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Message-ID: <20250702222643.2761617-1-robh@kernel.org>
Date: Wed, 2 Jul 2025 17:26:42 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Mark Brown <broonie@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Andrew Lunn <andrew@...n.ch>,
Gregory CLEMENT <gregory.clement@...tlin.com>
Cc: linux-spi@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] spi: dt-bindings: Convert marvell,orion-spi to DT schema
Convert the Marvell Orion SPI binding to schema.
Update compatible strings to what is in use. Generally,
"marvell,orion-spi" is a fallback compatible, but newer variants only
use "marvell,armada-380-spi".
Mark cell-index as deprecated and not required as some instances don't
use it already.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../bindings/spi/marvell,orion-spi.yaml | 102 ++++++++++++++++++
.../devicetree/bindings/spi/spi-orion.txt | 79 --------------
2 files changed, 102 insertions(+), 79 deletions(-)
create mode 100644 Documentation/devicetree/bindings/spi/marvell,orion-spi.yaml
delete mode 100644 Documentation/devicetree/bindings/spi/spi-orion.txt
diff --git a/Documentation/devicetree/bindings/spi/marvell,orion-spi.yaml b/Documentation/devicetree/bindings/spi/marvell,orion-spi.yaml
new file mode 100644
index 000000000000..7f5ec1d7f59b
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/marvell,orion-spi.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/marvell,orion-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Orion SPI controller
+
+maintainers:
+ - Andrew Lunn <andrew@...n.ch>
+ - Gregory CLEMENT <gregory.clement@...tlin.com>
+
+allOf:
+ - $ref: /schemas/spi/spi-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - marvell,orion-spi
+ - marvell,armada-380-spi # For ap80x and cp11x
+ - items:
+ - enum:
+ - marvell,armada-370-spi
+ - marvell,armada-375-spi
+ - marvell,armada-380-spi
+ - marvell,armada-390-spi
+ - marvell,armada-xp-spi
+ - const: marvell,orion-spi
+
+ cell-index:
+ description: Instance id for the SPI controller
+ deprecated: true
+
+ reg:
+ minItems: 1
+ items:
+ - description: control registers
+ - description: CS0 MBUS target/attribute registers for direct mode
+ - description: CS1 MBUS target/attribute registers for direct mode
+ - description: CS2 MBUS target/attribute registers for direct mode
+ - description: CS3 MBUS target/attribute registers for direct mode
+ - description: CS4 MBUS target/attribute registers for direct mode
+ - description: CS5 MBUS target/attribute registers for direct mode
+ - description: CS6 MBUS target/attribute registers for direct mode
+ - description: CS7 MBUS target/attribute registers for direct mode
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: core
+ - const: axi
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ spi@...00 {
+ compatible = "marvell,orion-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cell-index = <0>;
+ reg = <0x10600 0x28>;
+ clocks = <&coreclk 0>;
+ interrupts = <23>;
+ };
+ - |
+ #define MBUS_ID(target,attributes) (((target) << 24) | ((attributes) << 16))
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ spi@...00 {
+ compatible = "marvell,orion-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cell-index = <0>;
+ reg = <MBUS_ID(0xf0, 0x01) 0x10600 0x28>, /* control */
+ <MBUS_ID(0x01, 0x1e) 0 0xffffffff>, /* CS0 */
+ <MBUS_ID(0x01, 0x5e) 0 0xffffffff>, /* CS1 */
+ <MBUS_ID(0x01, 0x9e) 0 0xffffffff>, /* CS2 */
+ <MBUS_ID(0x01, 0xde) 0 0xffffffff>, /* CS3 */
+ <MBUS_ID(0x01, 0x1f) 0 0xffffffff>, /* CS4 */
+ <MBUS_ID(0x01, 0x5f) 0 0xffffffff>, /* CS5 */
+ <MBUS_ID(0x01, 0x9f) 0 0xffffffff>, /* CS6 */
+ <MBUS_ID(0x01, 0xdf) 0 0xffffffff>; /* CS7 */
+ clocks = <&coreclk 0>;
+ interrupts = <23>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/spi-orion.txt b/Documentation/devicetree/bindings/spi/spi-orion.txt
deleted file mode 100644
index 8434a65fc12a..000000000000
--- a/Documentation/devicetree/bindings/spi/spi-orion.txt
+++ /dev/null
@@ -1,79 +0,0 @@
-Marvell Orion SPI device
-
-Required properties:
-- compatible : should be on of the following:
- - "marvell,orion-spi" for the Orion, mv78x00, Kirkwood and Dove SoCs
- - "marvell,armada-370-spi", for the Armada 370 SoCs
- - "marvell,armada-375-spi", for the Armada 375 SoCs
- - "marvell,armada-380-spi", for the Armada 38x SoCs
- - "marvell,armada-390-spi", for the Armada 39x SoCs
- - "marvell,armada-xp-spi", for the Armada XP SoCs
-- reg : offset and length of the register set for the device.
- This property can optionally have additional entries to configure
- the SPI direct access mode that some of the Marvell SoCs support
- additionally to the normal indirect access (PIO) mode. The values
- for the MBus "target" and "attribute" are defined in the Marvell
- SoC "Functional Specifications" Manual in the chapter "Marvell
- Core Processor Address Decoding".
- The eight register sets following the control registers refer to
- chip-select lines 0 through 7 respectively.
-- cell-index : Which of multiple SPI controllers is this.
-- clocks : pointers to the reference clocks for this device, the first
- one is the one used for the clock on the spi bus, the
- second one is optional and is the clock used for the
- functional part of the controller
-
-Optional properties:
-- interrupts : Is currently not used.
-- clock-names : names of used clocks, mandatory if the second clock is
- used, the name must be "core", and "axi" (the latter
- is only for Armada 7K/8K).
-
-
-Example:
- spi@...00 {
- compatible = "marvell,orion-spi";
- #address-cells = <1>;
- #size-cells = <0>;
- cell-index = <0>;
- reg = <0x10600 0x28>;
- interrupts = <23>;
- };
-
-Example with SPI direct mode support (optionally):
- spi0: spi@...00 {
- compatible = "marvell,orion-spi";
- #address-cells = <1>;
- #size-cells = <0>;
- cell-index = <0>;
- reg = <MBUS_ID(0xf0, 0x01) 0x10600 0x28>, /* control */
- <MBUS_ID(0x01, 0x1e) 0 0xffffffff>, /* CS0 */
- <MBUS_ID(0x01, 0x5e) 0 0xffffffff>, /* CS1 */
- <MBUS_ID(0x01, 0x9e) 0 0xffffffff>, /* CS2 */
- <MBUS_ID(0x01, 0xde) 0 0xffffffff>, /* CS3 */
- <MBUS_ID(0x01, 0x1f) 0 0xffffffff>, /* CS4 */
- <MBUS_ID(0x01, 0x5f) 0 0xffffffff>, /* CS5 */
- <MBUS_ID(0x01, 0x9f) 0 0xffffffff>, /* CS6 */
- <MBUS_ID(0x01, 0xdf) 0 0xffffffff>; /* CS7 */
- interrupts = <23>;
- };
-
-To enable the direct mode, the board specific 'ranges' property in the
-'soc' node needs to add the entries for the desired SPI controllers
-and its chip-selects that are used in the direct mode instead of PIO
-mode. Here an example for this (SPI controller 0, device 1 and SPI
-controller 1, device 2 are used in direct mode. All other SPI device
-are used in the default indirect (PIO) mode):
- soc {
- /*
- * Enable the SPI direct access by configuring an entry
- * here in the board-specific ranges property
- */
- ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000>, /* internal regs */
- <MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000>, /* BootROM */
- <MBUS_ID(0x01, 0x5e) 0 0 0xf1100000 0x10000>, /* SPI0-DEV1 */
- <MBUS_ID(0x01, 0x9a) 0 0 0xf1110000 0x10000>; /* SPI1-DEV2 */
-
-For further information on the MBus bindings, please see the MBus
-DT documentation:
-Documentation/devicetree/bindings/bus/mvebu-mbus.txt
--
2.47.2
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