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Date:      Fri, 12 Nov 2021 11:54:24 +0100
From:      Hans Petter Selasky <hps@selasky.org>
To:        Milan Obuch <freebsd-usb@dino.sk>, freebsd-usb@freebsd.org
Subject:   Re: USBDMSC emulated device does not work on FreeBSD
Message-ID:  <6a6850f5-8233-aae7-8e65-42594402fcb5@selasky.org>
In-Reply-To: <20211112095915.226af6be@zeta.dino.sk>
References:  <20211112095915.226af6be@zeta.dino.sk>

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On 11/12/21 09:59, Milan Obuch wrote:
> Hi,
> 
> recently I got PolarFire SoC FPGA based board I am working on FreeBSD
> support for. As a non volatile storage, it has eNVM used for HSS and
> eMMC as disk device.
> 
> After reset, first thing run is HSS, which loads U-Boot from eMMC and
> usual boot process continues. It is possible, however, break the
> process and issue 'usbdmsc' command on HSS prompt. eMMC is then
> presented as USB disk.
> 
> This works on Windows, and one or more (depends on partition table used
> on eMMC) disk drives are presented to system. It is possible to use
> balenaEtcher software to put some image there and do something with it.
> 
> This does not work on FreeBSD. I see device being attached after
> starting 'usbdmsc' command, but no USB drive is being created. Could
> someone help me to diagnose this? Which command output (maybe
> 'usbconfig <something>') could offer some hint?
> 
> Regards,
> Milan
> 

Hi,

Can you share what is printed in dmesg?

This command may also be useful. It will show which kernel drivers are 
attached to your device.

usbconfig show_ifdrv

--HPS



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