| Fabio Estevam | 607dfdf | 2012-03-24 10:58:57 +0000 | [diff] [blame] | 1 | FREESCALE MX28EVK |
| 2 | ================== |
| 3 | |
| Fabio Estevam | f4a7bf5 | 2014-11-10 10:34:26 -0200 | [diff] [blame] | 4 | Supported hardware: MX28EVK rev C and D are supported in U-boot. |
| Fabio Estevam | 607dfdf | 2012-03-24 10:58:57 +0000 | [diff] [blame] | 5 | |
| 6 | Files of the MX28EVK port |
| 7 | -------------------------- |
| 8 | |
| Otavio Salvador | 3a0398d | 2012-08-05 09:05:29 +0000 | [diff] [blame] | 9 | arch/arm/cpu/arm926ejs/mxs/ - The CPU support code for the Freescale i.MX28 |
| 10 | arch/arm/include/asm/arch-mxs/ - Header files for the Freescale i.MX28 |
| Fabio Estevam | 607dfdf | 2012-03-24 10:58:57 +0000 | [diff] [blame] | 11 | board/freescale/mx28evk/ - MX28EVK board specific files |
| 12 | include/configs/mx28evk.h - MX28EVK configuration file |
| 13 | |
| 14 | Jumper configuration |
| 15 | --------------------- |
| 16 | |
| 17 | To 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 Estevam | eeacb73 | 2012-05-12 08:16:46 +0000 | [diff] [blame] | 20 | * JTAG PSWITCH RESET: To the right (reset disabled) |
| Fabio Estevam | 607dfdf | 2012-03-24 10:58:57 +0000 | [diff] [blame] | 21 | * Battery Source: Down |
| 22 | * Wall 5V: Up |
| 23 | * VDD 5V: To the left (off) |
| 24 | * Hold Button: Down (off) |
| 25 | |
| Fabio Estevam | a81c90f | 2014-06-10 00:03:59 -0300 | [diff] [blame] | 26 | To 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 Estevam | ab461be | 2013-03-07 11:28:19 +0000 | [diff] [blame] | 34 | |
| 35 | Environment Storage |
| 36 | ------------------- |
| 37 | |
| Fabio Estevam | a81c90f | 2014-06-10 00:03:59 -0300 | [diff] [blame] | 38 | There are three targets for mx28evk: |
| Fabio Estevam | ab461be | 2013-03-07 11:28:19 +0000 | [diff] [blame] | 39 | |
| Robert P. J. Day | 1bce2ae | 2013-09-16 07:15:45 -0400 | [diff] [blame] | 40 | "make mx28evk_config" - store environment variables into MMC |
| Fabio Estevam | ab461be | 2013-03-07 11:28:19 +0000 | [diff] [blame] | 41 | |
| 42 | or |
| 43 | |
| Robert P. J. Day | 1bce2ae | 2013-09-16 07:15:45 -0400 | [diff] [blame] | 44 | "make mx28evk_nand_config" - store environment variables into NAND flash |
| Fabio Estevam | ab461be | 2013-03-07 11:28:19 +0000 | [diff] [blame] | 45 | |
| Fabio Estevam | a81c90f | 2014-06-10 00:03:59 -0300 | [diff] [blame] | 46 | or |
| 47 | |
| 48 | "make mx28evk_spi_config" - store enviroment variables into SPI NOR flash |
| 49 | |
| Fabio Estevam | ab461be | 2013-03-07 11:28:19 +0000 | [diff] [blame] | 50 | Choose the target accordingly. |
| 51 | |
| 52 | Note: The mx28evk board does not come with a NAND flash populated from the |
| 53 | factory. It comes with an empty slot (U23), which allows the insertion of a |
| 54 | 48-pin TSOP flash device. |
| 55 | |
| Fabio Estevam | a81c90f | 2014-06-10 00:03:59 -0300 | [diff] [blame] | 56 | mx28evk does not come with SPI NOR flash populated from the factory either. |
| 57 | It is possible to solder a SOIC memory on U49 or use a DIP8 on J89. |
| 58 | To get SPI communication to work R320, R321,R322 and C178 need to be populated. |
| 59 | Look in the schematics for the proper component values. |
| Fabio Estevam | 607dfdf | 2012-03-24 10:58:57 +0000 | [diff] [blame] | 60 | |
| Fabio Estevam | a81c90f | 2014-06-10 00:03:59 -0300 | [diff] [blame] | 61 | Follow the instructions from doc/README.mxs to generate a bootable SD card or |
| 62 | to generate a binary to be flashed into SPI NOR. |