Broadcom SDIO/SD/MMC support

modulename: sdhci-brcmstb.ko

configname: CONFIG_MMC_SDHCI_BRCMSTB

Linux Kernel Configuration
└─>Device Drivers
└─>MMC/SD/SDIO card support
└─>Broadcom SDIO/SD/MMC support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This selects support for the SDIO/SD/MMC Host Controller on
Broadcom STB SoCs.

If unsure, say Y.

source code:
drivers/mmc/host/sdhci-brcmstb.c