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[2620:137:e000::3:5]) by mx.google.com with ESMTPS id y4-20020a170902864400b001d076ffeecdsi1322582plt.198.2023.12.13.23.57.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Dec 2023 23:57:03 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) client-ip=2620:137:e000::3:5; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=Zigny+0Y; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id EEA1D80DB725; Wed, 13 Dec 2023 23:56:57 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234389AbjLNH4t (ORCPT + 99 others); Thu, 14 Dec 2023 02:56:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230176AbjLNH4r (ORCPT ); Thu, 14 Dec 2023 02:56:47 -0500 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0322610F; Wed, 13 Dec 2023 23:56:52 -0800 (PST) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 3BE7ugRs029444; Thu, 14 Dec 2023 01:56:42 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1702540602; bh=3lHhBGyswinmAFRMz+DLytZSA7pbdQyR25LCCNCUqkY=; h=From:To:CC:Subject:Date; b=Zigny+0Y03YdhLSJMVm8aYMkgizCfxgneY32eYMr22zaMKzGddXgLTQG8q6V1o/Y4 yCElyDJVbfWqJa/bPSjD+1YBSMAO1ZBSxpLfb+NxN502mcwdjd1asEsZbFqcm7pUOh Oh0JBVmu7EaxZbt2AmapLMkw3s8FdqnBh4/x7qsw= Received: from DLEE111.ent.ti.com (dlee111.ent.ti.com [157.170.170.22]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 3BE7ufai022171 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 14 Dec 2023 01:56:41 -0600 Received: from DLEE113.ent.ti.com (157.170.170.24) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Thu, 14 Dec 2023 01:56:41 -0600 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DLEE113.ent.ti.com (157.170.170.24) 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, 14 Dec 2023 01:56:41 -0600 Received: from a0497641-HP-Z2-Tower-G9-Workstation-Desktop-PC.dhcp.ti.com (a0497641-hp-z2-tower-g9-workstation-desktop-pc.dhcp.ti.com [172.24.227.36]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 3BE7uc86027328; Thu, 14 Dec 2023 01:56:38 -0600 From: Neha Malcom Francis To: , , , CC: , , , , , , Subject: [PATCH] arm64: dts: ti: k3-j721e: Add support for DFS in J721E A72 Date: Thu, 14 Dec 2023 13:26:37 +0530 Message-ID: <20231214075637.176586-1-n-francis@ti.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Wed, 13 Dec 2023 23:56:58 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785243236876901096 X-GMAIL-MSGID: 1785243236876901096 Add 2G, 1.5G, 1G, 750M, 500M and 250M as the supported frequencies for A72. This enables support for Dynamic Frequency Scaling (DFS). Signed-off-by: Neha Malcom Francis --- Boot logs: https://gist.github.com/nehamalcom/e3c3d0446f0467e7fd28706f7ffaeea8 J721E SoC has three different speed grade devices (see [1], 7.5 Operating Performance Points) which as of today are indiscernible in software, users of a different speed grade device must manually change the DTS to ensure their maximum speed frequency is supported. [1] https://www.ti.com/lit/gpn/tda4vm arch/arm64/boot/dts/ti/k3-j721e.dtsi | 35 ++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi index a200810df54a..fe92879f5812 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi @@ -48,6 +48,9 @@ cpu0: cpu@0 { d-cache-line-size = <64>; d-cache-sets = <256>; next-level-cache = <&L2_0>; + clocks = <&k3_clks 202 2>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; }; cpu1: cpu@1 { @@ -62,9 +65,41 @@ cpu1: cpu@1 { d-cache-line-size = <64>; d-cache-sets = <256>; next-level-cache = <&L2_0>; + clocks = <&k3_clks 203 0>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; }; }; + cpu0_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp6-2000000000 { + opp-hz = /bits/ 64 <2000000000>; + }; + + opp5-1500000000 { + opp-hz = /bits/ 64 <1500000000>; + }; + + opp4-1000000000 { + opp-hz = /bits/ 64 <1000000000>; + }; + + opp3-750000000 { + opp-hz = /bits/ 64 <750000000>; + }; + + opp2-500000000 { + opp-hz = /bits/ 64 <500000000>; + }; + + opp1-250000000 { + opp-hz = /bits/ 64 <250000000>; + }; + + }; + L2_0: l2-cache0 { compatible = "cache"; cache-level = <2>;