Hi rui, MTD stands for Memory Technology Device and all MTD stuff in uClinux refers to the ability of uCLinux to support these devices. An example of MTD device is a simple RAM or Flash memory.
MTD_UCLINUX is the main flag you must turn on in order to add support for MTD's such as a flash memory. MTD_PHYSMAP is the actual mapping configuration of the MTD in your system. A CFI flash is a flash memory able to identify itself by providing a standard protocol. Probably your board's flash is a CFI one (see its datasheet). MTD implements a some sort of physical layer between the memory device and an application such as JFFS2 filesystem or mtd-utils (erase, eraseall...). If you want to use your flash as a JFFS2 based disk, you must turn on MTD support. uCLinux comes with several flash drivers so your flash will be probably supported. If no driver is available for your flash, then I am afraid you shall implement one. The PHYSMAP feature lets you mapping your flash. Summarizing, if you want to mount JFFS2 into your flash, you should enable MTD support and map your flash depending on your system. Hope this helps _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
