2022-05-04 06:04:47

by matthew.gerlach

[permalink] [raw]
Subject: [PATCH v2 1/3] dt-bindings: misc: add bindings for Intel HPS Copy Engine

From: Matthew Gerlach <[email protected]>

Add device tree bindings documentation for the Intel Hard
Processor System (HPS) Copy Engine.

Signed-off-by: Matthew Gerlach <[email protected]>
---
.../bindings/misc/intel,hps-copy-engine.yaml | 48 +++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/misc/intel,hps-copy-engine.yaml

diff --git a/Documentation/devicetree/bindings/misc/intel,hps-copy-engine.yaml b/Documentation/devicetree/bindings/misc/intel,hps-copy-engine.yaml
new file mode 100644
index 000000000000..74e7da9002f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/intel,hps-copy-engine.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2022, Intel Corporation
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/misc/intel,hps-copy-engine.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Intel HPS Copy Engine
+
+maintainers:
+ - Matthew Gerlach <[email protected]>
+
+description: |
+ The Intel Hard Processor System (HPS) Copy Engine is an IP block used to copy
+ a bootable image from host memory to HPS DDR. Additionally, there is a
+ register the HPS can use to indicate the state of booting the copied image as
+ well as a keep-a-live indication to the host.
+
+properties:
+ compatible:
+ items:
+ - const: intel,hps-copy-engine
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ agilex_hps_bridges: [email protected] {
+ compatible = "simple-bus";
+ reg = <0x80000000 0x60000000>,
+ <0xf9000000 0x00100000>;
+ reg-names = "axi_h2f", "axi_h2f_lw";
+ #address-cells = <0x2>;
+ #size-cells = <0x1>;
+ ranges = <0x00000000 0x00000000 0xf9000000 0x00001000>;
+
+ [email protected] {
+ compatible = "intel,hps-copy-engine";
+ reg = <0x00000000 0x00000000 0x00001000>;
+ };
+ };
--
2.25.1