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dmarc=none action=none header.from=nxp.com; Received: from HE1PR0402MB3371.eurprd04.prod.outlook.com (2603:10a6:7:85::27) by HE1PR04MB3275.eurprd04.prod.outlook.com (2603:10a6:7:1a::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3999.32; Tue, 6 Apr 2021 08:58:35 +0000 Received: from HE1PR0402MB3371.eurprd04.prod.outlook.com ([fe80::5df8:1a69:47c3:44fc]) by HE1PR0402MB3371.eurprd04.prod.outlook.com ([fe80::5df8:1a69:47c3:44fc%3]) with mapi id 15.20.3999.032; Tue, 6 Apr 2021 08:58:35 +0000 From: Zhiqiang Hou To: linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, lorenzo.pieralisi@arm.com, robh+dt@kernel.org, bhelgaas@google.com, shawnguo@kernel.org, leoyang.li@nxp.com, gustavo.pimentel@synopsys.com Cc: minghuan.Lian@nxp.com, mingkai.hu@nxp.com, roy.zang@nxp.com, Hou Zhiqiang Subject: [PATCHv4 2/6] dt-bindings: pci: layerscape-pci: Add a optional property big-endian Date: Tue, 6 Apr 2021 17:04:45 +0800 Message-Id: <20210406090449.36352-3-Zhiqiang.Hou@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210406090449.36352-1-Zhiqiang.Hou@nxp.com> References: <20210406090449.36352-1-Zhiqiang.Hou@nxp.com> X-Originating-IP: [119.31.174.73] X-ClientProxiedBy: HK2PR06CA0001.apcprd06.prod.outlook.com (2603:1096:202:2e::13) To HE1PR0402MB3371.eurprd04.prod.outlook.com (2603:10a6:7:85::27) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.73) by HK2PR06CA0001.apcprd06.prod.outlook.com (2603:1096:202:2e::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3999.27 via Frontend Transport; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Hou Zhiqiang This property is to indicate the endianness when accessing the PEX_LUT and PF register block, so if these registers are implemented in big-endian, specify this property. Signed-off-by: Hou Zhiqiang Acked-by: Rob Herring --- V4: - Rebased against the latest code base Documentation/devicetree/bindings/pci/layerscape-pci.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt index 6d898dd4a8e2..d633c1fabdb4 100644 --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt @@ -40,6 +40,10 @@ Required properties: of the data transferred from/to the IP block. This can avoid the software cache flush/invalid actions, and improve the performance significantly. +Optional properties: +- big-endian: If the PEX_LUT and PF register block is in big-endian, specify + this property. + Example: pcie@3400000 { -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel