Hello, I have one AMD29LV640 NOR chip on my system. How can I enable it in Linux as MTD device? Right now, I can not operate on /dev/mtd in Linux:
# od -x /dev/mtd od: /dev/mtd: No such file or directory od: /dev/mtd: Bad file descriptor # od -x /dev/mtd0 od: Dec 31 16:02:17 kernel: MTD_open /dev/mtd0: No such device I think something wrong with my config flags(listed as followings), this is a CFI supported device. The physical address starts at 0xbf800000 Thanks for your help, Mike # Generic Driver Options # CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_SYS_HYPERVISOR is not set # CONFIG_CONNECTOR is not set CONFIG_MTD=y CONFIG_MTD_DEBUG=y CONFIG_MTD_DEBUG_VERBOSE=3 CONFIG_MTD_CONCAT=y CONFIG_MTD_PARTITIONS=y # CONFIG_MTD_REDBOOT_PARTS is not set CONFIG_MTD_CMDLINE_PARTS=y # # User Modules And Translation Layers # CONFIG_MTD_CHAR=y CONFIG_MTD_BLKDEVS=y # CONFIG_MTD_BLOCK is not set # CONFIG_MTD_BLOCK_RO is not set # CONFIG_FTL is not set # CONFIG_NFTL is not set # CONFIG_INFTL is not set # CONFIG_RFD_FTL is not set # CONFIG_SSFDC is not set CONFIG_MTD_LFS_SUPPORT=y # # RAM/ROM/Flash chip drivers # CONFIG_MTD_CFI=y # CONFIG_MTD_JEDECPROBE is not set CONFIG_MTD_GEN_PROBE=y 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_GEOMETRY=y CONFIG_MTD_MAP_BANK_WIDTH_1=y CONFIG_MTD_MAP_BANK_WIDTH_2=y CONFIG_MTD_MAP_BANK_WIDTH_4=y # CONFIG_MTD_MAP_BANK_WIDTH_8 is not set # CONFIG_MTD_MAP_BANK_WIDTH_16 is not set # CONFIG_MTD_MAP_BANK_WIDTH_32 is not set CONFIG_MTD_CFI_I1=y # CONFIG_MTD_CFI_I2 is not set # CONFIG_MTD_CFI_I4 is not set # CONFIG_MTD_CFI_I8 is not set # CONFIG_MTD_OTP is not set # CONFIG_MTD_CFI_INTELEXT is not set CONFIG_MTD_CFI_AMDSTD=y # CONFIG_MTD_CFI_STAA is not set CONFIG_MTD_CFI_UTIL=y # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set # # Mapping drivers for chip access # # CONFIG_MTD_COMPLEX_MAPPINGS is not set CONFIG_MTD_PHYSMAP=y CONFIG_MTD_PHYSMAP_START=0xBF800000 CONFIG_MTD_PHYSMAP_LEN=0x0 CONFIG_MTD_PHYSMAP_BANKWIDTH=2 # CONFIG_MTD_PLATRAM is not set # # Self-contained MTD device drivers # # CONFIG_MTD_SLRAM is not set # CONFIG_MTD_PHRAM is not set # CONFIG_MTD_MTDRAM is not set # CONFIG_MTD_BLOCK2MTD is not set # # Disk-On-Chip Device Drivers # # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOC2001PLUS is not set CONFIG_MTD_NAND=y CONFIG_MTD_NAND_VERIFY_WRITE=y # CONFIG_MTD_NAND_ECC_SMC is not set # CONFIG_MTD_NAND_MUSEUM_IDS is not set CONFIG_MTD_NAND_BCM1103=y CONFIG_MTD_NAND_IDS=y # CONFIG_MTD_NAND_DISKONCHIP is not set # CONFIG_MTD_NAND_NANDSIM is not set # CONFIG_MTD_NAND_PLATFORM is not set # CONFIG_MTD_ONENAND is not set _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
