From: Inochi Amaoto <inochiama@gmail.com>
To: Chen Wang <unicorn_wang@outlook.com>,
Thomas Gleixner <tglx@linutronix.de>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Peter Zijlstra <peterz@infradead.org>,
Inochi Amaoto <inochiama@outlook.com>,
Guo Ren <guoren@kernel.org>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>,
Hal Feng <hal.feng@starfivetech.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Yixun Lan <dlan@gentoo.org>, Inochi Amaoto <inochiama@gmail.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-riscv@lists.infradead.org
Subject: [PATCH 1/3] dt-bindings: interrupt-controller: Add Sophgo SG2044 ACLINT SSWI
Date: Fri, 4 Oct 2024 16:05:55 +0800 [thread overview]
Message-ID: <20241004080557.2262872-2-inochiama@gmail.com> (raw)
In-Reply-To: <20241004080557.2262872-1-inochiama@gmail.com>
Sophgo SG2044 has a new version of T-HEAD C920, which implement
a fully featured ACLINT device. This ACLINT has an extra SSWI
field to support fast S-mode IPI.
Add necessary compatible string for the T-HEAD ACLINT sswi device.
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
.../thead,c900-aclint-sswi.yaml | 58 +++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/thead,c900-aclint-sswi.yaml
diff --git a/Documentation/devicetree/bindings/interrupt-controller/thead,c900-aclint-sswi.yaml b/Documentation/devicetree/bindings/interrupt-controller/thead,c900-aclint-sswi.yaml
new file mode 100644
index 000000000000..0106fbf3ea1f
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/thead,c900-aclint-sswi.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/thead,c900-aclint-sswi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo sg2044 ACLINT Supervisor-level Software Interrupt Device
+
+maintainers:
+ - Inochi Amaoto <inochiama@outlook.com>
+
+description:
+ The SSWI device is a part of the riscv ACLINT device. It provides
+ supervisor-level IPI functionality for a set of HARTs on a RISC-V
+ platform. It provides a register to set an IPI (SETSSIP) for each
+ HART connected to the SSWI device.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - sophgo,sg2044-aclint-sswi
+ - const: thead,c900-aclint-sswi
+
+ reg:
+ maxItems: 1
+
+ "#interrupt-cells":
+ const: 0
+
+ interrupt-controller: true
+
+ interrupts-extended:
+ minItems: 1
+ maxItems: 4095
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#interrupt-cells"
+ - interrupt-controller
+ - interrupts-extended
+
+examples:
+ - |
+ interrupt-controller@94000000 {
+ compatible = "sophgo,sg2044-aclint-sswi", "thead,c900-aclint-sswi";
+ reg = <0x94000000 0x00004000>;
+ #interrupt-cells = <0>;
+ interrupt-controller;
+ interrupts-extended = <&cpu1intc 1>,
+ <&cpu2intc 1>,
+ <&cpu3intc 1>,
+ <&cpu4intc 1>;
+ };
+...
--
2.46.2
next prev parent reply other threads:[~2024-10-04 8:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-04 8:05 [PATCH 0/3] riscv: interrupt-controller: Add T-HEAD C900 ACLINT SSWI Inochi Amaoto
2024-10-04 8:05 ` Inochi Amaoto [this message]
2024-10-04 15:44 ` [PATCH 1/3] dt-bindings: interrupt-controller: Add Sophgo SG2044 " Conor Dooley
2024-10-05 0:46 ` Inochi Amaoto
2024-10-10 16:16 ` Conor Dooley
2024-10-04 8:05 ` [PATCH 2/3] irqchip: add T-HEAD C900 ACLINT SSWI driver Inochi Amaoto
2024-10-06 19:50 ` Thomas Gleixner
2024-10-07 0:38 ` Inochi Amaoto
2024-10-04 8:05 ` [PATCH 3/3] riscv: defconfig: Enable T-HEAD C900 ACLINT SSWI drivers Inochi Amaoto
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