[devices]: Add lpmode in sfputil.py for Accton AS7312-54XS#3007
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lguohan merged 1 commit intosonic-net:masterfrom Jul 2, 2019
Merged
[devices]: Add lpmode in sfputil.py for Accton AS7312-54XS#3007lguohan merged 1 commit intosonic-net:masterfrom
lguohan merged 1 commit intosonic-net:masterfrom
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Signed-off-by: brandon_chuang <brandon_chuang@edge-core.com>
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Jun 29, 2019
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Signed-off-by: brandon_chuang brandon_chuang@edge-core.com
CPU: Intel Atom® Processor C2538
MAC: Broadcom Tomahawk BCM56963
BMC: None
What I did
Add lpmode in sfputil.py for as7312-54xs.
.
How I did it
Implement get_low_power_mode/set_low_power_mode in sfputil.py
How to verify it
sfputil show lpmode
sfputil lpmode off
sfputil lpmode on
Description for the changelog
Access eeprom from transceiver to get/set lpmode status
If "Power override" bit is not set, return the H/W pin status depended on H/W design.
For as7312-54xs, this pin is pulled low which is High Power Mode.
If "Power override" bit is set, retrun the S/W lpmode status read from eeprom.
Below is the Power Mode Truth Table defined in sff-8436
LPMode_Pin Power_overide_Bit Power_set_Bit Module_Power_Allowed
1 0 X Low Power
0 0 X High Power
X 1 1 Low Power
X 1 0 High Power