Tiger Lake COMe Module - Boot Halts at Sleep States

[PDeme]

We have a brand new board at the start of bring up. It is a COMe module based on the Tiger Lake IOTG UP3 processor. We have no EC but are using an eSPI-LPC bridge to perform some of the EC functions. Deep Sx is enabled.

At first boot, all of the boot signals are working in the proper order. After the SUS_ACK# virtual wire is deasserted on the eSPI bus, none of the sleep signals (SLP_S3#, SLP_S4#, SLP_S5#) are ever deasserted which is the next step. The boot does not proceed any further.

There is activity on the SPI bus from the BIOS image. The last access seen is to the IFP Overrides Partition.

The end of a capture of CSME bus activity is below. The entire capture is attached.

Unfortunately it is hard to decipher what any of this means. It looks like there is an error on the override partition read. The boot stops while polling the PPS register. Who is setting this?

Any assistance with this issue would be appreciated. Thanks in advance.

89 +00:00:00.326354615072 CSME Normal RBE [RBE PCIE CONFIG] - Error reading UEP data, skipping override. status: 3
90 +00:00:00.326711901855 CSME Normal RBE [FUSA] Functional Safety: FUSA HVM bit 1 , GPIO 0
91 +00:00:00.326949908854 CSME Normal RBE [RBE SKU] fw_type: 3, sub_fw_type: 1
92 +00:00:00.327218379720 CSME Normal RBE [RBE] Boot Services Satisfied: PMC Patch (0), PMC Smip (0)
93 +00:00:00.327218938802 CSME Normal RBE [RBE] Sending PMC patch ready for pull
94 +00:00:00.332837347819 CSME Normal RBE [RBE] Sending payload pull ready. Payloads to pull = 0x192
95 +00:00:00.333913404134 CSME Normal RBE [RBE] Send Boot Media Configured message
96 +00:00:00.335670183919 CSME Normal RBE [RBE] Update MEEN, value: 1 ( soft straps valid: 1, DCI_EN: 1, EOM: 0)
97 +00:00:00.335688183594 CSME Normal RBE [RBE] Consent CurExiDbgEn=1, DfxConsent=1
98 +00:00:00.335688747559 CSME Normal RBE [RBE] Measured Debug Consent value = 1
99 +00:00:00.335697369792 CSME Normal RBE [RBE] Configure USB2 port 2 for DBC
100 +00:00:00.335732587891 CSME Normal RBE [RBE] Poll for USB3 port 2 to disconnect
101 +00:00:00.335738566081 CSME Normal RBE [RBE] Poll for USB2 port 2 to disconnect
102 +00:00:00.337051889648 CSME Normal RBE [RBE] Poll for USB2 port 2 to subscribe for DBC
103 +00:00:00.337353115234 CSME Normal RBE [FUSA] Functional Safety: FUSA HVM bit 1 , GPIO 0
104 +00:00:00.337362333171 CSME Normal RBE [RBE] Check if DAM mode is needed. Unlock state = 0, Dam state = 0, DfxLock state = 0, Consent = 1
105 +00:00:00.337504607747 CSME Normal RBE [RBE] ConfigureDAM=0, Source is 0
106 +00:00:00.337635791829 CSME Normal RBE [RBE] Setting EPOC: Consent = 1, DAM = 0
107 +00:00:00.337678963216 CSME Normal RBE [RBE] CSE Boot stall flow
108 +00:00:00.337681333008 CSME Normal RBE [RBE] Poll for boot stall done
109 +00:00:00.337690957845 CSME Normal RBE [RBE] Configure trace: Trace_Enabled=1, Intel_Trace_Enabled=0, Trace_Knob_Present=0
110 +00:00:00.338031438802 CSME Normal RBE [RBE] Setting Boot Stall Done in PMC
111 +00:00:00.338431804199 CSME Normal RBE [RBE] Starting to poll PPS for a valid value.

[Jean_Intel]

Hello PDeme,

Thank you for posting on the Intel️® communities.  

To provide you with further support, please, let us know the processor model you are using.

Best regards, 

Jean O.  

Intel Customer Support Technician

[PDeme]

Tiger Lake IOTG UP3 processor. Do you need more that that?

[Jean_Intel]

Hello PDeme,

Thanks for the information provided. Looking around, you can confirm that different system manufacturers are mentioning that they have an Intel® 11th Gen Tiger Lake-UP3 processor; and you can see that their detailed specifications or datasheets state that the system may have different CPU options. Thus, I want to confirm the exact processor model that you are using. We will use this information to give the most efficient troubleshooting for your issue. 

MSI https://ipc.msi.com/product_detail/Single-Board-Computer/3.5%22-SBC/MS-98M3

ASRock: https://www.asrockind.com/en-gb/iBOX-1185G7E

Best regards, 

Jean O.  

Intel Customer Support Technician

[Jean_Intel]

Hello PDeme,

I hope you are doing fine.

Were you able to check the previous post?

Let us know if you still need assistance.

Best regards, 

Jean O.  

Intel Customer Support Technician

[Jean_Intel]

Hello PDeme,

I hope you are doing fine.

I have not heard back from you. So we will close this thread. If you need any additional information, submit a new question, as this thread will no longer be monitored.

Best regards.

Jean O. 

Intel Customer Support Technician.

[PDeme]

We were able to resolve this issue with Intel Support assistance. Thanks.