From patchwork Wed Aug 9 18:09:25 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugeniy Paltsev X-Patchwork-Id: 799895 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133; helo=bombadil.infradead.org; envelope-from=linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="EgDC13dM"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xSK6s5k6Rz9sDB for ; Thu, 10 Aug 2017 04:09:57 +1000 (AEST) 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=XNcj6XjCTh47QD5D7dXmtlX4E++zxv4Eu31l/cb2q+8=; b=EgD C13dMbunNk5uIgk2jYD3J65SzixK6dw6pj7P/62yKPsS814nZ7c471+e21TQ3zxRVfG3KU1SYXbCp N4hEWsJ+xH09ZUoukkJIDzIkW3Rrt7n4Cwn9WREXq0oAIOokklPqmsq9OIWH/BtuJxcjv1eEgK3BU U5BlCWGSizq7J0MVfvRv5C1RWE78PXfDmUp5B7WNzj4MsRqD26nv8IBto1WMYKPqykEqB2NNSVGW/ 8M+vsB44U2GGTXUHQiUnTLXMe0M5lIJyGyVzqgg/3LjBJOQG4t4Mr0Njs7H9q2Rqv1baYwdw/XhGE q9UqhJ5baZQBvX77mnel6HypJgrcrYw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dfVQa-0004Ma-GM; Wed, 09 Aug 2017 18:09:56 +0000 Received: from smtprelay.synopsys.com ([198.182.60.111]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dfVQX-0004BV-MR for linux-snps-arc@lists.infradead.org; Wed, 09 Aug 2017 18:09:55 +0000 Received: from mailhost.synopsys.com (mailhost3.synopsys.com [10.12.238.238]) by smtprelay.synopsys.com (Postfix) with ESMTP id 11DCB10C1491; Wed, 9 Aug 2017 11:09:30 -0700 (PDT) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id EACBF99; Wed, 9 Aug 2017 11:09:29 -0700 (PDT) Received: from localhost.internal.synopsys.com (unknown [10.121.3.11]) by mailhost.synopsys.com (Postfix) with ESMTP id B508CFC5; Wed, 9 Aug 2017 11:09:27 -0700 (PDT) From: Eugeniy Paltsev To: linux-snps-arc@lists.infradead.org Subject: [PATCH] ARC: HSDK: DTS: Add reset controller node to manage ethernet reset Date: Wed, 9 Aug 2017 21:09:25 +0300 Message-Id: <20170809180925.31273-1-Eugeniy.Paltsev@synopsys.com> X-Mailer: git-send-email 2.9.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170809_110953_887935_5F58F515 X-CRM114-Status: UNSURE ( 5.73 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [198.182.60.111 listed in list.dnswl.org] -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Vineet Gupta , Alexey Brodkin , linux-kernel@vger.kernel.org, Rob Herring , Eugeniy Paltsev MIME-Version: 1.0 Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org DW ethernet controller on HSDK hangs sometimes after SW reset, so add reset node to make possible to reset DW ethernet controller HW. Signed-off-by: Eugeniy Paltsev --- NOTE: this patch is effective only if patches to DW ethernet controller and reset controller are applied (they are already in linux-next) arch/arc/boot/dts/hsdk.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index e096879..84052db 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -12,6 +12,7 @@ /dts-v1/; #include +#include / { model = "snps,hsdk"; @@ -102,6 +103,12 @@ ranges = <0x00000000 0xf0000000 0x10000000>; + cgu_rst: reset { + compatible = "snps,hsdk-v1.0-reset"; + #reset-cells = <1>; + reg = <0x8A0 0x4>, <0xFF0 0x4>; + }; + serial: serial@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; @@ -141,6 +148,8 @@ clocks = <&gmacclk>; clock-names = "stmmaceth"; phy-handle = <&phy0>; + resets = <&cgu_rst HSDK_V1_ETH_RESET>; + reset-names = "stmmaceth"; mdio { #address-cells = <1>;