Revision as of 14:57, 12 June 2024 by Registered User (Created page with "{{ApplicableFor |MPUs list=STM32MP25x |MPUs checklist=STM32MP13x, STM32MP15x, STM32MP25x }} ==Article purpose== The purpose of this article is to explain how to activate the HSE PCIe ASPM. ASPM (Active-State Power Management) allows ... ==How to activate the monitoring== By default, the PCIe ASPM is set to default (performance) To change the PCIe ASPM to power save mode, first check that the PCIe endpoint supports ASPM (LnkCap fireld root@stm32mp2:~# lspci -vv -s 03:0...")
1. Article purpose[edit source]
The purpose of this article is to explain how to activate the HSE PCIe ASPM.
ASPM (Active-State Power Management) allows ...
2. How to activate the monitoring[edit source]
By default, the PCIe ASPM is set to default (performance)
To change the PCIe ASPM to power save mode, first check that the PCIe endpoint supports ASPM (LnkCap fireld root@stm32mp2:~# lspci -vv -s 03:00.0 | grep ASPM
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 unlimited
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+