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Sat, 20 Sep 2025 00:06:25 +0000 (UTC) From: bryan@bryanhinton.com 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, Bryan Hinton Subject: [PATCH 2/2] arm64: dts: mediatek: mt7981b: OpenWrt One: set console UART to 115200 Date: Fri, 19 Sep 2025 19:06:12 -0500 Message-ID: <20250920000619.2643457-3-bryan@bryanhinton.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250920000619.2643457-1-bryan@bryanhinton.com> References: <20250920000619.2643457-1-bryan@bryanhinton.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: EOBQ2Tfsbbv0mlTv9OXdHSO1BDfAAx94 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTE5MDIyNyBTYWx0ZWRfX/Rcqg8vC9N7t iDiMCiA6IZv1Fb3ANLChfzwDyNquQlBNjmH1F+bp28H2/EVnqpVN3DxGsm9OtWJlX8iNRHFQi3t ksBN3R+FTwupf1x674tE5kuGeTVn8XRZzK4wr9b35ZGQXgmDQTEw/FzZO+zOuoaULl+95ajrUXR pZxfb5SDyf5/+2Vr1rEQseAX9nZQNWxGxDmoYUyodvfIIwUZ0XqOtz3hnQrUE16KEaRroSR2Pac tzF/Dz84YcjJycv3yw+SH/Th0HHbH+K9VpLfIMDkdjZmQaMv1yiGgp1SjhnwvPMTsNaGVH1+U= X-Proofpoint-ORIG-GUID: EOBQ2Tfsbbv0mlTv9OXdHSO1BDfAAx94 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=2025-09-19_03,2025-09-19_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 spamscore=0 suspectscore=0 mlxscore=0 clxscore=1030 mlxlogscore=999 phishscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2506270000 definitions=main-2509190227 X-JNJ: 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 Content-Type: text/plain; charset="utf-8" Use the new uart0 label for the console and make the speed explicit by adding current-speed =3D <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. Signed-off-by: Bryan Hinton Reviewed-by: Daniel Golle --- .../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/ar= m64/boot/dts/mediatek/mt7981b-openwrt-one.dts index 4f6cbb491287..1d2c3a21019c 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 =3D "openwrt,one", "mediatek,mt7981b"; model =3D "OpenWrt One"; =20 + aliases { + serial0 =3D &uart0; + }; + + chosen { + stdout-path =3D "serial0:115200n8"; + }; + memory@40000000 { reg =3D <0 0x40000000 0 0x40000000>; device_type =3D "memory"; }; }; + +&uart0 { + status =3D "okay"; + current-speed =3D <115200>; /* 0x1c200 */ +}; --=20 2.51.0