Date: Sat, 3 Feb 2024 13:45:12 -0800 From: Mark Millard <marklmi@yahoo.com> To: Doug Rabson <dfr@rabson.org> Cc: Jesper Schmitz Mouridsen <jsm@freebsd.org>, John Kennedy <warlock@phouka.net>, ykla <yklaxds@gmail.com>, FreeBSD ARM List <freebsd-arm@freebsd.org> Subject: Re: When will FreeBSD support RPI5? [avoid all USB use if using EDK2 to boot] Message-ID: <B2327B3B-A08F-434E-A156-7ED15B62AA99@yahoo.com> In-Reply-To: <CACA0VUh_X5nudWGOCeupW_34=aUewmwvOWmp61ONm=PtNr9wFw@mail.gmail.com> References: <CA%2BPGaYC6__AZUgHqfv3PO-o=7FnEzRzTPGPhMuahFNdcN0D69A@mail.gmail.com> <ddbf131c-1f2c-424b-9a3f-54ded16c5123@FreeBSD.org> <ZZHC_SjrPgs3DMKe@phouka1.phouka.net> <5a39810c-5fd8-4969-a222-2561b050b035@FreeBSD.org> <CACA0VUjoTTVje7tQe%2BVHXPco_xs4C8vSB3P3eDnhuYJYSqc7Sw@mail.gmail.com> <A2CA16F2-9894-41F2-8035-A5E8BE271B58@yahoo.com> <CACA0VUg7XHtQ7nviXVUZ_dZGaPe2uhbT-eGRbMAOajqZLGDmew@mail.gmail.com> <ECBFBAEF-C35B-4C68-B9BF-C3B62E5A4DFE@yahoo.com> <347FE009-A470-4765-A9B9-7C9AB5E954DA@yahoo.com> <CACA0VUh_X5nudWGOCeupW_34=aUewmwvOWmp61ONm=PtNr9wFw@mail.gmail.com>
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I'll note that all use of USB (XCHI being involvoed) is subject to = massive data corruptions on the RPi5 when used via the EDK2 as EDK2 now exists. That includes booting via USB media. This is not limited to FreeBSD: Linux and Windows 11 too, for example. No OS is known to operate without such problems. QUOTE of https://github.com/worproject/rpi5-uefi?tab=3Dreadme-ov-file : In ACPI mode ACPI support is currently under development and limited to a few devices = that have existing driver bindings. Warning USB is unreliable and may cause data corruption on all supported OSes. = We're currently investigating this issue, see: #3. END QUOTE #3 is: https://github.com/worproject/rpi5-uefi/issues/3 EDK2's USB I/O for its own purposes uses polling and seems to work okay. =3D=3D=3D Mark Millard marklmi at yahoo.com
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