Difference between revisions of "CL-SOM-AM57x: Linux: Known Issues"

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:'''Workaround :''' Make sure to use {{filename|eth1}} name for the primary Ethernet port (P21) and {{filename|eth0}} for secondary (P10).
 
:'''Workaround :''' Make sure to use {{filename|eth1}} name for the primary Ethernet port (P21) and {{filename|eth0}} for secondary (P10).
 +
}}
 +
 +
{{IssueCategory|RTC|
 +
* The RTC device can start with invalid information.
 +
<blockquote>
 +
Systemd getting stuck during start-up with continues printing:
 +
<pre>systemd[1]: Time has been changed</pre>
 +
 +
The problem is caused by incompatibility between 32 bit Linux and systemd regarding the size of time_t.
 +
The problem is discussed in systemd issue 1143: https://github.com/systemd/systemd/issues/1143
 +
</blockquote>
 +
 +
:'''Workaround :''' disable system time from RTC on start-up.
 +
}}
 +
 +
{{IssueCategory|WiFi|2=
 +
* Wifi firmware revision 8.9.0.0.48 can cause to the CPU core to get stuck.
 +
 +
:'''Workaround :''' upgrade the firmware file {{filename|/lib/firmware/ti-connectivity/wl18xx-fw-4.bin}} to revision 8.9.0.1.55.
 +
{{note|The image can be downloaded from the Linux firmware git repository: https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/plain/ti-connectivity/wl18xx-fw-4.bin}}
 +
}}
 +
 +
{{IssueCategory|mini PCIe 0|
 +
* The mini PCIe connector is disabled by default in the SB-SOM-AM57x board.
 +
 +
:'''Workaround :''' Use the following U-Boot command to pull PCIe 0 out of reset:
 +
<pre>
 +
i2c dev 4; pca953x output 1 1
 +
</pre>
 
}}
 
}}
  
 
[[Category:Linux]]
 
[[Category:Linux]]
 
[[Category:CL-SOM-AM57x]]
 
[[Category:CL-SOM-AM57x]]

Latest revision as of 13:49, 5 March 2017

Ethernet
  • eth0 name is assigned to the secondary Ethernet adapter which port is routed to auxiliary P10 connector of SB-SOM-AM57x.
Workaround : Make sure to use eth1 name for the primary Ethernet port (P21) and eth0 for secondary (P10).
RTC
  • The RTC device can start with invalid information.

Systemd getting stuck during start-up with continues printing: 

systemd[1]: Time has been changed

The problem is caused by incompatibility between 32 bit Linux and systemd regarding the size of time_t. The problem is discussed in systemd issue 1143: https://github.com/systemd/systemd/issues/1143

Workaround : disable system time from RTC on start-up.
WiFi
* Wifi firmware revision 8.9.0.0.48 can cause to the CPU core to get stuck.
Workaround : upgrade the firmware file /lib/firmware/ti-connectivity/wl18xx-fw-4.bin to revision 8.9.0.1.55.
Admolition note.png The image can be downloaded from the Linux firmware git repository: https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/plain/ti-connectivity/wl18xx-fw-4.bin
mini PCIe 0
  • The mini PCIe connector is disabled by default in the SB-SOM-AM57x board.
Workaround : Use the following U-Boot command to pull PCIe 0 out of reset:
i2c dev 4; pca953x output 1 1
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