1menuconfig MTD_ONENAND 2 tristate "OneNAND Device Support" 3 depends on MTD 4 select MTD_PARTITIONS 5 help 6 This enables support for accessing all type of OneNAND flash 7 devices. For further information see 8 <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm> 9 10if MTD_ONENAND 11 12config MTD_ONENAND_VERIFY_WRITE 13 bool "Verify OneNAND page writes" 14 help 15 This adds an extra check when data is written to the flash. The 16 OneNAND flash device internally checks only bits transitioning 17 from 1 to 0. There is a rare possibility that even though the 18 device thinks the write was successful, a bit could have been 19 flipped accidentally due to device wear or something else. 20 21config MTD_ONENAND_GENERIC 22 tristate "OneNAND Flash device via platform device driver" 23 help 24 Support for OneNAND flash via platform device driver. 25 26config MTD_ONENAND_OMAP2 27 tristate "OneNAND on OMAP2/OMAP3 support" 28 depends on ARCH_OMAP2 || ARCH_OMAP3 29 help 30 Support for a OneNAND flash device connected to an OMAP2/OMAP3 CPU 31 via the GPMC memory controller. 32 33config MTD_ONENAND_SAMSUNG 34 tristate "OneNAND on Samsung SOC controller support" 35 depends on ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210 36 help 37 Support for a OneNAND flash device connected to an Samsung SOC 38 S3C64XX/S5PC1XX controller. 39 40config MTD_ONENAND_OTP 41 bool "OneNAND OTP Support" 42 select HAVE_MTD_OTP 43 help 44 One Block of the NAND Flash Array memory is reserved as 45 a One-Time Programmable Block memory area. 46 Also, 1st Block of NAND Flash Array can be used as OTP. 47 48 The OTP block can be read, programmed and locked using the same 49 operations as any other NAND Flash Array memory block. 50 OTP block cannot be erased. 51 52 OTP block is fully-guaranteed to be a valid block. 53 54config MTD_ONENAND_2X_PROGRAM 55 bool "OneNAND 2X program support" 56 help 57 The 2X Program is an extension of Program Operation. 58 Since the device is equipped with two DataRAMs, and two-plane NAND 59 Flash memory array, these two component enables simultaneous program 60 of 4KiB. Plane1 has only even blocks such as block0, block2, block4 61 while Plane2 has only odd blocks such as block1, block3, block5. 62 So MTD regards it as 4KiB page size and 256KiB block size 63 64 Now the following chips support it. (KFXXX16Q2M) 65 Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M, 66 Mux: KFM2G16Q2M, KFN4G16Q2M, 67 68 And more recent chips 69 70config MTD_ONENAND_SIM 71 tristate "OneNAND simulator support" 72 help 73 The simulator may simulate various OneNAND flash chips for the 74 OneNAND MTD layer. 75 76endif # MTD_ONENAND 77