summaryrefslogtreecommitdiff
path: root/doc/README.nand
diff options
context:
space:
mode:
Diffstat (limited to 'doc/README.nand')
-rw-r--r--doc/README.nand23
1 files changed, 23 insertions, 0 deletions
diff --git a/doc/README.nand b/doc/README.nand
index 487548f..b91f198 100644
--- a/doc/README.nand
+++ b/doc/README.nand
@@ -208,6 +208,29 @@ Platform specific options
detection. However ECC calculation on such plaforms would still be
done by GPMC controller.
+ CONFIG_NAND_OMAP_ECCSCHEME
+ On OMAP platforms, this CONFIG specifies NAND ECC scheme.
+ It can take following values:
+ OMAP_ECC_HAM1_CODE_SW
+ 1-bit Hamming code using software lib.
+ (for legacy devices only)
+ OMAP_ECC_HAM1_CODE_HW
+ 1-bit Hamming code using GPMC hardware.
+ (for legacy devices only)
+ OMAP_ECC_BCH4_CODE_HW_DETECTION_SW
+ 4-bit BCH code (unsupported)
+ OMAP_ECC_BCH4_CODE_HW
+ 4-bit BCH code (unsupported)
+ OMAP_ECC_BCH8_CODE_HW_DETECTION_SW
+ 8-bit BCH code with
+ - ecc calculation using GPMC hardware engine,
+ - error detection using software library.
+ - requires CONFIG_BCH to enable software BCH library
+ (For legacy device which do not have ELM h/w engine)
+ OMAP_ECC_BCH8_CODE_HW
+ 8-bit BCH code with
+ - ecc calculation using GPMC hardware engine,
+ - error detection using ELM hardware engine.
NOTE:
=====