projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 71d54f38 BD |
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 |