From patchwork Tue Apr 24 03:01:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joyce Ooi X-Patchwork-Id: 10358581 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 410C86038F for ; Tue, 24 Apr 2018 03:02:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 32F2D274D1 for ; Tue, 24 Apr 2018 03:02:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 26DC027CF9; Tue, 24 Apr 2018 03:02:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A6A3A274D1 for ; Tue, 24 Apr 2018 03:02:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=uhnFkDbEAf5n2oYSjBqfYa7VTHnijypZuhDHh3b+hoU=; b=R2o PVt5cIpL2NKGlyirJOZ5nOnEEAegYep3HTBRiHvcr5fPTRxdTF7+7UwGOy7Y/5W1fqB+3MYWvRoKA hgNFtECaWsbocXcK5peuguHs40mu0Dc9eHLbSrwP7E/2pqwTAzEkusA5RnYChpryu01WPPCCswZTC zl5dNoJPjMRpKfm9BRH6PsTQVz9fO389N3s8aWhGS302onbHlCTWJHe+cmUkDIh+eWwyYuwOHqbOw XZzmXfLVBKn+deuxxxaQmEa/u6TKC4vop+ym51WeAljW9aAl9cprFBrMlZJl6bfMdgH/4mcBHqq15 8JsGNfeZPFyK7AUVpf2IarTr3NHH2zw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fAoEC-00014b-OC; Tue, 24 Apr 2018 03:02:48 +0000 Received: from mga12.intel.com ([192.55.52.136]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fAoE8-00013A-HE for linux-arm-kernel@lists.infradead.org; Tue, 24 Apr 2018 03:02:45 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Apr 2018 20:02:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,320,1520924400"; d="scan'208";a="34126504" Received: from ssid-ilbpg3.png.intel.com ([10.88.227.36]) by fmsmga007.fm.intel.com with ESMTP; 23 Apr 2018 20:02:30 -0700 From: "Ooi, Joyce" To: Dinh Nguyen , Rob Herring , Mark Rutland , Catalin Marinas , Will Deacon Subject: [PATCH] arm64: dts: stratix10: Change pad skew values for EMAC0 PHY driver Date: Tue, 24 Apr 2018 11:01:58 +0800 Message-Id: <1524538918-21141-1-git-send-email-joyce.ooi@intel.com> X-Mailer: git-send-email 1.9.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180423_200244_604276_CBE7D463 X-CRM114-Status: GOOD ( 14.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Yves Vandervennet , Ong Hean Loong , Ooi Joyce , See Chin Liang , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The HPS EMAC0 drive strength is changed to 4mA because the initial 8mA drive strength has caused CE test to fail. This requires changes on the pad skew for EMAC0 PHY driver. Based on several measurements done, Tx clock does not require the extra 0.96ns delay. Signed-off-by: Ooi, Joyce --- .../boot/dts/altera/socfpga_stratix10_socdk.dts | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts index 0007564..8785f78 100644 --- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts @@ -79,7 +79,7 @@ rxd2-skew-ps = <420>; /* 0ps */ rxd3-skew-ps = <420>; /* 0ps */ txen-skew-ps = <0>; /* -420ps */ - txc-skew-ps = <1860>; /* 960ps */ + txc-skew-ps = <900>; /* 0ps */ rxdv-skew-ps = <420>; /* 0ps */ rxc-skew-ps = <1680>; /* 780ps */ };