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Fabio Estevam607dfdf2012-03-24 10:58:57 +00001FREESCALE MX28EVK
2==================
3
Bin Menga1875592016-02-05 19:30:11 -08004Supported hardware: MX28EVK rev C and D are supported in U-Boot.
Fabio Estevam607dfdf2012-03-24 10:58:57 +00005
6Files of the MX28EVK port
7--------------------------
8
Otavio Salvador3a0398d2012-08-05 09:05:29 +00009arch/arm/cpu/arm926ejs/mxs/ - The CPU support code for the Freescale i.MX28
10arch/arm/include/asm/arch-mxs/ - Header files for the Freescale i.MX28
Fabio Estevam607dfdf2012-03-24 10:58:57 +000011board/freescale/mx28evk/ - MX28EVK board specific files
12include/configs/mx28evk.h - MX28EVK configuration file
13
14Jumper configuration
15---------------------
16
17To boot MX28EVK from an SD card, set the boot mode DIP switches as:
18
19 * Boot Mode Select: 1 0 0 1 (Boot from SD card Slot 0 - U42)
Fabio Estevameeacb732012-05-12 08:16:46 +000020 * JTAG PSWITCH RESET: To the right (reset disabled)
Fabio Estevam607dfdf2012-03-24 10:58:57 +000021 * Battery Source: Down
22 * Wall 5V: Up
23 * VDD 5V: To the left (off)
24 * Hold Button: Down (off)
25
Fabio Estevama81c90f2014-06-10 00:03:59 -030026To boot MX28EVK from SPI NOR flash, set the boot mode DIP switches as:
27
28 * Boot Mode Select: 0 0 1 0 (Boot from SSP2)
29 * JTAG PSWITCH RESET: To the right (reset disabled)
30 * Battery Source: Down
31 * Wall 5V: Up
32 * VDD 5V: To the left (off)
33 * Hold Button: Down (off)
Fabio Estevamab461be2013-03-07 11:28:19 +000034
35Environment Storage
36-------------------
37
Fabio Estevama81c90f2014-06-10 00:03:59 -030038There are three targets for mx28evk:
Fabio Estevamab461be2013-03-07 11:28:19 +000039
Robert P. J. Day1bce2ae2013-09-16 07:15:45 -040040"make mx28evk_config" - store environment variables into MMC
Fabio Estevamab461be2013-03-07 11:28:19 +000041
42or
43
Robert P. J. Day1bce2ae2013-09-16 07:15:45 -040044"make mx28evk_nand_config" - store environment variables into NAND flash
Fabio Estevamab461be2013-03-07 11:28:19 +000045
Fabio Estevama81c90f2014-06-10 00:03:59 -030046or
47
48"make mx28evk_spi_config" - store enviroment variables into SPI NOR flash
49
Fabio Estevamab461be2013-03-07 11:28:19 +000050Choose the target accordingly.
51
52Note: The mx28evk board does not come with a NAND flash populated from the
53factory. It comes with an empty slot (U23), which allows the insertion of a
5448-pin TSOP flash device.
55
Fabio Estevama81c90f2014-06-10 00:03:59 -030056mx28evk does not come with SPI NOR flash populated from the factory either.
57It is possible to solder a SOIC memory on U49 or use a DIP8 on J89.
58To get SPI communication to work R320, R321,R322 and C178 need to be populated.
59Look in the schematics for the proper component values.
Fabio Estevam607dfdf2012-03-24 10:58:57 +000060
Fabio Estevama81c90f2014-06-10 00:03:59 -030061Follow the instructions from doc/README.mxs to generate a bootable SD card or
62to generate a binary to be flashed into SPI NOR.