From: Eddie James Date: Thu, 25 Apr 2024 16:36:48 -0500 Subject: [PATCH v3 01/14] dt-bindings: spi: Document the IBM Power SPI controller In-Reply-To: <20240425213701.655540-1-eajames@linux.ibm.com> References: <20240425213701.655540-1-eajames@linux.ibm.com> Message-ID: <20240425213701.655540-2-eajames@linux.ibm.com> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit The IBM Power chips have a basic SPI controller. Document it. Signed-off-by: Eddie James --- .../devicetree/bindings/spi/ibm,p10-spi.yaml | 56 +++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml diff --git a/Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml b/Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml new file mode 100644 index 000000000000..9bf57b621c1f --- /dev/null +++ b/Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/ibm,p10-spi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: IBM SPI Controller + +maintainers: + - Eddie James + +description: + A basic SPI controller found on IBM Power chips, accessed over FSI. This + node will always be a child node of an ibm,fsi2spi node. + +properties: + compatible: + enum: + - ibm,p10-spi + + reg: + maxItems: 1 + +required: + - compatible + - reg + +allOf: + - $ref: spi-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + fsi2spi at 1c00 { + compatible = "ibm,fsi2spi"; + reg = <0x1c00 0x400>; + #address-cells = <1>; + #size-cells = <0>; + + spi at 0 { + compatible = "ibm,p10-spi"; + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + eeprom at 0 { + compatible = "atmel,at25"; + reg = <0>; + size = <0x80000>; + address-width = <24>; + pagesize = <256>; + spi-max-frequency = <1000000>; + }; + }; + }; -- 2.39.3