unable to read from Sandisk 8Gb SD

Alex Oberhauser oberhauseralex at networld.to
Tue Sep 23 01:07:04 CEST 2008

On Mon, Sep 22, 2008 at 10:52:26PM +0100, Andy Green wrote:
> Somebody in the thread at some point said:
> | On Mon, Sep 15, 2008 at 9:13 AM, Andy Green <andy at openmoko.com
> | <mailto:andy at openmoko.com>> wrote:
> |
> |     Can you confirm if you need the idle clock set to 1?  What I think I
> |     understood about this issue is that it is timeout-related only, it
> means
> |     I didn't actually understand what is going on if it needs idle
> |     clocks too.
> |
> |
> | i am now sure: i don't need it. I made many other experiments (about
> | log2(50)) and i found out that the maximum value for the sd_max_clock
> | which can still read the card is
> There is a patch that should be in tomorrow's kernels that addresses
> this, at least it gets my Sandisk 8GB SDHC recognized, please let me
> know if it helped or not.
> http://git.openmoko.org/?p=kernel.git;a=commitdiff;h=9e7ba57b104e9293f746342b7450b10d5fa0c4cd

With the kernel patch it works for me (Sandisk microSDHC 8 GB). I have started
the device twice and always the card was recognized and mounted. Tomorrow
(actually today) I will test it more and try to run Debian from the card (this
not has worked)


> - -Andy

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