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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>
30 lines
798 B
Text
30 lines
798 B
Text
S3C24XX NAND Support
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====================
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Introduction
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------------
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Small Page NAND
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---------------
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The driver uses a 512 byte (1 page) ECC code for this setup. The
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ECC code is not directly compatible with the default kernel ECC
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code, so the driver enforces its own OOB layout and ECC parameters
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Large Page NAND
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---------------
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The driver is capable of handling NAND flash with a 2KiB page
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size, with support for hardware ECC generation and correction.
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Unlike the 512byte page mode, the driver generates ECC data for
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each 256 byte block in an 2KiB page. This means that more than
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one error in a page can be rectified. It also means that the
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OOB layout remains the default kernel layout for these flashes.
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Document Author
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---------------
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Ben Dooks, Copyright 2007 Simtec Electronics
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