* MMC on MPC8379
@ 2011-01-31 20:12 Gary Thomas
2011-02-03 18:48 ` Gary Thomas
0 siblings, 1 reply; 2+ messages in thread
From: Gary Thomas @ 2011-01-31 20:12 UTC (permalink / raw)
To: Linux PPC Development
I'm running 2.6.32 on MPC8379, trying to use the SDHCI interface.
It seems to work, reads are fine, but when I write to the device
(I've tried both eMMC soldered-on and pluggable MMC/SD cards),
I get intermittent failures. Specifically, some blocks will be
written while others fail. I haven't yet found a pattern.
Is there anything special about this interface? I notice that
it's not really used by any FSL platforms although the driver
claims support.
Any ideas?
Thanks
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: MMC on MPC8379
2011-01-31 20:12 MMC on MPC8379 Gary Thomas
@ 2011-02-03 18:48 ` Gary Thomas
0 siblings, 0 replies; 2+ messages in thread
From: Gary Thomas @ 2011-02-03 18:48 UTC (permalink / raw)
To: Linux PPC Development
On 01/31/2011 01:12 PM, Gary Thomas wrote:
> I'm running 2.6.32 on MPC8379, trying to use the SDHCI interface.
> It seems to work, reads are fine, but when I write to the device
> (I've tried both eMMC soldered-on and pluggable MMC/SD cards),
> I get intermittent failures. Specifically, some blocks will be
> written while others fail. I haven't yet found a pattern.
>
> Is there anything special about this interface? I notice that
> it's not really used by any FSL platforms although the driver
> claims support.
On the surface, it looks like it should work and I'm perplexed
by the failures.
Does anyone have any ideas or experience with this device?
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-01-31 20:12 MMC on MPC8379 Gary Thomas
2011-02-03 18:48 ` Gary Thomas
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