Copyright
©
2016
congatec
AG
TR33m10
89/105
Feature
Options
Description
ASPM
Disabled
Enabled
Enabled or disable PCI Express Active State Power Management.
Extended Synch
Disabled
Enabled
If enabled, the generation of extended PCI Express synchronization patterns is allowed.
Link Training Retry
Disabled
2
3
5
Defines numer of retry attempts software will take to retrain the link if the previous training attempt
was unsuccessful.
Link Training Timeout (us)
Default:
100
10 – 10000
Defines number of microseconds software will wait before polling the link training bit in the link status
register. Value ranges from 10us to 10000us.
Unpopulated Links
Keep link on
Disabled
Disable unpopulated links to conserve power or keep them on.
Restore PCIE Registers
Enabled
Disabled
On non-PCI Express aware operating systems some devices may not be re-initialized correctly after
S3. Setting this node to Enabled restores PCI Express configuration on S3 resume.
Warning: Enabling this may cause issues with other hardware after S3 resume.
11.3.16.2 PCI Express Port Control Submenu
Feature
Options
Description
PCI Express Port Organization
4 x1 Ports
1 x2 + 2 x1 Porst
1 x4 Port
Select PCI Express port layout
PCIe Port 1
Disabled
Enabled
Enable or disable PCIe port 1.
Link Speed
Max supported
Gen3
Gen2
Gen1
Select PCIe port 1 link speed.
Max supported = link speed determined by PCIe device.
GenX = force GenX speed
ASPM Mode Control
Disabled
L0s Entry
L1 Entry
L0s And L1 Entry
Select ASPM mode for current PCIe port
Hotplug Mode Control
Disabled
Enabled
Enable or disable hotplug on current PCIe port.
PCIe Port 2
Disabled
Enabled
Enable or disable PCIe port 2.
