diff options
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 000000000000..bc478a3409b8 --- /dev/null +++ b/Documentation/arm/Samsung-S3C24XX/NAND.txt | |||
@@ -0,0 +1,30 @@ | |||
1 | S3C24XX NAND Support | ||
2 | ==================== | ||
3 | |||
4 | Introduction | ||
5 | ------------ | ||
6 | |||
7 | Small Page NAND | ||
8 | --------------- | ||
9 | |||
10 | The driver uses a 512 byte (1 page) ECC code for this setup. The | ||
11 | ECC code is not directly compatible with the default kernel ECC | ||
12 | code, so the driver enforces its own OOB layout and ECC parameters | ||
13 | |||
14 | Large Page NAND | ||
15 | --------------- | ||
16 | |||
17 | The driver is capable of handling NAND flash with a 2KiB page | ||
18 | size, with support for hardware ECC generation and correction. | ||
19 | |||
20 | Unlike the 512byte page mode, the driver generates ECC data for | ||
21 | each 256 byte block in an 2KiB page. This means that more than | ||
22 | one error in a page can be rectified. It also means that the | ||
23 | OOB layout remains the default kernel layout for these flashes. | ||
24 | |||
25 | |||
26 | Document Author | ||
27 | --------------- | ||
28 | |||
29 | Ben Dooks, Copyright 2007 Simtec Electronics | ||
30 | |||