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Received: from AS8PR04MB8676.eurprd04.prod.outlook.com (2603:10a6:20b:42b::10) by DB9PR04MB8139.eurprd04.prod.outlook.com (2603:10a6:10:248::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8114.20; Thu, 31 Oct 2024 07:57:12 +0000 Received: from AS8PR04MB8676.eurprd04.prod.outlook.com ([fe80::28b2:de72:ad25:5d93]) by AS8PR04MB8676.eurprd04.prod.outlook.com ([fe80::28b2:de72:ad25:5d93%6]) with mapi id 15.20.8114.015; Thu, 31 Oct 2024 07:57:11 +0000 From: Richard Zhu To: l.stach@pengutronix.de, bhelgaas@google.com, lpieralisi@kernel.org, kw@linux.com, manivannan.sadhasivam@linaro.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, frank.li@nxp.com, s.hauer@pengutronix.de, festevam@gmail.com Cc: imx@lists.linux.dev, kernel@pengutronix.de, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Zhu Subject: [PATCH v5 03/10] PCI: imx6: Fetch dbi2 and iATU base addesses from DT Date: Thu, 31 Oct 2024 16:06:48 +0800 Message-Id: <20241031080655.3879139-4-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20241031080655.3879139-1-hongxing.zhu@nxp.com> References: <20241031080655.3879139-1-hongxing.zhu@nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SG2PR04CA0184.apcprd04.prod.outlook.com (2603:1096:4:14::22) To AS8PR04MB8676.eurprd04.prod.outlook.com (2603:10a6:20b:42b::10) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS8PR04MB8676:EE_|DB9PR04MB8139:EE_ X-MS-Office365-Filtering-Correlation-Id: e560d1e8-bd83-4cf1-fcf0-08dcf981a05f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|52116014|376014|1800799024|366016|921020|38350700014; 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charset="utf-8" Since dbi2 and atu regs are added for i.MX8M PCIes. Fetch the dbi2 and iATU base addresses from DT directly, and remove the useless codes. Signed-off-by: Richard Zhu --- drivers/pci/controller/dwc/pci-imx6.c | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller= /dwc/pci-imx6.c index 73cb69ba8933..d21f7d2e79dc 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -1114,7 +1114,6 @@ static int imx_add_pcie_ep(struct imx_pcie *imx_pcie, struct platform_device *pdev) { int ret; - unsigned int pcie_dbi2_offset; struct dw_pcie_ep *ep; struct dw_pcie *pci =3D imx_pcie->pci; struct dw_pcie_rp *pp =3D &pci->pp; @@ -1124,25 +1123,6 @@ static int imx_add_pcie_ep(struct imx_pcie *imx_pcie, ep =3D &pci->ep; ep->ops =3D &pcie_ep_ops; =20 - switch (imx_pcie->drvdata->variant) { - case IMX8MQ_EP: - case IMX8MM_EP: - case IMX8MP_EP: - pcie_dbi2_offset =3D SZ_1M; - break; - default: - pcie_dbi2_offset =3D SZ_4K; - break; - } - - pci->dbi_base2 =3D pci->dbi_base + pcie_dbi2_offset; - - /* - * FIXME: Ideally, dbi2 base address should come from DT. But since only = IMX95 is defining - * "dbi2" in DT, "dbi_base2" is set to NULL here for that platform alone = so that the DWC - * core code can fetch that from DT. But once all platform DTs were fixed= , this and the - * above "dbi_base2" setting should be removed. - */ if (device_property_match_string(dev, "reg-names", "dbi2") >=3D 0) pci->dbi_base2 =3D NULL; =20 --=20 2.37.1