From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=74.125.82.46 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794104879; b=MkOjWuXACE/eYaAKZjWHS3KnUwhO7SjC4cdrvYafKBxzsReG5hVSh/Ktu2AKju3hwomI aqZiXcoq8d2OTlKkaxepANW0hyivEfhjiy167qrzWL57ctXdI57rLIug2/4asK5ZMhdIG rlBwvgL9Qix3Gm7D8+0B0zOxkCHeVyUTG3wrfsAJ/3DqDgEIlA5WkXmf+g+qLZmGi2lcp gWRbdZgqVXnOHVvLIRNJkT6znK9QfpzRHET2WKplEaWUsNm4pq6zToQS+lp0m1wB+8Vog Iq3mEfkm2Bw7gLevZXzT3nYemiUPm5GAa9m8jxsQdEjYODXrdz6gipo+823AszFuqDg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794104879; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; bh=CgFyMsoiKO2B1HX2AvfFumGFOpktUiaDt0kSWOji51M=; b=EQqlSxJKNf3reiiTcdFe/IH3+DNtQXwHS34+mEFC1GbSiXuwm8xtQsLEys4l+X0LFoxP QeQ6x+nASPNaohckqNiAz5TEtG3/wutYPFGkLuE04Z3zSVRUczFRtqME3Y+s9GTDJpDtU yiNvheoXER1CSYr7kCGhi/+6NQ6G9bFt37ALpVHqJdxdLp+IMRnbr/NM2AMxj/OWpJCF8 i27fUtfGXtljJAmGRwaB6LRV/FUi24RBraPKLZ8g7TmlFOQwbhFZsp1Ef78cfQmr9AcDG 7bLrUI36MqPsY2RPJDkwcr1VLiVcwlGXAVp/nxtZh5a405AhWpIox8AZEVsU2gCn7mA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=Crtt9KFl; arc=none smtp.remote-ip=74.125.82.46 Received: from mail-dl1-f46.google.com (mail-dl1-f46.google.com [74.125.82.46]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA16F606A31C for ; Sun, 8 Nov 2026 02:27:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org DA16F606A31C Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=Crtt9KFl Received: by mail-dl1-f46.google.com with SMTP id a92af1059eb24-170135e43c7so146706c88.0 for ; Sat, 07 Nov 2026 18:27:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1794104878; x=1794709678; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=CgFyMsoiKO2B1HX2AvfFumGFOpktUiaDt0kSWOji51M=; b=Crtt9KFlMLRjcguZk1VYPvhTgDNZMElzf0tf141OxRDD0nRpz/y1O2me5bx5zPEHRw DOcFer5e04/3lH3hXFl06ApuJDKLG77CFSixsb0t6MlRt5PwYzLnVHXQt/lmhfJSUCov 8/IoZwOneMKYGudlQKvHL0tGwwIWFHD5bmHdaSx2Aca7D6KfUw3p0kAAsMbidPHSH9K6 Vtd7DUJBiDizA1z7P9/HbJj4YxUHaR6Y20nKVwijj6Y8lmutdnjW1IMT8sE8avgxaW3d 2oCXfkkFNdLeVsQOzUyKG8TFQRCGvgtR9ixvehQM1zvDECpHHm1ePN1spXa/oKXtzuE9 +A7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794104878; x=1794709678; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=CgFyMsoiKO2B1HX2AvfFumGFOpktUiaDt0kSWOji51M=; b=vkETI+fNjmGhs0N1KMxwX7lbmI1XLi1675mELLsOfCVO7PiupipYIqb3P/z33wzgGn EIf5qbRb/3B9VzNOeQXgbZu163nvXGezjQ83ed/qeWfntywZZ1RaRDdIjA7Gph4RxnHe kFedEJW1p+PweQCIgvBYCB7dOoyv4u5Qp5p/nwjw11Dqgggn+Yr6Irm8ieDE4n+Esd61 i4kwrFFDwmhjLuEUdyVNEqj5FTpa0XCUT1Yy7Be2XnNz200S/pXO0Z8akntfLjJhipc8 //NLwhjpJP56DyFcTHysivsabwxAsFTN5i/u7X3uWbPBVBQo7iqYt1tyDio6S/WTIXP4 i7cw== X-Forwarded-Encrypted: i=1; AKwUvBzcCojpOR7E65WZOyNak1eGIzGjtP0wkew+gSB8CWSO5UlIJ/clcDrlB6Bqp2TseNn0BE/U/uoqFi92yXk=@vger.kernel.org X-Gm-Message-State: APuU4Z9yCuHW4ZzHt5l2kBCqXBo3K4H7Wgg7c9QI9bzFiOBwlviirV/t ekgyIv81P/N7J5NpHcJtsF4yPmY3HA4L/EE3mKEqEOvbfz+nWyvwIYp/ X-Gm-Gg: AYBFou31/Gmqcl+DUeFr/NKjNYF/3B044JuWsdmKtvONpr2ffyEUjy/5GqGKCm0fGI5 8cwB2fxdHnCINCbnz32fdkQQEXKYbEoosiqn8uGFA8m3Ts2t9GF6p5CTh/X07YU6rhY53dHyWkV ZVeQFTzG5iDdprBlVRD9mY5lIyi9QYYRKqo4NWmt1zQyvlZBS5Mk6bRCG4fMb/sZX34ofvysMI/ CDt1WlgioSxzHIJcs9ssUZTq4vZBUicyAPgaa+UMP1Qfk/mY5eIu0gkEE1moqMHgarNXc9/zQ76 odiTLq1sxFCnsC0T8yxxIq8I3smLPepZ/h1FxD1o5qcgdcDhUsu1nt1KwRAoYQELrydVnyHSIhV scSEE+RCc+DpuaUbeypvIzZnpnS1fosR/b6oDuVxxL7LaeHVTDsfNAI9Z2uMNjf17rOBvAyOXMF NljQiX34UHlPhCqp84dnCgQrwWtbLrmGuLtSKIbzcRvsfp6ttrYBkwvAnsFX7vVRxln8Gk5yFBN Op4Upmqyp/l7PQPmf+PNSYvLDdpjW1XrIC5eJgDXLfJhXUOugd4dtNnjtauT4VkJUN+pJle31Bm l13DNU/WSNxPmxREf1Jv X-Received: by 2002:a05:7022:b0c6:b0:190:d0d9:3110 with SMTP id a92af1059eb24-1b39ff2dademr463410c88.45.1794104877934; Sat, 07 Nov 2026 18:27:57 -0800 (PST) Received: from debian ([169.211.140.146]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1b3771ea85bsm2390172c88.18.2026.11.07.18.27.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Nov 2026 18:27:57 -0800 (PST) Date: Sat, 7 Nov 2026 21:27:32 -0500 From: Kwanghoon Son To: Conor Dooley Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Miguel Ojeda , Boqun Feng , Gary Guo , =?iso-8859-1?Q?Bj=F6rn?= Roy Baron , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Daniel Almeida , Tamir Duberstein , Alexandre Courbot , Onur =?iso-8859-1?Q?=D6zkan?= , Thomas Gleixner , Radu Rendec , Paul Walmsley , Samuel Holland , Palmer Dabbelt , Daniel Lezcano , Anup Patel , Albert Ou , Alexandre Ghiti , Greg Kroah-Hartman , Jiri Slaby , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, Paul Walmsley , linux-riscv@lists.infradead.org, linux-serial@vger.kernel.org Subject: Re: [PATCH RFC 12/12] MAINTAINERS: Add Bouffalo Lab BL808 support Message-ID: References: <20261029-rust-bl808-console-v1-0-b736ee920078@gmail.com> <20261029-rust-bl808-console-v1-12-b736ee920078@gmail.com> <20261029-spyglass-evasion-772697094cb9@spud> <20261029-amuser-savior-6a6ab062f471@spud> <20261030-slider-finished-360b10521e0b@spud> <20261102-throng-botanical-b244058ecc37@spud> <20261106-dislike-despise-91106ac848dd@spud> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261106-dislike-despise-91106ac848dd@spud> On Fri, Nov 06, 2026 at 06:00:13PM +0000, Conor Dooley wrote: > > Cool. One thing that I noticed, and felt it was a bit odd actually is > that the uarts are fed directly from the crystal oscillator. Jisheng had > that in his original series though so I assume that's actually how the > hardware works? I carried over the direct crystal reference from Jisheng's series. But will change in v2. UART3's baud clock passes through a mux and divider. The current M1s firmware selects the 40 MHz crystal via MM_XCLK, while the APB register interface runs at 160 MHz. Following your feedback, the UART node in my v2 work now describes complete form of clock itself. two clock inputs: clocks = <&uart_apb>, <&uart_baud>; clock-names = "apb", "baud"; uart_apb: clock-uart-apb { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <160000000>; }; The fixed-clock providers currently reflect the firmware settings. I'll add proper clock-controller support before submitting the DTS. Best regards, kwang.