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From: Deepak Kodihalli <deepak.kodihalli.83@gmail.com>
Date: Mon, 9 Aug 2021 10:25:56 +0530
Message-ID: <CAM=TmwU57zhc_k7KAKc56wTf=mihD4uWxBd8qPS+-22ZKER94w@mail.gmail.com>
Subject: ast2600-evb qemu and usb-net
To: OpenBMC Maillist <openbmc@lists.ozlabs.org>, andrew@aj.id.au,
 joel@jms.id.au
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Hi All,

I am trying to launch the ast2600-evb machine on QEMU by passing a a
usb-net device:
qemu-system-arm -machine ast2600-evb  -drive file=<bmc
image>,if=mtd,bus=0,unit=0,snapshot=on -nographic  -nic
user,hostname=qemu -device usb-net,netdev=net0 -netdev
socket,id=net0,listen=:1234

I downloaded the QEMU binary from
https://github.com/openbmc/docs/blob/master/development/dev-environment.md#download-and-start-qemu-session.
The intent is to have two such QEMU instances talking over emulated
usb-net (the other instance would do a connect on the netdev socket).
I get the following error when I run the command above:
qemu-system-arm: -device usb-net,netdev=net0: Warning: speed mismatch
trying to attach usb device "QEMU USB Network Interface" (full speed)
to bus "usb-bus.1", port "1" (high speed)

I'm guessing this is the lack of usb support/initialization in
hw/arm/aspeed* in the QEMU tree. Has anyone else tried this with
ast2600-evb?

Thanks,
Deepak