linux-kernel - Re: mmc does not work in qemu n900

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Date:	Tue, 27 Jan 2015 10:17:39 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Aaro Koskinen <aaro.koskinen@....fi>
Cc:	Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Pavel Machek <pavel@....cz>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	Sebastian Reichel <sre@...nel.org>
Subject: Re: mmc does not work in qemu n900

On Tuesday 27 January 2015 00:21:04 Aaro Koskinen wrote:
> Hi,
> 
> On Mon, Jan 26, 2015 at 10:04:59PM +0100, Pali Rohár wrote:
> > problem? Why any of these two patches fix problem when mmc
> > is not detected by kernel in qemu (machine n900)? Detection
> > of mmc fails because function mmc_send_op_cond() without
> > one of above patches fails.
> 
> Has it ever worked? It could be just that QEMU's emulation is
> broken. Since the kernel works on actual HW, you probably
> should contact QEMU maintainers.
> 
> I don't see n900 in Debian's QEMU. There's n800 and n810 but
> I couldn't boot any of my kernels with those...
> 
> A.

It worked with stock Nokia kernel (2.6.28).

N900 qemu support is not in upstream qemu project, but in linaro 
qemu version. You can find it e.g. in ubuntu: 
http://packages.ubuntu.com/source/precise-updates/qemu-linaro

-- 
Pali Rohár
pali.rohar@...il.com

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