From patchwork Fri Mar 5 15:39:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 394684 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, URIBL_BLOCKED, 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 47261C43331 for ; Fri, 5 Mar 2021 15:40:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 185FE650AB for ; Fri, 5 Mar 2021 15:40:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230477AbhCEPkC (ORCPT ); Fri, 5 Mar 2021 10:40:02 -0500 Received: from fllv0016.ext.ti.com ([198.47.19.142]:49322 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230507AbhCEPjl (ORCPT ); Fri, 5 Mar 2021 10:39:41 -0500 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 125FdZYQ046451; Fri, 5 Mar 2021 09:39:35 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1614958775; bh=GlDY+7z6NVRlFigCEbluV9xnmJ9GxqtI+/i862RKpRg=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=rMU6zeqAXxC0vlF0/0Ainri0xv++IIpQOK6jM5FPzVgMNiPBbURRufz12IQkXVWsE vSf/+yrvR3uNN49kHQtCMOBdzKGvLFbCWU98rqKq/ZyJXHt63bR2w89IYxlP0fK+Pp SdSwLLShzmEkgVfJuXO/i4tEWIf7FxKhxeZGMrEk= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 125FdZ4B119089 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Mar 2021 09:39:35 -0600 Received: from DLEE108.ent.ti.com (157.170.170.38) by DLEE112.ent.ti.com (157.170.170.23) 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 09:39:35 -0600 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE108.ent.ti.com (157.170.170.38) 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 09:39:35 -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 125FdQBY081046; Fri, 5 Mar 2021 09:39:32 -0600 From: Pratyush Yadav To: Nishanth Menon , Tero Kristo , Rob Herring , , , CC: Pratyush Yadav , Vignesh Raghavendra Subject: [PATCH v2 2/3] arm64: dts: ti: am654-base-board: Enable 8D-8D-8D mode on OSPI Date: Fri, 5 Mar 2021 21:09:25 +0530 Message-ID: <20210305153926.3479-3-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-am654-base-board.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts index fe3043943906..9e87fb313a54 100644 --- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts +++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts @@ -483,9 +483,9 @@ &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>;