[U-Boot] [PATCH v6 44/76] mtd: spi-nor: Add Kconfig entry for mtd_dataflash

Jagan Teki
2016-02-14T20:48:43Z

Added kconfig entry for MTD_DATAFLASH

Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: York Sun <york.sun@nxp.com>
Cc: Haikun Wang <haikun.wang@freescale.com>
Signed-off-by: Jagan Teki <jteki@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 219306f..15e8432 100644
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -97,3 +97,18 @@ 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