doc/ramboot.mpc85xx: Documented the RAMBOOT for MPC85xx

[karo-tx-uboot.git] / doc / README.mx28evk

diff --git a/doc/README.mx28evk b/doc/README.mx28evk
index 2fc50696f5ef3175ea5211565d59f33d1280aedd..76db474bfb63e3ee7c8c64e377f122d575a8e865 100644 (file)
--- a/doc/README.mx28evk
+++ b/doc/README.mx28evk
@@ -23,6 +23,24 @@ To boot MX28EVK from an SD card, set the boot mode DIP switches as:
    * VDD 5V: To the left (off)
    * Hold Button: Down (off)
 
+
+Environment Storage
+-------------------
+
+There are two targets for mx28evk:
+
+"make mx28evk_config"          - store enviroment variables into MMC
+
+or
+
+"make mx28evk_nand_config"     - store enviroment variables into NAND flash
+
+Choose the target accordingly.
+
+Note: The mx28evk board does not come with a NAND flash populated from the
+factory. It comes with an empty slot (U23), which allows the insertion of a
+48-pin TSOP flash device.
+
 Follow the instructions from doc/README.mx28_common to generate a bootable SD
 card.