linux-kernel - Re: [PATCH v6 2/4] firmware: raspberrypi: Introduce vl805 init routine

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Date:   Sat, 04 Apr 2020 20:56:54 +0200
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com, linux-usb@...r.kernel.org,
        linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, gregkh@...uxfoundation.org,
        tim.gover@...pberrypi.org, linux-pci@...r.kernel.org,
        wahrenst@....net, sergei.shtylyov@...entembedded.com
Subject: Re: [PATCH v6 2/4] firmware: raspberrypi: Introduce vl805 init
 routine

On Thu, 2020-04-02 at 14:40 -0500, Bjorn Helgaas wrote:
> On Thu, Apr 02, 2020 at 01:32:35PM +0200, Nicolas Saenz Julienne wrote:
> > On Wed, 2020-04-01 at 15:37 -0500, Bjorn Helgaas wrote:
> > > On Tue, Mar 24, 2020 at 07:28:10PM +0100, Nicolas Saenz Julienne wrote:
> > > > On the Raspberry Pi 4, after a PCI reset, VL805's firmware may
> > > > either be loaded directly from an EEPROM or, if not present, by
> > > > the SoC's VideCore. The function informs VideCore that VL805 was
> > > > just reset, or requests for a probe defer.
> 
> Is VL805 the XHCI USB device?  A hint here would help non-RPi experts
> know how this fits into the topology.

Yes, VL805 is the XHCI USB device. I'll keep it in mind for the next series.

Regards,
Nicolas


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