[Bug 381] MMC support should be compiled-in
bugzilla-daemon at bugzilla.openmoko.org
bugzilla-daemon at bugzilla.openmoko.org
Tue Apr 3 09:22:11 CEST 2007
http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=381
laforge at openmoko.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |LATER
------- Additional Comments From laforge at openmoko.org 2007-04-03 09:22 -------
I disagree. MMC support adds a couple of seconds of kernel boot delay (due to
slow mmc scanning kernel thread). We cannot afford an even slower boot. In
fact, several months ago, we had MMC/SD support in the kernel image and removed
it just for this very reason.
We will only add mmc support to the kernel once we have re-worked the mmc
stack/drivers in a way that they only scan for a card if the card_detect gpio is
set.
However, due to the architecture and the stange level of abstraction between mmc
core, s3cmci driver and platform/machine plugin, this is by far more complex
than it should be.
I just looked into this yesterday and gave up on it, since it's too time
consuming now.
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