From patchwork Sat Jan 25 11:03:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Jernej_=C5=A0krabec?= X-Patchwork-Id: 11351543 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 83C79921 for ; Sat, 25 Jan 2020 11:05:00 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 42FAB20704 for ; Sat, 25 Jan 2020 11:05:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="O8ZTHH/P" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 42FAB20704 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=siol.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: 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: List-Owner; bh=wgK1nTCMccVieFLz3pwA/3vR4EhyjcO5Pzn/Sj3t6Kg=; b=O8ZTHH/PfebOaS Gqqnc5Vs1n+B6dmeskceJ5GLfMN+QCihJZUFURwMutjRbZk8t8yu+EzXJ7s2q4xnBRErNH2DsNX1l M8dTHV5G1lIckYzj4O/0YPsJeIlw58m8JUWuAKlKySEfK3MRhPz0UPip7C22kcUSytPoIcZji2zqs 0HmT1PzmTGIzRZhkyXo8LekQH0GQYB6bjpJWiTerQKSOXcSI3W/TjpFo976isEeSgjX03npIlzAY5 CxdLahyapgCyGpVp9IXelNhzlG5tuuUHCu/OUEclrgUl+Ahda7WeeOoGfHpoIijQir2swudMUiUOi AzL2jEM//OlgZkRiYoag==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ivJFI-0006Vt-D5; Sat, 25 Jan 2020 11:04:56 +0000 Received: from mailoutvs43.siol.net ([185.57.226.234] helo=mail.siol.net) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ivJEX-0005qf-8N for linux-arm-kernel@lists.infradead.org; Sat, 25 Jan 2020 11:04:11 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTP id 45619520F99; Sat, 25 Jan 2020 12:04:07 +0100 (CET) X-Virus-Scanned: amavisd-new at psrvmta11.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta11.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id EefBMFvBfySl; Sat, 25 Jan 2020 12:04:07 +0100 (CET) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTPS id 004BE520EEE; Sat, 25 Jan 2020 12:04:07 +0100 (CET) Received: from localhost.localdomain (cpe-194-152-20-232.static.triera.net [194.152.20.232]) (Authenticated sender: 031275009) by mail.siol.net (Postfix) with ESMTPSA id AC158520F72; Sat, 25 Jan 2020 12:04:04 +0100 (CET) From: Jernej Skrabec To: mripard@kernel.org, wens@csie.org Subject: [PATCH 3/5] arm64: dts: allwinner: a64: Add MBUS controller node Date: Sat, 25 Jan 2020 12:03:51 +0100 Message-Id: <20200125110353.591658-4-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200125110353.591658-1-jernej.skrabec@siol.net> References: <20200125110353.591658-1-jernej.skrabec@siol.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200125_030409_452045_9C9CB86A X-CRM114-Status: UNSURE ( 9.40 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [185.57.226.234 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, robh+dt@kernel.org, mchehab@kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org A64 contains MBUS, which is the bus used by DMA devices to access system memory. MBUS controller is responsible for arbitration between channels based on set priority and can do some other things as well, like report bandwidth used. It also maps RAM region to different address than CPU. Signed-off-by: Jernej Skrabec --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index 862b47dc9dc9..d225ea1f3b87 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -1061,6 +1061,14 @@ pwm: pwm@1c21400 { status = "disabled"; }; + mbus: dram-controller@1c62000 { + compatible = "allwinner,sun50i-a64-mbus"; + reg = <0x01c62000 0x1000>; + clocks = <&ccu CLK_MBUS>; + dma-ranges = <0x00000000 0x40000000 0xc0000000>; + #interconnect-cells = <1>; + }; + csi: csi@1cb0000 { compatible = "allwinner,sun50i-a64-csi"; reg = <0x01cb0000 0x1000>;