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Wed, 27 Oct 2021 07:46:12 -0700 (PDT) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id F18231FF96; Wed, 27 Oct 2021 15:46:11 +0100 (BST) References: <20211013010120.96851-1-sjg@chromium.org> <20211013010120.96851-6-sjg@chromium.org> User-agent: mu4e 1.7.4; emacs 28.0.60 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: =?utf-8?Q?Fran=C3=A7ois?= Ozog Subject: Re: [PATCH 05/16] arm: qemu: Add a devicetree file for qemu_arm64 Date: Wed, 27 Oct 2021 15:44:08 +0100 In-reply-to: Message-ID: <87v91iwmoc.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::12f; envelope-from=alex.bennee@linaro.org; helo=mail-lf1-x12f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Albert Aribaud , Tom Rini , Heiko Schocher , Neil Armstrong , qemu-devel@nongnu.org, Andre Przywara , Simon Glass , Ilias Apalodimas , Christian Hewitt , Kever Yang , Rick Chen , U-Boot Mailing List , Jagan Teki , Sean Anderson , Tuomas Tynkkynen , Fabio Estevam , Tim Harvey , Peter Robinson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Fran=C3=A7ois Ozog writes: > Hi Simon > > The only place I could agree with this file presence is in the documentat= ion directory, not in dts. It creates a mental picture for the reader > an entirely bad mind scheme around Qemu and DT. > > And even in a documentation directory I would place a bug warning: don=E2= =80=99t use this with any kernel , Qemu generates a DT dynamically > based on cpu, memory and devices specified at the command line. Certainly for the arm, aarch64 and riscv "virt" machines you should always use the QEMU generated DTB. I'm not entirely clear what a qemu_arm and qemu_arm64 def targets are meant to be in this context. --=20 Alex Benn=C3=A9e