#define CONFIG_SYS_MMC_MAX_BLK_COUNT 256
-> Using smaller max blk cnt to avoid flooding the limited stack in OCRAM
-
-#define CONFIG_DWMMC
--> Enable the common DesignWare SDMMC controller framework
-
-#define CONFIG_SOCFPGA_DWMMC
--> Enable the SOCFPGA specific driver for DesignWare SDMMC controller