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Message-Id: <20240822170951.339492-3-abdellatif.elkhlifi@arm.com>
Date: Thu, 22 Aug 2024 18:09:48 +0100
From: Abdellatif El Khlifi <abdellatif.elkhlifi@....com>
To: mathieu.poirier@...aro.org
Cc: Adam.Johnston@....com,
	Hugues.KambaMpiana@....com,
	Drew.Reed@....com,
	abdellatif.elkhlifi@....com,
	andersson@...nel.org,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	krzysztof.kozlowski+dt@...aro.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-remoteproc@...r.kernel.org,
	liviu.dudau@....com,
	lpieralisi@...nel.org,
	robh@...nel.org,
	sudeep.holla@....com,
	robin.murphy@....com
Subject: [PATCH v2 2/5] dt-bindings: arm: sse710: Add Host Base System Control

Add devicetree binding schema for the SSE-710 Host Base System Control

SSE-710 is implemented by the Corstone-1000 IoT Reference Design
Platform [1].

The Host Base System Control has registers to control the clocks, power,
and reset for SSE-710 subsystem [2]. It resides within AONTOP power domain.
The registers are mapped under the SSE-710 Host System memory map [3].

[1]: https://developer.arm.com/Processors/Corstone-1000
[2]: https://developer.arm.com/documentation/102342/latest/
[3]: https://developer.arm.com/documentation/102342/0000/Programmers-model/Register-descriptions/Host-Base-System-Control-register-summary

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@....com>
---
 .../arm/arm,sse710-host-base-sysctrl.yaml     | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/arm,sse710-host-base-sysctrl.yaml

diff --git a/Documentation/devicetree/bindings/arm/arm,sse710-host-base-sysctrl.yaml b/Documentation/devicetree/bindings/arm/arm,sse710-host-base-sysctrl.yaml
new file mode 100644
index 000000000000..e344a73e329d
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,sse710-host-base-sysctrl.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,sse710-host-base-sysctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SSE-710 Host Base System Control
+
+maintainers:
+  - Abdellatif El Khlifi <abdellatif.elkhlifi@....com>
+  - Hugues Kamba Mpiana <hugues.kambampiana@....com>
+
+description: |+
+  The Host Base System Control has registers to control the clocks, power, and
+  reset for SSE-710 subsystem. It resides within AONTOP power domain.
+  The registers are mapped under the SSE-710 Host System memory map.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - arm,sse710-host-base-sysctrl
+      - const: simple-mfd
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+patternProperties:
+  "^extsys[0-1]$":
+    description:
+      SSE-710 subsystem supports up to two External Systems.
+    $ref: /schemas/remoteproc/arm,sse710-extsys.yaml#
+    unevaluatedProperties: false
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    syscon@...10000 {
+        compatible = "arm,sse710-host-base-sysctrl", "simple-mfd", "syscon";
+        reg = <0x1a010000 0x1000>;
+
+        extsys0 {
+            compatible = "arm,sse710-extsys";
+            firmware-name = "es_flashfw.elf";
+            #extsys-id = <0>;
+            mbox-names = "txes0", "rxes0";
+            mboxes = <&mhu0_hes0 0 1>, <&mhu0_es0h 0 1>;
+            memory-region = <&extsys0_vring0>, <&extsys0_vring1>;
+        };
+    };
-- 
2.25.1


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