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Message-ID: <20250710180741.2970148-1-robh@kernel.org>
Date: Thu, 10 Jul 2025 13:07:40 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Jesper Nilsson <jesper.nilsson@...s.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof WilczyĆski <kwilczynski@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-kernel@...s.com,
linux-pci@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: PCI: Convert axis,artpec6-pcie to DT schema
Convert the Axis ARTPEC-6/7 PCIe binding to DT schema format. It's a
straight forward conversion.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../bindings/pci/axis,artpec6-pcie.txt | 50 --------
.../bindings/pci/axis,artpec6-pcie.yaml | 118 ++++++++++++++++++
2 files changed, 118 insertions(+), 50 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
create mode 100644 Documentation/devicetree/bindings/pci/axis,artpec6-pcie.yaml
diff --git a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
deleted file mode 100644
index cc6dcdb676b9..000000000000
--- a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-* Axis ARTPEC-6 PCIe interface
-
-This PCIe host controller is based on the Synopsys DesignWare PCIe IP
-and thus inherits all the common properties defined in snps,dw-pcie.yaml.
-
-Required properties:
-- compatible: "axis,artpec6-pcie", "snps,dw-pcie" for ARTPEC-6 in RC mode;
- "axis,artpec6-pcie-ep", "snps,dw-pcie" for ARTPEC-6 in EP mode;
- "axis,artpec7-pcie", "snps,dw-pcie" for ARTPEC-7 in RC mode;
- "axis,artpec7-pcie-ep", "snps,dw-pcie" for ARTPEC-7 in EP mode;
-- reg: base addresses and lengths of the PCIe controller (DBI),
- the PHY controller, and configuration address space.
-- reg-names: Must include the following entries:
- - "dbi"
- - "phy"
- - "config"
-- interrupts: A list of interrupt outputs of the controller. Must contain an
- entry for each entry in the interrupt-names property.
-- interrupt-names: Must include the following entries:
- - "msi": The interrupt that is asserted when an MSI is received
-- axis,syscon-pcie: A phandle pointing to the ARTPEC-6 system controller,
- used to enable and control the Synopsys IP.
-
-Example:
-
- pcie@...50000 {
- compatible = "axis,artpec6-pcie", "snps,dw-pcie";
- reg = <0xf8050000 0x2000
- 0xf8040000 0x1000
- 0xc0000000 0x2000>;
- reg-names = "dbi", "phy", "config";
- #address-cells = <3>;
- #size-cells = <2>;
- device_type = "pci";
- /* downstream I/O */
- ranges = <0x81000000 0 0 0xc0002000 0 0x00010000
- /* non-prefetchable memory */
- 0x82000000 0 0xc0012000 0xc0012000 0 0x1ffee000>;
- num-lanes = <2>;
- bus-range = <0x00 0xff>;
- interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "msi";
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0x7>;
- interrupt-map = <0 0 0 1 &intc GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 2 &intc GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 3 &intc GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 4 &intc GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
- axis,syscon-pcie = <&syscon>;
- };
diff --git a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.yaml b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.yaml
new file mode 100644
index 000000000000..dcc5661aa004
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.yaml
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2025 Axis AB
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/axis,artpec6-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axis ARTPEC-6 PCIe host controller
+
+maintainers:
+ - Jesper Nilsson <jesper.nilsson@...s.com>
+
+description:
+ This PCIe host controller is based on the Synopsys DesignWare PCIe IP.
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - axis,artpec6-pcie
+ - axis,artpec6-pcie-ep
+ - axis,artpec7-pcie
+ - axis,artpec7-pcie-ep
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - axis,artpec6-pcie
+ - axis,artpec6-pcie-ep
+ - axis,artpec7-pcie
+ - axis,artpec7-pcie-ep
+ - const: snps,dw-pcie
+
+ reg:
+ minItems: 3
+ maxItems: 4
+
+ reg-names:
+ minItems: 3
+ maxItems: 4
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ items:
+ - const: msi
+
+ axis,syscon-pcie:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ System controller phandle used to enable and control the Synopsys IP.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+ - axis,syscon-pcie
+
+oneOf:
+ - $ref: snps,dw-pcie.yaml#
+ properties:
+ reg:
+ maxItems: 3
+
+ reg-names:
+ items:
+ - const: dbi
+ - const: phy
+ - const: config
+
+ - $ref: snps,dw-pcie-ep.yaml#
+ properties:
+ reg:
+ minItems: 4
+
+ reg-names:
+ items:
+ - const: dbi
+ - const: dbi2
+ - const: phy
+ - const: addr_space
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pcie@...50000 {
+ compatible = "axis,artpec6-pcie", "snps,dw-pcie";
+ device_type = "pci";
+ reg = <0xf8050000 0x2000
+ 0xf8040000 0x1000
+ 0xc0000000 0x2000>;
+ reg-names = "dbi", "phy", "config";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges = <0x81000000 0 0 0xc0002000 0 0x00010000>,
+ <0x82000000 0 0xc0012000 0xc0012000 0 0x1ffee000>;
+ num-lanes = <2>;
+ bus-range = <0x00 0xff>;
+ interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "msi";
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0x7>;
+ interrupt-map = <0 0 0 1 &intc GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 2 &intc GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 3 &intc GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 4 &intc GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
+ axis,syscon-pcie = <&syscon>;
+ };
--
2.47.2
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