| Kyungmin Park | cd5f634 | 2005-07-11 11:41:53 +0100 | [diff] [blame] | 1 | # |
| 2 | # linux/drivers/mtd/onenand/Kconfig |
| 3 | # |
| 4 | |
| Jan Engelhardt | ec98c68 | 2007-04-19 16:21:41 -0500 | [diff] [blame] | 5 | menuconfig MTD_ONENAND |
| Kyungmin Park | cd5f634 | 2005-07-11 11:41:53 +0100 | [diff] [blame] | 6 | tristate "OneNAND Device Support" |
| 7 | depends on MTD |
| 8 | help |
| 9 | This enables support for accessing all type of OneNAND flash |
| 10 | devices. For further information see |
| Kyungmin Park | c19df27 | 2007-04-25 11:05:48 +0100 | [diff] [blame^] | 11 | <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm> |
| Kyungmin Park | cd5f634 | 2005-07-11 11:41:53 +0100 | [diff] [blame] | 12 | |
| Jan Engelhardt | ec98c68 | 2007-04-19 16:21:41 -0500 | [diff] [blame] | 13 | if MTD_ONENAND |
| 14 | |
| Kyungmin Park | cd5f634 | 2005-07-11 11:41:53 +0100 | [diff] [blame] | 15 | config MTD_ONENAND_VERIFY_WRITE |
| 16 | bool "Verify OneNAND page writes" |
| Kyungmin Park | cd5f634 | 2005-07-11 11:41:53 +0100 | [diff] [blame] | 17 | help |
| 18 | This adds an extra check when data is written to the flash. The |
| 19 | OneNAND flash device internally checks only bits transitioning |
| 20 | from 1 to 0. There is a rare possibility that even though the |
| 21 | device thinks the write was successful, a bit could have been |
| Matt LaPlante | 0950960 | 2006-10-03 22:31:37 +0200 | [diff] [blame] | 22 | flipped accidentally due to device wear or something else. |
| Kyungmin Park | cd5f634 | 2005-07-11 11:41:53 +0100 | [diff] [blame] | 23 | |
| Kyungmin Park | 68ee4b1 | 2005-09-09 07:39:50 +0100 | [diff] [blame] | 24 | config MTD_ONENAND_GENERIC |
| Thomas Gleixner | 46d0d0f | 2005-11-07 01:14:05 +0100 | [diff] [blame] | 25 | tristate "OneNAND Flash device via platform device driver" |
| Jan Engelhardt | ec98c68 | 2007-04-19 16:21:41 -0500 | [diff] [blame] | 26 | depends on ARM |
| Kyungmin Park | 68ee4b1 | 2005-09-09 07:39:50 +0100 | [diff] [blame] | 27 | help |
| Thomas Gleixner | 46d0d0f | 2005-11-07 01:14:05 +0100 | [diff] [blame] | 28 | Support for OneNAND flash via platform device driver. |
| Kyungmin Park | 68ee4b1 | 2005-09-09 07:39:50 +0100 | [diff] [blame] | 29 | |
| Kyungmin Park | 493c646 | 2006-05-12 17:03:07 +0300 | [diff] [blame] | 30 | config MTD_ONENAND_OTP |
| 31 | bool "OneNAND OTP Support" |
| Kyungmin Park | 493c646 | 2006-05-12 17:03:07 +0300 | [diff] [blame] | 32 | help |
| 33 | One Block of the NAND Flash Array memory is reserved as |
| 34 | a One-Time Programmable Block memory area. |
| 35 | Also, 1st Block of NAND Flash Array can be used as OTP. |
| 36 | |
| 37 | The OTP block can be read, programmed and locked using the same |
| 38 | operations as any other NAND Flash Array memory block. |
| 39 | OTP block cannot be erased. |
| 40 | |
| 41 | OTP block is fully-guaranteed to be a valid block. |
| 42 | |
| Jan Engelhardt | ec98c68 | 2007-04-19 16:21:41 -0500 | [diff] [blame] | 43 | endif # MTD_ONENAND |