Hi Adrian and Ulf, Currently I am focusing on future EMMC Controller for AMD Platform. This controller is EMMC 5.0 based ACPI device in our system. As I can see the code in mmc driver sdhci-acpi.c supports acpi enumerated EMMC controller. As per my understanding I need to update device id for AMD Controller in sdhci_acpi_uids table and sdhci_acpi_ids table. That apart do I have to write separate platform driver interface? If yes, what is exactly required to be done, we have acpi to platform interface file at drivers\acpi\acpi_apd.c (like lpss of intel) so can we leverage the same? Also Anything to do related to mmc binding? Your help /pointers in this direction will be much more appreciated. Thanks and Regards Nehal Shah ��.n��������+%������w��{.n�����{��i��)��jg��������ݢj����G�������j:+v���w�m������w�������h�����٥