From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 30DDCC3ABB8 for ; Sat, 3 May 2025 15:19:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BqH2HmLHyIyuJ8W9IW2b8eV4NgSSqEbe+82XEOxk3XM=; b=jTfXlP4IbAwF2H LpSgRhGMOuNVVP6ZnLq+ABlyLvIOjEL/0FsosbzZ/EC2jXGMfdW1ltwV+0jWCEAQmerU4Lms1Xine drGPOS7KcQAUVI6Wn6U+1lM2Y5/5bGPWgaouKyLbEVUfPiofKADetNv46wrjFKK13aIdgpymsXSOY 4ZpR77tV6R5O6QmESuXcA5fCqHNNv2urfuIL080Xi04de4sUIDfnnsdqRbsLv8kKCAMHA2jKVsrtQ DXu6Jxk4giaRwmzb4I/UYju+4JvHC3JuqhrhH0TjwuqPiWEHV6/bJ8HMamg3eBQUKaN0oUgRZTlmA 8a5ab1Yi8t/Izw9BNHJw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uBEeT-0000000418N-25gl; Sat, 03 May 2025 15:19:41 +0000 Received: from 60-248-80-70.hinet-ip.hinet.net ([60.248.80.70] helo=Atcsqr.andestech.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uBEeP-0000000415f-0ycY for linux-riscv@lists.infradead.org; Sat, 03 May 2025 15:19:39 +0000 Received: from mail.andestech.com (ATCPCS31.andestech.com [10.0.1.89]) by Atcsqr.andestech.com with ESMTPS id 543FIl2b087623 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 3 May 2025 23:18:47 +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; Sat, 3 May 2025 23:18:47 +0800 From: Ben Zong-You Xie To: CC: , , , , , , , , , , , , , , "Ben Zong-You Xie" Subject: [PATCH v2 5/9] dt-bindings: timer: add Andes machine timer Date: Sat, 3 May 2025 23:18:25 +0800 Message-ID: <20250503151829.605006-6-ben717@andestech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250503151829.605006-1-ben717@andestech.com> References: <20250503151829.605006-1-ben717@andestech.com> MIME-Version: 1.0 X-Originating-IP: [10.0.15.183] X-DKIM-Results: atcpcs31.andestech.com; dkim=none; X-DNSRBL: X-MAIL: Atcsqr.andestech.com 543FIl2b087623 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250503_081937_593436_65D568BC X-CRM114-Status: GOOD ( 15.62 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add the DT binding documentation for Andes machine timer. The RISC-V architecture defines a machine timer that provides a real-time counter and generates timer interrupts. Andes machiner timer (PLMT0) is the implementation of the machine timer, and it contains memory-mapped registers (mtime and mtimecmp). This device supports up to 32 cores. Signed-off-by: Ben Zong-You Xie --- .../bindings/timer/andestech,plmt0.yaml | 53 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/andestech,plmt0.yaml diff --git a/Documentation/devicetree/bindings/timer/andestech,plmt0.yaml b/Documentation/devicetree/bindings/timer/andestech,plmt0.yaml new file mode 100644 index 000000000000..90b612096004 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/andestech,plmt0.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/timer/andestech,plmt0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Andes machine-level timer + +description: + The Andes machine-level timer device (PLMT0) provides machine-level timer + functionality for a set of HARTs on a RISC-V platform. It has a single + fixed-frequency monotonic time counter (MTIME) register and a time compare + register (MTIMECMP) for each HART connected to the PLMT0. A timer interrupt is + generated if MTIME >= MTIMECMP. + +maintainers: + - Ben Zong-You Xie + +properties: + compatible: + items: + - enum: + - andestech,qilai-plmt + - const: andestech,plmt0 + + reg: + maxItems: 1 + + interrupts-extended: + minItems: 1 + maxItems: 32 + description: + Specifies which harts are connected to the PLMT0. Each item must points + to a riscv,cpu-intc node, which has a riscv cpu node as parent. The + PLMT0 supports 1 hart up to 32 harts. + +additionalProperties: false + +required: + - compatible + - reg + - interrupts-extended + +examples: + - | + interrupt-controller@100000 { + compatible = "andestech,qilai-plmt", "andestech,plmt0"; + reg = <0x100000 0x100000>; + interrupts-extended = <&cpu0intc 7>, + <&cpu1intc 7>, + <&cpu2intc 7>, + <&cpu3intc 7>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 856753183687..2eff000a5e17 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20814,6 +20814,7 @@ M: Ben Zong-You Xie S: Maintained F: Documentation/devicetree/bindings/interrupt-controller/andestech,plicsw.yaml F: Documentation/devicetree/bindings/riscv/andes.yaml +F: Documentation/devicetree/bindings/timer/andestech,plmt0.yaml RISC-V ARCHITECTURE M: Paul Walmsley -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv