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[85.214.156.166]) by gmr-mx.google.com with ESMTPS id 46e09a7af769-72e73e59ff2si149576a34.4.2025.04.10.03.19.19 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 10 Apr 2025 03:19:20 -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 [192.168.178.91] (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 53AAJHMk010710 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Apr 2025 12:19:17 +0200 Message-ID: Date: Thu, 10 Apr 2025 12:19:16 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] RPi: Enable serial console on RPi 4 B Content-Language: en-US To: "MOESSBAUER, Felix" , "isar-users@googlegroups.com" References: <20250407144723.273275-1-nt@ilbers.de> <55ff99d858cb8d8db441151ff27f1e7944691698.camel@siemens.com> From: Natalia Tasci In-Reply-To: <55ff99d858cb8d8db441151ff27f1e7944691698.camel@siemens.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: quoted-printable 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_H3, RCVD_IN_MSPIKE_WL,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-Spam-Checked-In-Group: isar-users@googlegroups.com X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-TUID: Gki9X/8ynmu0 Hi Felix, On 4/7/25 18:39, MOESSBAUER, Felix wrote: > On Mon, 2025-04-07 at 16:47 +0200, Natalia Tasci wrote: >> Tested with Raspbian Linux 12, baud rate of 115200 bps, 500 lines >> kernel >> log. > I thought about this as well. We should also consider switching the > RPi4b target over to EFI, as done here: > https://github.com/siemens/mtda/commit/37b0349f59b1c608727907c771f047fb72= 003fa8 > > By that, things like the kernel cmdline can be done by the imager and > no longer need to come from bsp packages. This would also easily enable > the use of mount-by-uuid to support USB boot and SD boot at the same > time. Thanks for the input. Doing this by the imager sounds reasonable. We=20 could consider the improvement after release. With kind regards, Natalia > Felix > >> Signed-off-by: Natalia Tasci >> --- >> =C2=A0meta-isar/recipes-bsp/bootconfig-rpi/files/config.txt | 6 ++++++ >> =C2=A01 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 @@ >> =C2=A0[pi3] >> =C2=A0# 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 >> =C2=A0dtoverlay=3Dminiuart-bt >> =20 >> +[pi4] >> +# Enable mini UART (UART1/ttyS0) for serial console for RPi 4 >> +enable_uart=3D1 >> + >> =C2=A0[all] >> --=20 >> 2.39.5 --=20 Natalia Tasci ilbers GmbH Maria-Merian-Str. 8 D-85521, Ottobrunn +49 (89) 122 67 24-2 http://ilbers.de/ Amtsgericht M=C3=BCnchen, HRB 214197 Gesch=C3=A4ftsf=C3=BChrer: Baurzhan Ismagulov --=20 You received this message because you are subscribed to the Google Groups "= isar-users" group. 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