Sep 10, 2020 · In Linux you add an extra f so 0xffe270f14. When booted the LTSSM state is 0x11 as expected. 0xffe270f14 90000044 00FF0000 00000000 00008000. The difficulty now is trying to read that register while Link Training. It seems this is not possible using CodeWarrior Tap so we are attempting to create some code to do it and log the LTSSM register ...

Aug 27, 2014 · Hi. While checking the Debug Register 0, that is part of the Port Logic register of the PCIe Core in the i.MX6 Solo processor we were interesting in knowing the current LTSSM state of the PCIe Core. However the datasheet says: [5:0]: xmlh_ltssm_state LTSSM current state. See source for encodings ...

Jul 28, 2017 · Hello, Table 18-4 of the P5020 RM lists there as being five different Disabled states in the LTSSM State Status Register, Disabled through Disabled(4). What is the difference between these states? In particular, Disabled(1) and Disabled(4)? I am currently using the P5020 as a host for two end points...

Sep 4, 2020 · A component must enter the LTSSM Detect state within 20 ms of the end of the Fundamental reset. A system must guarantee that all components intended to be software visible at boot time are ready to receive Configuration Requests within 100 ms of the end of Conventional Reset at the Root Complex.

Dec 14, 2021 · The problem is: it does not perform link training. LTSSM is in Polling.Compliance state. I have: - two custom boards - ls1012ardb eval board - two pci-e raisers - minipci-e wifi module from a notebook - handmade adaptor from minipci-e-female to pci-e-male (to connect ls1012ardb to PC) What i have done:

Sep 21, 2022 · On the non-working desktop PC, an AMD Ryzen 5 CPU, the BIOS appears to probe the PCIe endpoint device and the LTSSM state goes to L0(0x11) and then back to Recovery.Lock/Speed before the host PC enters the bootloader (grub) and when Linux boots, the IMX8 endpoint device never shows up in 'lspci', and …

Feb 28, 2014 · We use P2020 to control switch by PCIE(1X).But the PCIE(1X) can't conect the switch.We check the register that is LTSSM State Status Forums 5 Product Forums 21

Feb 21, 2013 · The LTSSM on the i.MX6Q seems to get to the final "L0" state. I've looked at the link re-establishment using a PCIe protocol analyzer. I don't think the i.MX6Q ever initiates a "speed change" to Gen2 the way it does on the initial bring-up.

Sep 22, 2021 · Hi all, We have a test card which successfully enumerates a PCIe endpoint device during startup. Now when a processor reboot is done without putting the endpoint-device in reset, the PCIe enumeration is lost. Now reading the LTSSM State Status Register on P1022, we found out that on the prototype ...

Feb 21, 2013 · The LTSSM on the i.MX6Q seems to get to the final "L0" state. I've looked at the link re-establishment using a PCIe protocol analyzer. I don't think the i.MX6Q ever initiates a "speed change" to Gen2 the way it does on the initial bring-up.