path: root/Documentation/arm
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authorBen Dooks <ben-mtd@fluff.org>2008-04-15 10:36:19 (GMT)
committerDavid Woodhouse <dwmw2@infradead.org>2008-04-22 20:39:16 (GMT)
commit71d54f3855b4ca98559e8782350336ec2433cc24 (patch)
tree3ea9c792bc9a4bfb2356648e1b719bd24fd03cc5 /Documentation/arm
parent0916083210039bf3d186a87522cc806dc21b7097 (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')
2 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/arm/Samsung-S3C24XX/NAND.txt b/Documentation/arm/Samsung-S3C24XX/NAND.txt
new file mode 100644
index 0000000..bc478a3
--- /dev/null
+++ b/Documentation/arm/Samsung-S3C24XX/NAND.txt
@@ -0,0 +1,30 @@
+ S3C24XX NAND Support
+ ====================
+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
diff --git a/Documentation/arm/Samsung-S3C24XX/Overview.txt b/Documentation/arm/Samsung-S3C24XX/Overview.txt
index c31b76f..d04e1e3 100644
--- a/Documentation/arm/Samsung-S3C24XX/Overview.txt
+++ b/Documentation/arm/Samsung-S3C24XX/Overview.txt
@@ -156,6 +156,8 @@ NAND
controller. If there are any problems the latest linux-mtd
code can be found from http://www.linux-mtd.infradead.org/
+ For more information see Documentation/arm/Samsung-S3C24XX/NAND.txt

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