bindings: pcie: add pci-host-ecam-generic bindings

Add bindings for a generic PCIe Controller in ECAM mode. ECAM stands for PCI Express Enhanced Configuration Access Mechanism where the PCIe config space is flat memory-mapped. An optional msi-parent phandle is added to link to an optional MSI/MSI-X Interrupt Message Translation HW component. Signed-off-by: Neil Armstrong <[email protected]>
albayenes · Nov 25, 2021 · 3f68124 · 3f68124
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commit 3f68124
Showing 1 changed file with 23 additions and 0 deletions.
diff --git a/dts/bindings/pcie/host/pci-host-ecam-generic.yaml b/dts/bindings/pcie/host/pci-host-ecam-generic.yaml
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+# Copyright (c) 2020 BayLibre, SAS
+# SPDX-License-Identifier: Apache-2.0
+
+description: PCIe Controller in ECAM mode
+
+compatible: "pci-host-ecam-generic"
+
+include: pcie-controller.yaml
+
+properties:
+    reg:
+      required: true
+
+    msi-parent:
+      type: phandle
+
+    ranges:
+      type: array
+      required: true
+      description: |
+        As described in IEEE Std 1275-1994, but must provide at least a
+        definition of non-prefetchable memory. One or both of prefetchable Memory
+        and IO Space may also be provided.