From patchwork Fri Mar 5 15:39:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 394685 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9EADC433E9 for ; Fri, 5 Mar 2021 15:40:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B4A656508D for ; Fri, 5 Mar 2021 15:40:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230231AbhCEPkB (ORCPT ); Fri, 5 Mar 2021 10:40:01 -0500 Received: from fllv0015.ext.ti.com ([198.47.19.141]:41298 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230505AbhCEPjj (ORCPT ); Fri, 5 Mar 2021 10:39:39 -0500 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 125FdW8m097210; Fri, 5 Mar 2021 09:39:32 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1614958772; bh=Xfr9QmFmVdaAPeZKpbc0xw9xbaWHjMlzBBqzoazBpQs=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=O5nct4/CULQa2cVehleDGFen8NbHREpFaUqs1fpXMtdrGsqELuytpY0vgStlHIf8A Sjeh54ZIIkIj0mkizMsMxzaANZMLGKt6IW8gEnhRLvvYml9KoJDHq5UUrcNC9YhcNd +p8HVJ9BwNr4G9eF9A6K4awqoHTPFIXsNAhO59Fo= Received: from DLEE104.ent.ti.com (dlee104.ent.ti.com [157.170.170.34]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 125FdW0o103629 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Mar 2021 09:39:32 -0600 Received: from DLEE114.ent.ti.com (157.170.170.25) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Fri, 5 Mar 2021 09:39:32 -0600 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Fri, 5 Mar 2021 09:39:32 -0600 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 125FdQBX081046; Fri, 5 Mar 2021 09:39:30 -0600 From: Pratyush Yadav To: Nishanth Menon , Tero Kristo , Rob Herring , , , CC: Pratyush Yadav , Vignesh Raghavendra Subject: [PATCH v2 1/3] arm64: dts: ti: k3-j721e-som-p0: Enable 8D-8D-8D mode on OSPI Date: Fri, 5 Mar 2021 21:09:24 +0530 Message-ID: <20210305153926.3479-2-p.yadav@ti.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210305153926.3479-1-p.yadav@ti.com> References: <20210305153926.3479-1-p.yadav@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Set the Tx bus width to 8 so 8D-8D-8D mode can be selected. Change the frequency to 25 MHz. This is the frequency that the flash has been successfully tested with in Octal DTR mode. The total performance should still increase since 8D-8D-8D mode should be at least twice as fast as 1S-1S-8S mode. Signed-off-by: Pratyush Yadav --- Notes: No changes in v2. arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi index 57720e6a04c5..2fee2906183d 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi @@ -174,9 +174,9 @@ &ospi0 { flash@0{ compatible = "jedec,spi-nor"; reg = <0x0>; - spi-tx-bus-width = <1>; + spi-tx-bus-width = <8>; spi-rx-bus-width = <8>; - spi-max-frequency = <40000000>; + spi-max-frequency = <25000000>; cdns,tshsl-ns = <60>; cdns,tsd2d-ns = <60>; cdns,tchsh-ns = <60>;