Hi Boris, I am trying to access NOR flash with ARM running in big-endian mode. But it is causing error as " do_map_probe() failed for type cfi_probe" On our platform, The connection between Flash controller and NOR flash is little-endian. Here, ARM core running in littler endian mode with MTD_CFI_NOSWAP every things work fine. if we change ARM mode as big-endian, it start showing error as mentioned above. Error is same even with MTD_CFI_BE_BYTE_SWAP option. As per my understanding MTD_CFI_BE_BYTE_SWAP or MTD_CFI_LE_BYTE_SWAP deals with flash controller and flash connection. Not sure, if take care of Core endianness also. Please suggest!! Regards, Prabhakar ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/