Compile Linux-2.4.2 with MTD support for walnut 405gp

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I compile it success, but when booting show me

"Physically mapped flash: Found no CFI device at location zero"

followed is my config for mtd.

#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
CONFIG_MTD_DEBUG=y
CONFIG_MTD_DEBUG_VERBOSE=3
# CONFIG_MTD_DOC1000 is not set
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
# CONFIG_MTD_DOCPROBE is not set
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_RAM is not set
CONFIG_MTD_ROM=y
# CONFIG_MTD_MTDRAM is not set
CONFIG_MTD_CFI=y
# CONFIG_MTD_CFI_VIRTUAL_ER is not set
CONFIG_MTD_CFI_ADV_OPTIONS=y
CONFIG_MTD_CFI_NOSWAP=y
# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
# CONFIG_MTD_CFI_LART_BIT_SWAP is not set
CONFIG_MTD_CFI_GEOMETRY=y
# CONFIG_MTD_CFI_B1 is not set
# CONFIG_MTD_CFI_B2 is not set
CONFIG_MTD_CFI_B4=y
# CONFIG_MTD_CFI_I1 is not set
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CFI_AMDSTD=y
# CONFIG_MTD_AMDSTD is not set
# CONFIG_MTD_SHARP is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_START=fff80000
CONFIG_MTD_PHYSMAP_LEN=7ffff
CONFIG_MTD_PHYSMAP_BUSWIDTH=4
# CONFIG_MTD_NORA is not set
# CONFIG_MTD_PNC2000 is not set
# CONFIG_MTD_RPXLITE is not set
CONFIG_MTD_SC520CDP=y
# CONFIG_MTD_SBC_MEDIAGX is not set
# CONFIG_MTD_ELAN_104NC is not set
# CONFIG_MTD_SA1100 is not set
# CONFIG_MTD_DC21285 is not set
# CONFIG_MTD_IQ80310 is not set
# CONFIG_MTD_CSTM_CFI_JEDEC is not set
# CONFIG_MTD_CFI_FLAGADM is not set
CONFIG_MTD_JEDEC=y
# CONFIG_MTD_MIXMEM is not set
# CONFIG_MTD_OCTAGON is not set
# CONFIG_MTD_VMAX is not set
# CONFIG_MTD_ARM is not set
# CONFIG_MTD_NAND is not set
# CONFIG_MTD_NAND_SPIA is not set
# CONFIG_MTD_CHAR is not set
# CONFIG_MTD_BLOCK is not set
# CONFIG_MTD_BLOCK_RO is not set
# CONFIG_FTL is not set
# CONFIG_NFTL is not set

How should I configure for it?
Thank you!

				byf
            byfmail at yeah.net


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