[U-Boot] fsl_esdhc.c: eMMC 4.4 support?

[Dirk Behme]

With the two commits

http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/commit/?h=imx_v2009.08&id=1bc5e5f2cee211a74ee79e0eb5f7f37a3db387f4

http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/commit/?h=imx_v2009.08&id=82102d3fdeae0dcd79d9b3ab7daa96bebd5ad290

the old Freescale U-Boot has eMMC 4.4 support.

Our mainline drivers/mmc/fsl_esdhc.c doesn't seem to support this.

Does anybody work on porting this to the mainline fsl_esdhc.c? Or any 
other pointers which might help?

Unfortunately, Freescale doesn't use the fsl_esdhc.c. They put their own 
  imx_esdhc.c in parallel. This does make porting even harder :(

Many thanks and best regards

Dirk