Date: Tue, 26 May 2020 22:20:45 +0000 From: Robert Crowston <crowston@protonmail.com> To: freebsd-arm <freebsd-arm@freebsd.org> Subject: Driver for Raspberry Pi 4 PCI-express controller Message-ID: <Pm_LEzoJP7MAKrZ9L-pRYQ4-qTv7TK1QARu1mwqoNFS5mzra-4zmS_0WYotf7CKSKDoZ2fjC3BSEUGIy-k95Qv1g35Zq0AsfiXwLHXpS0bE=@protonmail.com>
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A patch adding support for the pcie controller on the bcm2838 chip is avail= able here: https://github.com/RobCrowston/freebsd/commit/3626d1f774a72f2f77feedf100429= d0a23ac50c8.patch This is still in development, but it is ready for wider testing. I have tested this patch on three different Pi4s I have, including a 2 GB a= nd a 4 GB model. For the most part HIDs like keyboards and mice are reliabl= e, but data transfers from mass storage devices can sometimes, though not r= eproducibly, cause the xHCI controller to reset. I have only tested it agai= nst the soldered-on xHCI chip; if anyone has desoldered it and replaced it = with a pci-pci bridge, that would be interesting to hear about. Before I submit this to phabricator, assuming there is interest, I would be= interested to hear others' experiences with it, or indeed any other feedba= ck.
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