[DellEMC] S6100-Fix i2C ISMT issue#4330
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sujinmkang merged 2 commits intosonic-net:masterfrom Apr 28, 2020
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retest vsimage please |
sujinmkang
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Mar 30, 2020
platform/broadcom/sonic-platform-modules-dell/s6100/scripts/s6100_bitbang_reset.sh
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- What I did
Fixed "ismt_smbus 0000:00:13.0: completion wait timed out" issue in Dell S6100.
- How I did it
-I2C channels,MUX are not closed properly and data line is held by I2C slave devices.
-Do peripheral deinit before reboot.
-As a preventive measure, I2C bitbang is done before attaching I2C devices.
-Log ISMT registers in syslog before and after applying bitbang.
- How to verify it
Run a script that does fastboot,warmboot,cold boot and power cycle continuously.
Test logs:
ismt_logs.zip
- Description for the changelog
- A picture of a cute animal (not mandatory but encouraged)