From patchwork Thu Jan 9 16:48:02 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Vaussard X-Patchwork-Id: 3462521 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id BBCF5C02DC for ; Thu, 9 Jan 2014 16:53:11 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9E17A20120 for ; Thu, 9 Jan 2014 16:53:10 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5FC9F2010C for ; Thu, 9 Jan 2014 16:53:09 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W1Ioy-0006LM-AS; Thu, 09 Jan 2014 16:51:05 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1W1IoT-00031U-81; Thu, 09 Jan 2014 16:50:33 +0000 Received: from slb-mail4.epfl.ch ([2001:620:618:1e0:1:80b2:e059:1] helo=smtp4.epfl.ch) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W1In6-0002nb-20 for linux-arm-kernel@lists.infradead.org; Thu, 09 Jan 2014 16:49:14 +0000 Received: (qmail 28448 invoked by uid 107); 9 Jan 2014 16:48:44 -0000 X-Virus-Scanned: ClamAV Received: from lsro1pc340.epfl.ch (HELO lsro1pc340.epfl.ch) (128.178.145.154) (authenticated) by smtp4.epfl.ch (AngelmatoPhylax SMTP proxy) with ESMTPSA; Thu, 09 Jan 2014 17:48:44 +0100 From: Florian Vaussard To: Tony Lindgren , Benoit Cousson Subject: [PATCH 08/18] ARM: dts: omap: Add common file for SMSC9221 Date: Thu, 9 Jan 2014 17:48:02 +0100 Message-Id: <1389286092-27087-9-git-send-email-florian.vaussard@epfl.ch> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1389286092-27087-1-git-send-email-florian.vaussard@epfl.ch> References: <1389286092-27087-1-git-send-email-florian.vaussard@epfl.ch> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140109_114908_518232_96EE26C8 X-CRM114-Status: UNSURE ( 8.44 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) Cc: linux-omap@vger.kernel.org, florian.vaussard@epfl.ch, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some devices (SMSC9217, SMSC9218 and SMSC9221 at least) have better timings, allowing a higher transfer speed. Create a common file with these timings. Performance results with iperf: - omap-gpmc-smsc911x.dtsi => 54.9 Mbps - omap-gpmc-smsc9221.dtsi => 92.7 Mbps Signed-off-by: Florian Vaussard --- arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi | 58 +++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi diff --git a/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi new file mode 100644 index 0000000..73e272f --- /dev/null +++ b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi @@ -0,0 +1,58 @@ +/* + * Common file for GPMC connected smsc9221 on omaps + * + * Compared to smsc911x, smsc9221 (and others like smsc9217 + * or smsc 9218) has faster timings, leading to higher + * bandwidth. + * + * Note that the board specifc DTS file needs to specify + * ranges, pinctrl, reg, interrupt parent and interrupts. + */ + +/ { + vddvario: regulator-vddvario { + compatible = "regulator-fixed"; + regulator-name = "vddvario"; + regulator-always-on; + }; + + vdd33a: regulator-vdd33a { + compatible = "regulator-fixed"; + regulator-name = "vdd33a"; + regulator-always-on; + }; +}; + +&gpmc { + ethernet@gpmc { + compatible = "smsc,lan9221","smsc,lan9115"; + bank-width = <2>; + + gpmc,mux-add-data; + gpmc,cs-on-ns = <0>; + gpmc,cs-rd-off-ns = <42>; + gpmc,cs-wr-off-ns = <36>; + gpmc,adv-on-ns = <6>; + gpmc,adv-rd-off-ns = <12>; + gpmc,adv-wr-off-ns = <12>; + gpmc,oe-on-ns = <0>; + gpmc,oe-off-ns = <42>; + gpmc,we-on-ns = <0>; + gpmc,we-off-ns = <36>; + gpmc,rd-cycle-ns = <60>; + gpmc,wr-cycle-ns = <54>; + gpmc,access-ns = <36>; + gpmc,page-burst-access-ns = <0>; + gpmc,bus-turnaround-ns = <0>; + gpmc,cycle2cycle-delay-ns = <0>; + gpmc,wr-data-mux-bus-ns = <18>; + gpmc,wr-access-ns = <42>; + gpmc,cycle2cycle-samecsen; + gpmc,cycle2cycle-diffcsen; + + vddvario-supply = <&vddvario>; + vdd33a-supply = <&vdd33a>; + reg-io-width = <4>; + smsc,save-mac-address; + }; +};