~~NOCACHE~~

{{template>intern:tabs|lang="intern"|mod_name="TQMa6x"|mod_name_code="tqma6x"|mod_arch="tab_test"|stk_name="STKa6x"|bsp_name="Linux"|bl_name="u-boot"|bl_version="2013.04"}}

===== Known Issues =====
===== Linux BSP Rev.0105 ======
==== PTXdist ====
^  U-Boot build failure  ^^
^ Affects        | U-Boot build stage  |
^ Issue     | Typo in configs/platform-tq-mba6x/rules/u-boot-spi-tqma6s.make  |
^ Effect    | When U_BOOT_SPI_TQMA6S is selected, U-Boot fails to build properly.  |
^ Solution / Workaround  | Change line 29 in configs/platform-tq-mba6x/rules/u-boot-spi-tqma6s.make from\\ ''U_BOOT_SPI_TQMA6S_LICENS E      := GPLv2''\\ to\\ ''U_BOOT_SPI_TQMA6S_LICENSE      := GPLv2''|


===== Linux BSP Rev.0104 ======
==== PTXdist ====
++++ U-Boot build failure | 
^ Affects        | U-Boot build stage  |
^ Issue     | Typo in configs/platform-tq-mba6x/rules/u-boot-tqma6q.make  |
^ Effect    | When PTXCONF_U_BOOT_TQMA6S is not selected (i.e. U-Boot should only be build for TQMaQ), U-Boot fails to build properly.  |
^ Solution / Workaround  | Change line 66  in configs/platform-tq-mba6x/rules/u-boot-tqma6q.make from\\ ''ifdef PTXCONF_U_BOOT_TQMA6**S**_INSTALL_U_BOOT_IMX''\\ to\\ ''ifdef PTXCONF_U_BOOT_TQMA6**Q**_INSTALL_U_BOOT_IMX''|
++++

==== Linux Kernel 3.16 ====

^  Kernel does not boot  ^^
^ Affects        | U-Boot & U-Boot environment   |
^ Issue     | New Kernel memory map  |
^ Effect    | Kernel does not boot (properly) with U-Boot and U-Boot environment from BSPs < Rev. 0104                                       |
^ Solution / Workaround  | Use U-Boot from BSP Rev. 0104 and reset U-Boot envrionment to default (any custom variables can, of course, be added again afterwards).                                                         |

==== OSELAS.Toolchain 2013.12.x from debian.pengutronix.de ====

^  Qt Creator debugging fails ^^
^ Affects\\ Subject        | GDB                                                                                   |
^ Issue     | Missing support for Python scripts (i.e., gdb is not configured using ''--with-python'')  |
^ Effect    | Qt Creator Debugging Helpers will not work (properly)                                       |
^ Solution / Workaround  | Build toolchain from source                                                        |



====== Linux ======

===== General =====

  * **Affected Revisions**: prerel 20130407
  * **Issue**: spurios kernel panic when mounting NFS root on TQMa6S
  * **Solution**: fixed in newer releases

===== CAN =====

  * **Affected Revisions**: up to 0100
  * **Issue**: wrong Bitrate setup
  * **Solution**: fix planned for REV 0101

===== Ethernet =====

  * **Affected Revisions**: all
  * **Issue**: missing support for GIGE
  * **Solution**: Software fix planned for REV 0101, needs MBa6x 0102

  * **Affected Revisions**: all
  * **Issue**: missing support for GIGE
  * **Solution**: currently none, under investigation

===== USB =====

  * **Affected Revisions**: all
  * **Issue**: Hub power issue, hub signals that port draws too much current even if the hub is powered
  * **Solution**: fixed, needs hardware workaround on MBa6x REV0100, fixed on newer revisions

  * **Affected Revisions**: prerel 20130704
  * **Issue**: missing LED support for USB-Ethernet port
  * **Solution**: fixed in newer BSP

===== I2C =====

  * **Affected Revisions**: prerel 20130407
  * **Issue**: I2C eeprom access slow
  * **Solution**: fixed in newer releases

===== SD / eMMC =====

  * **Affected Revisions**: all
  * **Issue**: spurios SD card write error -84
  * **Solution**: under investigation

===== SPI =====

  * **Affected Revisions**: all
  * **Issue**: missing support for boot from SPI-NOR
  * **Solution**: currently none, planned for future release
====== PTXdist ======

====== Toolchain ======

If you have compiler / compilation errors please contact us using our [[http://www.tq-group.com/en/support/support-form/|web formular]].

===== OSELAS.Toolchain 2012.12.x =====

  * **Affected Revisions**: all
  * **Issue**: missing support for cortex-strings in glibc
  * **Solution**: \\ 1) If performance impacts are noticed, use OSELAS.Toolchain for cortexa8. It is known to work \\ 2) Try other toolchain with cortex-strings support