Like several other nand flash drivers, this one requires the BCH library to be selected from Kconfig. arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_attach_chip': arasan-nand-controller.c:(.text+0x894): undefined reference to `bch_init' arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_detach_chip': arasan-nand-controller.c:(.text+0x98c): undefined reference to `bch_free' arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_read_page_hw_ecc': arasan-nand-controller.c:(.text+0x1080): undefined reference to `bch_decode' Fixes: 197b88fecc50 ("mtd: rawnand: arasan: Add new Arasan NAND controller") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/mtd/nand/raw/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index e2bc87779bf9..113f61052269 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -456,6 +456,7 @@ config MTD_NAND_CADENCE config MTD_NAND_ARASAN tristate "Support for Arasan NAND flash controller" depends on HAS_IOMEM && HAS_DMA + select BCH help Enables the driver for the Arasan NAND flash controller on Zynq Ultrascale+ MPSoC. -- 2.26.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/