[PATCH v7 1/2] dt-bindings: mtd: nuvoton,ma35d1-nand: add new bindings

Hui-Ping Chen
2024-10-18T02:28:38Z

Add dt-bindings for the Nuvoton MA35 SoC NAND Controller.

Signed-off-by: Hui-Ping Chen <hpchen0nvt@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
.../bindings/mtd/nuvoton,ma35d1-nand.yaml | 95 +++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/nuvoton,ma35d1-nand.yaml

diff --git a/Documentation/devicetree/bindings/mtd/nuvoton,ma35d1-nand.yaml b/Documentation/devicetree/bindings/mtd/nuvoton,ma35d1-nand.yaml
new file mode 100644
index 000000000000..0b651450a8f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/nuvoton,ma35d1-nand.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/nuvoton,ma35d1-nand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton MA35D1 NAND Flash Interface (NFI) Controller
+
+maintainers:
+ - Hui-Ping Chen <hpchen0nvt@gmail.com>
+
+allOf:
+ - $ref: nand-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - nuvoton,ma35d1-nand-controller
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+patternProperties:
+ "^nand@[a-f0-9]$":
+ type: object
+ $ref: raw-nand-chip.yaml
+ properties:
+ reg:
+ minimum: 0
+ maximum: 1
+
+ nand-ecc-step-size:
+ enum: [512, 1024]
+
+ nand-ecc-strength:
+ enum: [8, 12, 24]
+
+ required:
+ - reg
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/nuvoton,ma35d1-clk.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ nand-controller@401A0000 {
+ compatible = "nuvoton,ma35d1-nand-controller";
+ reg = <0x0 0x401A0000 0x0 0x1000>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk NAND_GATE>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nand@0 {
+ reg = <0>;
+ nand-on-flash-bbt;
+ nand-ecc-step-size = <512>;
+ nand-ecc-strength = <8>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ uboot@0 {
+ label = "nand-uboot";
+ read-only;
+ reg = <0x0 0x300000>;
+ };
+ };
+ };
+ };
+ };
+
+...
--
2.25.1