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Tue, 7 May 2024 06:53:27 +0000 Received: from NTZPR01MB0956.CHNPR01.prod.partner.outlook.cn ([fe80::e903:99a6:10b7:304d]) by NTZPR01MB0956.CHNPR01.prod.partner.outlook.cn ([fe80::e903:99a6:10b7:304d%6]) with mapi id 15.20.7472.044; Tue, 7 May 2024 06:53:27 +0000 From: Xingyu Wu To: Michael Turquette , Stephen Boyd , Conor Dooley , Emil Renner Berthing , Rob Herring , Krzysztof Kozlowski Cc: Paul Walmsley , Palmer Dabbelt , Albert Ou , Hal Feng , Xingyu Wu , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org Subject: [PATCH v5 2/2] riscv: dts: starfive: visionfive-2: Fix lower rate of CPUfreq by setting PLL0 rate to 1.5GHz Date: Tue, 7 May 2024 14:53:19 +0800 Message-Id: <20240507065319.274976-3-xingyu.wu@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240507065319.274976-1-xingyu.wu@starfivetech.com> References: <20240507065319.274976-1-xingyu.wu@starfivetech.com> X-ClientProxiedBy: SH0PR01CA0020.CHNPR01.prod.partner.outlook.cn (2406:e500:c311:5::32) To NTZPR01MB0956.CHNPR01.prod.partner.outlook.cn (2406:e500:c510:8::10) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: NTZPR01MB0956:EE_|NTZPR01MB1034:EE_ X-MS-Office365-Filtering-Correlation-Id: 3dd31bc6-e76a-4ca7-16b9-08dc6e626608 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; 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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 CPUfreq supports 4 cpu frequency loads on 375/500/750/1500MHz. But now PLL0 rate is 1GHz and the cpu frequency loads become 333/500/500/1000MHz in fact. The PLL0 rate should be default set to 1.5GHz and set the cpu_core rate to 500MHz in safe. Fixes: e2c510d6d630 ("riscv: dts: starfive: Add cpu scaling for JH7110 SoC") Signed-off-by: Xingyu Wu Reviewed-by: Emil Renner Berthing --- .../boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi index 45b58b6f3df8..28981b267de4 100644 --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi @@ -390,6 +390,12 @@ spi_dev0: spi@0 { }; }; +&syscrg { + assigned-clocks = <&syscrg JH7110_SYSCLK_CPU_CORE>, + <&pllclk JH7110_PLLCLK_PLL0_OUT>; + assigned-clock-rates = <500000000>, <1500000000>; +}; + &sysgpio { i2c0_pins: i2c0-0 { i2c-pins {