--- /dev/null
+--- a/drivers/mtd/nand/Kconfig
++++ b/drivers/mtd/nand/Kconfig
+@@ -420,4 +420,8 @@ config MTD_NAND_SH_FLCTL
+ Several Renesas SuperH CPU has FLCTL. This option enables support
+ for NAND Flash using FLCTL. This driver support SH7723.
+
++config MTD_NAND_RB4XX
++ tristate "NAND flash driver for RouterBoard 4xx series"
++ depends on MTD_NAND && ATHEROS_AR71XX
++
+ endif # MTD_NAND
+--- a/drivers/mtd/nand/Makefile
++++ b/drivers/mtd/nand/Makefile
+@@ -29,6 +29,7 @@ obj-$(CONFIG_MTD_NAND_BASLER_EXCITE) +=
+ obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o
+ obj-$(CONFIG_MTD_NAND_TMIO) += tmio_nand.o
+ obj-$(CONFIG_MTD_NAND_PLATFORM) += plat_nand.o
++obj-$(CONFIG_MTD_NAND_RB4XX) += rb4xx_nand.o
+ obj-$(CONFIG_MTD_ALAUDA) += alauda.o
+ obj-$(CONFIG_MTD_NAND_PASEMI) += pasemi_nand.o
+ obj-$(CONFIG_MTD_NAND_ORION) += orion_nand.o