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Tue, 18 Feb 2020 16:13:50 +0000 From: Sagar Shrikant Kadam To: u-boot@lists.denx.de Cc: lukma@denx.de, bmeng.cn@gmail.com, Anup.Patel@wdc.com, paul.walmsley@sifive.com, vincent.chen@sifive.com, Sagar Shrikant Kadam Subject: [PATCH v1 0/2] display proper CPU frequency on hifive-unleashed Date: Tue, 18 Feb 2020 08:13:22 -0800 Message-Id: <1582042404-27356-1-git-send-email-sagar.kadam@sifive.com> X-Mailer: git-send-email 2.7.4 X-ClientProxiedBy: BY5PR03CA0005.namprd03.prod.outlook.com (2603:10b6:a03:1e0::15) To DM6PR13MB2442.namprd13.prod.outlook.com (2603:10b6:5:cb::25) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from gamma07.internal.sifive.com (64.62.193.194) by BY5PR03CA0005.namprd03.prod.outlook.com (2603:10b6:a03:1e0::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2750.17 via Frontend Transport; Tue, 18 Feb 2020 16:13:49 +0000 X-Mailer: git-send-email 2.7.4 X-Originating-IP: [64.62.193.194] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a142664e-db75-4f97-41a3-08d7b48d8a58 X-MS-TrafficTypeDiagnostic: DM6PR13MB2539: X-LD-Processed: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1,ExtAddr X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1751; X-Forefront-PRVS: 031763BCAF X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009020)(396003)(376002)(136003)(366004)(346002)(39850400004)(189003)(199004)(6916009)(5660300002)(86362001)(6666004)(956004)(8936002)(81166006)(966005)(8676002)(81156014)(2906002)(186003)(26005)(36756003)(478600001)(16526019)(52116002)(7696005)(66556008)(66476007)(66946007)(316002)(2616005)(107886003)(6486002)(4326008); DIR:OUT; SFP:1101; SCL:1; SRVR:DM6PR13MB2539; H:DM6PR13MB2442.namprd13.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; Received-SPF: None (protection.outlook.com: sifive.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData: Rd9UzfTvDI0yflOgQ1MOfR/Q5Xp+1KhY1Qx8GI3HHtgIC5M3wZEV9X18YM5IptgWO9byilx8IrTvNUhlH06Gvdvn3rzo43od+B7+jaVQLOHOzNfn0bOdoVIhSNmwgG88RW91UsLva2NFq5fDzYpsiA== X-OriginatorOrg: sifive.com X-MS-Exchange-CrossTenant-Network-Message-Id: a142664e-db75-4f97-41a3-08d7b48d8a58 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Feb 2020 16:13:50.2561 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: rTq75qLNJ8ndd0qBLkBEoNVyMavmhNfMSwYc8mUm42LqJrRbtbEoVcnaJULWuo31rWBepCaXTtQa5NWsFS0ZIg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR13MB2539 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.1 at phobos.denx.de X-Virus-Status: Clean U-Boot cmd "cpu detail" shows wrong values, as the current cpu driver is fetching cpu_freq by reading the dt node property "clock-frequency". There should be a fallback mechanism to handle a case where this property if not present in DT it should be read from the prci driver. This patch series uses the clk_get_rate method to fetch proper core clock frequency. The series is based on U-Boot commit f2a73d6867ef ("Merge tag 'u-boot-stm32-20200214' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm") Thanks to Vincent Chen for testing this patch. =>-----------------------Log for reference------------------------ => cpu detail 0: cpu@1 rv64imafdc ID = 1, freq = 4.30 GHz <= Before patch 1: cpu@2 rv64imafdc ID = 2, freq = 4.30 GHz 2: cpu@3 rv64imafdc ID = 3, freq = 4.30 GHz 3: cpu@4 rv64imafdc ID = 4, freq = 4.30 GHz ................................................................. => cpu detail 0: cpu@1 rv64imafdc ID = 1, freq = 999.100 MHz <= After patch 1: cpu@2 rv64imafdc ID = 2, freq = 999.100 MHz 2: cpu@3 rv64imafdc ID = 3, freq = 999.100 MHz 3: cpu@4 rv64imafdc ID = 4, freq = 999.100 MHz Sagar Shrikant Kadam (2): fu540: prci: add request and free clock handlers cpu: clk: riscv: populate proper CPU core clk frequency drivers/clk/sifive/fu540-prci.c | 24 ++++++++++++++++++++++++ drivers/cpu/riscv_cpu.c | 39 ++++++++++++++++++++++++++++++++++++++- 2 files changed, 62 insertions(+), 1 deletion(-)