From nobody Wed Dec 17 20:57:29 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 31263C61D97 for ; Wed, 22 Nov 2023 14:14:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344271AbjKVOO6 (ORCPT ); Wed, 22 Nov 2023 09:14:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232190AbjKVOOx (ORCPT ); Wed, 22 Nov 2023 09:14:53 -0500 Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 122C018E; Wed, 22 Nov 2023 06:14:48 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 166E2E000A; Wed, 22 Nov 2023 14:14:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1700662487; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ABQkvnbU9jREL+xGEduT9Jz440AQVxL+9NX8sRWpyl0=; b=UOYPKGnr7sOyxEsQY3xpDVSRRGBZINCji7asEbWpRM803LzqHZWc45iqwkf6AbjKlWKvjI FxfR1WGV6IKEaFYUpUBU6T8z0wnOLgvJVXLXF7fJiAmxbrbMf3HAHiHnz9woxoT6o6IjoV fANbhFgt7lRAJUBPV/vlsDbH/bYeialQuZPUp/ACdQ/6k+Ka59dMxDiiycLCWiEpKVuu4t JyvCqDr5ZePlFwWBKyBOK5PPmN3IoneyuHOTyPx2iRQely6KIozj+MQTnc/IKbRimK1W18 cml8a1t27JJp4x3hW5XyimZLnmBevRq6GZIFwCJnCI/u+d9qhKPJj2dJATzdZA== From: Paul Kocialkowski To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Maxime Ripard , Laurent Pinchart , Michael Turquette , Stephen Boyd , Paul Kocialkowski Subject: [PATCH v7 2/7] ARM: dts: sun8i: v3s: Add mbus node to represent the interconnect Date: Wed, 22 Nov 2023 15:14:20 +0100 Message-ID: <20231122141426.329694-3-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231122141426.329694-1-paul.kocialkowski@bootlin.com> References: <20231122141426.329694-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: paul.kocialkowski@bootlin.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The V3s uses the mbus interconnect to provide DRAM access for a number of blocks. The SoC can only map 2 GiB of DRAM, which is reflected in the dma-ranges property. Signed-off-by: Paul Kocialkowski Reviewed-by: Samuel Holland --- arch/arm/boot/dts/allwinner/sun8i-v3s.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm/boot/dts/allwinner/sun8i-v3s.dtsi b/arch/arm/boot/dts= /allwinner/sun8i-v3s.dtsi index 3b9a282c2746..506e98f4f69d 100644 --- a/arch/arm/boot/dts/allwinner/sun8i-v3s.dtsi +++ b/arch/arm/boot/dts/allwinner/sun8i-v3s.dtsi @@ -579,6 +579,21 @@ int_mii_phy: ethernet-phy@1 { }; }; =20 + mbus: dram-controller@1c62000 { + compatible =3D "allwinner,sun8i-v3s-mbus"; + reg =3D <0x01c62000 0x1000>, + <0x01c63000 0x1000>; + reg-names =3D "mbus", "dram"; + clocks =3D <&ccu CLK_MBUS>, + <&ccu CLK_DRAM>, + <&ccu CLK_BUS_DRAM>; + clock-names =3D "mbus", "dram", "bus"; + #address-cells =3D <1>; + #size-cells =3D <1>; + dma-ranges =3D <0x00000000 0x40000000 0x80000000>; + #interconnect-cells =3D <1>; + }; + spi0: spi@1c68000 { compatible =3D "allwinner,sun8i-h3-spi"; reg =3D <0x01c68000 0x1000>; --=20 2.42.1