Bug#960129: linux-image-5.6.0-1-arm64: please enable CONFIG_PCIE_BRCMSTB in the arm64 kernel for Raspberry Pi 4

[Lucas Nussbaum <lucas@debian.org>]

On 10/05/20 at 14:22 +0200, Bjørn Mork wrote:
> Bjørn Mork <bjorn@mork.no> writes:
> 
> > Note that I found that I had to remove the cma=xx option raspi-firmware
> > wants to put into the cmdline.txt.  This messed up mailbox access to the
> > firmware, and took several drivers/devices with it in the fall.  Don't
> > think the SD card was one one them.  But still worth trying.  Makes the
> > sound driver load at least, and allows vcgencmd to talk to the firmware.
> 
> 
> Sorry about all the mails.. Should have tested this myself before
> sending the previous one.
> 
> I do believe this is the problem. I just tested with 'cma=64M' on the
> command line, like raspi-firmware wants to put there, and it fails to
> load the mmc driver too:

Thanks! Indeed it works now.

I'll make sure that this gets fixed into raspi-firmware at some point.

Lucas