Date: Thu, 28 May 2020 14:57:35 +0000 From: Robert Crowston <crowston@protonmail.com> To: =?UTF-8?Q?Klaus_K=C3=BCchemann?= <maciphone2@googlemail.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Driver for Raspberry Pi 4 PCI-express controller Message-ID: <1RBZ-1AclgkiNDwWUqrWhun8T8YSAX6g64NeSc2DKy9EF1wGsJobselP4UYGflpcmbfUx3sEEM2YplIJOXPmZ6EG_GwiMC1_3GLrqpZxisQ=@protonmail.com> In-Reply-To: <7F058E92-DDD3-4728-9A51-09BF1D47855C@googlemail.com> References: <Pm_LEzoJP7MAKrZ9L-pRYQ4-qTv7TK1QARu1mwqoNFS5mzra-4zmS_0WYotf7CKSKDoZ2fjC3BSEUGIy-k95Qv1g35Zq0AsfiXwLHXpS0bE=@protonmail.com> <7F058E92-DDD3-4728-9A51-09BF1D47855C@googlemail.com>
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Thanks Klaus. I see that the Pi foundation has today released the 8 GB Raspberry Pi 4. Un= fortunately the driver here only provides the controller a 4 GB window into= system memory, but I believe it should not be too hard to tweak. =E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90 Original Me= ssage =E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90 On Wednesday, 27 May 2020 08:40, Klaus K=C3=BCchemann <maciphone2@googlemai= l.com> wrote: > > > > Am 27.05.2020 um 00:20 schrieb Robert Crowston via freebsd-arm freebsd-= arm@freebsd.org: > > A patch adding support for the pcie controller on the bcm2838 chip is a= vailable here: > > https://github.com/RobCrowston/freebsd/commit/3626d1f774a72f2f77feedf10= 0429d0a23ac50c8.patch > > thanks =E2=80=A6. > > > This is still in development, but it is ready for wider testing. > > dmesg : > https://dmesgd.nycbug.org/index.cgi?do=3Dview&id=3D5517 > > > I have tested this patch on three different Pi4s I have, including a 2 = GB and a 4 GB model. For the most part HIDs like keyboards and mice are rel= iable, but data transfers from mass storage devices can sometimes, though n= ot reproducibly, cause the xHCI controller to reset. > > For me keyboard/mouse sometimes worked after reboot/detach<->attach, some= times worked not(using Original RPI4-power adaptor). As seen in dmesg I cou= ld mount USB thumb drive. > > I suspect the generic_xhci driver(s) for the problems and I guess there s= ome =E2=80=9Aquirks=E2=80=98 have to be added there(also for ACPI)... > > I will test it in more detail and then publish it in the wiki if you don'= t want to do it yourself in the wiki. > > > I have only tested it against the soldered-on xHCI chip; if anyone has = desoldered it and replaced it with a pci-pci bridge, that would be interest= ing to hear about. > > Before I submit this to phabricator, assuming there is interest, I woul= d be interested to hear others' experiences with it, or indeed any other fe= edback. > > > > freebsd-arm@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"
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