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Message-ID: <20250710180825.2971248-1-robh@kernel.org>
Date: Thu, 10 Jul 2025 13:08:23 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Jonathan Chocron <jonnyc@...zon.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kwilczynski@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Jingoo Han <jingoohan1@...il.com>,
Gustavo Pimentel <gustavo.pimentel@...opsys.com>
Cc: linux-pci@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: PCI: Convert amazon,al-alpine-v[23]-pcie to DT schema
Convert the Amazon Alpine PCIe binding to DT schema format. It's a
straight forward conversion.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../pci/amazon,al-alpine-v3-pcie.yaml | 71 +++++++++++++++++++
.../devicetree/bindings/pci/pcie-al.txt | 46 ------------
.../devicetree/bindings/pci/snps,dw-pcie.yaml | 2 +-
MAINTAINERS | 2 +-
4 files changed, 73 insertions(+), 48 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pci/amazon,al-alpine-v3-pcie.yaml
delete mode 100644 Documentation/devicetree/bindings/pci/pcie-al.txt
diff --git a/Documentation/devicetree/bindings/pci/amazon,al-alpine-v3-pcie.yaml b/Documentation/devicetree/bindings/pci/amazon,al-alpine-v3-pcie.yaml
new file mode 100644
index 000000000000..45244cad5f30
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/amazon,al-alpine-v3-pcie.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/amazon,al-alpine-v3-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amazon Annapurna Labs Alpine v3 PCIe Host Bridge
+
+maintainers:
+ - Jonathan Chocron <jonnyc@...zon.com>
+
+description:
+ Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys
+ DesignWare PCI controller.
+
+allOf:
+ - $ref: snps,dw-pcie.yaml#
+
+properties:
+ compatible:
+ enum:
+ - amazon,al-alpine-v2-pcie
+ - amazon,al-alpine-v3-pcie
+
+ reg:
+ items:
+ - description: PCIe ECAM space
+ - description: AL proprietary registers
+ - description: Designware PCIe registers
+
+ reg-names:
+ items:
+ - const: config
+ - const: controller
+ - const: dbi
+
+ interrupts:
+ maxItems: 1
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - reg-names
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pcie@...00000 {
+ compatible = "amazon,al-alpine-v3-pcie";
+ reg = <0x0 0xfb600000 0x0 0x00100000
+ 0x0 0xfd800000 0x0 0x00010000
+ 0x0 0xfd810000 0x0 0x00001000>;
+ reg-names = "config", "controller", "dbi";
+ bus-range = <0 255>;
+ device_type = "pci";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map-mask = <0x00 0 0 7>;
+ interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */
+ ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pci/pcie-al.txt b/Documentation/devicetree/bindings/pci/pcie-al.txt
deleted file mode 100644
index 2ad1fe466eab..000000000000
--- a/Documentation/devicetree/bindings/pci/pcie-al.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-* Amazon Annapurna Labs PCIe host bridge
-
-Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys DesignWare
-PCI core. It inherits common properties defined in
-Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.
-
-Properties of the host controller node that differ from it are:
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: Value should contain
- - "amazon,al-alpine-v2-pcie" for alpine_v2
- - "amazon,al-alpine-v3-pcie" for alpine_v3
-
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: Register ranges as listed in the reg-names property
-
-- reg-names:
- Usage: required
- Value type: <stringlist>
- Definition: Must include the following entries
- - "config" PCIe ECAM space
- - "controller" AL proprietary registers
- - "dbi" Designware PCIe registers
-
-Example:
-
- pcie-external0: pcie@...00000 {
- compatible = "amazon,al-alpine-v3-pcie";
- reg = <0x0 0xfb600000 0x0 0x00100000
- 0x0 0xfd800000 0x0 0x00010000
- 0x0 0xfd810000 0x0 0x00001000>;
- reg-names = "config", "controller", "dbi";
- bus-range = <0 255>;
- device_type = "pci";
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-map-mask = <0x00 0 0 7>;
- interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */
- ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>;
- };
diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
index 69e82f438f58..b3216141881c 100644
--- a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
@@ -108,7 +108,7 @@ properties:
- description: See native 'dbi' CSR region for details.
enum: [ ctrl ]
- description: See native 'elbi/app' CSR region for details.
- enum: [ apb, mgmt, link, ulreg, appl ]
+ enum: [ apb, mgmt, link, ulreg, appl, controller ]
- description: See native 'atu' CSR region for details.
enum: [ atu_dma ]
- description: Syscon-related CSR regions.
diff --git a/MAINTAINERS b/MAINTAINERS
index a92290fffa16..17085b8a393f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19232,7 +19232,7 @@ PCIE DRIVER FOR AMAZON ANNAPURNA LABS
M: Jonathan Chocron <jonnyc@...zon.com>
L: linux-pci@...r.kernel.org
S: Maintained
-F: Documentation/devicetree/bindings/pci/pcie-al.txt
+F: Documentation/devicetree/bindings/pci/amazon,al-alpine-v3-pcie.yaml
F: drivers/pci/controller/dwc/pcie-al.c
PCIE DRIVER FOR AMLOGIC MESON
--
2.47.2
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