From patchwork Thu Jul 25 07:35:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhu X-Patchwork-Id: 1964616 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:40f1:3f00::1; helo=sy.mirrors.kernel.org; envelope-from=linux-pci+bounces-10772-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org [IPv6:2604:1380:40f1:3f00::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4WV3KY50wyz1ybY for ; Thu, 25 Jul 2024 18:03:13 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 3020DB214E7 for ; Thu, 25 Jul 2024 08:03:13 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EABCA173344; Thu, 25 Jul 2024 08:02:59 +0000 (UTC) X-Original-To: linux-pci@vger.kernel.org Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 315CD16F84C; Thu, 25 Jul 2024 08:02:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=92.121.34.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721894579; cv=none; b=n1ElQayH8KGxEMaKu94O2pi8nbvr2Ggk99VjKk5+yzaDdewIhyRlsgX7qRlu8+/7t6EWhfwXeuxgx+PQQo82fiJiPDt2/S3wz5fkU7RmvwAx/rRbp3vja5BXzVU0RsMicet3ZUKcabKo9MZ9towu2tQWO66tqWbTlEYWhuarmcI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721894579; c=relaxed/simple; bh=DG2PMLrEpeKubb6dFu3Q1gHSgLKjjwKlFmQKFMY+UYQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=iDfJeihgyMw69OuO4QqdZ60yKcjY31hU66GFepfVRVPWNYq3DKsx4I94xm7CxOyWGjBCO5ixSunKjBfPa6IT7EtXHvawtoa88Wp32ipidnOWI3T17zUsCbfhHm9+g4aMKFzZjSivgNVemiKCw1m5RnxZcb5RbNIieqB45QrR8Mc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; arc=none smtp.client-ip=92.121.34.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id BC0DC2004FE; Thu, 25 Jul 2024 09:54:20 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 8357B200515; Thu, 25 Jul 2024 09:54:20 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id E094A1802183; Thu, 25 Jul 2024 15:54:18 +0800 (+08) From: Richard Zhu To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, l.stach@pengutronix.de Cc: hongxing.zhu@nxp.com, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, imx@lists.linux.dev Subject: [PATCH v3 4/4] dts: arm64: imx8mm: Add dbi2 and atu reg for i.MX8MM PCIe EP Date: Thu, 25 Jul 2024 15:35:16 +0800 Message-Id: <1721892916-5782-5-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1721892916-5782-1-git-send-email-hongxing.zhu@nxp.com> References: <1721892916-5782-1-git-send-email-hongxing.zhu@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Add dbi2 and iatu reg for i.MX8MM PCIe EP. For i.MX8M PCIe EP, the dbi2 and atu addresses are pre-defined in the driver. This method is not good. In commit b7d67c6130ee ("PCI: imx6: Add iMX95 Endpoint (EP) support"), Frank suggests to fetch the dbi2 and atu from DT directly. This commit is preparation to do that for i.MX8MM PCIe EP. These changes wouldn't break driver function. When "dbi2" and "atu" properties are present, i.MX PCIe driver would fetch the according base address from DT directly. If only two reg properties are provided, i.MX PCIe driver would falls back to the old method. Signed-off-by: Richard Zhu --- arch/arm64/boot/dts/freescale/imx8mm.dtsi | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi index 9535dedcef59..4de3bf22902b 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi @@ -1375,9 +1375,11 @@ pcie0: pcie@33800000 { pcie0_ep: pcie-ep@33800000 { compatible = "fsl,imx8mm-pcie-ep"; - reg = <0x33800000 0x400000>, - <0x18000000 0x8000000>; - reg-names = "dbi", "addr_space"; + reg = <0x33800000 0x100000>, + <0x18000000 0x8000000>, + <0x33900000 0x100000>, + <0x33b00000 0x100000>; + reg-names = "dbi", "addr_space", "dbi2", "atu"; num-lanes = <1>; interrupts = ; interrupt-names = "dma";