Partition scheme
Changing the partition scheme may affect the boot loader update capability and / or the kernel command line parameters!
SD / eMMC images
Unpartitioned area [sector size = 512 byte, total size = 0x2000 sectors (4 MiB)]
Sector numbers are in hexadecimal (as expected by U-Boot's mmc command), size is given in hex (=number of sectors) and dezimal (= size in byte).
| Sectors | Size | ||||
|---|---|---|---|---|---|
| First | Last | Sectors | Byte | Contents | |
| 0x0000 | 0x0000 | 0x0001 (512 B) | MBR | ||
| 0x0001 | 0x0001 | 0x0001 (512 B) | reserved 1) | ||
| 0x0002 | 0x07ff | 0x07fe (1023 KiB) | u-boot | ||
| 0x0800 | 0x080f | 0x0010 (8 KiB | primary u-boot environment 2) | ||
| 0x0810 | 0x081f | 0x0010 (8 KiB | secondary u-boot environment 2) | ||
| 0x0820 | 0x0fff | 0x07e0 (1008 KiB | unused | ||
| 0x1000 | 0x17ff | 0x0800 (1 MiB | device tree blob | ||
| 0x1800 | 0x1fff | 0x0800 (1 MiB | unused | ||
| 1) for redundant Boot Support, for details see CPU reference Manual 2) redundant environment, cf. CONFIG_ENV_*_REDUND in U-Boot README | |||||
| Start … End | Size (sectors / byte) | Contents |
|---|---|---|
| 0x0000 … 0x0000 | 0x0001 sector / 512 B | MBR |
| 0x0001 … 0x0001 | 0x0001 sector / 512 B | reserved 1) |
| 0x0002 … 0x07ff | 0x07fe sectors / 1023 KiB | u-boot |
| 0x0800 … 0x080f | 0x0010 sectors / 8 KiB | primary u-boot environment 2) |
| 0x0810 … 0x081f | 0x0010 sectors / 8 KiB | secondary u-boot environment 2) |
| 0x0820 … 0x0fff | 0x07e0 sectors / 1008 KiB | unused |
| 0x1000 … 0x17ff | 0x0800 sectors / 1 MiB | device tree blob |
| 0x1800 … 0x1fff | 0x0800 sectors / 1 MiB | unused |
| 1) for redundant Boot Support, for details see CPU reference Manual 2) redundant environment, cf. CONFIG_ENV_*_REDUND in U-Boot README |
||
| Partitioned area: 0x106000 sectors / 520+ MiB | ||
| Partition | Size | Contents |
| 1 | 4 MiB | Kernel image 1) |
| 2 | 256 MiB | root FS |
| 3 | 256 MiB | Spare, not formatted |
| 4 | —- | —- |
| 1) raw partition | ||
The partition scheme is defined using the config file config/platform-tq-mba6x/config/uboot-hd.config. The creation of the image is controlled using the PTXdist packages image-uboot-tqma6<q|s>-hd.
To create the image the genimage host tool is used. This tool is automatically selected and built. You can find the build directory under <BSPROOT>/platform-MBa6x/build-host/genimage. There is also a README file documenting how to use this tool.
SPI NOR
Sector size = 64 KiB
| First sector | Last sector | Size (sectors) | Size (byte) | Contents |
|---|---|---|---|---|
| 0x00 | 0x07 | 0x08 sectors | 512 KiB | U-Boot 1) |
| 0x08 | 0x08 | 0x01 sector | 64 KiB | environment0 |
| 0x09 | 0x09 | 0x01 sector | 64 KiB | environment1 |
| 0x0a | 0x0a | 0x01 sector | 64 KiB | environment1 |
| 0x0b | 0x0f | 0x05 sectors | 372 KiB | devicetree |
| 0x10 | 0x70 | 0x60 sectors | 6 MiB | Kernel |
| 1) U-Boot image has to be written at address 0x400, cf. CPU Reference Manual for details | ||||
| First | Last | Size (sectors) | Size (byte) | Contents |
|---|---|---|---|---|
| 0 | 7 | 8 sectors | 512 KiB | U-Boot 1) |
| 8 | 8 | 1 sector | 64 KiB | environment0 |
| 9 | 9 | 1 sector | 64 KiB | environment1 |
| 10 | 14 | 5 sectors | 320 KiB | devicetree |
| 15 | 110 | 96 sectors | 6 MiB | Kernel |
| 1) U-Boot image has to be written at address 0x400, cf. CPU Reference Manual for details | ||||
TQ-Systems GmbH provides the Board Support Packages (BSP) free of charge. The software included in the shipment has been configured individually for the starter kits. The software is only intended to evaluate the module. The use of the Board Support Packages (BSP) is only allowed within the scope of functionality described by TQ-Systems GmbH. TQ-Systems GmbH does not accept any liability for all further changes of the Board Support Package and for any damage resulting from its use.