The ONFI NAND Controller Software Driver is developed as the bridge for the Linux MTD subsystem to communicate to the NAND devices. The modular NAND Controller Driver is architected to be easily ported to different operating systems with minimum efforts.
The Driver consists of three layers – the Interface layer, Hardware layer and OS Abstraction Layer.
Diagram
Features
Compliant with ONFI 3.2 and backward compatible to ONFI 3.0, 2.3 and 1.0
Supports SDR, NV-DDR and NV-DDR2, Toggle DDR/DDR2 modes
Easy-to-use interface for applications
Support up to NAND with 16K page size
Fully documented generic device operation APIv
Supports Read, Program and Erase Operations
Supports Cache Program, Cache Sequential and Random Read Operations
Supports LUN Resets, Multi LUN/DIE Operations
Supports On Die Termination
Supports Interleaving Operations
Easily portable to any OS, processors or hardware
Deliverables
Source code in c language and binaries for ONFI NAND Controller driver.
User Manual
Benefits
System manufacturers can port the ONFI NAND Controller Driver to respective system hardware and operating systems
Silicon developers can use the driver and board environment to test the device silicon during development
Silicon vendors can use the driver to create a reference system design for their customers
