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[85.214.156.166]) by gmr-mx.google.com with ESMTPS id e9e14a558f8ab-3d6de6babd1si4578675ab.0.2025.04.07.07.47.29 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 07 Apr 2025 07:47:29 -0700 (PDT) Received-SPF: pass (google.com: domain of nt@ilbers.de designates 85.214.156.166 as permitted sender) client-ip=85.214.156.166; Received: from qazaiaq.m.ilbers.de (host-80-81-17-52.static.customer.m-online.net [80.81.17.52]) (authenticated bits=0) by shymkent.ilbers.de (8.15.2/8.15.2/Debian-8+deb9u1) with ESMTPSA id 537ElPF3027870 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 7 Apr 2025 16:47:27 +0200 From: Natalia Tasci To: isar-users@googlegroups.com Cc: Natalia Tasci Subject: [PATCH] RPi: Enable serial console on RPi 4 B Date: Mon, 7 Apr 2025 16:47:23 +0200 Message-Id: <20250407144723.273275-1-nt@ilbers.de> X-Mailer: git-send-email 2.39.5 MIME-Version: 1.0 X-Spam-Status: No, score=-4.6 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2, RCVD_IN_RP_CERTIFIED,RCVD_IN_RP_RNBL,RCVD_IN_RP_SAFE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on shymkent.ilbers.de X-Original-Sender: nt@ilbers.de X-Original-Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of nt@ilbers.de designates 85.214.156.166 as permitted sender) smtp.mailfrom=nt@ilbers.de Precedence: list Mailing-list: list isar-users@googlegroups.com; contact isar-users+owners@googlegroups.com List-ID: X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= Tested with Raspbian Linux 12, baud rate of 115200 bps, 500 lines kernel log. Signed-off-by: Natalia Tasci --- meta-isar/recipes-bsp/bootconfig-rpi/files/config.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/meta-isar/recipes-bsp/bootconfig-rpi/files/config.txt b/meta-isar/recipes-bsp/bootconfig-rpi/files/config.txt index 417d53f1..6d742f27 100644 --- a/meta-isar/recipes-bsp/bootconfig-rpi/files/config.txt +++ b/meta-isar/recipes-bsp/bootconfig-rpi/files/config.txt @@ -1,5 +1,11 @@ [pi3] # Restore UART0/ttyAMA0 over GPIOs 14 & 15 +# On RPi 3, using mini UART for serial console is unstable. +# 1/3 boots produce garbage and doesn't reach login dtoverlay=miniuart-bt +[pi4] +# Enable mini UART (UART1/ttyS0) for serial console for RPi 4 +enable_uart=1 + [all]