[PATCH v2 2/5] dt-bindings: arm: sse710: Add Host Base System Control

Abdellatif El Khlifi
2024-08-22T17:12:40Z

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@arm.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@arm.com>
+ - Hugues Kamba Mpiana <hugues.kambampiana@arm.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@1a010000 {
+ 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