From patchwork Sun Sep 29 16:16:50 2019 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: 11165687 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 8905E17D4 for ; Sun, 29 Sep 2019 16:17:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6873721882 for ; Sun, 29 Sep 2019 16:17:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729138AbfI2QRT (ORCPT ); Sun, 29 Sep 2019 12:17:19 -0400 Received: from mailoutvs41.siol.net ([185.57.226.232]:54072 "EHLO mail.siol.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729089AbfI2QRS (ORCPT ); Sun, 29 Sep 2019 12:17:18 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTP id 9B557522063; Sun, 29 Sep 2019 18:17:15 +0200 (CEST) X-Virus-Scanned: amavisd-new at psrvmta09.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta09.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id mkg5Az0yZwGS; Sun, 29 Sep 2019 18:17:15 +0200 (CEST) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTPS id 510F7521084; Sun, 29 Sep 2019 18:17:15 +0200 (CEST) Received: from localhost.localdomain (cpe-86-58-59-25.static.triera.net [86.58.59.25]) (Authenticated sender: 031275009) by mail.siol.net (Postfix) with ESMTPSA id 059D2522063; Sun, 29 Sep 2019 18:17:13 +0200 (CEST) From: Jernej Skrabec To: mripard@kernel.org, wens@csie.org Cc: robh+dt@kernel.org, mark.rutland@arm.com, mchehab@kernel.org, hverkuil@xs4all.nl, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-sunxi@googlegroups.com Subject: [PATCH v2 3/6] ARM: dts: sunxi: h3/h5: Add MBUS controller node Date: Sun, 29 Sep 2019 18:16:50 +0200 Message-Id: <20190929161653.160158-4-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190929161653.160158-1-jernej.skrabec@siol.net> References: <20190929161653.160158-1-jernej.skrabec@siol.net> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Both, H3 and H5, contain 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/arm/boot/dts/sunxi-h3-h5.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi index eba190b3f9de..ef1d03812636 100644 --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi @@ -109,6 +109,7 @@ compatible = "simple-bus"; #address-cells = <1>; #size-cells = <1>; + dma-ranges; ranges; display_clocks: clock@1000000 { @@ -538,6 +539,14 @@ }; }; + mbus: dram-controller@1c62000 { + compatible = "allwinner,sun8i-h3-mbus"; + reg = <0x01c62000 0x1000>; + clocks = <&ccu 113>; + dma-ranges = <0x00000000 0x40000000 0xc0000000>; + #interconnect-cells = <1>; + }; + spi0: spi@1c68000 { compatible = "allwinner,sun8i-h3-spi"; reg = <0x01c68000 0x1000>;