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FREESCALE MX28EVK
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==================
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Supported hardware: only MX28EVK rev D is supported in U-boot.
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Files of the MX28EVK port
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--------------------------
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arch/arm/cpu/arm926ejs/mxs/ - The CPU support code for the Freescale i.MX28
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arch/arm/include/asm/arch-mxs/ - Header files for the Freescale i.MX28
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board/freescale/mx28evk/ - MX28EVK board specific files
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include/configs/mx28evk.h - MX28EVK configuration file
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Jumper configuration
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---------------------
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To boot MX28EVK from an SD card, set the boot mode DIP switches as:
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* Boot Mode Select: 1 0 0 1 (Boot from SD card Slot 0 - U42)
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* JTAG PSWITCH RESET: To the right (reset disabled)
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* Battery Source: Down
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* Wall 5V: Up
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* VDD 5V: To the left (off)
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* Hold Button: Down (off)
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To boot MX28EVK from SPI NOR flash, set the boot mode DIP switches as:
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* Boot Mode Select: 0 0 1 0 (Boot from SSP2)
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* JTAG PSWITCH RESET: To the right (reset disabled)
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* Battery Source: Down
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* Wall 5V: Up
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* VDD 5V: To the left (off)
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* Hold Button: Down (off)
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Environment Storage
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-------------------
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There are three targets for mx28evk:
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"make mx28evk_config" - store environment variables into MMC
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or
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"make mx28evk_nand_config" - store environment variables into NAND flash
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or
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"make mx28evk_spi_config" - store enviroment variables into SPI NOR flash
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Choose the target accordingly.
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Note: The mx28evk board does not come with a NAND flash populated from the
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factory. It comes with an empty slot (U23), which allows the insertion of a
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48-pin TSOP flash device.
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mx28evk does not come with SPI NOR flash populated from the factory either.
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It is possible to solder a SOIC memory on U49 or use a DIP8 on J89.
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To get SPI communication to work R320, R321,R322 and C178 need to be populated.
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Look in the schematics for the proper component values.
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Follow the instructions from doc/README.mxs to generate a bootable SD card or
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to generate a binary to be flashed into SPI NOR.
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