summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/nvmem/apple,efuses.yaml')
-rw-r--r--Documentation/devicetree/bindings/nvmem/apple,efuses.yaml50
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml b/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
new file mode 100644
index 000000000..5ec8f2bdb
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/apple,efuses.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple SoC eFuse-based NVMEM
+
+description: |
+ Apple SoCs such as the M1 contain factory-programmed eFuses used to e.g. store
+ calibration data for the PCIe and the Type-C PHY or unique chip identifiers
+ such as the ECID.
+
+maintainers:
+ - Sven Peter <sven@svenpeter.dev>
+
+allOf:
+ - $ref: "nvmem.yaml#"
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t8103-efuses
+ - apple,t6000-efuses
+ - const: apple,efuses
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ efuse@3d2bc000 {
+ compatible = "apple,t8103-efuses", "apple,efuses";
+ reg = <0x3d2bc000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ecid: efuse@500 {
+ reg = <0x500 0x8>;
+ };
+ };
+
+...