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[84.226.167.205]) by smtp.gmail.com with ESMTPSA id y8sm3921881wmi.46.2021.03.05.02.55.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 05 Mar 2021 02:55:53 -0800 (PST) Subject: Re: [RFT PATCH v3 25/27] tty: serial: samsung_tty: Add earlycon support for Apple UARTs To: Hector Martin , linux-arm-kernel@lists.infradead.org Cc: Marc Zyngier , Rob Herring , Arnd Bergmann , Olof Johansson , Mark Kettenis , Tony Lindgren , Mohamed Mediouni , Stan Skowronek , Alexander Graf , Will Deacon , Linus Walleij , Mark Rutland , Andy Shevchenko , Greg Kroah-Hartman , Jonathan Corbet , Catalin Marinas , Christoph Hellwig , "David S. Miller" , devicetree@vger.kernel.org, linux-serial@vger.kernel.org, linux-doc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Arnd Bergmann References: <20210304213902.83903-1-marcan@marcan.st> <20210304213902.83903-26-marcan@marcan.st> From: Krzysztof Kozlowski Message-ID: Date: Fri, 5 Mar 2021 11:55:53 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: <20210304213902.83903-26-marcan@marcan.st> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210305_105602_993721_9AE93E96 X-CRM114-Status: GOOD ( 18.72 ) 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 04/03/2021 22:39, Hector Martin wrote: > Earlycon support is identical to S3C2410, but Apple SoCs also need > MMIO mapped as nGnRnE. This is handled generically for normal drivers > including the normal UART path here, but earlycon uses fixmap and > runs before that scaffolding is ready. > > Since this is the only case where we need this fix, it makes more > sense to do it here in the UART driver instead of introducing a > whole fdt nonposted-mmio resolver just for earlycon/fixmap. > > Suggested-by: Arnd Bergmann > Signed-off-by: Hector Martin > --- > drivers/tty/serial/samsung_tty.c | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel