From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 145F5C433FE for ; Tue, 1 Nov 2022 17:10:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230210AbiKARKx (ORCPT ); Tue, 1 Nov 2022 13:10:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230111AbiKARKm (ORCPT ); Tue, 1 Nov 2022 13:10:42 -0400 Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F041DEE3; Tue, 1 Nov 2022 10:10:39 -0700 (PDT) Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2A1HAMNO055321; Tue, 1 Nov 2022 12:10:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1667322622; bh=rFwVgaNYWRw9eoQx6UvDT18p8B0eMO8pbL1DJXQsOks=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=CEgzbahm/bEF6OiFJn+BgLOcO2PNlY8oi8U/SXzdFJ1InOTzAVujsRm/Vb7TSKwiH +qwYjIjAknrQIoS/du/QFoshv1MH6kf/jv/KHQ26jeeUNeMc5GVCb3YHeGYgKtqzp0 bfHe/GUW+nfispZOaTCy6aJ9kix5nef5reb1cKWQ= Received: from DFLE110.ent.ti.com (dfle110.ent.ti.com [10.64.6.31]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2A1HAMYe087430 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 1 Nov 2022 12:10:22 -0500 Received: from DFLE110.ent.ti.com (10.64.6.31) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.6; Tue, 1 Nov 2022 12:10:22 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.6 via Frontend Transport; Tue, 1 Nov 2022 12:10:22 -0500 Received: from maitri.dhcp.ti.com (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2A1HAMwF106008; Tue, 1 Nov 2022 12:10:22 -0500 From: Vibhore Vardhan To: , , , , , , CC: , , , Subject: [5/5] arm64: dts: ti: k3-am625-sk: Add 1.4GHz OPP Date: Tue, 1 Nov 2022 12:10:22 -0500 Message-ID: <20221101171022.133322-6-vibhore@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221101171022.133322-1-vibhore@ti.com> References: <20221101171022.133322-1-vibhore@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The 1.4 GHz OPP requires supported silicon variant (T speed grade) and also VDD_CORE to be at 0.85V. All production revisions of the AM625-SK have both so we can enable the 1.4 GHz OPP for it. Any other boards based on this design should verify that they have the right silicon variant and the right power tree before adding 1.4 GHz support in their board dts file. Signed-off-by: Vibhore Vardhan --- arch/arm64/boot/dts/ti/k3-am625-sk.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts index 9b4dbae9d4aa..d3060147ad25 100644 --- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts @@ -31,6 +31,15 @@ chosen { bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000"; }; + opp-table { + /* Add 1.4GHz OPP for am625-sk board. Requires VDD_CORE to be at 0.85V */ + opp-1400000000 { + opp-hz = /bits/ 64 <1400000000>; + opp-supported-hw = <0x01 0x0004>; + clock-latency-ns = <6000000>; + }; + }; + memory@80000000 { device_type = "memory"; /* 2G RAM */ -- 2.34.1