This enables support for accessing all type of OneNAND flash devices. For further information see <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm>
This adds an extra check when data is written to the flash. The OneNAND flash device internally checks only bits transitioning from 1 to 0. There is a rare possibility that even though the device thinks the write was successful, a bit could have been flipped accidentally due to device wear or something else.
Support for OneNAND flash via platform device driver.
Support for a OneNAND flash device connected to an OMAP2/OMAP3 CPU via the GPMC memory controller.
Support for a OneNAND flash device connected to an Samsung SOC. S3C64XX/S5PC100 use command mapping method. S5PC110/S5PC210 use generic OneNAND method.
One Block of the NAND Flash Array memory is reserved as a One-Time Programmable Block memory area. Also, 1st Block of NAND Flash Array can be used as OTP. The OTP block can be read, programmed and locked using the same operations as any other NAND Flash Array memory block. OTP block cannot be erased. OTP block is fully-guaranteed to be a valid block.
The 2X Program is an extension of Program Operation. Since the device is equipped with two DataRAMs, and two-plane NAND Flash memory array, these two component enables simultaneous program of 4KiB. Plane1 has only even blocks such as block0, block2, block4 while Plane2 has only odd blocks such as block1, block3, block5. So MTD regards it as 4KiB page size and 256KiB block size Now the following chips support it. (KFXXX16Q2M) Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M, Mux: KFM2G16Q2M, KFN4G16Q2M, And more recent chips
The simulator may simulate various OneNAND flash chips for the OneNAND MTD layer.