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- ----------------------------------------
- Booting from On-Chip ROM (eSDHC or eSPI)
- ----------------------------------------
- boot_format is a tool to write SD bootable images to a filesystem and build
- SD/SPI images to a binary file for writing later.
- When booting from an SD card/MMC, boot_format puts the configuration file and
- the RAM-based U-Boot image on the card.
- When booting from an EEPROM, boot_format generates a binary image that is used
- to boot from this EEPROM.
- Where to get boot_format:
- ========================
- you can browse it online at:
- http://git.freescale.com/git/cgit.cgi/ppc/sdk/boot-format.git/
- Building
- ========
- Run the following to build this project
- $ make
- Execution
- =========
- boot_format runs under a regular Linux machine and requires a super user mode
- to run. Execute boot_format as follows.
- For building SD images by writing directly to a file system on SD media:
- $ boot_format $config u-boot.bin -sd $device
- Where $config is the included config.dat file for your platform and $device
- is the target block device for the SD media on your computer.
- For build binary images directly a local file:
- $ boot_format $config u-boot.bin -spi $file
- Where $file is the target file. Also keep in mind the u-boot.bin file needs
- to be the u-boot built for your particular platform and target media.
- Example: To generate a u-boot.bin for a P1022DS booting from SD, run the
- following in the u-boot repository:
- $ make P1022DS_SDCARD
- Configuration Files
- ===================
- Below are the configuration files to be used with a particular platform. Keep
- in mind that some of these config files are tied to the platforms DDR speed.
- Please see the SoC reference manual for more documentation.
- P1022DS config_sram_p1022ds.dat
- P2020DS config_sram_p2020ds.dat
- P1020RDB config_ddr2_1g_p1020rdb_533M.dat
- P1020RDB config_ddr2_1g_p1020rdb_667M.dat
- P2020RDB config_ddr2_1g_p2020rdb_800M.dat
- P2020RDB config_ddr2_1g_p2020rdb_667M.dat
- P2020RDB config_ddr3_1gb_64bit_p2020rdb_pc.dat
- P1020RDB config_ddr3_1gb_p1_p2_rdb_pc_800M.dat
- P1011RDB config_ddr3_1gb_p1_p2_rdb_pc_800M.dat
- P1010RDB config_ddr3_1gb_p1010rdb_800M.dat
- P1021RDB config_ddr3_1gb_p1_p2_rdb_pc_800M.dat
- P1022DS config_ddr3_2gb_p1022ds.dat
- P1024RDB config_ddr3_1gb_p1_p2_rdb_pc_667M.dat
- P1025RDB config_ddr3_1gb_p1_p2_rdb_pc_667M.dat
- P1016RDB config_ddr3_1gb_p1_p2_rdb_pc_667M.dat
- P1020UTM config_ddr3_1gb_p1_p2_rdb_pc_800M.dat
- P1020MBG config_ddr3_1gb_p1_p2_rdb_pc_800M.dat
- MPC8536DS config_ddr2_512m_mpc8536ds_667M.dat
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