From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=116.202.128.144 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792580897; b=A711ztQ7xN49l7z6ngWfvxjBRwWW3vgeumUkTaHfXd2x5gyWRKTfTTrEXGWuJa+kaR3q JDfjtj3aAeyyoRv1uVTn1Ns0CoVeNm7IX3B17buZ9vnMwCzo8/OnzJynJpvmwMWuQImzE 3bJLYDygvLBu9MNlh0BjHkJi4WrRf/dHu3Qrt5PoMeM/DJNW7+TkhvCkXJDGZkmpVku6k x4zZEm9VfYsHQLEpQlEWNwxplqQOu+4q/Kl7QMb7xDmUbBRsBZCDPt1AZwVzUT+wb8io5 XY9xrhc46RAkKi6bNDPpihfp0A3OK4cCSxW8sD7NeR4iFmuTfneXa66ey8nFm7nGjrA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792580897; h=DMARC-Filter:DKIM-Signature:Received:Message-ID:Date:MIME-Version: User-Agent:Subject:To:Cc:References:Content-Language:From:In-Reply-To: Content-Type:Content-Transfer-Encoding; bh=Lv7Omi5n8k/bxt6p6Ood58jQjPgelYC54rFdKIGqlDM=; b=B8TXBzmYBphq4IHiV3wViy8iBYePgMF4pyye7HwB4e+5XiQVeHasXFNoknnJl/XseA3E v1/P/f7d+ftr34YN7H/SntsnDzJ5t0jPmo0YcZypAURq1P7BLbTX+b9kqOhJxTmXp2PP8 5i9l36b5W59LDGPik0C+3YwtmCzHytklrRV+s6ZEMoJ9tYHoRpoLtbstQuuE5HjIMNS2E Zi3Q0d7W24NybNorKje4ujnActH6CffrKME4LFiTaDTwQCNRhud0yBhBFrpdJ2SNYwWhE beLx12/qB/IUKtdbo7NeUll9psjyvVudYzsuOeSpNSNyxNGgeb5lUqC7TY2EwZiXyng== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=freeshell.de; spf=pass smtp.mailfrom=freeshell.de; dkim=pass header.d=freeshell.de header.i=@freeshell.de header.a=rsa-sha256 header.s=s2025 header.b=RU6148x8; arc=none smtp.remote-ip=116.202.128.144 Received: from freeshell.de (freeshell.de [116.202.128.144]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2B90606A31D; Wed, 21 Oct 2026 11:08:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org E2B90606A31D Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=freeshell.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=freeshell.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=freeshell.de header.i=@freeshell.de header.a=rsa-sha256 header.s=s2025 header.b=RU6148x8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freeshell.de; s=s2025; t=1792580859; bh=Lv7Omi5n8k/bxt6p6Ood58jQjPgelYC54rFdKIGqlDM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=RU6148x8F8xQtgBEgbPeOFO/r4kqbrnkMiqhES+lxGo7EhBo4HEHYbI5PwrGnoLbg lqngIyqKCLwBZOQKovwE5liPCfPLgURH4u6qrwu0n1EDuy6vSMWb/Y6AWXO1Y2s4KY jD65I13FboQh/3dhd6PLXPRkFNOf/btq1yfHaj8dzj+fBYtQwYvziKxp073/vNt5Is EmGl1FhB0tU92jWSLuDq70HFbppfvzq2iB2ckGhrYacamUUbq0HE+0ZpUsjda5I1Zx BudGOG3uFTjx0qHf2gU7y2xQytgNo2+oZHcotJiT8sQJG1WbeaV7/RDQ00LsRf03FO ZvXrq/m3neQ7A== Received: from [IPV6:2605:59ca:364f:d400:1b91:6b30:22c2:fffc] (unknown [IPv6:2605:59ca:364f:d400:1b91:6b30:22c2:fffc]) (Authenticated sender: e) by freeshell.de (Postfix) with ESMTPSA id 90006B2219EB; Wed, 21 Oct 2026 13:07:36 +0200 (CEST) Message-ID: Date: Wed, 21 Oct 2026 04:07:34 -0700 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 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] riscv: dts: spacemit: mark K1 board boot devices bootph-pre-ram To: Hung-Chun Tseng , Yixun Lan Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org References: <20261017180141.3477743-3-alan.tseng.cs@gmail.com> <13d6926f-f085-4214-8051-7bf7b5d92b67@freeshell.de> <20261019141752.2077207-1-alan.tseng.cs@gmail.com> <20261021083425-GKA125937@kernel.org> <20261021110001.2905669-1-alan.tseng.cs@gmail.com> Content-Language: en-US From: E Shattow In-Reply-To: <20261021110001.2905669-1-alan.tseng.cs@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/21/26 03:59, Hung-Chun Tseng wrote: > Hi Yixun, > > Yixun Lan wrote: >> but for bootph-pre-ram, isn't it about the DT nodes which needed before DDR >> initialization in SPL stage, and should have nothing to do with BootROM? > > Thanks for checking with the vendor. I agree, the schema defines it as > "the phase that sets up SDRAM". > > I also need to correct what I said earlier: the EEPROM is not only > used to tell the boards apart. It also holds the board's DRAM > configuration (number of chip selects, data rate and DDR type), which > has to be read before DRAM can be trained [1]. > > So in v3 I'd like to keep the i2c2 and EEPROM tags, and also tag the > EEPROM on the OrangePi RV2 and R2S, which I missed in v2. > > E, does that address your concern? Yes, as based on published documentation and confirmed by vendor, that sounds good to me. > > [1] board/spacemit/k1/spl.c in U-Boot, ddr_early_init() -> read_ddr_info() > > Thanks, > Hung-Chun Thank you Hung-Chun and Yixun, -E