From patchwork Fri Apr 14 02:41:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xingyu Wu X-Patchwork-Id: 13210893 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 9C3FFC77B78 for ; Fri, 14 Apr 2023 02:43:43 +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=M3cdd4OsiY+WwbDjoxW4j7eIP+oDLS7xbho+Sm6IOiY=; b=T1jVAxMPJTyvAO uh9B3+OgYgNIGJlpfwHC4Np5a53DPGRZD+oXlK+7y0ZXbK6o/PzDknw43I2zAv2o9H5bBcuoN6rpu fZ0GnOU7JINPH/qq+TtPDl1qo00SY2pLOuC3a+ED2fTj/R1QrsLE1Vpxck39i9Y25uX/ZcF9rPs3I EGt1oikx0nS53+JO0kjTS4Ho+I4XGRnFCJKHgzxNJJULp//SF77gnbK82DQVpMyRZlpXR/JpNW642 sZjjmB/CXffbifaQMiW1IQnY1qOCuqo466K/jAx/9VY22pBuQWYrDzVvGIQmmmhLBznVHgFMd0kBS haWj22RpWCu1Hc/0vHeQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pn9PV-008AEY-1q; Fri, 14 Apr 2023 02:43:37 +0000 Received: from ex01.ufhost.com ([61.152.239.75]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pn9PN-008A71-1z for linux-riscv@lists.infradead.org; Fri, 14 Apr 2023 02:43:33 +0000 Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 2BBC924E207; Fri, 14 Apr 2023 10:42:57 +0800 (CST) Received: from EXMBX061.cuchost.com (172.16.6.61) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 14 Apr 2023 10:42:57 +0800 Received: from localhost.localdomain (183.27.97.249) by EXMBX061.cuchost.com (172.16.6.61) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 14 Apr 2023 10:42:55 +0800 From: Xingyu Wu To: , , "Michael Turquette" , Stephen Boyd , Krzysztof Kozlowski , Philipp Zabel , Conor Dooley , "Emil Renner Berthing" CC: Rob Herring , Paul Walmsley , Palmer Dabbelt , Albert Ou , Hal Feng , Xingyu Wu , William Qiu , , Subject: [PATCH v3 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock generator Date: Fri, 14 Apr 2023 10:41:51 +0800 Message-ID: <20230414024157.53203-2-xingyu.wu@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230414024157.53203-1-xingyu.wu@starfivetech.com> References: <20230414024157.53203-1-xingyu.wu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.97.249] X-ClientProxiedBy: EXCAS066.cuchost.com (172.16.6.26) To EXMBX061.cuchost.com (172.16.6.61) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230413_194329_983181_FAAB8332 X-CRM114-Status: GOOD ( 13.37 ) 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: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add bindings for the PLL clock generator on the JH7110 RISC-V SoC. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Xingyu Wu --- .../bindings/clock/starfive,jh7110-pll.yaml | 46 +++++++++++++++++++ .../dt-bindings/clock/starfive,jh7110-crg.h | 6 +++ 2 files changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml new file mode 100644 index 000000000000..8aa8c7b8e42f --- /dev/null +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/starfive,jh7110-pll.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JH7110 PLL Clock Generator + +description: + This PLL are high speed, low jitter frequency synthesizers in JH7110. + Each PLL clocks work in integer mode or fraction mode by some dividers, + and the configuration registers and dividers are set in several syscon + registers. So pll node should be a child of SYS-SYSCON node. + The formula for calculating frequency is that, + Fvco = Fref * (NI + NF) / M / Q1 + +maintainers: + - Xingyu Wu + +properties: + compatible: + const: starfive,jh7110-pll + + clocks: + maxItems: 1 + description: Main Oscillator (24 MHz) + + '#clock-cells': + const: 1 + description: + See for valid indices. + +required: + - compatible + - clocks + - '#clock-cells' + +additionalProperties: false + +examples: + - | + pll-clock-controller { + compatible = "starfive,jh7110-pll"; + clocks = <&osc>; + #clock-cells = <1>; + }; diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h index 06257bfd9ac1..086a6ddcf380 100644 --- a/include/dt-bindings/clock/starfive,jh7110-crg.h +++ b/include/dt-bindings/clock/starfive,jh7110-crg.h @@ -6,6 +6,12 @@ #ifndef __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ #define __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ +/* PLL clocks */ +#define JH7110_CLK_PLL0_OUT 0 +#define JH7110_CLK_PLL1_OUT 1 +#define JH7110_CLK_PLL2_OUT 2 +#define JH7110_PLLCLK_END 3 + /* SYSCRG clocks */ #define JH7110_SYSCLK_CPU_ROOT 0 #define JH7110_SYSCLK_CPU_CORE 1