ARM DaVinci: Fix broken HW ECC for large page NAND.

[u-boot] / doc / README.nand

diff --git a/doc/README.nand b/doc/README.nand
index 171380e274fa4a2784a150de29ff9b3fc17598d9..6dac24cd90adcfb0eb8e73892882ce27ea8cd955 100644 (file)
--- a/doc/README.nand
+++ b/doc/README.nand
@@ -174,6 +174,14 @@ More Definitions:
    #define NAND_MAX_FLOORS 1
    #define NAND_MAX_CHIPS 1
 
+   #define CFG_DAVINCI_BROKEN_ECC
+      Versions of U-Boot <= 1.3.3 and Montavista Linux kernels
+      generated bogus ECCs on large-page NAND. Both large and small page
+      NAND ECCs were incompatible with the Linux davinci git tree (since
+      NAND was integrated in 2.6.24).
+      Turn this ON if you want backwards compatibility.
+      Turn this OFF if you want U-Boot and the Linux davinci git kernel
+      to use the same ECC format.
 
 NOTE:
 =====