fix-mmc-busy-loop-on-bytes.patch and Fix hangup indo_pio_write() patch

YongLi sdshliyong at
Fri Feb 20 05:21:15 CET 2009

Thank you for your help. I will only apply the first patch!


> Andy Green wrote:
>> At a guess, they may be trying to fix the same bug different ways,
> Yes, I can confirm this.
>> but
>> if it's true, then the second patch should also do the same to
>> do_pio_read loop?  So maybe just the first patch will solve it.
> Yes, I think also do_pio_read should be fixed.
> The two sides are slightly different: in the do_pio_write case,
> you loop forever, so the problem is instantly visible.
> In the do_pio_read case you loop until the word is complete. This
> should be okay in most cases, but I could imagine error conditions
> where this is no longer true and you'd end up with a system that
> dies from time to time.
> - Werner

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