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Message-ID: <20250502013447.3416581-1-robh@kernel.org>
Date: Thu, 1 May 2025 20:34:46 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kw@...ux.com>,
Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>
Cc: linux-pci@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: PCI: Convert v3,v360epc-pci to DT schema
Convert the v3,v360epc-pci binding to DT schema format.
Add "clocks" which was not documented and is required. Drop "syscon"
which was documented, but is not used.
Drop the "v3,v360epc-pci" compatible by itself as this device is only
used on the Arm Integrator/AP and not likely going to be used anywhere
else at this point.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../bindings/pci/v3,v360epc-pci.yaml | 100 ++++++++++++++++++
.../bindings/pci/v3-v360epc-pci.txt | 76 -------------
2 files changed, 100 insertions(+), 76 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pci/v3,v360epc-pci.yaml
delete mode 100644 Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt
diff --git a/Documentation/devicetree/bindings/pci/v3,v360epc-pci.yaml b/Documentation/devicetree/bindings/pci/v3,v360epc-pci.yaml
new file mode 100644
index 000000000000..38cac88f17bf
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/v3,v360epc-pci.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/v3,v360epc-pci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: V3 Semiconductor V360 EPC PCI bridge
+
+maintainers:
+ - Linus Walleij <linus.walleij@...aro.org>
+
+description:
+ This bridge is found in the ARM Integrator/AP (Application Platform)
+
+allOf:
+ - $ref: /schemas/pci/pci-host-bridge.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,integrator-ap-pci
+ - const: v3,v360epc-pci
+
+ reg:
+ items:
+ - description: V3 host bridge controller
+ - description: Configuration space
+
+ clocks:
+ maxItems: 1
+
+ dma-ranges:
+ maxItems: 2
+ description:
+ The inbound ranges must be aligned to a 1MB boundary, and may be 1MB, 2MB,
+ 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, 256MB, 512MB, 1GB or 2GB in size. The
+ memory should be marked as pre-fetchable.
+
+ interrupts:
+ description: Bus Error IRQ
+ maxItems: 1
+
+ ranges:
+ description:
+ The non-prefetchable and prefetchable memory windows must each be exactly
+ 256MB (0x10000000) in size. The prefetchable memory window must be
+ immediately adjacent to the non-prefetchable memory window.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - dma-ranges
+ - "#interrupt-cells"
+ - interrupt-map
+ - interrupt-map-mask
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ pci@...00000 {
+ compatible = "arm,integrator-ap-pci", "v3,v360epc-pci";
+ #interrupt-cells = <1>;
+ #size-cells = <2>;
+ #address-cells = <3>;
+ reg = <0x62000000 0x10000>, <0x61000000 0x01000000>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ interrupts = <17>; /* Bus error IRQ */
+ clocks = <&pciclk>;
+ ranges = <0x01000000 0 0x00000000 0x60000000 0 0x01000000>, /* 16 MiB @ LB 60000000 */
+ <0x02000000 0 0x40000000 0x40000000 0 0x10000000>, /* 256 MiB @ LB 40000000 1:1 */
+ <0x42000000 0 0x50000000 0x50000000 0 0x10000000>; /* 256 MiB @ LB 50000000 1:1 */
+ dma-ranges = <0x02000000 0 0x20000000 0x20000000 0 0x20000000>, /* EBI: 512 MB @ LB 20000000 1:1 */
+ <0x02000000 0 0x80000000 0x80000000 0 0x40000000>; /* CM alias: 1GB @ LB 80000000 */
+ interrupt-map-mask = <0xf800 0 0 0x7>;
+ interrupt-map =
+ /* IDSEL 9 */
+ <0x4800 0 0 1 &pic 13>, /* INT A on slot 9 is irq 13 */
+ <0x4800 0 0 2 &pic 14>, /* INT B on slot 9 is irq 14 */
+ <0x4800 0 0 3 &pic 15>, /* INT C on slot 9 is irq 15 */
+ <0x4800 0 0 4 &pic 16>, /* INT D on slot 9 is irq 16 */
+ /* IDSEL 10 */
+ <0x5000 0 0 1 &pic 14>, /* INT A on slot 10 is irq 14 */
+ <0x5000 0 0 2 &pic 15>, /* INT B on slot 10 is irq 15 */
+ <0x5000 0 0 3 &pic 16>, /* INT C on slot 10 is irq 16 */
+ <0x5000 0 0 4 &pic 13>, /* INT D on slot 10 is irq 13 */
+ /* IDSEL 11 */
+ <0x5800 0 0 1 &pic 15>, /* INT A on slot 11 is irq 15 */
+ <0x5800 0 0 2 &pic 16>, /* INT B on slot 11 is irq 16 */
+ <0x5800 0 0 3 &pic 13>, /* INT C on slot 11 is irq 13 */
+ <0x5800 0 0 4 &pic 14>, /* INT D on slot 11 is irq 14 */
+ /* IDSEL 12 */
+ <0x6000 0 0 1 &pic 16>, /* INT A on slot 12 is irq 16 */
+ <0x6000 0 0 2 &pic 13>, /* INT B on slot 12 is irq 13 */
+ <0x6000 0 0 3 &pic 14>, /* INT C on slot 12 is irq 14 */
+ <0x6000 0 0 4 &pic 15>; /* INT D on slot 12 is irq 15 */
+ };
+...
diff --git a/Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt b/Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt
deleted file mode 100644
index 11063293f761..000000000000
--- a/Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt
+++ /dev/null
@@ -1,76 +0,0 @@
-V3 Semiconductor V360 EPC PCI bridge
-
-This bridge is found in the ARM Integrator/AP (Application Platform)
-
-Required properties:
-- compatible: should be one of:
- "v3,v360epc-pci"
- "arm,integrator-ap-pci", "v3,v360epc-pci"
-- reg: should contain two register areas:
- first the base address of the V3 host bridge controller, 64KB
- second the configuration area register space, 16MB
-- interrupts: should contain a reference to the V3 error interrupt
- as routed on the system.
-- bus-range: see pci.txt
-- ranges: this follows the standard PCI bindings in the IEEE Std
- 1275-1994 (see pci.txt) with the following restriction:
- - The non-prefetchable and prefetchable memory windows must
- each be exactly 256MB (0x10000000) in size.
- - The prefetchable memory window must be immediately adjacent
- to the non-prefetcable memory window
-- dma-ranges: three ranges for the inbound memory region. The ranges must
- be aligned to a 1MB boundary, and may be 1MB, 2MB, 4MB, 8MB, 16MB, 32MB,
- 64MB, 128MB, 256MB, 512MB, 1GB or 2GB in size. The memory should be marked
- as pre-fetchable. Two ranges are supported by the hardware.
-
-Integrator-specific required properties:
-- syscon: should contain a link to the syscon device node, since
- on the Integrator, some registers in the syscon are required to
- operate the V3 host bridge.
-
-Example:
-
-pci: pciv3@...00000 {
- compatible = "arm,integrator-ap-pci", "v3,v360epc-pci";
- #interrupt-cells = <1>;
- #size-cells = <2>;
- #address-cells = <3>;
- reg = <0x62000000 0x10000>, <0x61000000 0x01000000>;
- interrupt-parent = <&pic>;
- interrupts = <17>; /* Bus error IRQ */
- clocks = <&pciclk>;
- bus-range = <0x00 0xff>;
- ranges = 0x01000000 0 0x00000000 /* I/O space @00000000 */
- 0x60000000 0 0x01000000 /* 16 MiB @ LB 60000000 */
- 0x02000000 0 0x40000000 /* non-prefectable memory @40000000 */
- 0x40000000 0 0x10000000 /* 256 MiB @ LB 40000000 1:1 */
- 0x42000000 0 0x50000000 /* prefetchable memory @50000000 */
- 0x50000000 0 0x10000000>; /* 256 MiB @ LB 50000000 1:1 */
- dma-ranges = <0x02000000 0 0x20000000 /* EBI memory space */
- 0x20000000 0 0x20000000 /* 512 MB @ LB 20000000 1:1 */
- 0x02000000 0 0x80000000 /* Core module alias memory */
- 0x80000000 0 0x40000000>; /* 1GB @ LB 80000000 */
- interrupt-map-mask = <0xf800 0 0 0x7>;
- interrupt-map = <
- /* IDSEL 9 */
- 0x4800 0 0 1 &pic 13 /* INT A on slot 9 is irq 13 */
- 0x4800 0 0 2 &pic 14 /* INT B on slot 9 is irq 14 */
- 0x4800 0 0 3 &pic 15 /* INT C on slot 9 is irq 15 */
- 0x4800 0 0 4 &pic 16 /* INT D on slot 9 is irq 16 */
- /* IDSEL 10 */
- 0x5000 0 0 1 &pic 14 /* INT A on slot 10 is irq 14 */
- 0x5000 0 0 2 &pic 15 /* INT B on slot 10 is irq 15 */
- 0x5000 0 0 3 &pic 16 /* INT C on slot 10 is irq 16 */
- 0x5000 0 0 4 &pic 13 /* INT D on slot 10 is irq 13 */
- /* IDSEL 11 */
- 0x5800 0 0 1 &pic 15 /* INT A on slot 11 is irq 15 */
- 0x5800 0 0 2 &pic 16 /* INT B on slot 11 is irq 16 */
- 0x5800 0 0 3 &pic 13 /* INT C on slot 11 is irq 13 */
- 0x5800 0 0 4 &pic 14 /* INT D on slot 11 is irq 14 */
- /* IDSEL 12 */
- 0x6000 0 0 1 &pic 16 /* INT A on slot 12 is irq 16 */
- 0x6000 0 0 2 &pic 13 /* INT B on slot 12 is irq 13 */
- 0x6000 0 0 3 &pic 14 /* INT C on slot 12 is irq 14 */
- 0x6000 0 0 4 &pic 15 /* INT D on slot 12 is irq 15 */
- >;
-};
--
2.47.2
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