On Monday 16 April 2012 15:25:55 Shashidhar Hiremath wrote:
> Hi,
>   is the 8bit bus width supported by the hardware ?

yes. I works with just fine with a chromeos 3.0 kernel and 3.1 kernel (from nv-
tegra.nvidia.com).

Marc

> 
> On Fri, Apr 13, 2012 at 11:29 PM, Marc Dietrich <marvi...@gmx.de> wrote:
> > Hi,
> > 
> > I'm running linux-next on a tegra-sdhci host which has a Toshiba
> > THGBM2G6D2FBAI9 eMMC connected. During boot I get a "mmc1: power class
> > selection to bus width 8 failed" warning.
> > 
> > /sys/kernel/debug/mmc1# cat ios
> > clock:          48000000 Hz
> > actual clock:   48000000 Hz
> > vdd:            20 (3.2 ~ 3.3 V)
> > bus mode:       2 (push-pull)
> > chip select:    0 (don't care)
> > power mode:     2 (on)
> > bus width:      3 (8 bits)
> > timing spec:    1 (mmc high-speed)
> > 
> > Any hints?

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