From nobody Mon Feb 9 10:50:08 2026 Received: from PH0PR06CU001.outbound.protection.outlook.com (mail-westus3azon11011014.outbound.protection.outlook.com [40.107.208.14]) (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 BA4D43A1A2B; Thu, 22 Jan 2026 10:50:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.208.14 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769079016; cv=fail; b=Sks966fBj5PAJZH0kQUTEUJpWFXePkggKtzeZmpJVRdXAttMjLWexzYvUDWaOhMbUKHTJ4X0tWY20UeafMCl7Ok2uoAJ01P3g5l3LCrM5yWd03HK4ij6ULL+JlCtDb9LVwk8dEnHfoYsjWUikO5zUgzK8E/Fv60sK59CPyIXyok= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769079016; c=relaxed/simple; bh=yswjAnuTkwC000Wn0FE235l5J8AUL16whf8wkH6H3UE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:To:CC; b=UJwu8XmQkrC1ZZPWh6xDHs8CnUwBKoPgL2gjRg4bM/+KNj7y2I/9l6OycLf+Tmb4RzTz/L2UF9gwuccQor8dP5fHsEbQwU4bQGMgE+hgAcbqbfGoE/qcMYQD9KrusNFFp5QaRBuOhxYReFwFBcpgwBoQAeO7/CGPHVSVMV0WeA0= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=rp9uyG4Q; arc=fail smtp.client-ip=40.107.208.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="rp9uyG4Q" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=wDREKTvf+TW3zClkv6/yHfRkPqnDPad/8PN2cjoiRqly1O1O69+FHjJf0RoSYmf7drlnjpGwUgrS4+shTdpdTpgMptxJoPbMfkJbWXpUIBFpzBfVdBt3e1tgN+iS3j4SgQ5SdfZP1CHH5ikMjKXYB64Y0Q+Czx7AAjaMKIG9LYV/90bZOvd4cwzRjjTU2ZXeZsNi3Q+QNigoNjfZCKHFLVpIviajn2S+6YYT7P+RojVMabLOX+KFA8DKfQMqOk6w8Aqyp8s0RBnwIcQ97a4OUxfczR3370HjZloseoTMamJBWctDSwS6UCUb+llSKSYLHaAWJRZ68P3qjPv/Q38TtA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=r05tQHc7HMBa2so/wpdZQdRDePJzCfJiaeIowMd3cVg=; b=ILaQVY9ff0mPTOMMWLsWNbFksECtXzRThGm08vYv6GAi1egeW1tN87u1TZ6gM5+iXL4xjCMUHuPLZzARpkVIJ/g3dajiOhdMHwNQgv6V9T1msCBKrjrsSJqprTRLLYJPHTXD59LfFyJaOQ2MqRSGEji11HRsLPrcJDCVxex2NrWK+hWxD235R7D5Kydgg+deyuvmOPmtmdrZWL6xzoNkfOt8duav6RsEAaCDMuyl6FpPV5yrfZWSerSc2NuAPZM71hfIBqRlNSOAwq3xPAF/kyB85F2crNP76EybrAnSMk31HdHKf0scSlhxETgn12Lro6uUTXerGeJ6Xk9N6yVIlA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 198.47.21.194) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=ti.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=ti.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=r05tQHc7HMBa2so/wpdZQdRDePJzCfJiaeIowMd3cVg=; b=rp9uyG4QjZxtEmSX4uJoJpHxEGanZw1XqDJ4tNrBoDDjmZ1jQ4Og+S3+JrOpD12jV6ugWcYWdEEXHz0eON5gIme+jzK8KEt2B91o+NJFxgnqG8burEwNYUiW+iwRDGzqWNYOv4ThLnkmNjgOcflMW06D5CY/Zz1Ob4+202J4SD0= Received: from CH0PR03CA0307.namprd03.prod.outlook.com (2603:10b6:610:118::8) by SJ0PR10MB4800.namprd10.prod.outlook.com (2603:10b6:a03:2da::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9542.11; Thu, 22 Jan 2026 10:50:10 +0000 Received: from CH1PEPF0000AD81.namprd04.prod.outlook.com (2603:10b6:610:118:cafe::14) by CH0PR03CA0307.outlook.office365.com (2603:10b6:610:118::8) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9542.10 via Frontend Transport; Thu, 22 Jan 2026 10:49:56 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 198.47.21.194) smtp.mailfrom=ti.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=ti.com; Received-SPF: Pass (protection.outlook.com: domain of ti.com designates 198.47.21.194 as permitted sender) receiver=protection.outlook.com; client-ip=198.47.21.194; helo=flwvzet200.ext.ti.com; pr=C Received: from flwvzet200.ext.ti.com (198.47.21.194) by CH1PEPF0000AD81.mail.protection.outlook.com (10.167.244.89) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9564.3 via Frontend Transport; Thu, 22 Jan 2026 10:50:07 +0000 Received: from DFLE203.ent.ti.com (10.64.6.61) by flwvzet200.ext.ti.com (10.248.192.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Thu, 22 Jan 2026 04:49:50 -0600 Received: from DFLE207.ent.ti.com (10.64.6.65) by DFLE203.ent.ti.com (10.64.6.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Thu, 22 Jan 2026 04:49:49 -0600 Received: from lelvem-mr05.itg.ti.com (10.180.75.9) by DFLE207.ent.ti.com (10.64.6.65) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20 via Frontend Transport; Thu, 22 Jan 2026 04:49:49 -0600 Received: from [127.0.1.1] (lcpd911.dhcp.ti.com [172.24.233.130]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 60MAnj3m438214; Thu, 22 Jan 2026 04:49:46 -0600 From: Dhruva Gole Date: Thu, 22 Jan 2026 16:19:08 +0530 Subject: [PATCH] arm64: dts: ti: k3-am62l: support cpufreq Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20260122-am62l-dt-cpufreq-v1-1-fabcc15e25fa@ti.com> X-B4-Tracking: v=1; b=H4sIAKMAcmkC/x3MPQqAMAxA4atIZgNt1A5eRRxKm2rA31ZFEO9uc fyG9x5IHIUTtMUDkS9Jsi4ZuizAjXYZGMVnAykyShOhnQ1N6A902xki7+ioDooqY71uIGdb5CD 3v+z69/0AuspmzmIAAAA= X-Change-ID: 20260122-am62l-dt-cpufreq-c24f0236ad15 To: Nishanth Menon , Vignesh Raghavendra , "Tero Kristo" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley CC: , , , Kendall Willis , "Bryan Brattlof" , Viresh Kumar , Dhruva Gole X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1769078986; l=3821; i=d-gole@ti.com; h=from:subject:message-id; bh=yswjAnuTkwC000Wn0FE235l5J8AUL16whf8wkH6H3UE=; b=WxCqEyaSJsKgDhQ/mG/bsyXUNUdmzH/vH99SVgmAmwTXZ1O78ILAYfCLgVEjVvK1+FfY8cEYa 6GAgScsJvrrBcubzKb10xPgCaUpqaOIbPC1Tp2I9EZZXaq8cEfMXDhp X-Developer-Key: i=d-gole@ti.com; a=ed25519; pk=k8NnY4RbxVqeqGsYfTHeVn4hPOHkjg7Mii0Ixs4rghM= X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD81:EE_|SJ0PR10MB4800:EE_ X-MS-Office365-Filtering-Correlation-Id: f6bbf2b0-6d19-485d-a628-08de59a401f1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|376014|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?utf-8?B?L1VQcE1wWFNWL3pQaGcrWVhoQ1RaZW9OV0w3VFFsNGd2aE14ekxQMVpvQ1cr?= =?utf-8?B?cWE3MlpqVXlXN2hQVmxuMlFuQnlsZ0FoUHZzSmJoZC9uR2I0QlpvR0dZRVdv?= =?utf-8?B?ZCt0OFBXVGVXaXd0UFZIeDBNRnkrVkF5OURVc0VzcmFEbXhoazFGTGRGdFhp?= =?utf-8?B?dHJCV2tscVNqdStnVjRNUVhsT0doM2twTVNTNHQwYVpzWGpYblBVTDRNOVJo?= =?utf-8?B?MFdLRzNrQm1zVCtBZ1phbEt1MlVYNUZoSmUrKytJY3FqMnZ4ZEZhNHpVL1lp?= =?utf-8?B?QXFuMzNsNkZBNndaRXZaemIrQlFvUEFrRVNQelRwVk1BK2t4K0dud0xta1dC?= =?utf-8?B?Nm15eGlqWElGYXl2bUpwQlVWdnRhUDhudUZqaEd3djFsNVVTN3ZDZDM3enBN?= =?utf-8?B?aGhqalNHNllQV3VObGwxWWNjSmpFallzSVlIVTJkMEkvVk1WMkhuSVFkMGxW?= =?utf-8?B?V1FIczZFVk9oMkRvdGVUMXdwWjZxOGU2dWkvYlJjYUF3YjNUSzBtaVp0Zm1o?= =?utf-8?B?ZVl0V2xEamhaWEpPdU52RWZqTDA5Z3FGVWpMUndVSzJiUnh2M0hhT1Z0MUV6?= =?utf-8?B?a2p2Yytpc2tQWSsyZVZiWnc3dEt1K1NUbmcyL2ptcXdOaXR2Z0QwNTJEVTU0?= =?utf-8?B?dkYya0R2eXU4bnV0dkJ3VG1DL1hvVVZpdHpUZXJXM3dmZGlJTGREeFh2QmNi?= =?utf-8?B?TzBCM1VzVjlxUGxBVkNjMFB6clloNk8zcmZrbDBTRldvOXF3Rk5GWUR1Q0hH?= =?utf-8?B?NUt6Rk0wUDh4Zyt2b0lXWVU4QkQ3Qm9wejFOQWMrUkY2bVNoK1hCaDNvS08z?= =?utf-8?B?MTdhajFkV3cyRG80MERiMDNWY3l5OE5EVEhKNVh6aC84Ym9WOGtPdFFaVkJM?= =?utf-8?B?bFk1TnJIU1pwanNYb0JveHRTTkk3ZUdOUy9rb094WlpaVmJpU0wvckRwZzd5?= =?utf-8?B?OVpRS2VTbk95Vk5IZ3liR044STR6WlF3eW5Sc3ZvNzZYMi9Bc3Z0VjNUK3ph?= =?utf-8?B?NlZya3AvKy90cE5ERVg5MWpTeHl1SGo5aXk3L3hGQVlnNXV5WXNKR3ExRzk3?= =?utf-8?B?TXF5bFFaVXFZbm54OExWa2NENitnSDJsWWQ3V3VMOGF3VStIcS9nVXFGTTRy?= =?utf-8?B?SWlzWE9vYXZMRlBKOUVyT0VIRG1XblFWMWx0TlRva0ZGRm1MRFBiSk9qa3Zv?= =?utf-8?B?bzMxL2YxRFRBT3BhS3I0QTBMY0pUcExOM1Jod0x2Tkk0aDBBVExtVk54dFph?= =?utf-8?B?cG1jMzN3UUcrV0w3L1Z0S09zUDluczg2RkJGUFU1cmk0SFpDLzBJUkJYaVdx?= =?utf-8?B?ZGdMSEJ1TmZoblZ5VFlyZ2V2YkIreERReDlvTGxRY0lVQmVvZVA4clZOdEFT?= =?utf-8?B?R3lZeEZzN3RqYU43YkZlQ0pRTEVZYXpDWGZadGExa01nNmhwalJZRi9ldnUr?= =?utf-8?B?UHJadWVKYmwzTy9UZWREbWhOVlUyU0NDbWpFL251SkxkUnlMSmI2T0lyMUVv?= =?utf-8?B?WWozczFZRjB4OUE4VU1GYm5FZzJzRUdkMzdraGcyYnJGdTRkRnpieVIwZEtW?= =?utf-8?B?NXp1WlZ4L2gxQnRic3hhZmNLUmdDdGtqeG1ESlhPR25LeVlwWUlQU3BJaTg3?= =?utf-8?B?SHlIa3FHSW12NEJNSE9FNlRSdHFZSDM0SEo5NG1ZT3dsMm5hOXRwWkZycXkw?= =?utf-8?B?Y29abWswcFNVN281dU85bVk5SzVQeXBuVDM2UHZERGI4V0tMVE1VZk01YzdG?= =?utf-8?B?RkpzbHAvekU4M1gxNFUwVzd3a0JVZjEwS1VyMGtWNGpMODF3ZUZleFNVNVZB?= =?utf-8?B?N0E1Wmc3TVdHeTVKUmFISCt2VnlqOWZJS2hMa0pBOElGcHFLNHJTVmw4Qlk1?= =?utf-8?B?UU1HKzBNYmEwOVJQY2Fqa1dXbDBUcDlIK2NlbDRqbVcyazhBdTlzN2ZFWTgx?= =?utf-8?B?bUZOeEt5QldPc1ZWM1U4UGdTZmNvMTZOUXJxSEVnenB0c2ROMGhyTUpmbm05?= =?utf-8?B?ckplM3VsRDQrN3U4cW1xOU9idmZUNHJGRGpZZFZ5azBhWTNlb2E3VEdDWXJQ?= =?utf-8?B?b0ZyTGdsL3N6dVNpUDhmQXBxRDhNTmIzSjI3ajYrWmpOSTZ2Y2hIZWZhY0xs?= =?utf-8?B?OTc0REx3MFptL1RkMW1RNHkwLys5Uld1WkRlRllaMm82Wnh1eXIrTGgyOEk0?= =?utf-8?B?NzVreDcrWkl1cUdRdGtRVnB4MUd3WDNWWEo5K0hodmxZN3NrK0RRYzZyMnp6?= =?utf-8?B?UDZYQjcyWS9BQi9GNUlDaXZpNGZBPT0=?= X-Forefront-Antispam-Report: CIP:198.47.21.194;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:flwvzet200.ext.ti.com;PTR:ErrorRetry;CAT:NONE;SFS:(13230040)(36860700013)(376014)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jan 2026 10:50:07.4391 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f6bbf2b0-6d19-485d-a628-08de59a401f1 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.194];Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CH1PEPF0000AD81.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR10MB4800 Enable CPUFreq support for AM62L SoC by adding the relevant OPP efuse table syscon to k3-am62l-wakeup.dtsi for speed grade detection. Add the operating-points-v2 table with CPU frequency steps from 200MHz to 1.25GHz to k3-am62l3.dtsi Configure CPU clocks to reference the SCMI clock controller for frequency scaling This enables proper CPU frequency scaling capabilities for the AM62L SoC using the ARM SCMI protocol to interact with the power management firmware. Signed-off-by: Dhruva Gole Reviewed-by: Kendall Willis --- The driver changes were merged previously [0], and so the DT patch is now being posted seperately.=20 Logs: root@am62lxx-evm:~# cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_availa= ble_frequencies 200000 400000 600000 800000 1000000 1250000 200000 400000 600000 800000 1000000 1250000 Changelog: - fix the bit fiels in the OPPs as per Kendall's suggestion - Fix the scmi_clk ID of the second A53 core [1] https://lore.kernel.org/all/20260120-am62l-cpufreq-v3-0-8c69b80168a3@ti= .com/ --- arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi | 5 +++ arch/arm64/boot/dts/ti/k3-am62l3.dtsi | 47 +++++++++++++++++++++++++= ++++ 2 files changed, 52 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi b/arch/arm64/boot/= dts/ti/k3-am62l-wakeup.dtsi index 61bfcdcfc66ea8d802a36ed43cd01fbbf3decc70..a42ccd0d2fcc4d204cae81508f8= 39c44ce83f558 100644 --- a/arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi @@ -127,6 +127,11 @@ chipid: chipid@14 { bootph-all; }; =20 + opp_efuse_table: syscon@18 { + compatible =3D "ti,am62-opp-efuse-table", "syscon"; + reg =3D <0x18 0x4>; + }; + cpsw_mac_syscon: ethernet-mac-syscon@2000 { compatible =3D "ti,am62p-cpsw-mac-efuse", "syscon"; reg =3D <0x2000 0x8>; diff --git a/arch/arm64/boot/dts/ti/k3-am62l3.dtsi b/arch/arm64/boot/dts/ti= /k3-am62l3.dtsi index da220b85151227c63f59b2b8ec48ae2ebb37e7bf..26d3040ff53259daba21b39a55b= b8a2ed65d4e8f 100644 --- a/arch/arm64/boot/dts/ti/k3-am62l3.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62l3.dtsi @@ -39,6 +39,8 @@ cpu0: cpu@0 { d-cache-line-size =3D <64>; d-cache-sets =3D <128>; next-level-cache =3D <&l2_0>; + operating-points-v2 =3D <&a53_opp_table>; + clocks =3D <&scmi_clk 356>; }; =20 cpu1: cpu@1 { @@ -53,6 +55,8 @@ cpu1: cpu@1 { d-cache-line-size =3D <64>; d-cache-sets =3D <128>; next-level-cache =3D <&l2_0>; + operating-points-v2 =3D <&a53_opp_table>; + clocks =3D <&scmi_clk 357>; }; }; =20 @@ -64,4 +68,47 @@ l2_0: l2-cache0 { cache-line-size =3D <64>; cache-sets =3D <256>; }; + + a53_opp_table: opp-table { + compatible =3D "operating-points-v2-ti-cpu"; + opp-shared; + syscon =3D <&opp_efuse_table>; + + opp-200000000 { + opp-hz =3D /bits/ 64 <200000000>; + opp-supported-hw =3D <0x01 0x0003>; + clock-latency-ns =3D <6000000>; + }; + + opp-400000000 { + opp-hz =3D /bits/ 64 <400000000>; + opp-supported-hw =3D <0x01 0x0003>; + clock-latency-ns =3D <6000000>; + }; + + opp-600000000 { + opp-hz =3D /bits/ 64 <600000000>; + opp-supported-hw =3D <0x01 0x0003>; + clock-latency-ns =3D <6000000>; + }; + + opp-800000000 { + opp-hz =3D /bits/ 64 <800000000>; + opp-supported-hw =3D <0x01 0x0003>; + clock-latency-ns =3D <6000000>; + }; + + opp-1000000000 { + opp-hz =3D /bits/ 64 <1000000000>; + opp-supported-hw =3D <0x01 0x0003>; + clock-latency-ns =3D <6000000>; + }; + + opp-1250000000 { + opp-hz =3D /bits/ 64 <1250000000>; + opp-supported-hw =3D <0x01 0x0002>; + clock-latency-ns =3D <6000000>; + opp-suspend; + }; + }; }; --- base-commit: e3b32dcb9f23e3c3927ef3eec6a5842a988fb574 change-id: 20260122-am62l-dt-cpufreq-c24f0236ad15 Best regards, --=20 Dhruva Gole