mtd: basic (read only) driver for BCMA serial flash

This registers MTD driver for serial flash platform device. Right now it
supports reading only, writing still has to be implemented.

Artem: minor amendments.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 6cc5a1a..27f80cd 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -120,6 +120,14 @@
 	  Set up your spi devices with the right board-specific platform data,
 	  if you want to specify device partitioning.
 
+config MTD_BCM47XXSFLASH
+	tristate "R/O support for serial flash on BCMA bus"
+	depends on BCMA_SFLASH
+	help
+	  BCMA bus can have various flash memories attached, they are
+	  registered by bcma as platform devices. This enables driver for
+	  serial flash memories (only read-only mode is implemented).
+
 config MTD_SLRAM
 	tristate "Uncached system RAM"
 	help