Convert eMMC to pSLC

To ease converting the userspace of the eMMC to pSLC, TQ Systems has extended the functionality of U-Boot.

Please Note:
The following instructions have been tested on the

TQMa6x BSP REV.113
TQMa7x BSP REV.105
TQMa6ULx BSP REV.104
TQMLS102xA BSP REV.109

The hardware partitioning of the eMMC is a one-time, non-reversible action.A all data on the eMMC gets lost when converting.

Set Starterkit to boot from eMMC please see the appropriate wiki page how to set the DIP switches:
TQMa6x
TQMa7x
TQMa6ULx
TQMLS102xA
Interrupt Boot process in U-Boot
Determine the maximum 512-byte blocks usable for hardware partitioning:

mmc rescan
mmc maxhwpartsectors

Example

=> mmc rescan
=> mmc maxhwpartsectors
maxhwpartsectors: 6d4000
=>

Check Partition configuration:

mmc hwpartition user enh 0 0x${maxhwpartsectors} wrrel on check

Example

=> mmc hwpartition user enh 0 0x${maxhwpartsectors} wrrel on check
Partition configuration:
        User Enhanced Start: 0 Bytes
        User Enhanced Size: 3.4 GiB
        User partition write reliability: on
        No GP1 partition
        No GP2 partition
        No GP3 partition
        No GP4 partition
=>

Convert eMMC to pSLC:

mmc hwpartition user enh 0 0x${maxhwpartsectors} wrrel on complete

After power cycle, settings will be applied

Disclaimer
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.

Convert eMMC to pSLC

Converting eMMC to pSLC: