dt-bindings: mtd: Add ti, elm DT binding documentation
Adds DT binding documentation for the TI Error Location Module.
This is picked up from the Linux Kernel.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/all/20221220102203.52398-8-rogerq@kernel.org
diff --git a/doc/device-tree-bindings/mtd/ti,elm.yaml b/doc/device-tree-bindings/mtd/ti,elm.yaml
new file mode 100644
index 0000000..87128c0
--- /dev/null
+++ b/doc/device-tree-bindings/mtd/ti,elm.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/ti,elm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments Error Location Module (ELM).
+
+maintainers:
+ - Roger Quadros <rogerq@kernel.org>
+
+description:
+ ELM module is used together with GPMC and NAND Flash to detect
+ errors and the location of the error based on BCH algorithms
+ so they can be corrected if possible.
+
+properties:
+ compatible:
+ enum:
+ - ti,am3352-elm
+ - ti,am64-elm
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description: Functional clock.
+
+ clock-names:
+ items:
+ - const: fck
+
+ power-domains:
+ maxItems: 1
+
+ ti,hwmods:
+ description:
+ Name of the HWMOD associated with ELM. This is for legacy
+ platforms only.
+ $ref: /schemas/types.yaml#/definitions/string
+ deprecated: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ti,am64-elm
+ then:
+ required:
+ - clocks
+ - clock-names
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ elm: ecc@0 {
+ compatible = "ti,am3352-elm";
+ reg = <0x0 0x2000>;
+ interrupts = <4>;
+ };