[U-Boot] [PATCH 0/3] Ethernet support for QEMU sifive_u machine

[Bin Meng <bmeng.cn@gmail.com>]

Hi Anup,

On Tue, Dec 18, 2018 at 6:33 PM Anup Patel <anup@brainfault.org> wrote:
>
> On Tue, Dec 18, 2018 at 3:21 PM Bin Meng <bmeng.cn@gmail.com> wrote:
> >
> > Hi Anup,
> >
> > On Mon, Dec 17, 2018 at 7:51 PM Anup Patel <anup@brainfault.org> wrote:
> > >
> > > This patchset enables Cadance MACB ethernet driver for
> > > QEMU sifive_u machine. The Cadance MACB ethernet driver
> > > works fine for QEMU sifive_u machince in both M-mode and
> > > S-mode with some minor fixes.
> > >
> > > The patches are based upon latest RISC-V U-Boot tree
> > > (git://git.denx.de/u-boot-riscv.git) at commit id
> > > 9deb8d2fcd13d4a40a4e63c396fe4376af46efac
> > >
> > > To try on QEMU, please ensure following patches are
> > > applied to QEMU sources:
> > > https://patchwork.kernel.org/patch/10729579/
> > > https://patchwork.kernel.org/patch/10729581/
> > >
> >
> > What "-device " parameter should I tell QEMU to instantiate the MACB?
> > "-device ?" does not give me anything that looks like MACB. Without a
> > proper "-device " parameter, I can boot U-Boot on QEMU sifive_u and
> > see U-Boot driver is probed, but a simple 'ping' test does not work.
>
> Try the following:
> # setenv ipaddr 10.0.2.1
> # ping 10.0.2.2
>

Yes, I have set up all the required network parameters.

> The above works for me on QEMU.

My understanding is that we need enable QEMU network via "-netdev "
(either usr, or tap), with a corresponding "-device". I don't know how
to set it up. What's your command line to test this?

Regards,
Bin