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dt-bindings: soc: renesas: Document MFIS IP core
Document the Renesas Multifunctional Interface (MFIS) as found on the Renesas R-Car X5H (r8a78000) SoC. MFIS includes features like Mailbox/HW Spinlock/Product Register/Error Injection/Error Detection and the likes. Family-compatible values are not introduced here because MFIS is usually very different per SoC. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patch.msgid.link/20260402112709.13002-2-wsa+renesas@sang-engineering.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Wolfram Sang
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Geert Uytterhoeven
Geert Uytterhoeven
parent
254f49634e
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/soc/renesas/renesas,r8a78000-mfis.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Renesas MFIS (Multifunctional Interface) controller
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maintainers:
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- Wolfram Sang <wsa+renesas@sang-engineering.com>
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description:
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The Renesas Multifunctional Interface (MFIS) provides various functionality
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like mailboxes, hardware spinlocks, product identification, error injection,
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error detection and such. Parts of it can be used for communication between
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different CPU cores. Those cores can be in various domains like AP, RT, or
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SCP. Often multiple domain-specific MFIS instances exist in one SoC.
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properties:
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compatible:
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enum:
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- renesas,r8a78000-mfis # R-Car X5H (AP<->AP, with PRR)
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- renesas,r8a78000-mfis-scp # R-Car X5H (AP<->SCP, without PRR)
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reg:
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maxItems: 2
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reg-names:
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items:
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- const: common
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- const: mboxes
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interrupts:
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minItems: 32
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maxItems: 128
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description:
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The interrupts raised by the remote doorbells.
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interrupt-names:
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minItems: 32
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maxItems: 128
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description:
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An interrupt name is constructed with the prefix 'ch'. Then, the
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channel number as specified in the documentation of the SoC. Finally,
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the letter 'i' if the interrupt is raised by the IICR register. Or 'e'
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if it is raised by the EICR register.
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"#hwlock-cells":
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const: 1
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"#mbox-cells":
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const: 2
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description:
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The first cell is the channel number as specified in the documentation
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of the SoC. The second cell may specify flags as described in the file
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<dt-bindings/soc/renesas,r8a78000-mfis.h>.
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: renesas,r8a78000-mfis
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then:
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properties:
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interrupts:
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minItems: 128
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interrupt-names:
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minItems: 128
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items:
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pattern: "^ch[0-9]+[ie]$"
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- if:
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properties:
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compatible:
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contains:
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const: renesas,r8a78000-mfis-scp
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then:
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properties:
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interrupts:
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maxItems: 32
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interrupt-names:
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maxItems: 32
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items:
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pattern: "^ch[0-9]+i$"
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- interrupt-names
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- "#hwlock-cells"
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- "#mbox-cells"
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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system-controller@189e0000 {
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compatible = "renesas,r8a78000-mfis";
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reg = <0x189e0000 0x1000>, <0x18800000 0x40000>;
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reg-names = "common", "mboxes";
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interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 135 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 150 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 151 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 175 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 179 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 181 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 182 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 195 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 198 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 201 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 202 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 207 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 209 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 210 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 214 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 216 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 217 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 223 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 227 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 228 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "ch0i", "ch0e", "ch1i", "ch1e", "ch2i", "ch2e", "ch3i", "ch3e",
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"ch4i", "ch4e", "ch5i", "ch5e", "ch6i", "ch6e", "ch7i", "ch7e",
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"ch8i", "ch8e", "ch9i", "ch9e", "ch10i", "ch10e", "ch11i", "ch11e",
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"ch12i", "ch12e", "ch13i", "ch13e", "ch14i", "ch14e", "ch15i", "ch15e",
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"ch16i", "ch16e", "ch17i", "ch17e", "ch18i", "ch18e", "ch19i", "ch19e",
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"ch20i", "ch20e", "ch21i", "ch21e", "ch22i", "ch22e", "ch23i", "ch23e",
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"ch24i", "ch24e", "ch25i", "ch25e", "ch26i", "ch26e", "ch27i", "ch27e",
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"ch28i", "ch28e", "ch29i", "ch29e", "ch30i", "ch30e", "ch31i", "ch31e",
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"ch32i", "ch32e", "ch33i", "ch33e", "ch34i", "ch34e", "ch35i", "ch35e",
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"ch36i", "ch36e", "ch37i", "ch37e", "ch38i", "ch38e", "ch39i", "ch39e",
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"ch40i", "ch40e", "ch41i", "ch41e", "ch42i", "ch42e", "ch43i", "ch43e",
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"ch44i", "ch44e", "ch45i", "ch45e", "ch46i", "ch46e", "ch47i", "ch47e",
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"ch48i", "ch48e", "ch49i", "ch49e", "ch50i", "ch50e", "ch51i", "ch51e",
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"ch52i", "ch52e", "ch53i", "ch53e", "ch54i", "ch54e", "ch55i", "ch55e",
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"ch56i", "ch56e", "ch57i", "ch57e", "ch58i", "ch58e", "ch59i", "ch59e",
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"ch60i", "ch60e", "ch61i", "ch61e", "ch62i", "ch62e", "ch63i", "ch63e";
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#hwlock-cells = <1>;
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#mbox-cells = <2>;
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};
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28
include/dt-bindings/soc/renesas,r8a78000-mfis.h
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28
include/dt-bindings/soc/renesas,r8a78000-mfis.h
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@@ -0,0 +1,28 @@
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/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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#ifndef _DT_BINDINGS_SOC_RENESAS_R8A78000_MFIS_H
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#define _DT_BINDINGS_SOC_RENESAS_R8A78000_MFIS_H
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/*
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* Constants for the second mbox-cell of the Renesas MFIS IP core. To be treated
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* as bit flags which can be ORed.
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*/
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/*
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* MFIS HW design before r8a78001 requires a channel to be marked as either
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* TX or RX.
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*/
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#define MFIS_CHANNEL_TX (0 << 0)
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#define MFIS_CHANNEL_RX (1 << 0)
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/*
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* MFIS variants before r8a78001 work with pairs of IICR and EICR registers.
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* Usually, it is specified in the datasheets which of the two a specific core
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* should use. Then, it does not need extra description in DT. For plain MFIS
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* of r8a78000, this is selectable, though. According to the system design and
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* the firmware in use, these channels need to be marked. This is not needed
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* with other versions of the MFIS, not even with MFIS-SCP of r8a78000.
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*/
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#define MFIS_CHANNEL_IICR (0 << 1)
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#define MFIS_CHANNEL_EICR (1 << 1)
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#endif /* _DT_BINDINGS_SOC_RENESAS_R8A78000_MFIS_H */
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