--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
-@@ -488,4 +488,8 @@ config MTD_NAND_W90P910
+@@ -526,4 +526,8 @@ config MTD_NAND_NUC900
This enables the driver for the NAND Flash on evaluation board based
- on w90p910.
+ on w90p910 / NUC9xx.
+config MTD_NAND_RB4XX
+ tristate "NAND flash driver for RouterBoard 4xx series"
endif # MTD_NAND
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
-@@ -30,6 +30,7 @@ obj-$(CONFIG_MTD_NAND_CM_X270) += cmx27
+@@ -32,6 +32,7 @@ obj-$(CONFIG_MTD_NAND_CM_X270) += cmx27
obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o
obj-$(CONFIG_MTD_NAND_TMIO) += tmio_nand.o
obj-$(CONFIG_MTD_NAND_PLATFORM) += plat_nand.o