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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml b/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml new file mode 100644 index 000000000..cde1afa8d --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml @@ -0,0 +1,101 @@ +# 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 + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 2 + 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 + 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' + - power-domains + +oneOf: + - required: + - interrupts + - required: + - renesas,ipmmu-main + +additionalProperties: false + +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 = "renasas,ipmmu-r8a7791", "renasas,ipmmu-vmsa"; + reg = <0xfe951000 0x1000>; + interrupts = <GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>; + #iommu-cells = <1>; + }; |