spi: Add Designware SPI controller Kconfig entry

Add DWC SPI controller Kconfig entry.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Vince Bridgers <vbridger@opensource.altera.com>

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 60e660a4ecfcf091c8f34bb6a571d66ff72e3db4..4782a35c68c7a56f6df9194cc00648d91e112735 100644 (file)
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -38,3 +38,11 @@ config SANDBOX_SPI
                        sandbox,filename = "spi.bin";
                };
        };
+
+config DESIGNWARE_SPI
+       bool "Designware SPI driver"
+       depends on DM_SPI
+       help
+         Enable the Designware SPI driver. This driver can be used to
+         access the SPI NOR flash on platforms embedding this Designware
+         IP core.