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Mon, 27 Feb 2023 06:41:25 -0800 (PST) Message-ID: Date: Mon, 27 Feb 2023 15:41:23 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH v1 3/3] arch/arm: dts: introduce meson-a1 device tree To: Dmitry Rokosov Cc: Alexey Romanov , robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, neil.armstrong@linaro.org, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, linus.walleij@linaro.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@sberdevices.ru References: <20230222115020.55867-1-avromanov@sberdevices.ru> <20230222115020.55867-4-avromanov@sberdevices.ru> <20230227143929.h2lppesdiaj7l3gn@CAB-WSD-L081021> Content-Language: en-US From: Krzysztof Kozlowski In-Reply-To: <20230227143929.h2lppesdiaj7l3gn@CAB-WSD-L081021> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230227_064133_019462_10ACD7E6 X-CRM114-Status: GOOD ( 19.32 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 27/02/2023 15:39, Dmitry Rokosov wrote: > Hello Krzysztof! > > On Thu, Feb 23, 2023 at 10:09:25AM +0100, Krzysztof Kozlowski wrote: > > [...] > >>>> describes following compontents: CPU, GIC, IRQ, Timer, UART, >>>> PIN controller. It's capable of booting up into >>>> the serial console. >>>> >>>> This is based on arm64 version of meson-a1.dtsi. >>>> >>>> Signed-off-by: Alexey Romanov >>>> --- >>>> arch/arm/boot/dts/meson-a1.dtsi | 151 ++++++++++++++++++++++++++++++++ >>> >>> There is such file and there is such DTS/hardware support. I don't see >>> any reason why entire DTSI should be duplicated. What's more, your >>> commit does not explain it - does not justify duplication. >> >> One more comment - I think you just added dead code. It's >> uncompilable/untestable. Otherwise, please share how to build this DTSI >> without DTS. > > You are right, Alexey doesn't provide any exact *.dts file for any > board, and *.dtsi file should be included somewhere, otherwise this is > dead code. > Unfortunately, our internal board *.dts file is useless for kernel > community, cause there is not any chance to burn locally compiled kernel > to our product due to secureboot protection. > But I think there is one possible option. We have reference Amlogic > boards somewhere in the office. So we can test 32-bit configuration on > it and prepare proper *.dts file for that. What do you think, it > reasanoble? You just need to provide valid board which works in 32-bit mode. Anyway duplicating DTSI is a no-go and we do not do it in other platforms. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel