[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


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

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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