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Mon, 24 Jan 2022 05:28:14 -0800 From: Kartik To: , , , , , , , CC: Subject: [PATCH v2] arm64: tegra: Enable additional UART for Jetson AGX Orin Date: Mon, 24 Jan 2022 19:00:04 +0530 Message-ID: <1643031004-4649-1-git-send-email-kkartik@nvidia.com> X-Mailer: git-send-email 2.7.4 X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 6e4fab38-4c94-42c6-22d0-08d9df3d62ff X-MS-TrafficTypeDiagnostic: BY5PR12MB3650:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:370; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:12.22.5.238;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(4636009)(36840700001)(40470700004)(46966006)(47076005)(40460700003)(336012)(36860700001)(107886003)(508600001)(7696005)(2616005)(5660300002)(26005)(86362001)(36756003)(426003)(4326008)(7049001)(82310400004)(83380400001)(356005)(81166007)(8676002)(70206006)(70586007)(110136005)(6666004)(186003)(2906002)(8936002)(316002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jan 2022 13:28:19.5116 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6e4fab38-4c94-42c6-22d0-08d9df3d62ff X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.238];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT061.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB3650 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: kartik On Jetson AGX Orin, additional UART (UART-A) is available on 40-pin header. Enable UART-A for Jetson AGX Orin and change the compatible string to "nvidia,tegra194-hsuart". This enables serial-tegra driver, which supports HW flow control and is the preffered driver for higher baud rates. Signed-off-by: kartik --- v2 -> v1: updated commit message --- arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts index efbbb87..4eda238 100644 --- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts @@ -11,6 +11,7 @@ aliases { mmc3 = "/bus@0/mmc@3460000"; serial0 = &tcu; + serial1 = &uarta; }; chosen { @@ -18,6 +19,13 @@ stdout-path = "serial0:115200n8"; }; + bus@0 { + serial@3100000 { + compatible = "nvidia,tegra194-hsuart"; + status = "okay"; + }; + }; + serial { status = "okay"; }; -- 2.7.4