From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from Atcsqr.andestech.com (60-248-80-70.hinet-ip.hinet.net [60.248.80.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F1DDA239E89 for ; Tue, 13 May 2025 09:50:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=60.248.80.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747129806; cv=none; b=WXpCMKnLK6BpyRHzcljXnZOrJbdWQQjTNT4hRXV/mmANK6QXeEs4bzjfBVmWbsc03Fmi0ZZxdeSdvQS56HgMZRFQxZPk/wYxI5/YKrMyAQtH8ZhhUUqG2tjbSfZuiu8QkyNgD38wDBnA1GqGHyHZy4MCtSJ6n7lYS6pCt6LJyZQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747129806; c=relaxed/simple; bh=2YncXzplbke0CiVuENDEMM/YVb58EgApc++U9eqskQA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=H5RVS8AeIDkA0v2nT8sXJb2sE9GhObY9q5Aiae8AJ3whyXzhFUVxh9JVYjOUCvRMizGDHjiD6LQU3ciS7eFUtVV6yhSNpRkzCSQcSiOzYmcCF6bbWtKCIwFmtj3+1nqwiZ4b00Xbfx3uyyWNPbVOoBmZMpYEA0toXm8M2euNQTk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=andestech.com; spf=pass smtp.mailfrom=andestech.com; arc=none smtp.client-ip=60.248.80.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=andestech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=andestech.com Received: from mail.andestech.com (ATCPCS31.andestech.com [10.0.1.89]) by Atcsqr.andestech.com with ESMTPS id 54D9nnDD044857 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 13 May 2025 17:49:49 +0800 (+08) (envelope-from ben717@andestech.com) Received: from swlinux02.andestech.com (10.0.15.183) by ATCPCS31.andestech.com (10.0.1.89) with Microsoft SMTP Server id 14.3.498.0; Tue, 13 May 2025 17:49:49 +0800 From: Ben Zong-You Xie To: CC: , , , , , , , , , , , , , , Ben Zong-You Xie , Conor Dooley Subject: [PATCH v3 4/9] dt-bindings: interrupt-controller: add Andes machine-level software interrupt controller Date: Tue, 13 May 2025 17:49:28 +0800 Message-ID: <20250513094933.1631493-5-ben717@andestech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250513094933.1631493-1-ben717@andestech.com> References: <20250513094933.1631493-1-ben717@andestech.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-DKIM-Results: atcpcs31.andestech.com; dkim=none; X-DNSRBL: X-SPAM-SOURCE-CHECK: pass X-MAIL:Atcsqr.andestech.com 54D9nnDD044857 Add the DT binding documentation for Andes machine-level software interrupt controller. In the Andes platform such as QiLai SoC, the PLIC module is instantiated a second time with all interrupt sources tied to zero as the software interrupt controller (PLICSW). PLICSW can generate machine-level software interrupts through programming its registers. Acked-by: Conor Dooley Signed-off-by: Ben Zong-You Xie --- .../andestech,plicsw.yaml | 54 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/andestech,plicsw.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/andestech,plicsw.yaml b/Documentation/devicetree/bindings/interrupt-controller/andestech,plicsw.yaml new file mode 100644 index 000000000000..eb2eb611ac09 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/andestech,plicsw.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/andestech,plicsw.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Andes machine-level software interrupt controller + +description: + In the Andes platform such as QiLai SoC, the PLIC module is instantiated a + second time with all interrupt sources tied to zero as the software interrupt + controller (PLIC_SW). PLIC_SW directly connects to the machine-mode + inter-processor interrupt lines of CPUs, so RISC-V per-CPU local interrupt + controller is the parent interrupt controller for PLIC_SW. PLIC_SW can + generate machine-mode inter-processor interrupts through programming its + registers. + +maintainers: + - Ben Zong-You Xie + +properties: + compatible: + items: + - enum: + - andestech,qilai-plicsw + - const: andestech,plicsw + + reg: + maxItems: 1 + + interrupts-extended: + minItems: 1 + maxItems: 15872 + description: + Specifies which harts are connected to the PLIC_SW. Each item must points + to a riscv,cpu-intc node, which has a riscv cpu node as parent. + +additionalProperties: false + +required: + - compatible + - reg + - interrupts-extended + +examples: + - | + interrupt-controller@400000 { + compatible = "andestech,qilai-plicsw", "andestech,plicsw"; + reg = <0x400000 0x400000>; + interrupts-extended = <&cpu0intc 3>, + <&cpu1intc 3>, + <&cpu2intc 3>, + <&cpu3intc 3>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index a0ccac1cca29..645d7137cb07 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20728,6 +20728,7 @@ F: include/linux/irqchip/riscv-imsic.h RISC-V ANDES SoC Support M: Ben Zong-You Xie S: Maintained +F: Documentation/devicetree/bindings/interrupt-controller/andestech,plicsw.yaml F: Documentation/devicetree/bindings/riscv/andes.yaml RISC-V ARCHITECTURE -- 2.34.1