[U-Boot] [PATCH v7 40/87] mtd: spi-nor: Add Kconfig entry for mtd_dataflash

[Jagan Teki]

Added kconfig entry for MTD_DATAFLASH

Cc: Bin Meng <bmeng.cn at gmail.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: York Sun <york.sun at nxp.com>
Signed-off-by: Jagan Teki <jteki at openedev.com>
---
 drivers/mtd/spi-nor/Kconfig | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig
index a035fd3..f2bd630 100644
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -99,3 +99,18 @@ config SPI_FLASH_WINBOND
 	  Add support for various Winbond SPI flash chips (W25xxx)
 
 endif # MTD_SPI_NOR
+
+config MTD_DATAFLASH
+	bool "AT45xxx DataFlash support"
+	depends on MTD
+	help
+	  Enable the access for SPI-flash-based AT45xxx DataFlash chips.
+	  DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
+	  in each chip, which may be used for double buffered I/O; but this
+	  driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
+
+	  Sometimes DataFlash is packaged in MMC-format cards, although the
+	  MMC stack can't (yet?) distinguish between MMC and DataFlash
+	  protocols during enumeration.
+
+	  If unsure, say N
-- 
1.9.1