From patchwork Mon Sep 4 09:48:43 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugeniy Paltsev X-Patchwork-Id: 809577 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="k+c0DNPF"; 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 3xm4n61BNBz9s7c for ; Mon, 4 Sep 2017 19:49:14 +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=Q0COGR9WmiiUuYyD7LVDvSsy53JtFVCKhl7Yd6Hl9KU=; b=k+c 0DNPFSD5VZDERObyz67PScuToGClF1LR3gLQYH0Vsk2FgLS9XqelZNM/TnXvhKksjOqPIjBpeMzNf QtLVBGCKdqZT1HozHNcDbnBjXqp3HNMOeb0apMldoj1JlIRbQt5UDkxCSBG6d8ukQb14lPyygho7v xrkZ4CL0XQF5LYRtFErgVrOddO9IGDIS7fHtZtlSrLlv0JRIISzLkCAuJqkgasFtsrNehWFsFnTWc dgVJj/4YNqKP9Pi9lqkxW3Ko8Qsf5+MbaecYARinY0iYJnbwb0SVyxdU8adtJaYfkpc+vCFm8o/6W QYGwWEqd4UUXFLDKKLlyvqt1Wi9fz7Q==; 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 1doo0G-00037u-QJ; Mon, 04 Sep 2017 09:49:12 +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 1doo0D-0002j7-PN for linux-snps-arc@lists.infradead.org; Mon, 04 Sep 2017 09:49:11 +0000 Received: from mailhost.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id 968BA10C11D7; Mon, 4 Sep 2017 02:48:48 -0700 (PDT) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id 7C8F3C10; Mon, 4 Sep 2017 02:48:48 -0700 (PDT) Received: from localhost.internal.synopsys.com (unknown [10.121.8.106]) by mailhost.synopsys.com (Postfix) with ESMTP id 8D117BDD; Mon, 4 Sep 2017 02:48:45 -0700 (PDT) From: Eugeniy Paltsev To: linux-snps-arc@lists.infradead.org Subject: [PATCH] ARC: HSDK: Add core pll node to DT to manage cpu clk Date: Mon, 4 Sep 2017 12:48:43 +0300 Message-Id: <20170904094843.32207-1-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-20170904_024909_838090_25F87D41 X-CRM114-Status: UNSURE ( 6.75 ) 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 Add core pll node (core_clk) to manage cpu frequency. core_clk node represents pll itself. input_clk node represents clock signal source (basically xtal) which comes to pll input. Signed-off-by: Eugeniy Paltsev --- arch/arc/boot/dts/hsdk.dts | 11 +++++++++-- arch/arc/configs/hsdk_defconfig | 1 + 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index 229d13a..8412669 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -57,10 +57,10 @@ }; }; - core_clk: core-clk { + input_clk: input-clk { #clock-cells = <0>; compatible = "fixed-clock"; - clock-frequency = <500000000>; + clock-frequency = <33333333>; }; cpu_intc: cpu-interrupt-controller { @@ -102,6 +102,13 @@ ranges = <0x00000000 0xf0000000 0x10000000>; + core_clk: core-clk@0 { + compatible = "snps,hsdk-core-pll-clock"; + reg = <0x00 0x10>, <0x14B8 0x4>; + #clock-cells = <0>; + clocks = <&input_clk>; + }; + serial: serial@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index a7114cd..3f35f52 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -62,6 +62,7 @@ CONFIG_MMC=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y CONFIG_MMC_DW=y +CONFIG_CLK_HSDK=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_EXT3_FS=y CONFIG_VFAT_FS=y