sunxi: Use Kconfig CONFIG_MMC

Not all sunxi boards have an MMC embedded. Switching to the Kconfig option
will allow to enable or disable the support in each boards' defconfig.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

board/sunxi/Kconfig

@@ -227,6 +227,10 @@ config OLD_SUNXI_KERNEL_COMPAT
 	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 ""

drivers/mmc/Kconfig

@@ -2,7 +2,7 @@ menu "MMC Host controller Support"
 
 config MMC
 	bool "Enable MMC support"
-	depends on UNUSED
+	depends on ARCH_SUNXI
 	help
 	  TODO: Move all architectures to use this option
 

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 @@ extern int soft_i2c_gpio_scl;
 #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