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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.nand | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/README.nand b/doc/README.nand index 3a507b6c8..ce7ea5e1e 100644 --- a/doc/README.nand +++ b/doc/README.nand @@ -179,6 +179,25 @@ Configuration Options: Please convert your driver even if you don't need the extra flexibility, so that one day we can eliminate the old mechanism. + +Platform specific options +========================= + CONFIG_NAND_OMAP_GPMC + Enables omap_gpmc.c driver for OMAPx and AMxxxx platforms. + GPMC controller is used for parallel NAND flash devices, and can + do ECC calculation (not ECC error detection) for HAM1, BCH4, BCH8 + and BCH16 ECC algorithms. + + CONFIG_NAND_OMAP_ELM + Enables omap_elm.c driver for OMAPx and AMxxxx platforms. + ELM controller is used for ECC error detection (not ECC calculation) + of BCH4, BCH8 and BCH16 ECC algorithms. + Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine, + thus such SoC platforms need to depend on software library for ECC error + detection. However ECC calculation on such plaforms would still be + done by GPMC controller. + + NOTE: ===== |