From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Using qemu-system-ppc to boot U-Boot
Date: Tue, 27 Mar 2012 14:55:38 -0700 [thread overview]
Message-ID: <20120327215538.GA5418@bill-the-cat> (raw)
In-Reply-To: <4F722A44.1080504@freescale.com>
On Tue, Mar 27, 2012 at 03:59:48PM -0500, Scott Wood wrote:
> On 03/27/2012 03:53 PM, Wolfgang Denk wrote:
> > Dear Frank,
> >
> > In message <CADNf2sxrQFDU0LLQWp5huRGgQiKbaLik1+2C=Oj=gjORP6XacA@mail.gmail.com> you wrote:
> >>
> >> I'm trying to figure out if anyone has ported a PPC system to QEMU
> >> that is capable of booting U-Boot. Similar to the ARM versatilepb
> >> target, but for PPC instead. I've tried the Bamboo and MPC8544DS but
> >> it seems they only use stubs to OS calls and parses a DTB for info.
> >
> > Did you check which configurations the Yocto project are using? They
> > provide qemu based emulations for ARM, MIPS, PPC and x86, and I would
> > be really surprised if the ARM and PPC configs were not based on
> > U-Boot ... [ARM: beagleboard; PPC: mpc8315e-rdb; MIPS:
> > routerstationpro]
>
> I'm not familiar with what Yocto does, but at least for Freescale PPC
> chips QEMU does not emulate enough of the hardware to run U-Boot (at
> least, not without significant U-Boot hacking that I'm not aware of
> anyone having done). QEMU loads Linux directly.
Putting my OE-guy hat on, the qemu-ppc target used is 'mac99'. It was
switched over from prep back in January of this year. From my own past
diggings, there's not really a newer machine option as all of the
support added to qemu from Freescale and IBM has been kvm-oriented
rather than full machine emulation oriented. So to run U-Boot under
qemu on a BE machine, you'd need to port U-Boot over. Or, build the
sandbox arch on a BE host, such as Linux running under qemu-ppc. Then
it should be BE, yes?
--
Tom
next prev parent reply other threads:[~2012-03-27 21:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-27 18:41 [U-Boot] Using qemu-system-ppc to boot U-Boot Frank Svendsbøe
2012-03-27 20:53 ` Wolfgang Denk
2012-03-27 20:59 ` Scott Wood
2012-03-27 21:55 ` Tom Rini [this message]
2012-03-27 21:58 ` Scott Wood
2012-03-28 17:13 ` Frank Svendsbøe
2012-03-27 22:16 ` Marek Vasut
2012-03-28 17:19 ` Frank Svendsbøe
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