Driver for Raspberry Pi 4 PCI-express controller

Klaus Küchemann maciphone2 at googlemail.com
Thu May 28 17:20:56 UTC 2020



> Am 28.05.2020 um 17:37 schrieb Klaus Küchemann <maciphone2 at googlemail.com>:
> 
> 
> 
>> Am 28.05.2020 um 16:57 schrieb Robert Crowston <crowston at protonmail.com>:
>> 
>> Thanks Klaus.
>> 
>> I see that the Pi foundation has today released the 8 GB Raspberry Pi 4. Unfortunately 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.
>> 
>> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
>> On Wednesday, 27 May 2020 08:40, Klaus Küchemann <maciphone2 at googlemail.com> wrote:
> 
> 
> Thanks Robert ,
> …. you forced me to order an 8GB-model :-), since we need at least 
> 2 persons to test your driver.`guess it will arrive here in 2 or 4 days.
> Didn’t find the time yet for further testing ...`will do a Wiki-entry tonight …. 
> There’s something special with the RPI4 using QWord , perhaps you can take a look at :
> https://github.com/tianocore/edk2-platforms/blob/master/Platform/RaspberryPi/AcpiTables/Xhci.asl#L118
> (and the OpenBSD-xhci-driver which addresses that issue)
> (saw your comment in edkII-branch).


… well, yet another thing  :

http://u-boot.10912.n7.nabble.com/PATCH-v3-0-2-usb-xhci-Load-Raspberry-Pi-4-VL805-s-firmware-td410664.html

https://patchwork.kernel.org/cover/11529585/






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