WORK IN PROGRESS
Embedded module TQMa8Xx - YOCTO Linux BSP documentation
Linux kernel does not start with sumo.TQMa8.BSP.SW.0005 on MBa8Xx ≤ Rev.0101
| Details | |
|---|---|
| Effect | Linux kernel does not start (no more messages after Starting kernel…) |
| Issue | PCIe requires external clock generator |
| Affected Revisions | |
| Bsp | sumo.TQMa8Xx.BSP.SW.0002 sumo.TQMa8.BSP.SW.0005 |
| Module | all revisions |
| Mainboard | MBa8Xx ≤ Rev.0101 |
| Solution | |
| Fix | Upgrade to MBa8Xx Rev.0102 (please contact TQ Support for further information) |
| Workaround | Use devicetree with disabled PCIe interface (will be included in next BSP release) |
PCIe device detection
| Details | |
|---|---|
| Effect | Some PCIe devices (e.g. PCIe switches) may not be properly detected |
| Issue | PCIe signals clock, enable and reset do not comply to the PCIe specification |
| Affected Revisions | |
| Bsp | ≤ sumo.TQMa8.BSP.SW.0005 |
| Module | all revisions |
| Mainboard | MBa8Xx ≥ Rev.0102 |
| Solution | |
| Fix | TBD |
| Workaround | Limit PCIe speed to Gen1 by using proper devicetree *-pcie-gen1.dtb (provided with BSP release sumo.TQMa8.BSP.SW.0006) |
No QSPI NOR Flash support in U-Boot
| Details | |
|---|---|
| Effect | Executing sf probe in U-Boot causes the first byte of the QSPI NOR Flash to be overwritten |
| Issue | QSPI NOR Flash is not suppported in U-Boot |
| Affected Revisions | |
| Bsp | sumo.TQMa8.BSP.SW.0005 |
| Module | all revisions |
| Mainboard | all revisions |
| Solution | |
| Fix | TBD |
| Workaround | N/A |
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.
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.