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 c6c3d3783072cc9abf5ba448ad1191d563a1be1e..76db474bfb63e3ee7c8c64e377f122d575a8e865 100644 (file)
--- a/doc/README.mx28evk
+++ b/doc/README.mx28evk
@@ -6,8 +6,8 @@ Supported hardware: only MX28EVK rev D is supported in U-boot.
 Files of the MX28EVK port
 --------------------------
 
-arch/arm/cpu/arm926ejs/mx28/   - The CPU support code for the Freescale i.MX28
-arch/arm/include/asm/arch-mx28/        - Header files for the Freescale i.MX28
+arch/arm/cpu/arm926ejs/mxs/    - The CPU support code for the Freescale i.MX28
+arch/arm/include/asm/arch-mxs/ - Header files for the Freescale i.MX28
 board/freescale/mx28evk/       - MX28EVK board specific files
 include/configs/mx28evk.h      - MX28EVK configuration file
 
@@ -17,12 +17,30 @@ Jumper configuration
 To boot MX28EVK from an SD card, set the boot mode DIP switches as:
 
    * Boot Mode Select: 1 0 0 1 (Boot from SD card Slot 0 - U42)
-   * JTAG PSWITCH RESET: To the left (reset enabled)
+   * JTAG PSWITCH RESET: To the right (reset disabled)
    * Battery Source: Down
    * Wall 5V: Up
    * 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.