Blackfin: cm-bf537e/cm-bf537u/tcm-bf537: enable mmc_spi support

These boards have an mmc/sd slot on them connected over SPI, so
enable the driver.

Signed-off-by: Harald Krapfenbauer <harald.krapfenbauer@bluetechnix.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/include/configs/tcm-bf537.h b/include/configs/tcm-bf537.h
index f2c5b98..2375fc5 100644
--- a/include/configs/tcm-bf537.h
+++ b/include/configs/tcm-bf537.h
@@ -55,7 +55,7 @@
 #define CONFIG_EBIU_AMBCTL0_VAL	(B1WAT_7 | B1RAT_11 | B1HT_2 | B1ST_3 | B0WAT_7 | B0RAT_11 | B0HT_2 | B0ST_3)
 #define CONFIG_EBIU_AMBCTL1_VAL	(B3WAT_7 | B3RAT_11 | B3HT_2 | B3ST_3 | B2WAT_7 | B2RAT_11 | B2HT_2 | B2ST_3)
 
-#define CONFIG_SYS_MONITOR_LEN	(256 * 1024)
+#define CONFIG_SYS_MONITOR_LEN	(512 * 1024)
 #define CONFIG_SYS_MALLOC_LEN	(128 * 1024)
 
 
@@ -89,6 +89,13 @@
 
 
 /*
+ * SPI Settings
+ */
+#define CONFIG_BFIN_SPI
+#define CONFIG_ENV_SPI_MAX_HZ	30000000
+
+
+/*
  * Env Storage Settings
  */
 #define CONFIG_ENV_IS_IN_FLASH	1
@@ -121,6 +128,13 @@
 
 
 /*
+ * SPI_MMC Settings
+ */
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MMC_SPI
+
+/*
  * Misc Settings
  */
 #define CONFIG_BAUDRATE		115200