From: Jules Maselbas <jmaselbas@xxxxxxxxx>
Add documentation for `kalray,kv3-1-ipi-ctrl` binding.
Co-developed-by: Jules Maselbas <jmaselbas@xxxxxxxxx>
Signed-off-by: Jules Maselbas <jmaselbas@xxxxxxxxx>
Signed-off-by: Yann Sionneau <ysionneau@xxxxxxxxx>
---
Notes:
V1 -> V2: new patch
.../kalray/kalray,kv3-1-ipi-ctrl.yaml | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/kalray/kalray,kv3-1-ipi-ctrl.yaml
diff --git a/Documentation/devicetree/bindings/kalray/kalray,kv3-1-ipi-ctrl.yaml b/Documentation/devicetree/bindings/kalray/kalray,kv3-1-ipi-ctrl.yaml
new file mode 100644
index 000000000000..dc8026b12905
--- /dev/null
+++ b/Documentation/devicetree/bindings/kalray/kalray,kv3-1-ipi-ctrl.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/kalray/kalray,kv3-1-ipi-ctrl#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Kalray kv3-1 Inter-Processor Interrupt Controller (IPI)
+
+description: |
+ The Inter-Processor Interrupt Controller (IPI) provides a fast synchronization
+ mechanism to the software. It exposes eight independent set of registers that
+ can be use to notify each processor in the cluster.
+ A set of registers contains two 32-bit registers:
+ - 17-bit interrupt control, one bit per core, raise an interrupt on write
+ - 17-bit mask, one per core, to enable interrupts
+
+ Bit at offsets 0 to 15 selects cores in the cluster, respectively PE0 to PE15,
+ while bit at offset 16 is for the cluster Resource Manager (RM) core.
+
+ The eight output interrupts are connected to each processor core interrupt
+ controller (intc).
+
+properties:
+ compatible:
+ const: kalray,kv3-1-ipi-ctrl
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupt-parent
+ - interrupts
+
+examples:
+ - |
+ ipi: inter-processor-interrupt@ad0000 {
+ compatible = "kalray,kv3-1-ipi-ctrl";
+ reg = <0x00 0xad0000 0x00 0x1000>;
+ interrupt-parent = <&intc>;
+ interrupts = <24>;
+ };
+
+...
--
2.37.2
