linux-kernel - [PATCH 1/3] dt-bindings: spi: add Sophgo SPI NOR controller driver

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Message-ID: <20250224101213.26003-2-looong.bin@gmail.com>
Date: Mon, 24 Feb 2025 18:12:00 +0800
From: Longbin Li <looong.bin@...il.com>
To: Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>
Cc: Longbin Li <looong.bin@...il.com>,
	linux-spi@...r.kernel.org,
	devicetree@...r.kernel.org,
	sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: [PATCH 1/3] dt-bindings: spi: add Sophgo SPI NOR controller driver

Add SPI NOR driver for Sophgo, including read, write operations.

Signed-off-by: Longbin Li <looong.bin@...il.com>
---
 .../bindings/spi/spi-sophgo-nor.yaml          | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/spi-sophgo-nor.yaml

diff --git a/Documentation/devicetree/bindings/spi/spi-sophgo-nor.yaml b/Documentation/devicetree/bindings/spi/spi-sophgo-nor.yaml
new file mode 100644
index 000000000000..0b54946c649f
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-sophgo-nor.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/spi-sophgo-nor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SPI NOR controller
+
+maintainers:
+  - Longbin Li <looong.bin@...il.com>
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    const: sophgo,sg2044-spifmc-nor
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+  - resets
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    spi@...0000 {
+      compatible = "sophgo,sg2044-spifmc-nor";
+      reg = <0x1000000 0x4000000>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+      clocks = <&clk 0>;
+      interrupts = <37 IRQ_TYPE_LEVEL_HIGH>;
+      resets = <&rst 0>;
+    };
--
2.48.1