linux-kernel - Nemo on emulated Nokia n900 (qemu-arm)

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Message-ID: <20131128171153.GA20486@amd.pavel.ucw.cz>
Date:	Thu, 28 Nov 2013 18:11:53 +0100
From:	Pavel Machek <pavel@....cz>
To:	pali.rohar@...il.com, sre@...ian.org, sre@...g0.de,
	kernel list <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	OH@....pavel.ucw.cz
Subject: Nemo on emulated Nokia n900 (qemu-arm)

Hi!

For testing, it would be good to have some real
userland... unfortunately I can't figure out how to do it.

Ideally, I'd like to put nemo-armv7hl-n900-mmcblk0p.raw on emulated sd
card, but I get:

[    1.566345] Initializing XFRM netlink socket
[    1.568023] NET: Registered protocol family 17
[    1.570220] NET: Registered protocol family 15
[    1.572601] Key type dns_resolver registered
[    1.581481] omap_vp_forceupdate_scale: vdd_mpu_iva TRANXDONE
timeout exceeded while trying to clear the TRANXDONE status
[    1.586242] omap_vp_forceupdate_scale: vdd_core TRANXDONE timeout
exceeded while trying to clear the TRANXDONE status
[    1.601074] omap_vp_forceupdate_scale: vdd_mpu_iva TRANXDONE
timeout exceeded. Voltage change aborted
[    1.604522] cpu cpu0: omap_target: unable to scale voltage up.
[    1.606933] omap_hsmmc omap_hsmmc.1: no support for card's volts
[    1.609252] mmc1: error -22 whilst initialising SDIO card
SD: ACMD41 in a wrong state
SD: ACMD41 in a wrong state
SD: ACMD41 in a wrong state
SD: ACMD41 in a wrong state
SD: CMD1 in a wrong state
[    1.613830] cpufreq: __cpufreq_driver_target: Failed to change cpu
frequency: -110
[    1.622650] ThumbEE CPU extension supported.

But according to google, old linux kernels were able to work with SD
on qemu-arm...

IIRC there was some discussion that qemu does not properly emulate SD
card, and that internal NAND emulation can be used instead. I tried
using qflasher, but it is not able to use 3.5GB
nemo-armv7hl-n900-mmcblk0p.rawnemo-armv7hl-n900-mmcblk0p.raw -- strace
revealed file too big error.

Any ideas?
									Pavel
PS: And sorry if it is in archives somewhere. I googled quite a bit,
but did not find anything.
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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