From patchwork Thu Sep 26 08:34:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhruva Gole X-Patchwork-Id: 13813052 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 18AF4CCF9E9 for ; Thu, 26 Sep 2024 08:41:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:CC:To:In-Reply-To:References :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+nInyqhFC3BdNTlgq3xlhiMTc4jzcWvJSd9GJ9RnehM=; b=IkrSaa91sJlB4H8t0rbfY8qmCh hlwsL9IclD3U9ZpBSqsfoKRpZNIK0sAGX41wjs2nzeBCQpfI4/hDfnqDN2rbpZ7GzeBYi5qSoHqQy Ty5dsxOKAPOZyqb+PnhatU1k0y3P27g+Wjsz7PpHSZErdo6CyGBaJqdar4u2DY3xmeQYgiAGusIuM kDo56uAkDgCPXI4LrA6QRrJc7W1rbPR3abxnSljEcnYZljvHKCqnfA45IMWB0Saf9SAi7RLvAPlJo BZJDkMjlkFEZnZJCfC67H1n3maQaLfpL1wRASiwfqgl0mioFe1v9PK9QH+iumoI3clB/7Xlkv9JmG MWD+p09w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1stk3S-00000007jA9-09y7; Thu, 26 Sep 2024 08:40:54 +0000 Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1stjyP-00000007hQk-3v6T for linux-arm-kernel@lists.infradead.org; Thu, 26 Sep 2024 08:35:43 +0000 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 48Q8Zahj102996; Thu, 26 Sep 2024 03:35:36 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1727339736; bh=+nInyqhFC3BdNTlgq3xlhiMTc4jzcWvJSd9GJ9RnehM=; h=From:Date:Subject:References:In-Reply-To:To:CC; b=rEIaFYSyh/hFAj38cAwoXQleOR82WXwsDxaUGbEE8EyIFtUmF1YeDgZjqkVv5blF4 tc6UWiSvs7Vm8AZ9L8kToZbNX9QXZdQw7NjQ4PdHjYM6/tEQfzDKRSB5UhtUDfjPLO XDq95pOBJmg3Q0wrKtPGir2NakfyRjNxJPsOtzF8= Received: from DFLE113.ent.ti.com (dfle113.ent.ti.com [10.64.6.34]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 48Q8Zas3053777 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 26 Sep 2024 03:35:36 -0500 Received: from DFLE100.ent.ti.com (10.64.6.21) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Thu, 26 Sep 2024 03:35:35 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Thu, 26 Sep 2024 03:35:35 -0500 Received: from [127.0.1.1] (lcpd911.dhcp.ti.com [172.24.227.226]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 48Q8ZPK5064456; Thu, 26 Sep 2024 03:35:31 -0500 From: Dhruva Gole Date: Thu, 26 Sep 2024 14:04:52 +0530 Subject: [PATCH v7 1/6] arm64: dts: ti: k3-am62a: add opp frequencies MIME-Version: 1.0 Message-ID: <20240926-ti-cpufreq-fixes-v5-v7-1-3c94c398fe8f@ti.com> References: <20240926-ti-cpufreq-fixes-v5-v7-0-3c94c398fe8f@ti.com> In-Reply-To: <20240926-ti-cpufreq-fixes-v5-v7-0-3c94c398fe8f@ti.com> To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , "Rafael J. Wysocki" , Viresh Kumar CC: , , , , Andrew Davis , Bryan Brattlof , Vishal Mahaveer , Kevin Hilman , Markus Schneider-Pargmann , Dhruva Gole X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1727339725; l=3780; i=d-gole@ti.com; s=20240919; h=from:subject:message-id; bh=h4Lsswdhctun8wxkRbSRUFWd5uwJNN09QzsFaxwDKNE=; b=2AwX5huXguAEfxLNioT3MT03AzTrnrZdyCgG4uRXN72XaekyFDFGshloVLPRmUL094EVz5Ah7 UEpCdVXZPttAnMWi1MLLGcLSmCDvyudWfTGfQInLsB6MUDdAEY+DXth X-Developer-Key: i=d-gole@ti.com; a=ed25519; pk=k8NnY4RbxVqeqGsYfTHeVn4hPOHkjg7Mii0Ixs4rghM= X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240926_013542_091947_214CF704 X-CRM114-Status: GOOD ( 11.77 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Bryan Brattlof One power management technique available to the Cortex-A53s is their ability to dynamically scale their frequency across the device's Operating Performance Points (OPP) The OPPs available for the Cortex-A53s on the AM62Ax can vary based on the silicon variant used. The SoC variant is encoded into the WKUP_MMR0_WKUP0_CTRL_MMR0_JTAG_USER_ID register which is used to limit to only OPP entries the variant supports. A table of all these variants can be found in it's data sheet[0] for the AM62Ax family. Add the OPP table into the SoC's fdti file along with the syscon node to describe the WKUP_MMR0_WKUP0_CTRL_MMR0_JTAG_USER_ID register to detect the SoC variant. [0] https://www.ti.com/lit/ds/symlink/am62a3.pdf Signed-off-by: Bryan Brattlof --- arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi | 5 +++ arch/arm64/boot/dts/ti/k3-am62a7.dtsi | 51 +++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi index f5ac101a04dfa0bdae8ac4f43b01473725433c51..0b1dd5390cd3f42b0ec56bab042388722b4c22a1 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi @@ -17,6 +17,11 @@ chipid: chipid@14 { reg = <0x14 0x4>; }; + opp_efuse_table: syscon@18 { + compatible = "ti,am62-opp-efuse-table", "syscon"; + reg = <0x18 0x4>; + }; + cpsw_mac_syscon: ethernet-mac-syscon@200 { compatible = "ti,am62p-cpsw-mac-efuse", "syscon"; reg = <0x200 0x8>; diff --git a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi b/arch/arm64/boot/dts/ti/k3-am62a7.dtsi index f86a23404e6dde3ca90e41ac0efdb378948e6d50..6c99221beb6bd8e5ad93888e6b659cc6e08fb679 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a7.dtsi @@ -48,6 +48,8 @@ cpu0: cpu@0 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 135 0>; }; cpu1: cpu@1 { @@ -62,6 +64,8 @@ cpu1: cpu@1 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 136 0>; }; cpu2: cpu@2 { @@ -76,6 +80,8 @@ cpu2: cpu@2 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 137 0>; }; cpu3: cpu@3 { @@ -90,6 +96,51 @@ cpu3: cpu@3 { d-cache-line-size = <64>; d-cache-sets = <128>; next-level-cache = <&L2_0>; + operating-points-v2 = <&a53_opp_table>; + clocks = <&k3_clks 138 0>; + }; + }; + + a53_opp_table: opp-table { + compatible = "operating-points-v2-ti-cpu"; + opp-shared; + syscon = <&opp_efuse_table>; + + opp-200000000 { + opp-hz = /bits/ 64 <200000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-400000000 { + opp-hz = /bits/ 64 <400000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-800000000 { + opp-hz = /bits/ 64 <800000000>; + opp-supported-hw = <0x01 0x0007>; + clock-latency-ns = <6000000>; + }; + + opp-1000000000 { + opp-hz = /bits/ 64 <1000000000>; + opp-supported-hw = <0x01 0x0006>; + clock-latency-ns = <6000000>; + }; + + opp-1250000000 { + opp-hz = /bits/ 64 <1250000000>; + opp-supported-hw = <0x01 0x0004>; + clock-latency-ns = <6000000>; + opp-suspend; }; };