--- /dev/null
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -294,6 +294,13 @@ config SPI_TLE62X0
+ sysfs interface, with each line presented as a kind of GPIO
+ exposing both switch control and diagnostic feedback.
+
++config SPI_RB4XX_CPLD
++ tristate "MikroTik RB4XX CPLD driver"
++ depends on AR71XX_MACH_RB4XX
++ help
++ SPI driver for the Xilinx CPLD chip present on the
++ MikroTik RB4xx boards.
++
+ #
+ # Add new SPI protocol masters in alphabetical order above this line
+ #
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -39,6 +39,7 @@ obj-$(CONFIG_SPI_STMP3XXX) += spi_stmp.
+ # ... add above this line ...
+
+ # SPI protocol drivers (device/link on bus)
++obj-$(CONFIG_SPI_RB4XX_CPLD) += spi_rb4xx_cpld.o
+ obj-$(CONFIG_SPI_SPIDEV) += spidev.o
+ obj-$(CONFIG_SPI_TLE62X0) += tle62x0.o
+ # ... add above this line ...