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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/board/freescale/mx28evk/README
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
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+FREESCALE MX28EVK
+==================
+
+Supported hardware: MX28EVK rev C and D are supported in U-Boot.
+
+Files of the MX28EVK port
+--------------------------
+
+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
+
+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 right (reset disabled)
+ * Battery Source: Down
+ * Wall 5V: Up
+ * VDD 5V: To the left (off)
+ * Hold Button: Down (off)
+
+To boot MX28EVK from SPI NOR flash, set the boot mode DIP switches as:
+
+ * Boot Mode Select: 0 0 1 0 (Boot from SSP2)
+ * 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 three targets for mx28evk:
+
+"make mx28evk_config" - store environment variables into MMC
+
+or
+
+"make mx28evk_nand_config" - store environment variables into NAND flash
+
+or
+
+"make mx28evk_spi_config" - store environment variables into SPI NOR 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.
+
+mx28evk does not come with SPI NOR flash populated from the factory either.
+It is possible to solder a SOIC memory on U49 or use a DIP8 on J89.
+To get SPI communication to work R320, R321,R322 and C178 need to be populated.
+Look in the schematics for the proper component values.
+
+Follow the instructions from doc/imx/common/mxs.txt to generate a bootable
+SD card or to generate a binary to be flashed into SPI NOR.