A DEVICE DRIVER FOR NAND FLASH MEMORY CONTROLLER IN OPEN POWER A2O PROCESSOR

AMBA AXI4 is the fourth generation of the AMBA interface specification from ARM. AXI is a Parallel high performance, synchronous, high frequency, multi-master multi-slave communication interface. Flash memory is a non-volatile electronic computer memory storage medium that can be erased and reprogrammed electrically. Flash memory is widely used for storage and data transfer in consumer devices ,enter prise systems and industrial applications, .NAND flash memory is a type of non-volatile storage technology that does not require power to retain data. An important goal of NAND flash development has been to reduce the cost per bit and to increase maximum chip capacity so that flash memory can compete with magnetic storage devices such as hard disks.Device drivers are software interfaces between software applications and hardware devices .As part of complex operating system, device drivers are considered extremely difficult to develop. They are usually developed in low-level programming languages, such as C. Code written in C language will be converted into binary which is fed into processor to perform operations with desired module. This project we write the test cases for NAND flash memory through AXI4 bus interface which is connected to A2O core. Tools required for design and development of driver is GCC compiler and C language will be used to develop drivers