USB ehci freescale support

[oweals/u-boot.git] / doc / README.nand

diff --git a/doc/README.nand b/doc/README.nand
index 0ad5e18dd396bd85877ea4140d59c344a57b93b1..fc62f92e08503071d1d2702eb715ca91422f68f3 100644 (file)
--- a/doc/README.nand
+++ b/doc/README.nand
@@ -95,7 +95,7 @@ Configuration Options:
       CONFIG_MTD_NAND_ECC_YAFFS would be another useful choice for
       someone to implement.
 
       CONFIG_MTD_NAND_ECC_YAFFS would be another useful choice for
       someone to implement.
 

-   CFG_MAX_NAND_DEVICE
+   CONFIG_SYS_MAX_NAND_DEVICE

       The maximum number of NAND devices you want to support.
 
 NAND Interface:
       The maximum number of NAND devices you want to support.
 
 NAND Interface:


@@ -164,7 +164,7 @@ More Definitions:
    These definitions are needed in the board configuration for now, but
    may really belong in a header file.
    TODO: Figure which ones are truly configuration settings and rename
    These definitions are needed in the board configuration for now, but
    may really belong in a header file.
    TODO: Figure which ones are truly configuration settings and rename

-        them to CFG_NAND_... and move the rest somewhere appropriate.
+        them to CONFIG_SYS_NAND_... and move the rest somewhere appropriate.

 
    #define SECTORSIZE 512
    #define ADDR_COLUMN 1
 
    #define SECTORSIZE 512
    #define ADDR_COLUMN 1


@@ -172,8 +172,16 @@ More Definitions:
    #define ADDR_COLUMN_PAGE 3
    #define NAND_ChipID_UNKNOWN 0x00
    #define NAND_MAX_FLOORS 1
    #define ADDR_COLUMN_PAGE 3
    #define NAND_ChipID_UNKNOWN 0x00
    #define NAND_MAX_FLOORS 1

-   #define NAND_MAX_CHIPS 1
+   #define CONFIG_SYS_NAND_MAX_CHIPS 1

 
 

+   #define CONFIG_SYS_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:
 =====
 
 NOTE:
 =====


@@ -184,7 +192,7 @@ We now use a complete rewrite of the NAND code based on what is in
 The old NAND handling code has been re-factored and is now confined
 to only board-specific files and - unfortunately - to the DoC code
 (see below). A new configuration variable has been introduced:
 The old NAND handling code has been re-factored and is now confined
 to only board-specific files and - unfortunately - to the DoC code
 (see below). A new configuration variable has been introduced:

-CFG_NAND_LEGACY, which has to be defined in the board config file if
+CONFIG_NAND_LEGACY, which has to be defined in the board config file if

 that board uses legacy code.
 
 The necessary changes have been made to all affected boards, and no
 that board uses legacy code.
 
 The necessary changes have been made to all affected boards, and no