On Sat, Oct 20, 2012 at 10:16 PM, Simon Glass <s...@chromium.org> wrote:
> From: Che-Liang Chiou <clch...@chromium.org> > > Most of time that MMC driver spends on initializing a device is polling > OCR (operation conditions register). To decouple this polling loop, > device init is split into two parts: The first part fires the OCR query > command, and the second part polls the result. So the caller is now no > longer bound to the OCR-polling delay; he may fire the query, go > somewhere and then come back later for the result. > > To use this, call mmc_set_preinit() on any device which needs this. > > This can save significant amounts of time on boot (e.g. 200ms) by > hiding the MMC init time behind other init. > > Signed-off-by: Che-Liang Chiou <clch...@chromium.org> > Signed-off-by: Simon Glass <s...@chromium.org> > > Could you rebase this on my latest tree? It failed to apply for reasons which weren't immediately clear to me, and it's a non-trivial chunk that failed. Thanks, Andy
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