Please also check your flash log to see if your bpmp dtb really got flashed to the board too.
Jetson_flash.log.txt (92.9 KB)
copying bpfdtbfile(/home/jetson/Jetson_35/Linux_for_Tegra/bootloader/t186ref/tegra234-bpmp-3701-0004-3737-0000.dtb)... done.
[ 0.0413 ] Change tegra234-bpmp-3701-0004-3737-0000.dtb to tegra234-bpmp-3701-0004-3737-0000_with_odm.dtb
[ 0.0421 ] Change tegra234-bpmp-3701-0004-3737-0000.dtb to tegra234-bpmp-3701-0004-3737-0000_with_odm.dtb
[ 0.0914 ] /usr/bin/python3 dtbcheck.py -c t234 -o tegra234-bpmp-3701-0004-3737-0000_with_odm.dtb tegra234-bpmp-3701-0004-3737-0000_with_odm_tmp.dtb
[ 5.1644 ] adding BCH for tegra234-bpmp-3701-0004-3737-0000_with_odm_aligned.dtb
[ 7.9903 ] Disabled BPMP dtb trim, using default dtb
[ 9.0949 ] Using bpmp-dtb concatenated with o[ 226.7754 ] Writing partition A_bpmp-fw-dtb with tegra234-bpmp-3701-0004-3737-0000_with_odm_sigheader.dtb.encrypt [ 260160 bytes ]dmdata in blob
[ 348.8360 ] Writing partition B_bpmp-fw-dtb with tegra234-bpmp-3701-0004-3737-0000_with_odm_sigheader.dtb.encrypt [ 260160 bytes ]
I donāt really like it, but I canāt quite understand it.
Hi,
This āFailed to init UPHY for PCIe EPā log will only print when āenable_ext_refclkā is set in the driver.
Which means your change to " nvidia,enable-ext-refclk" does not take effect.
Hello.
I did some work, and in this stage, I can see that the root port is sending data, but I do not see any messages from the Jetson side on UPHY_TX12_P/N line.
Itās strange that the DC bias voltage on the this pins is 0V. I expected to see some kind of displacement, which is typical.
Are there any debugging mechanisms that would help localize the cause?
You said that no changes are needed for the deŠ¼ŃŠ“ŃŠ·ŃŠŗ board, perhaps for a custom board some changes are needed in the device tree, or are pinmux still needed?
Perhaps you need to specify the number of lines used?
Hi,
Does this issue happen even with SRNS not enabled or this only happened after SRNS enabled?
Also, just a double confirmation. Are all the previous errors already resolved or not?
You didnāt reply anything for 4 days and just came back with something new. We need to know if you are telling old issue or new issue.
Yes, if I donāt enable SRNS and disable SSC, the error > Failed to init UPHY for PCIe EP: -22 does not appear. But this does not mean that the endpoint has been initialized since I donāt have an external ref_Ńlk from root port.
Yes, all errors remain:
root@ubuntu:/sys/kernel/config/pci_ep# mkdir functions/pci_epf_nv_test/func1
root@ubuntu:/sys/kernel/config/pci_ep# echo 0x10de > functions/pci_epf_nv_test/func1/vendorid
root@ubuntu:/sys/kernel/config/pci_ep# echo 0x0001 > functions/pci_epf_nv_test/func1/deviceid
root@ubuntu:/sys/kernel/config/pci_ep# ln -s functions/pci_epf_nv_test/func1 controllers/141a0000.pcie_ep/
root@ubuntu:/sys/kernel/config/pci_ep# echo 1 > controllers/141a0000.pcie_ep/start
root@ubuntu:/sys/kernel/config/pci_ep#
root@ubuntu:/sys/kernel/config/pci_ep#
after boot root_port board
root@ubuntu:/sys/kernel/config/pci_ep# [ 2016.296956] tegra194-pcie 141a0000.pcie_ep: Failed to init UPHY for PCIe EP: -22
root@ubuntu:/sys/kernel/config/pci_ep# dmesg | grep pcie
[ 5.941187] tegra194-pcie 141a0000.pcie_ep: Adding to iommu group 9
[ 5.953818] tegra194-pcie 141a0000.pcie_ep: Failed to get PERST GPIO: -517
[ 5.953830] tegra194-pcie 141a0000.pcie_ep: Failed to parse device tree: -517
[ 5.954059] tegra194-pcie 14100000.pcie: Adding to iommu group 10
[ 5.966384] tegra194-pcie 14100000.pcie: Using GICv2m MSI allocator
[ 5.974965] tegra194-pcie 14160000.pcie: Adding to iommu group 11
[ 5.986977] tegra194-pcie 14160000.pcie: Using GICv2m MSI allocator
[ 7.246302] tegra194-pcie 141a0000.pcie_ep: Using GICv2m MSI allocator
[ 7.253041] tegra194-pcie 141a0000.pcie_ep: Failed to get slot regulators: -517
[ 7.262311] tegra194-pcie 14100000.pcie: Using GICv2m MSI allocator
[ 7.278158] tegra194-pcie 14100000.pcie: host bridge /pcie@14100000 ranges:
[ 7.298009] tegra194-pcie 14100000.pcie: IO 0x0030100000..0x00301fffff -> 0x0030100000
[ 7.306699] tegra194-pcie 14100000.pcie: MEM 0x20a8000000..0x20afffffff -> 0x0040000000
[ 7.315387] tegra194-pcie 14100000.pcie: MEM 0x2080000000..0x20a7ffffff -> 0x2080000000
[ 8.436058] tegra194-pcie 14100000.pcie: Phy link never came up
[ 8.442221] tegra194-pcie 14100000.pcie: PCI host bridge to bus 0001:00
[ 8.518200] pcieport 0001:00:00.0: Adding to iommu group 10
[ 8.524187] pcieport 0001:00:00.0: PME: Signaling with IRQ 65
[ 8.530371] pcieport 0001:00:00.0: AER: enabled with IRQ 65
[ 8.556101] tegra194-pcie 14160000.pcie: Using GICv2m MSI allocator
[ 8.563401] tegra194-pcie 14160000.pcie: host bridge /pcie@14160000 ranges:
[ 8.570573] tegra194-pcie 14160000.pcie: IO 0x0036100000..0x00361fffff -> 0x0036100000
[ 8.579260] tegra194-pcie 14160000.pcie: MEM 0x2428000000..0x242fffffff -> 0x0040000000
[ 8.587942] tegra194-pcie 14160000.pcie: MEM 0x2140000000..0x2427ffffff -> 0x2140000000
[ 9.704214] tegra194-pcie 14160000.pcie: Phy link never came up
[ 9.710377] tegra194-pcie 14160000.pcie: PCI host bridge to bus 0004:00
[ 9.786171] pcieport 0004:00:00.0: Adding to iommu group 11
[ 9.792127] pcieport 0004:00:00.0: PME: Signaling with IRQ 67
[ 9.798310] pcieport 0004:00:00.0: AER: enabled with IRQ 67
[ 9.823346] vdd-3v3-pcie: supplied by vdd-3v3-sys
[ 9.877377] tegra194-pcie 141a0000.pcie_ep: Using GICv2m MSI allocator
[ 42.419072] vdd-3v3-pcie: disabling
[ 42.419124] vdd-12v-pcie: disabling
[ 2016.296956] tegra194-pcie 141a0000.pcie_ep: Failed to init UPHY for PCIe EP: -22
root@ubuntu:/sys/kernel/config/pci_ep#
Iām still with the old problem.
Sorry, I just notice you said āI donāt have an external ref_Ńlk from root port.ā.
So are you talking about you must enable SRNS?
Yes, enable SRNS and disable spread spectrum.
Iām also concerned about 0V on the pins of the Jetson transmitter UPHY_TX12_P/N, some kind of bias voltage should be there?
So did you check my previous comment or not?
Please explain, I donāt quite understand this.
Anyway, i commented ānvidia,enable-ext-refclkā in dts file and add nvidia,enable-srns.
I am just revealing the driver code fact to you. This is actually a open source kernel driver.
If you donāt understand what I mean, you can download and check that driver code too.
Driver reads the device tree and notice there is ext refclk set and then it goes into that if-else condition.
Maybe your device tree didnāt get updated and nvidia,enable-ext-refclk is still there. You could check it during runtime.
āYou could check it during runtimeā - could you write how to check this?
root@ubuntu:~# ls /proc/device-tree/pcie_ep@141a0000/
'#address-cells' nvidia,cfg-link-cap-l1sub
clock-names nvidia,controller-id
clocks nvidia,device-id
compatible nvidia,disable-aspm-states
dma-coherent nvidia,dl-feature-cap
interconnect-names nvidia,dvfs-tbl
interconnects nvidia,enable-ext-refclk
interrupt-names nvidia,event-cntr-ctrl
interrupts nvidia,event-cntr-data
iommu-map nvidia,host1x
iommu-map-mask nvidia,max-speed
iommus nvidia,ptm-cap-off
msi-map nvidia,refclk-select-gpios
msi-parent phandle
name phy-names
num-ib-windows phys
num-lanes pinctrl-0
num-ob-windows pinctrl-names
nvidia,aspm-cmrt power-domains
nvidia,aspm-cmrt-us reg
nvidia,aspm-l0s-entrance-latency reg-names
nvidia,aspm-l0s-entrance-latency-us reset-gpios
nvidia,aspm-l1-entrance-latency reset-names
nvidia,aspm-pwr-on-t resets
nvidia,aspm-pwr-on-t-us '#size-cells'
nvidia,aux-clk-freq status
nvidia,bar0-size vddio-pex-ctl-supply
nvidia,bpmp vpcie12v-supply
nvidia,cap-pl16g-cap-off vpcie3v3-supply
nvidia,cap-pl16g-status
It is still thereā¦ the last one in below screenshotā¦
How can I remove this property? I deleted it in :
kernel_tegra234-p3701-0004-p3737-0000.dts
Apparently there is some other file that overwrites my changes?
Do it from the source code itself and rebuild the whole dts.
Could you tell me in which source code files I should make changes?
I donāt really memorize the location of which device tree has it. grep it under your hardware directory and see which one has it or not.
Tracing device tree is a common thing.
I edit tegra234-p3701-0004-p3737-0000.dtb file in Linux_For_Tegra/kernel/dtb.
root@zynqup:~# lspci -vvv
01:00.0 RAM memory: NVIDIA Corporation Device 0001
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 255
Region 2: Memory at <unassigned> (64-bit, prefetchable) [disabled]
Region 4: Memory at <unassigned> (64-bit, non-prefetchable) [disabled]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 0.000W
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ TransPend-
LnkCap: Port #0, Speed 16GT/s, Width x8, ASPM L0s L1, Exit Latency L0s <1us, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s (downgraded), Width x1 (downgraded)
TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
AtomicOpsCtl: ReqEn-
LnkCtl2: Target Link Speed: 16GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [b0] MSI-X: Enable- Count=8 Masked-
Vector table: BAR=2 offset=00000000
PBA: BAR=2 offset=00010000
Capabilities: [100 v2] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
MultHdrRecCap+ MultHdrRecEn- TLPPfxPres- HdrLogCap-
HeaderLog: 00000000 00000000 00000000 00000000
Capabilities: [148 v1] Secondary PCI Express <?>
Capabilities: [168 v1] Physical Layer 16.0 GT/s <?>
Capabilities: [190 v1] Lane Margining at the Receiver <?>
Capabilities: [1b8 v1] Latency Tolerance Reporting
Max snoop latency: 0ns
Max no snoop latency: 0ns
Capabilities: [1c0 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2- ASPM_L1.1- L1_PM_Substates+
PortCommonModeRestoreTime=60us PortTPowerOnTime=40us
L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
T_CommonMode=0us
L1SubCtl2: T_PwrOn=10us
Capabilities: [1d0 v1] Vendor Specific Information: ID=0002 Rev=4 Len=100 <?>
Capabilities: [2d0 v1] Vendor Specific Information: ID=0001 Rev=1 Len=038 <?>
Capabilities: [308 v1] Data Link Feature <?>
Capabilities: [314 v1] Precision Time Measurement
PTMCap: Requester:+ Responder:- Root:-
PTMClockGranularity: Unimplemented
PTMControl: Enabled:- RootSelected:-
PTMEffectiveGranularity: Unknown
Capabilities: [320 v1] Vendor Specific Information: ID=0003 Rev=1 Len=054 <?>
Capabilities: [388 v1] Vendor Specific Information: ID=0006 Rev=0 Len=018 <?>
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