diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index b336777..f6f2a60 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -227,6 +227,10 @@
 	Set this to enable various workarounds for old kernels, this results in
 	sub-optimal settings for newer kernels, only enable if needed.
 
+config MMC
+	depends on !UART0_PORT_F
+	default y if ARCH_SUNXI
+
 config MMC0_CD_PIN
 	string "Card detect pin for mmc0"
 	default ""
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index d3d7d91..ceae7bc 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -2,7 +2,7 @@
 
 config MMC
 	bool "Enable MMC support"
-	depends on UNUSED
+	depends on ARCH_SUNXI
 	help
 	  TODO: Move all architectures to use this option
 
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 072934d..ddcfe94 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -140,8 +140,7 @@
 #endif
 
 /* mmc config */
-#if !defined(CONFIG_UART0_PORT_F)
-#define CONFIG_MMC
+#ifdef CONFIG_MMC
 #define CONFIG_GENERIC_MMC
 #define CONFIG_CMD_MMC
 #define CONFIG_MMC_SUNXI
@@ -197,7 +196,7 @@
 
 #define CONFIG_SPL_LIBDISK_SUPPORT
 
-#if !defined(CONFIG_UART0_PORT_F)
+#ifdef CONFIG_MMC
 #define CONFIG_SPL_MMC_SUPPORT
 #endif
 
@@ -355,9 +354,12 @@
 #define CONFIG_ANDROID_BOOT_IMAGE
 
 #define CONFIG_FASTBOOT_FLASH
+
+#ifdef CONFIG_MMC
 #define CONFIG_FASTBOOT_FLASH_MMC_DEV	0
 #define CONFIG_EFI_PARTITION
 #endif
+#endif
 
 #ifdef CONFIG_USB_FUNCTION_MASS_STORAGE
 #define CONFIG_CMD_USB_MASS_STORAGE