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Thu, 14 Jul 2022 03:55:23 -0700 Envelope-to: shubhrajyoti.datta@gmail.com, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, gregkh@linuxfoundation.org Received: from [10.254.241.52] (port=43806) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1oBwV9-000FAi-Eg; Thu, 14 Jul 2022 03:55:23 -0700 Message-ID: <50bfd52b-6fe0-546f-9121-0145aac91289@xilinx.com> Date: Thu, 14 Jul 2022 12:55:21 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH 1/2] dt-bindings: serial: pl011: Add 'arm,xlnx-uart' Content-Language: en-US To: Shubhrajyoti Datta , Rob Herring , Krzysztof Kozlowski CC: Shubhrajyoti Datta , "linux-serial@vger.kernel.org" , "devicetree@vger.kernel.org" , "gregkh@linuxfoundation.org" , Srinivas Goud References: From: Michal Simek In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 388a5e03-147b-48ee-7392-08da65875c59 X-MS-TrafficTypeDiagnostic: MW4PR02MB7426:EE_ X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jul 2022 10:55:26.9296 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 388a5e03-147b-48ee-7392-08da65875c59 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.62.198];Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: BN1NAM02FT022.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR02MB7426 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Rob and Krzysztof, On 6/14/22 14:21, Shubhrajyoti Datta wrote: >>> > > >> >> No, I don't know what the differences are in your h/w. You have ID >> registers, but changed the IP and didn't change the ID registers? How >> has the IP changed? >> > > The IP is not changed and the ID registers are not updated. > The limitation is coming from the AXI port that the IP is connected to. > The axi port is allowing only the 32 bit access. > The same information will be updated in the Versal TRM. Can you please give us your recommendation how to process with this? Thanks, Michal