| ---------------------------------------- |
| 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 |
