125 lines
3.8 KiB
YAML
125 lines
3.8 KiB
YAML
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/iommu/renesas,ipmmu-vmsa.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Renesas VMSA-Compatible IOMMU
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
|
||
|
|
|
||
|
|
description:
|
||
|
|
The IPMMU is an IOMMU implementation compatible with the ARM VMSA page tables.
|
||
|
|
It provides address translation for bus masters outside of the CPU, each
|
||
|
|
connected to the IPMMU through a port called micro-TLB.
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
oneOf:
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- renesas,ipmmu-r8a73a4 # R-Mobile APE6
|
||
|
|
- renesas,ipmmu-r8a7742 # RZ/G1H
|
||
|
|
- renesas,ipmmu-r8a7743 # RZ/G1M
|
||
|
|
- renesas,ipmmu-r8a7744 # RZ/G1N
|
||
|
|
- renesas,ipmmu-r8a7745 # RZ/G1E
|
||
|
|
- renesas,ipmmu-r8a7790 # R-Car H2
|
||
|
|
- renesas,ipmmu-r8a7791 # R-Car M2-W
|
||
|
|
- renesas,ipmmu-r8a7793 # R-Car M2-N
|
||
|
|
- renesas,ipmmu-r8a7794 # R-Car E2
|
||
|
|
- const: renesas,ipmmu-vmsa # R-Mobile APE6 or R-Car Gen2 or RZ/G1
|
||
|
|
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- renesas,ipmmu-r8a774a1 # RZ/G2M
|
||
|
|
- renesas,ipmmu-r8a774b1 # RZ/G2N
|
||
|
|
- renesas,ipmmu-r8a774c0 # RZ/G2E
|
||
|
|
- renesas,ipmmu-r8a774e1 # RZ/G2H
|
||
|
|
- renesas,ipmmu-r8a7795 # R-Car H3
|
||
|
|
- renesas,ipmmu-r8a7796 # R-Car M3-W
|
||
|
|
- renesas,ipmmu-r8a77961 # R-Car M3-W+
|
||
|
|
- renesas,ipmmu-r8a77965 # R-Car M3-N
|
||
|
|
- renesas,ipmmu-r8a77970 # R-Car V3M
|
||
|
|
- renesas,ipmmu-r8a77980 # R-Car V3H
|
||
|
|
- renesas,ipmmu-r8a77990 # R-Car E3
|
||
|
|
- renesas,ipmmu-r8a77995 # R-Car D3
|
||
|
|
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- renesas,ipmmu-r8a779a0 # R-Car V3U
|
||
|
|
- renesas,ipmmu-r8a779f0 # R-Car S4-8
|
||
|
|
- renesas,ipmmu-r8a779g0 # R-Car V4H
|
||
|
|
- const: renesas,rcar-gen4-ipmmu-vmsa # R-Car Gen4
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
interrupts:
|
||
|
|
minItems: 1
|
||
|
|
description:
|
||
|
|
Specifiers for the MMU fault interrupts. Not required for cache IPMMUs.
|
||
|
|
items:
|
||
|
|
- description: non-secure mode
|
||
|
|
- description: secure mode if supported
|
||
|
|
|
||
|
|
'#iommu-cells':
|
||
|
|
const: 1
|
||
|
|
description:
|
||
|
|
The number of the micro-TLB that the device is connected to.
|
||
|
|
|
||
|
|
power-domains:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
renesas,ipmmu-main:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/phandle-array
|
||
|
|
items:
|
||
|
|
- items:
|
||
|
|
- description: phandle to main IPMMU
|
||
|
|
- description: the interrupt bit number associated with the particular
|
||
|
|
cache IPMMU device. The interrupt bit number needs to match the main
|
||
|
|
IPMMU IMSSTR register. Only used by cache IPMMU instances.
|
||
|
|
description:
|
||
|
|
Reference to the main IPMMU phandle plus 1 cell. The cell is
|
||
|
|
the interrupt bit number associated with the particular cache IPMMU
|
||
|
|
device. The interrupt bit number needs to match the main IPMMU IMSSTR
|
||
|
|
register. Only used by cache IPMMU instances.
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- '#iommu-cells'
|
||
|
|
|
||
|
|
oneOf:
|
||
|
|
- required:
|
||
|
|
- interrupts
|
||
|
|
- required:
|
||
|
|
- renesas,ipmmu-main
|
||
|
|
|
||
|
|
additionalProperties: false
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- if:
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
not:
|
||
|
|
contains:
|
||
|
|
const: renesas,ipmmu-vmsa
|
||
|
|
then:
|
||
|
|
required:
|
||
|
|
- power-domains
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/clock/r8a7791-cpg-mssr.h>
|
||
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
||
|
|
#include <dt-bindings/power/r8a7791-sysc.h>
|
||
|
|
|
||
|
|
ipmmu_mx: iommu@fe951000 {
|
||
|
|
compatible = "renesas,ipmmu-r8a7791", "renesas,ipmmu-vmsa";
|
||
|
|
reg = <0xfe951000 0x1000>;
|
||
|
|
interrupts = <GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>,
|
||
|
|
<GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
#iommu-cells = <1>;
|
||
|
|
};
|