Hi Nicolas, On Wed, Apr 29, 2020 at 1:45 AM Nicolas Saenz Julienne <nsaenzjulie...@suse.de> wrote: > > When needed, RPi4's co-processor (called VideoCore) has to be instructed > to load VL805's firmware (the chip providing xHCI support). VideCore's > firmware expects the board's PCIe bus to be already configured in order > for it to load the xHCI chip firmware. So we have to make sure this > happens in between the PCIe configuration and xHCI startup. >
I am a little bit confused. I thought we already solved the xHCI driver issuw on RPi4. What's this firmware used for? > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulie...@suse.de> > --- > drivers/usb/host/xhci-pci.c | 6 ++++++ > 1 file changed, 6 insertions(+) > Regards, Bin