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Sat, 20 Sep 2025 19:52:22 +0000 (UTC) From: Bryan Hinton To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org Cc: angelogioacchino.delregno@collabora.com, conor+dt@kernel.org, krzk+dt@kernel.org, matthias.bgg@gmail.com, robh@kernel.org, daniel@makrotopia.org, Bryan Hinton Subject: [PATCH v2 2/2] arm64: dts: mediatek: mt7981b: OpenWrt One: set console UART to 115200 Date: Sat, 20 Sep 2025 14:50:51 -0500 Message-ID: <20250920195102.2733949-3-bryan@bryanhinton.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250920195102.2733949-1-bryan@bryanhinton.com> References: <20250920195102.2733949-1-bryan@bryanhinton.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: 43BJrrDByWVIPkQyTa670jQr2J9PN48K X-Proofpoint-ORIG-GUID: 43BJrrDByWVIPkQyTa670jQr2J9PN48K X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTIwMDE5NCBTYWx0ZWRfXxZxI4GWXbEsL Pin0amTzsu+Gfn5Yh1yU3KuNzcd0LQeLbaN2gUx5RQ+VO5p8Qwxfx59XeEeL2S4WhYC3n7faxVI xOYkgY7bUntNjSApyOMsc0xUfTwhv4FgpEJmuHpe+q0DnRWC12yH1kPaZqVKMBguWBO8XhOckMd WeKn1j7xiovRJfSCfhVggxDSAv4ejbgIF/yZRlMF2FyVbSbXPrAbYuFKlqWmbm6/8hbVkNgL4LE 1JmwvuTD3KG9rmc9j88fNoZe08nGcAmYrk11CnU2ULyHeEOf4SsCzwWzFMDyK57hMiq1mxYFQ= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-20_07,2025-09-19_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 mlxlogscore=999 clxscore=1030 bulkscore=0 mlxscore=0 suspectscore=0 phishscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2506270000 definitions=main-2509200194 X-JNJ: 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 Use the new uart0 label for the console and make the speed explicit by adding current-speed = <115200>. This keeps the DTS OS-agnostic: no bootargs or distribution-specific properties are added. Verification: Boot-tested with mainline Image+DTB via U-Boot on OpenWrt One (MT7981B). Serial console active at 115200 baud, and DTB decompile confirms serial0 alias and stdout-path set correctly. Changes in v2: - Dropped redundant hex value comment on current-speed (review feedback). Signed-off-by: Bryan Hinton --- .../arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts index 4f6cbb491287..638ed76107e3 100644 --- a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts +++ b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts @@ -8,8 +8,21 @@ / { compatible = "openwrt,one", "mediatek,mt7981b"; model = "OpenWrt One"; + aliases { + serial0 = &uart0; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + memory@40000000 { reg = <0 0x40000000 0 0x40000000>; device_type = "memory"; }; }; + +&uart0 { + status = "okay"; + current-speed = <115200>; +}; -- 2.51.0