Linux Samsung SOC development
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From: "Heiko Stübner" <mmind@debian.org>
To: linux-samsung-soc@vger.kernel.org
Cc: Alexander Neumann <fd0@lochraster.org>
Subject: s3c-sdhci s3c-sdhci.1: failed to get io clock on a s3c2416
Date: Sun, 2 Jan 2011 18:42:55 +0100	[thread overview]
Message-ID: <201101021842.55281.mmind@debian.org> (raw)

[please keep the Cc, thanks]

Hi,

we are trying to start a current kernel on a device of the Qisda ebook-reader
family. It uses both hsmmc-channels. The first one is connected to a nand-chip
from Hynix and the second is connected to a micro-sd-slot.

The system is based on a s3c2416 soc and is the basis for nearly every ebook
reader with a sipix-display at the moment. (more than 20 different models
worldwide).

We used kernel 2.6.37rc8 with the sdhci-patch from the next-s3c24xx branch.
The first channel is initialized correctly but the second channel throws the 
error mentioned. The relevant bootlog looks like this:


s3c-sdhci s3c-sdhci.0: clock source 0: hsmmc (133333333 Hz)
s3c-sdhci s3c-sdhci.0: clock source 1: hsmmc (133333333 Hz)
s3c-sdhci s3c-sdhci.0: clock source 2: hsmmc-if (96000000 Hz)
mmc0: SDHCI controller on samsung-hsmmc [s3c-sdhci.0] using ADMA
s3c-sdhci s3c-sdhci.1: failed to get io clock
mmc0: mmc_rescan: trying to init card at 400000 Hz
s3c-sdhci: probe of s3c-sdhci.1 failed with error -2
mmc0: new high speed MMC card at address 0001
mmcblk0: mmc0:0001 HYNIX  1.88 GiB
 mmcblk0: p1 p2 p3

The complete log can be found on: http://avalon.gnuzifer.de/~fd0/oyo/bootlog

Originally Qisda used something called s3c-linux which is a fork of 2.6.21.5
implementing support for Samsung SoCs and added some (propably machine
specific) voodoo to make it work.

One source of this kernel is: http://www.thalia.de/oyo_src/SG060B00_V009.tgz

If anyone could suggest what may be wrong here I would be really grateful as 
this stuff is way out my league :-)


Thanks
Heiko

             reply	other threads:[~2011-01-02 17:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-02 17:42 Heiko Stübner [this message]
2011-01-02 20:25 ` s3c-sdhci s3c-sdhci.1: failed to get io clock on a s3c2416 Heiko Stübner
2011-01-02 20:35   ` Heiko Stübner

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