diff options
| author | Ben Dooks <ben-mtd@fluff.org> | 2008-04-15 11:36:19 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2008-04-22 21:39:16 +0100 |
| commit | 71d54f3855b4ca98559e8782350336ec2433cc24 (patch) | |
| tree | 3ea9c792bc9a4bfb2356648e1b719bd24fd03cc5 /Documentation/arm/Samsung-S3C24XX/NAND.txt | |
| parent | 0916083210039bf3d186a87522cc806dc21b7097 (diff) | |
[MTD] [NAND] S3C2410 Large page NAND support
This adds support for using large page NAND devices
with the S3C24XX NAND controller. This also adds the
file Documentation/arm/Samsung-S3C24XX/NAND.txt to
describe the differences.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'Documentation/arm/Samsung-S3C24XX/NAND.txt')
| -rw-r--r-- | Documentation/arm/Samsung-S3C24XX/NAND.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/arm/Samsung-S3C24XX/NAND.txt b/Documentation/arm/Samsung-S3C24XX/NAND.txt new file mode 100644 index 00000000000..bc478a3409b --- /dev/null +++ b/Documentation/arm/Samsung-S3C24XX/NAND.txt @@ -0,0 +1,30 @@ + S3C24XX NAND Support + ==================== + +Introduction +------------ + +Small Page NAND +--------------- + +The driver uses a 512 byte (1 page) ECC code for this setup. The +ECC code is not directly compatible with the default kernel ECC +code, so the driver enforces its own OOB layout and ECC parameters + +Large Page NAND +--------------- + +The driver is capable of handling NAND flash with a 2KiB page +size, with support for hardware ECC generation and correction. + +Unlike the 512byte page mode, the driver generates ECC data for +each 256 byte block in an 2KiB page. This means that more than +one error in a page can be rectified. It also means that the +OOB layout remains the default kernel layout for these flashes. + + +Document Author +--------------- + +Ben Dooks, Copyright 2007 Simtec Electronics + |