From patchwork Fri Sep 22 16:49:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugeniy Paltsev X-Patchwork-Id: 817646 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="AnhzUVaF"; 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 3xzKkc5d4bz9s7h for ; Sat, 23 Sep 2017 03:11:04 +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=A08MsYTRFCQPEB9qLZMi0Vok77sJrXmZhLmU3gMBX94=; b=Anh zUVaF7npQP/pwjJ/pwzDfyfWWdJMhUAuk08AETvmklbnbpcbkqSjiPJD7umU3I+tCDtZg+9bLOVcM EU1pjocaXy9efQELx2SEXq/6Nz70lLSf7ssRL1qZ4tQ0L56TEjRKL8PCKGD86XS7k7yk9jl/o9yHA v26K3fuwi/xNRk9nBmBU/hpr0IjHYxgGY1ZF2Qx0kGjyPjYLcE6nWh5I8fWJMYg/joxSnDuPaYRFw QEgD1++uAG3UYnlo4Wkewcr6FBmGPlGSEPlqPeOnSZiZjm1YQmjmItl5wa9r8OEaMlWT5avahxuxv reKWNCg/dJ8hxnzBQ/d8VLW+nftkCJg==; 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 1dvRTj-0001BY-5c; Fri, 22 Sep 2017 17:11:03 +0000 Received: from smtprelay2.synopsys.com ([198.182.60.111] helo=smtprelay.synopsys.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dvR8y-0008JY-P8 for linux-snps-arc@lists.infradead.org; Fri, 22 Sep 2017 16:49:38 +0000 Received: from mailhost.synopsys.com (mailhost3.synopsys.com [10.12.238.238]) by smtprelay.synopsys.com (Postfix) with ESMTP id 61D4010C0E9D; Fri, 22 Sep 2017 09:49:16 -0700 (PDT) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id 4ADB862B; Fri, 22 Sep 2017 09:49:16 -0700 (PDT) Received: from localhost.internal.synopsys.com (unknown [10.121.8.106]) by mailhost.synopsys.com (Postfix) with ESMTP id 836025E4; Fri, 22 Sep 2017 09:49:14 -0700 (PDT) From: Eugeniy Paltsev To: linux-snps-arc@lists.infradead.org Subject: [PATCH v3] ARC: [plat-hsdk]: Add reset controller node to manage ethernet reset Date: Fri, 22 Sep 2017 19:49:11 +0300 Message-Id: <20170922164911.1125-1-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-20170922_094936_888921_61662E97 X-CRM114-Status: UNSURE ( 5.74 ) 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: 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 --- Changes v2 -> v3: * Remove v1 suffix as we finaly got rid of v1 suffix in reset driver and docs. * Rename reset node to "reset-controller" for consistency with the other bindings. Changes v1 -> v2: * Enable HSDK reset driver in hsdk_defconfig arch/arc/boot/dts/hsdk.dts | 9 +++++++++ arch/arc/configs/hsdk_defconfig | 1 + 2 files changed, 10 insertions(+) diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index b922f3f..8adde1b 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-controller@8a0 { + compatible = "snps,hsdk-reset"; + #reset-cells = <1>; + reg = <0x8A0 0x4>, <0xFF0 0x4>; + }; + core_clk: core-clk@0 { compatible = "snps,hsdk-core-pll-clock"; reg = <0x00 0x10>, <0x14B8 0x4>; @@ -158,6 +165,8 @@ clocks = <&gmacclk>; clock-names = "stmmaceth"; phy-handle = <&phy0>; + resets = <&cgu_rst HSDK_ETH_RESET>; + reset-names = "stmmaceth"; mdio { #address-cells = <1>; diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index 7b8f8fa..15f0f6b 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -63,6 +63,7 @@ CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y CONFIG_MMC_DW=y # CONFIG_IOMMU_SUPPORT is not set +CONFIG_RESET_HSDK=y CONFIG_EXT3_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y