8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
66 lines
2.1 KiB
Diff
66 lines
2.1 KiB
Diff
From 4737dfd713700ad70bbccf94dc7801750049fc53 Mon Sep 17 00:00:00 2001
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From: Jonathan Bell <jonathan@raspberrypi.com>
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Date: Tue, 11 Feb 2025 13:49:48 +0000
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Subject: [PATCH] dt-bindings: pci: pcie-brcmstb: add BCM2712-specific
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properties
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There is configurable priority forwarding hardware in this variant of the
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Root Complex controller. Add optional properties to configure FIFO
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backpressure or Vendor-Defined Message priority forwarding.
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Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
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---
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.../bindings/pci/brcm,stb-pcie.yaml | 28 +++++++++++++++++++
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1 file changed, 28 insertions(+)
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--- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
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+++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
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@@ -84,6 +84,14 @@ properties:
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$ref: /schemas/types.yaml#/definitions/string
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enum: [ safe, no-l1ss, default ]
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+ brcm,fifo-qos-map:
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+ description: Array of u8 elements which assigns every per-TC FIFOs
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+ an AXI priority based on fullness quartile (backpressure signalling).
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+ Mutually exclusive with vdm-qos-map.
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+ $ref: /schemas/types.yaml#/definitions/uint8-array
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+ minItems: 4
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+ maxItems: 4
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+
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brcm,scb-sizes:
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description: u64 giving the 64bit PCIe memory
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viewport size of a memory controller. There may be up to
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@@ -97,6 +105,15 @@ properties:
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minItems: 1
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maxItems: 3
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+ brcm,vdm-qos-map:
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+ description: Array of u8 elements which assigns each per-TC FIFO
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+ a base AXI priority with automatic elevation depending on
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+ Vendor Messages from the EP - specifically, RP1.
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+ Mutually exclusive with fifo-qos-map.
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+ $ref: /schemas/types.yaml#/definitions/uint8-array
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+ minItems: 8
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+ maxItems: 8
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+
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resets:
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minItems: 1
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maxItems: 3
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@@ -187,6 +204,17 @@ allOf:
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- resets
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- reset-names
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+ - if:
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+ not:
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+ properties:
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+ compatible:
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+ contains:
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+ const: brcm,bcm2712-pcie
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+ then:
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+ properties:
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+ brcm,fifo-qos-map: false
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+ brcm,vdm-qos-map: false
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+
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unevaluatedProperties: false
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examples:
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