-del-sel-legacy 195 196unevaluatedProperties: false 197 198examples: 199 - | 200 #include <dt-bindings/interrupt-controller/irq.h> 201 #include <dt-bindings/interrupt-controller/arm-gic.h> 202 203 bus { 204 #address-cells = <2>; 205 #size-cells = <2>; 206 207 mmc0: mmc@4f80000 { 208 compatible = "ti,am654-sdhci-5.1"; 209 reg = <0x0 0x4f80000 0x0 0x260>, <0x0 0x4f90000 0x0 0x134>; 210 power-domains = <&k3_pds 47>; 211 clocks = <&k3_clks 47 0>, <&k3_clks 47 1>; 212 clock-names = "clk_ahb", "clk_xin"; 213 interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>; 214 sdhci-caps-mask = <0x80000007 0x0>; 215 mmc-ddr-1_8v; 216 ti,otap-del-sel-legacy = <0x0>; 217 ti,otap-del-sel-mmc-hs = <0x0>; 218 ti,otap-del-sel-ddr52 = <0x5>; 219 ti,otap-del-sel-hs200 = <0x5>; 220 ti,otap-del-sel-hs400 = <0x0>; 221 ti,itap-del-sel-legacy = <0x10>; 222 ti,itap-del-sel-mmc-hs = <0xa>; 223 ti,itap-del-sel-ddr52 = <0x3>; 224 ti,trm-icp = <0x8>; 225 }; 226 }; 227