From mboxrd@z Thu Jan 1 00:00:00 1970 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 96D77C3DA5D for ; Thu, 25 Jul 2024 07:55:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=MsPcscwottIbUH07wJ9hQgnpr5I1XTV21LEKJepRFFg=; b=13l/GHKtVH1dPnRE6L41zxudlh bt2GjQhG7L1UbUt4CTDnrZH3ubBJsMGAP4GH2yfdh2ZLSkE9ASgZkppmEaBJTZoqF5foeLRRIP5Vs cJ+gC/sBuv8OyP2WyB4aakg1m+BOb3XqeaqJ9yaAswt3UH4um76Y+IDQQqmHUsfUqHdUXjuR/thzT DPJwztKeLnrNFje3Rv7enNHzqJmm/cRX+0NVWhPbqEIaYsDs64o4AMTt5Az3pYNUSL+cOGYtsGZft LzsAbQnk7vcz+h9OsJO7PjEeWcmGzFvn9WZaGAvid1kI2rOFf9UI7KG+qt/uHYgxd6/IUZWWc6hzz rqOH3R6g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sWtJw-00000000FHp-3DLL; Thu, 25 Jul 2024 07:55:28 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sWtIr-00000000Ezz-0dmo for linux-arm-kernel@lists.infradead.org; Thu, 25 Jul 2024 07:54:23 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 9C0BD200512; Thu, 25 Jul 2024 09:54:19 +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 63A0A2004FE; Thu, 25 Jul 2024 09:54:19 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id C31F8181D0FA; Thu, 25 Jul 2024 15:54:17 +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 3/4] dts: arm64: imx8mp: Add dbi2 and atu reg for i.MX8MP PCIe EP Date: Thu, 25 Jul 2024 15:35:15 +0800 Message-Id: <1721892916-5782-4-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240725_005421_528158_39D9D349 X-CRM114-Status: GOOD ( 11.04 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add dbi2 and iatu reg for i.MX8MP 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.MX8MP 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/imx8mp.dtsi | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index 603dfe80216f..53748227db10 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2125,8 +2125,11 @@ pcie: pcie@33800000 { pcie_ep: pcie-ep@33800000 { compatible = "fsl,imx8mp-pcie-ep"; - reg = <0x33800000 0x000400000>, <0x18000000 0x08000000>; - reg-names = "dbi", "addr_space"; + reg = <0x33800000 0x100000>, + <0x18000000 0x8000000>, + <0x33900000 0x100000>, + <0x33b00000 0x100000>; + reg-names = "dbi", "addr_space", "dbi2", "atu"; clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, <&clk IMX8MP_CLK_HSIO_AXI>, <&clk IMX8MP_CLK_PCIE_ROOT>; -- 2.37.1