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Fri, 11 Aug 2023 10:39:04 -0700 (PDT) Date: Fri, 11 Aug 2023 10:39:02 -0700 From: Drew Fustini To: Jisheng Zhang Cc: Thomas Gleixner , Marc Zyngier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Palmer Dabbelt , Paul Walmsley , Albert Ou , Daniel Lezcano , Guo Ren , Fu Wei , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org Subject: Re: [PATCH v3 0/8] Add Sipeed Lichee Pi 4A RISC-V board support Message-ID: References: <20230617161529.2092-1-jszhang@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230617161529.2092-1-jszhang@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230811_103907_210026_B0EFE92E X-CRM114-Status: GOOD ( 16.78 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Sun, Jun 18, 2023 at 12:15:21AM +0800, Jisheng Zhang wrote: > Sipeed's Lichee Pi 4A development board uses Lichee Module 4A core > module which is powered by T-HEAD's TH1520 SoC. Add minimal device > tree files for the core module and the development board. > > Support basic uart/gpio/dmac drivers, so supports booting to a basic > shell. > > NOTE: the thead cpu reset dt-binding and DT node are removed in v3. This > makes secondary CPUs unable to be online. However, minimal th1520 > support is better than nothing. And the community has been working on > and will work on the cpu reset dt-binding, for example, Conor, Guo and > Jessica are discussing about it, I have seen valuable comments and > inputs from them. I believe we can add back cpu reset in next > development window. I'm interested in starting the secondary cpus on mainline. It seems that that "thead,reset-sample" is already implemented in upstream OpenSBI in lib/utils/reset/fdt_reset_thead.c and the issue is getting the dt-binding accepted. Is that correct? It looks like you've tried to restart the discussion on the DT list [1] so I hope that the DT maintainers will give their perspective. Thank you, Drew [1] https://lore.kernel.org/all/ZNURXBKkYdiWLanf@xhacker/ _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv