[U-Boot] AT91SAM9xxx SDCard/MMC support?

Hello,

apparently none of the mainstream u-boot designs use SDCard/MMC.

It appears that this task should not be a huge problem, the MCI for both AVR32 and AT91SAM9 seems to be identical (and MCI on AVR32 works).

But before I perhaps reinvent anything already done, I prefer to ask here. Also any input what obstacles have been found would be appreciated.

I need the support for 9260/9G20/9XE.

Best Regards Reinhard