Hi, I have a problem with writing into the FLASH of Malta board. I am trying to describe the problem bellow. Please help me. I am using Malta 4KC box and running Linux Kernel 2.4.18. I have writen a File System (ext2) into Flash address 0x9E100000 using Yamon's 'load' command. I have also loaded my Vmlinux into RAM using Yamon's 'load' command. Now I am trying to access the File System written into Flash (Loaded at address 0x9E100000) from vmlinux code. I am actually enabled the MTD support and using Test RAM driver(linux/drivers/mtd/devices/mtdram.c) to get a MTD device. The portion of the configuration is given bellow - # # Memory Technology Devices (MTD) # CONFIG_MTD=y CONFIG_MTD_DEBUG=y CONFIG_MTD_DEBUG_VERBOSE=3 # CONFIG_MTD_PARTITIONS is not set # CONFIG_MTD_REDBOOT_PARTS is not set # CONFIG_MTD_CHAR is not set CONFIG_MTD_BLOCK=y # CONFIG_FTL is not set # CONFIG_NFTL is not set ...... # # Self-contained MTD device drivers # # CONFIG_MTD_PMC551 is not set # CONFIG_MTD_SLRAM is not set CONFIG_MTD_MTDRAM=y CONFIG_MTDRAM_TOTAL_SIZE=1024 CONFIG_MTDRAM_ERASE_SIZE=128 CONFIG_MTDRAM_ABS_POS=1E100000 Also I did the small change in the mtdram.c file - mtd_info->type = MTD_NORFLASH; mtd_info->flags = MTD_CAP_NORFLASH; Now, with the above cofiguration I am able to mount the File System from Flash. I am able to read the files. Also I can add/delete files. However, once I unmount the File System, none of the changes are reflected into Flash. So next time when I mount, I am not able to view my changes. It is all old stuff. I saw that the ram_write() function gets called during unmount. Do I need to use some other driver? Any test code/sample code is available for this? Any other suggestion are welcome. Regards, debashis
