eMMC disk in WinXP 32/64-bit

[reboot12]

I have a Dell Wyse 5070 test machine with two disks - eMMC 16 GB and M2 SATA 128 GB

I installed on M2 WinXP 64-bit in pure UEFI and the OS works well. I have ported eMMC drivers but the system does not see eMMC disk both on system drivers and on those ported. There is only an SD controller device in the Unknown section in the Device Manager:

I added HW ID PCI\VEN_8086&DEV_31CC controller to the sdbus.inf file but nothing helps.

eMMC_xp64.zip

Installation of the KB934428 update does not help either.

P.S. Same eMMC disk works OK in Win10:

Edited 5 hours ago by reboot12