[v2,1/3] dt-bindings: mtd: rzn1: Describe Renesas RZ/N1 NAND controller

Commit Message

Miquel Raynal Nov. 26, 2021, 2:06 p.m. UTC

Add a Yaml description for this Renesas NAND controller bindings.

Provide a family-specific "rzn1" compatible and a more specific
"r9a06g032" one.

Signed-off-by: Miquel Raynal <[e-mail]>
---
 .../mtd/renesas,rzn1-nand-controller.yaml     | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml

Comments

Geert Uytterhoeven Dec. 6, 2021, 9:10 a.m. UTC | #1

On Fri, Nov 26, 2021 at 3:06 PM Miquel Raynal <[e-mail]> wrote:
> Add a Yaml description for this Renesas NAND controller bindings.
>
> Provide a family-specific "rzn1" compatible and a more specific
> "r9a06g032" one.
>
> Signed-off-by: Miquel Raynal <[e-mail]>

Thanks for the update!

Reviewed-by: Geert Uytterhoeven <[e-mail]>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [e-mail]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Patch

diff --git a/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
new file mode 100644
index 000000000000..65d45962b5b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
@@ -0,0 +1,64 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/renesas,rzn1-nand-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/N1x NAND flash controller device tree bindings
+
+maintainers:
+  - Miquel Raynal <[e-mail]>
+
+allOf:
+  - $ref: "nand-controller.yaml"
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - renesas,r9a06g032-nand-controller
+      - const: renesas,rzn1-nand-controller
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Host controller clock
+      - description: External NAND bus clock
+
+  clock-names:
+    items:
+      - const: hclk
+      - const: eclk
+
+  "#address-cells": true
+  "#size-cells": true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: true
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    nand-controller@40102000 {
+        compatible = "renesas,r9a06g032-nand-controller",
+                     "renesas,rzn1-nand-controller";
+        reg = <0x40102000 0x2000>;
+        interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&hclk_nand>, <&clk_nand>;
+        clock-names = "hclk", "eclk";
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };