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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/board/freescale/mx28evk/README | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/freescale/mx28evk/README')
-rw-r--r-- | roms/u-boot/board/freescale/mx28evk/README | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/roms/u-boot/board/freescale/mx28evk/README b/roms/u-boot/board/freescale/mx28evk/README new file mode 100644 index 000000000..d32f0efb3 --- /dev/null +++ b/roms/u-boot/board/freescale/mx28evk/README @@ -0,0 +1,62 @@ +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. |