We desperately need a faster/more reliable SD card interface to our BF52X design. This device http://www.nxp.com/documents/data_sheet/SDIO101.pdf looks like it might be a good match. Some level translation looks necessary to interface the control/data bus which can be managed.
The usual questions follow:
1. Has anyone else used this part with a Blackfin?
2. Are there any other similar devices that have been successfully deployed?
3. (For extra credit) Does anyone have a view on the level of similarity between the BF54X internal SDH controller and the NXP device? I am hoping the SDH device driver framework can be reused to a greater degree.