DP83825I: EPHY schematics review

nakashima.bo

Part Number: DP83825I
Other Parts Discussed in Thread: SK-AM62,

Hello Experts,

We have designed EPHY circuit with DP83825IRMQR on our PCB.
But, when Ethernet cable connects from this PCB to PC for the test, link up can be done (100Mbps, Full-duplex) but ping cannot succeed.

Parts name of PHY and MCU are the followings.
PHY: DP83825IRMQR x2 (eth0, eth1) used as RMII master mode
MCU: AM6231ASGGGAALW

We have designed the MCU firmware of Ethernet communication module based on the one for SK-AM62.
(Changed only some parameters and defines from for RGMII mode to for RMII mode.)
We have already confirmed that the port mode select of both eth0/eth1 on MCU is RMII.

Details of ping NG;
PC --> PCB: PC send ARP request to PCB(as global packet), but PCB send no response message to PC.
PCB --> PC: PCB send ARP request to PC(as global packet), then PC send the response message to PCB, but then PCB send ARP request to PC(as global packet) again. It repeats until ping command of PCB is stopped.

I had asked about this issue to MCU experts on the following thread.
This new thread is to ask about it to EPHY experts followed by the advice of MCU experts.
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1269687/am623-cannot-establish-ethernet-rmii-data-communication-tx-rx-between-mac-and-phy/4833929#4833929

The attached PDF file is the Ethernet circuit between MCU and PHY and around PHY from the circuits of our PCB.
Please review it, and please give us some advice if it can be guessed something suspicious by the above information, or if there are what we need to check more.

Thanks,

Yasuhiro Nakashima

EthernetCircuit20230914.pdf

over 1 year ago

0 Evan Mayhew over 1 year ago

TI__Genius 17582 points

Hi Nakashima-san,

The device is currently strapped into RMII master mode, but the clock input on XI (50MHz) should only be used for RMII slave mode.

This cannot be changed via register access, so I recommend populating the 2.49k PUs on RX_D1 (R15, R16) and removing the PDs (R17, R18) to strap the devices into RMII slave mode.

If this does not resolve the issue, please share a register dump and re-open this thread.

Thank you,

Evan

0 nakashima.bo over 1 year ago in reply to Evan Mayhew

Prodigy 30 points

Hello Evan-san,

Thanks for your comment and suggestion.

Evan Mayhew said:
The device is currently strapped into RMII master mode, but the clock input on XI (50MHz) should only be used for RMII slave mode.

This cannot be changed via register access, so I recommend populating the 2.49k PUs on RX_D1 (R15, R16) and removing the PDs (R17, R18) to strap the devices into RMII slave mode.

On our PCB circuit, X2 (ECS-2520MV-250-CN-TR) is a 25MHz output Oscillator and a 25MHz clock signal "CPSW_RMII_CLK" is input to XI.
This design is based on the information for RMII master mode shown on DP83825I datasheet, so I cannot understand why you have suggested this solution.

I guessed a bit that your explanation means that XI doesn't work on RMII master mode setting, that is DP83825I may work on only RMII slave mode even though many specs for RMII master mode is written in the datasheet.
So I changed RX_D1 of DP83825I from pull-down (RMII master setting) to pull-up (RMII slave setting) then confirmed the Ethernet connection, following to your suggestion, but it didn't even link-up as my prediction.

The attached files are register dump logs of two PHYs(eth0;IC2, eth1;IC3) before/after Ethernet connection link-up, after RX_D1 is changed back to pull-down (RMII master setting).
Please confirm these files, and investigate about causes of this issue again.

Thanks,
Nakashima

regidump_eth0.txt
regidump_eth1.txt

0 Evan Mayhew over 1 year ago in reply to nakashima.bo

TI__Genius 17582 points

Hi Nakashima-san,

Thank you for clarifying, originally I did not see the 25MHz oscillator in the schematic shared.

If a 25M oscillator is being used, then the original straps for RMII master mode are acceptable.

Please use phytool rather than ethtool for generating the register dump - the values shared are not valid.

This FAQ has details on the use of phytool:

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1164499/faq-how-to-read-and-write-ethernet-phy-registers-using-a-linux-terminal

Thank you,

Evan

0 nakashima.bo over 1 year ago in reply to Evan Mayhew

Prodigy 30 points

Morning Evan-san,

Thanks for your reply.

I tried to take register dump logs of two PHYs(eth0;IC2, eth1;IC3) before/after Ethernet connection link-up using phytool command.
Please confirm them.

I am uncertain just a little that the attached logs are with what you want, because this was the first time for me to use phytool command...

Thanks,
Nakashima

regidump(phytool)_eth0.txt
regidump(phytool)_eth1.txt

0 Evan Mayhew over 1 year ago in reply to nakashima.bo

TI__Genius 17582 points

Hi Nakashima-san,

Thank you for sharing the register dumps, the logs are a valid reference.

Reviewing the register dumps, the PHY's configuration and status is as expected for both the link down and link up cases.

This leads me to think the issue is likely with the SoC software configuration.

If you would like more confidence that the issue is not on the PHY level, one test is to send data from the SoC through the PHY and its link partner with the link partner configured in reverse loopback mode to route the same data back to the SoC:

SoC -> PHY1 -> PHY2 (reverse loopback) -> PHY1 -> SoC

Reverse loopback is enabled by writing 0x16[4] = 1.

If the SoC receives the same packets, then the signal path is valid.

Thanks,

Evan

0 nakashima.bo over 1 year ago in reply to Evan Mayhew

Prodigy 30 points

Dear Evan-san,

Thanks for your comment.

I tried to do the loopback test with connecting between eth0 port and eth1 port, following as you explained, but the result was that both eth0 and eth1 received no packet.
Please see the attached log.

Evan Mayhew said:
Reviewing the register dumps, the PHY's configuration and status is as expected for both the link down and link up cases.

This leads me to think the issue is likely with the SoC software configuration.

I created this thread by the suggestion from SoC expert, who considers that the causes of this issue may be on SoC side but on PHY side by his investigations.
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1269687/am623-cannot-establish-ethernet-rmii-data-communication-tx-rx-between-mac-and-phy/4833929#4833929
The above thread was closed today, but by your comment, should I ask to investigate about this issue to SoC experts again???

Cannot I ask you to discuss about this issue between you (PHY experts) and SoC experts one time, with much information and many results which I have attached on the thread until now?

Thanks,
Nakashima

LoopbackTest-log231003.txt

U-Boot SPL 2021.01-g3983bffabc (Dec 14 2022 - 11:53:21 +0000)
SYSFW ABI: 3.1 (firmware rev 0x0008 '8.5.3--v08.05.03 (Chill Capybar')
SPL initial stack usage: 13424 bytes
Trying to boot from MMC2
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Loading Environment from MMC... *** Warning - No MMC card found, using default environment

Starting ATF on ARM64 core...

NOTICE:  BL31: v2.8(release):v2.8-226-g2fcd408bb3-dirty
NOTICE:  BL31: Built : 05:06:58, Feb 24 2023

U-Boot SPL 2021.01-00003-g348dcefba7-dirty (Oct 02 2023 - 16:50:55 +0900)
SYSFW ABI: 3.1 (firmware rev 0x0008 '8.5.3--v08.05.03 (Chill Capybar')
Trying to boot from MMC2
1
2
3
4
5
6
mmc_start_init:0
10 0
111
112
113
114
11 0
mmc_complete_init:0


U-Boot 2021.01-00003-g348dcefba7-dirty (Oct 02 2023 - 16:50:55 +0900)

SoC:   AM62X SR1.0 GP
Model: Texas Instruments AM625 SK
EEPROM not available at 0x50, trying to read at 0x51
Reading on-board EEPROM at 0x51 failed 1
DRAM:  2 GiB
MMC:   mmc@fa10000: 0, mmc@fa00000: 1, mmc@fa20000: 2
Loading Environment from MMC... 1
2
3
4
5
6
mmc_start_init:0
10 0
111
112
113
114
11 0
mmc_complete_init:0
*** Warning - bad CRC, using default environment

In:    serial@2800000
Out:   serial@2800000
Err:   serial@2800000
EEPROM not available at 0x50, trying to read at 0x51
Reading on-board EEPROM at 0x51 failed 1
Net:   eth0: ethernet@8000000port@1
Hit any key to stop autoboot:  2  1  0 
1
2
3
4
5
6
mmc_start_init:0
10 0
111
112
113
114
11 0
mmc_complete_init:0
switch to partitions #0, OK
mmc1 is current device
1
2
3
4
5
6
mmc_start_init:0
10 0
111
112
113
114
11 0
mmc_complete_init:0
SD/MMC found on device 1
Failed to load 'boot.scr'
1490 bytes read in 4 ms (363.3 KiB/s)
Loaded env from uEnv.txt
Importing environment from mmc1 ...
Running uenvcmd ...
1 bytes read in 3 ms (0 Bytes/s)
Already setup.
18403840 bytes read in 760 ms (23.1 MiB/s)
53990 bytes read in 7 ms (7.4 MiB/s)
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Loading Device Tree to 000000008feef000, end 000000008fffffff ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.10.168-g2c23e6c538 (ubuntu@ubuntu-VirtualBox) (aarch64-none-linux-gnu-gcc (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10)) 9.2.1 20191025, GNU ld (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10)) 2.33.1.20191209) #115 SMP PREEMPT Mon Oct 2 17:05:17 JST 2023
[    0.000000] Machine model: Texas Instruments AM625 SK
[    0.000000] earlycon: ns16550a0 at MMIO32 0x0000000002800000 (options '')
[    0.000000] printk: bootconsole [ns16550a0] enabled
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009c800000, size 3 MiB
[    0.000000] OF: reserved mem: initialized node ipc-memories@9c800000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009cb00000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node m4f-dma-memory@9cb00000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009cc00000, size 14 MiB
[    0.000000] OF: reserved mem: initialized node m4f-memory@9cc00000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009da00000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node r5f-dma-memory@9da00000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009db00000, size 12 MiB
[    0.000000] OF: reserved mem: initialized node r5f-memory@9db00000, compatible id shared-dma-pool
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080000000-0x000000009c7fffff]
[    0.000000]   node   0: [mem 0x000000009c800000-0x000000009e6fffff]
[    0.000000]   node   0: [mem 0x000000009e700000-0x000000009e77ffff]
[    0.000000]   node   0: [mem 0x000000009e780000-0x000000009fffffff]
[    0.000000]   node   0: [mem 0x00000000a0000000-0x00000000ffffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000] cma: Reserved 512 MiB at 0x00000000dd000000
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.1 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: Trusted OS migration not required
[    0.000000] psci: SMC Calling Convention v1.2
[    0.000000] percpu: Embedded 22 pages/cpu s51032 r8192 d30888 u90112
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] CPU features: detected: GIC system register CPU interface
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 516096
[    0.000000] Kernel command line: console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000 root=PARTUUID=609e3af9-02 rw rootfstype=ext4 rootwait
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 1456816K/2097152K available (10752K kernel code, 1140K rwdata, 4044K rodata, 1920K init, 440K bss, 116048K reserved, 524288K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu: 	RCU event tracing is enabled.
[    0.000000] rcu: 	RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=1.
[    0.000000] 	Trampoline variant of Tasks RCU enabled.
[    0.000000] 	Tracing variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[    0.000000] GICv3: 256 SPIs implemented
[    0.000000] GICv3: 0 Extended SPIs implemented
[    0.000000] GICv3: Distributor has no Range Selector support
[    0.000000] GICv3: 16 PPIs implemented
[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000001880000
[    0.000000] ITS [mem 0x01820000-0x0182ffff]
[    0.000000] GIC: enabling workaround for ITS: Socionext Synquacer pre-ITS
[    0.000000] ITS@0x0000000001820000: Devices Table too large, reduce ids 20->19
[    0.000000] ITS@0x0000000001820000: allocated 524288 Devices @80800000 (flat, esz 8, psz 64K, shr 0)
[    0.000000] ITS: using cache flushing for cmd queue
[    0.000000] GICv3: using LPI property table @0x0000000080030000
[    0.000000] GIC: using cache flushing for LPI property table
[    0.000000] GICv3: CPU0: using allocated LPI pending table @0x0000000080040000
[    0.000000] arch_timer: cp15 timer(s) running at 200.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x2e2049d3e8, max_idle_ns: 440795210634 ns
[    0.000005] sched_clock: 56 bits at 200MHz, resolution 5ns, wraps every 4398046511102ns
[    0.008511] Console: colour dummy device 80x25
[    0.013102] Calibrating delay loop (skipped), value calculated using timer frequency.. 400.00 BogoMIPS (lpj=800000)
[    0.023785] pid_max: default: 32768 minimum: 301
[    0.028592] LSM: Security Framework initializing
[    0.033374] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.040953] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.050629] rcu: Hierarchical SRCU implementation.
[    0.055820] Platform MSI: msi-controller@1820000 domain created
[    0.062128] PCI/MSI: /bus@f0000/interrupt-controller@1800000/msi-controller@1820000 domain created
[    0.071375] EFI services will not be available.
[    0.076121] smp: Bringing up secondary CPUs ...
[    0.080762] smp: Brought up 1 node, 1 CPU
[    0.084860] SMP: Total of 1 processors activated.
[    0.089676] CPU features: detected: 32-bit EL0 Support
[    0.094932] CPU features: detected: CRC32 instructions
[    0.107598] CPU: All CPU(s) started at EL2
[    0.111803] alternatives: patching kernel code
[    0.117288] devtmpfs: initialized
[    0.127191] KASLR disabled due to lack of seed
[    0.131966] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.141940] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[    0.163210] pinctrl core: initialized pinctrl subsystem
[    0.169265] DMI not present or invalid.
[    0.173864] NET: Registered protocol family 16
[    0.179885] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[    0.187245] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.195315] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.203942] thermal_sys: Registered thermal governor 'step_wise'
[    0.203947] thermal_sys: Registered thermal governor 'power_allocator'
[    0.210484] cpuidle: using governor menu
[    0.221383] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.228354] ASID allocator initialised with 65536 entries
[    0.258374] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.265329] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.272186] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.279039] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    0.287066] cryptd: max_cpu_qlen set to 1000
[    0.294360] k3-chipinfo 43000014.chipid: Family:AM62X rev:SR1.0 JTAGID[0x0bb7e02f] Detected
[    0.303476] vcc_5v0: supplied by vmain_pd
[    0.308294] vcc_3v3_sys: supplied by vmain_pd
[    0.313193] vcc_1v8: supplied by vcc_3v3_sys
[    0.318538] iommu: Default domain type: Translated 
[    0.323864] SCSI subsystem initialized
[    0.327989] usbcore: registered new interface driver usbfs
[    0.333629] usbcore: registered new interface driver hub
[    0.339082] usbcore: registered new device driver usb
[    0.344519] pps_core: LinuxPPS API ver. 1 registered
[    0.349596] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.358948] PTP clock support registered
[    0.362988] EDAC MC: Ver: 3.0.0
[    0.366825] omap-mailbox 29000000.mailbox: omap mailbox rev 0x66fc9100
[    0.373930] FPGA manager framework
[    0.377487] Advanced Linux Sound Architecture Driver Initialized.
[    0.384639] clocksource: Switched to clocksource arch_sys_counter
[    0.391134] VFS: Disk quotas dquot_6.6.0
[    0.395200] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.406940] NET: Registered protocol family 2
[    0.411690] IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.420533] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear)
[    0.429417] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.437619] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear)
[    0.445351] TCP: Hash tables configured (established 16384 bind 16384)
[    0.452250] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear)
[    0.459163] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear)
[    0.466644] NET: Registered protocol family 1
[    0.471535] RPC: Registered named UNIX socket transport module.
[    0.477624] RPC: Registered udp transport module.
[    0.482434] RPC: Registered tcp transport module.
[    0.487243] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.493832] NET: Registered protocol family 44
[    0.498388] PCI: CLS 0 bytes, default 64
[    0.503070] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[    0.515181] Initialise system trusted keyrings
[    0.520022] workingset: timestamp_bits=46 max_order=19 bucket_order=0
[    0.530533] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.537065] NFS: Registering the id_resolver key type
[    0.542287] Key type id_resolver registered
[    0.546564] Key type id_legacy registered
[    0.550719] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.557575] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    0.565320] 9p: Installing v9fs 9p2000 file system support
[    0.605992] Key type asymmetric registered
[    0.610215] Asymmetric key parser 'x509' registered
[    0.615277] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    0.622870] io scheduler mq-deadline registered
[    0.627514] io scheduler kyber registered
[    0.633636] pinctrl-single 4084000.pinctrl: 34 pins, size 136
[    0.639991] pinctrl-single f4000.pinctrl: 171 pins, size 684
[    0.652981] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[    0.668794] brd: module loaded
[    0.677761] loop: module loaded
[    0.681820] megasas: 07.714.04.00-rc1
[    0.689613] usbcore: registered new interface driver asix
[    0.695199] usbcore: registered new interface driver ax88179_178a
[    0.701454] usbcore: registered new interface driver cdc_ether
[    0.707646] VFIO - User Level meta-driver version: 0.3
[    0.713617] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.720341] ehci-pci: EHCI PCI platform driver
[    0.724929] ehci-platform: EHCI generic platform driver
[    0.730399] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.736750] ohci-pci: OHCI PCI platform driver
[    0.741320] ohci-platform: OHCI generic platform driver
[    0.747130] usbcore: registered new interface driver cdc_acm
[    0.752919] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    0.761134] usbcore: registered new interface driver usblp
[    0.766775] usbcore: registered new interface driver usb-storage
[    0.773006] udc-core: couldn't find an available UDC - added [g_ether] to list of pending drivers
[    0.782707] i2c /dev entries driver
[    0.787926] sdhci: Secure Digital Host Controller Interface driver
[    0.794323] sdhci: Copyright(c) Pierre Ossman
[    0.799372] sdhci-pltfm: SDHCI platform and OF driver helper
[    0.806108] ledtrig-cpu: registered to indicate activity on CPUs
[    0.812536] SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping ....
[    0.819691] usbcore: registered new interface driver usbhid
[    0.825415] usbhid: USB HID core driver
[    0.830321] optee: probing for conduit method.
[    0.834916] optee: revision 3.20 (8e74d476)
[    0.835182] optee: dynamic shared memory is enabled
[    0.844726] optee: initialized driver
[    0.849598] usbcore: registered new interface driver snd-usb-audio
[    0.856010] usbcore: registered new interface driver snd-ua101
[    0.862028] usbcore: registered new interface driver snd-usb-caiaq
[    0.868381] usbcore: registered new interface driver snd-usb-6fire
[    0.874737] usbcore: registered new interface driver snd-usb-hiface
[    0.881168] usbcore: registered new interface driver snd-bcd2000
[    0.887333] usbcore: registered new interface driver snd_usb_pod
[    0.893511] usbcore: registered new interface driver snd_usb_podhd
[    0.899852] usbcore: registered new interface driver snd_usb_toneport
[    0.906459] usbcore: registered new interface driver snd_usb_variax
[    0.913349] NET: Registered protocol family 10
[    0.918726] Segment Routing with IPv6
[    0.922567] NET: Registered protocol family 17
[    0.927219] 9pnet: Installing 9P2000 support
[    0.931653] Key type dns_resolver registered
[    0.936452] Loading compiled-in X.509 certificates
[    0.950301] ti-sci 44043000.system-controller: lpm region is required for suspend but not provided.
[    0.959687] ti-sci 44043000.system-controller: ABI: 3.1 (firmware rev 0x0008 '8.5.3--v08.05.03 (Chill Capybar')
[    1.024307] omap-gpmc 3b000000.memory-controller: GPMC revision 6.0
[    1.030799] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[    1.039513] omap_i2c 20000000.i2c: bus 0 rev0.12 at 400 kHz
[    1.047145] omap_i2c 20010000.i2c: bus 1 rev0.12 at 100 kHz
[    1.053580] ti-sci-intr 4210000.interrupt-controller: Interrupt Router 5 domain created
[    1.062052] ti-sci-intr bus@f0000:interrupt-controller@a00000: Interrupt Router 3 domain created
[    1.071452] ti-sci-inta 48000000.interrupt-controller: Interrupt Aggregator domain 28 created
[    1.081035] ti-udma 485c0100.dma-controller: Number of rings: 82
[    1.089270] ti-udma 485c0100.dma-controller: Channels: 48 (bchan: 18, tchan: 12, rchan: 18)
[    1.100423] ti-udma 485c0000.dma-controller: Number of rings: 150
[    1.111053] ti-udma 485c0000.dma-controller: Channels: 35 (tchan: 20, rchan: 15)
[    1.121697] printk: console [ttyS2] disabled
[    1.126192] 2800000.serial: ttyS2 at MMIO 0x2800000 (irq = 27, base_baud = 3000000) is a 8250
[    1.134984] printk: console [ttyS2] enabled
[    1.134984] printk: console [ttyS2] enabled
[    1.143436] printk: bootconsole [ns16550a0] disabled
[    1.143436] printk: bootconsole [ns16550a0] disabled
[    1.159196] davinci_mdio 8000f00.mdio: Configuring MDIO in manual mode
[    1.204641] davinci_mdio 8000f00.mdio: davinci mdio revision 9.7, bus freq 1000000
[    1.213963] davinci_mdio 8000f00.mdio: phy[0]: device 8000f00.mdio:00, driver TI DP83825S
[    1.222189] davinci_mdio 8000f00.mdio: phy[1]: device 8000f00.mdio:01, driver TI DP83825S
[    1.230471] am65-cpsw-nuss 8000000.ethernet: initializing am65 cpsw nuss version 0x6BA01103, cpsw version 0x6BA81103 Ports: 3 quirks:00000006
[    1.243423] am65-cpsw-nuss 8000000.ethernet: Use random MAC address
[    1.249695] am65-cpsw-nuss 8000000.ethernet: initialized cpsw ale version 1.5
[    1.256820] am65-cpsw-nuss 8000000.ethernet: ALE Table size 512
[    1.263454] am65-cpsw-nuss 8000000.ethernet: CPTS ver 0x4e8a010c, freq:500000000, add_val:1 pps:0
[    1.273681] am65-cpsw-nuss 8000000.ethernet: set new flow-id-base 19
[    1.282685] try to get ref
[    1.285476] try to setrate
[    1.288964] dwc3 31000000.usb: Configuration mismatch. dr_mode forced to host
[    1.296418] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    1.301920] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[    1.309772] xhci-hcd xhci-hcd.0.auto: hcc params 0x0258fe6d hci version 0x110 quirks 0x0000000000010010
[    1.319211] xhci-hcd xhci-hcd.0.auto: irq 258, io mem 0x31000000
[    1.325367] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    1.330853] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[    1.338513] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0 SuperSpeed
[    1.345182] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[    1.353470] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.360682] usb usb1: Product: xHCI Host Controller
[    1.365560] usb usb1: Manufacturer: Linux 5.10.168-g2c23e6c538 xhci-hcd
[    1.372163] usb usb1: SerialNumber: xhci-hcd.0.auto
[    1.377483] hub 1-0:1.0: USB hub found
[    1.381277] hub 1-0:1.0: 1 port detected
[    1.385473] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    1.393633] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[    1.401886] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.409146] usb usb2: Product: xHCI Host Controller
[    1.414018] usb usb2: Manufacturer: Linux 5.10.168-g2c23e6c538 xhci-hcd
[    1.420627] usb usb2: SerialNumber: xhci-hcd.0.auto
[    1.425830] hub 2-0:1.0: USB hub found
[    1.429609] hub 2-0:1.0: config failed, hub doesn't have any ports! (err -19)
[    1.437064] done
[    1.439610] try to get ref
[    1.442357] try to setrate
[    1.446232] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    1.451757] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3
[    1.459659] xhci-hcd xhci-hcd.1.auto: hcc params 0x0258fe6d hci version 0x110 quirks 0x0000000000010010
[    1.469105] xhci-hcd xhci-hcd.1.auto: irq 259, io mem 0x31100000
[    1.475233] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    1.480722] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 4
[    1.488375] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[    1.495017] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[    1.503271] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.510483] usb usb3: Product: xHCI Host Controller
[    1.515354] usb usb3: Manufacturer: Linux 5.10.168-g2c23e6c538 xhci-hcd
[    1.521957] usb usb3: SerialNumber: xhci-hcd.1.auto
[    1.527256] hub 3-0:1.0: USB hub found
[    1.531055] hub 3-0:1.0: 1 port detected
[    1.535265] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
[    1.543419] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[    1.551673] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.558939] usb usb4: Product: xHCI Host Controller
[    1.563812] usb usb4: Manufacturer: Linux 5.10.168-g2c23e6c538 xhci-hcd
[    1.570417] usb usb4: SerialNumber: xhci-hcd.1.auto
[    1.575613] hub 4-0:1.0: USB hub found
[    1.579392] hub 4-0:1.0: config failed, hub doesn't have any ports! (err -19)
[    1.586908] done
[    1.590827] rtc-ti-k3 2b1f0000.rtc: registered as rtc0
[    1.596014] rtc-ti-k3 2b1f0000.rtc: setting system clock to 1970-01-01T00:00:08 UTC (8)
[    1.706431] cpu cpu0: dev_pm_opp_set_rate: failed to find current OPP for freq 1250000000 (-34)
[    1.715438] cpufreq: cpufreq_online: CPU0: Running at unlisted initial frequency: 1250000 KHz, changing to: 1000000 KHz
[    1.727841] mmc0: CQHCI version 5.10
[    1.746331] vdd_mmc1: supplied by vcc_3v3_sys
[    1.752284] pca953x 1-0022: supply vcc not found, using dummy regulator
[    1.759095] pca953x 1-0022: using AI
[    1.775267] mmc0: SDHCI controller on fa10000.mmc [fa10000.mmc] using ADMA 64-bit
[    1.784779] pca953x 1-0022: failed writing register
[    1.789836] pca953x: probe of 1-0022 failed with error -121
[    1.797607] mmc1: CQHCI version 5.10
[    1.804020] debugfs: Directory 'pd:53' with parent 'pm_genpd' already present!
[    1.814698] debugfs: Directory 'pd:52' with parent 'pm_genpd' already present!
[    1.822040] debugfs: Directory 'pd:51' with parent 'pm_genpd' already present!
[    1.829909] debugfs: Directory 'pd:182' with parent 'pm_genpd' already present!
[    1.837260] usb 3-1: new high-speed USB device number 2 using xhci-hcd
[    1.856725] ALSA device list:
[    1.859707]   No soundcards found.
[    1.863135] mmc1: SDHCI controller on fa00000.mmc [fa00000.mmc] using ADMA 64-bit
[    1.874256] Waiting for root device PARTUUID=609e3af9-02...
[    1.900447] mmc0: Command Queue Engine enabled
[    1.904930] mmc0: new HS200 MMC card at address 0001
[    1.910661] mmcblk0: mmc0:0001 S0J56X 14.8 GiB 
[    1.915541] mmcblk0boot0: mmc0:0001 S0J56X partition 1 31.5 MiB
[    1.921680] mmcblk0boot1: mmc0:0001 S0J56X partition 2 31.5 MiB
[    1.927816] mmcblk0rpmb: mmc0:0001 S0J56X partition 3 4.00 MiB, chardev (239:0)
[    1.941861] mmc1: new high speed SDXC card at address 59b4
[    1.948135] mmcblk1: mmc1:59b4 EC1S5 59.7 GiB 
[    1.954693]  mmcblk1: p1 p2
[    1.992884] usb 3-1: New USB device found, idVendor=0424, idProduct=2517, bcdDevice= 0.02
[    2.001571] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    2.071336] hub 3-1:1.0: USB hub found
[    2.075191] hub 3-1:1.0: 6 ports detected
[    2.399120] EXT4-fs (mmcblk1p2): recovery complete
[    2.406711] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.414888] VFS: Mounted root (ext4 filesystem) on device 179:98.
[    2.421011] usb 3-1.1: new full-speed USB device number 3 using xhci-hcd
[    2.429027] devtmpfs: mounted
[    2.433385] Freeing unused kernel memory: 1920K
[    2.438033] Run /sbin/init as init process
[    2.526221] usb 3-1.1: New USB device found, idVendor=0483, idProduct=5740, bcdDevice= 2.00
[    2.534925] usb 3-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.542464] usb 3-1.1: Product: STM32 Virtual ComPort
[    2.547855] usb 3-1.1: Manufacturer: STMicroelectronics
[    2.553357] usb 3-1.1: SerialNumber: 317336553531
[    2.615703] cdc_acm 3-1.1:1.0: ttyACM0: USB ACM device
[    2.750505] systemd[1]: System time before build time, advancing clock.
[    2.815097] systemd[1]: systemd 244.5+ running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR -SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid)
[    2.837201] systemd[1]: Detected architecture arm64.

Welcome to Arago 2021.09!

[    2.869555] systemd[1]: Set hostname to <am62xx-evm>.
[    3.290505] systemd[1]: Configuration file /usr/lib/systemd/system/launchsh.service is marked executable. Please remove executable permission bits. Proceeding anyway.
[    3.305450] systemd[1]: Configuration file /usr/lib/systemd/system/launchsh.service is marked world-writable. Please remove world writability permission bits. Proceeding anyway.
[    3.374294] random: systemd: uninitialized urandom read (16 bytes read)
[    3.384403] systemd[1]: Created slice system-getty.slice.
[  OK  ] Created slice system-getty.slice.
[    3.404840] random: systemd: uninitialized urandom read (16 bytes read)
[    3.413120] systemd[1]: Created slice system-serial\x2dgetty.slice.
[  OK  ] Created slice system-serial\x2dgetty.slice.
[    3.437072] random: systemd: uninitialized urandom read (16 bytes read)
[    3.445062] systemd[1]: Created slice User and Session Slice.
[  OK  ] Created slice User and Session Slice.
[    3.469156] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[  OK  ] Started Dispatch Password �cts to Console Directory Watch.
[    3.493000] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[  OK  ] Started Forward Password R�cuests to Wall Directory Watch.
[    3.516941] systemd[1]: Reached target Paths.
[  OK  ] Reached target Paths.
[    3.536809] systemd[1]: Reached target Remote File Systems.
[  OK  ] Reached target Remote File Systems.
[    3.556782] systemd[1]: Reached target Slices.
[  OK  ] Reached target Slices.
[    3.576783] systemd[1]: Reached target Swap.
[  OK  ] Reached target Swap.
[    3.615488] systemd[1]: Listening on RPCbind Server Activation Socket.
[  OK  ] Listening on RPCbind Server Activation Socket.
[    3.636956] systemd[1]: Reached target RPC Port Mapper.
[  OK  ] Reached target RPC Port Mapper.
[    3.662955] systemd[1]: Listening on Process Core Dump Socket.
[  OK  ] Listening on Process Core Dump Socket.
[    3.685222] systemd[1]: Listening on initctl Compatibility Named Pipe.
[  OK  ] Listening on initctl Compatibility Named Pipe.
[    3.712841] systemd[1]: Condition check resulted in Journal Audit Socket being skipped.
[    3.721811] systemd[1]: Listening on Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[    3.745488] systemd[1]: Listening on Journal Socket.
[  OK  ] Listening on Journal Socket.
[    3.765623] systemd[1]: Listening on Network Service Netlink Socket.
[  OK  ] Listening on Network Service Netlink Socket.
[    3.789381] systemd[1]: Listening on udev Control Socket.
[  OK  ] Listening on udev Control Socket.
[    3.809187] systemd[1]: Listening on udev Kernel Socket.
[  OK  ] Listening on udev Kernel Socket.
[    3.833709] systemd[1]: Mounting Huge Pages File System...
         Mounting Huge Pages File System...
[    3.861685] systemd[1]: Mounting POSIX Message Queue File System...
         Mounting POSIX Message Queue File System...
[    3.893671] systemd[1]: Mounting Kernel Debug File System...
         Mounting Kernel Debug File System...
[    3.926238] systemd[1]: Mounting Temporary Directory (/tmp)...
         Mounting Temporary Directory (/tmp)...
[    3.957954] systemd[1]: Starting Create list of static device nodes for the current kernel...
         Starting Create list of st�codes for the current kernel...
[    3.995304] systemd[1]: Starting Start psplash boot splash screen...
         Starting Start psplash boot splash screen...
[    4.028549] systemd[1]: Starting RPC Bind...
         Starting RPC Bind...
[    4.043766] systemd[1]: Condition check resulted in File System Check on Root Device being skipped.
[    4.061970] systemd[1]: Starting Journal Service...
         Starting Journal Service...
[    4.105719] systemd[1]: Starting Load Kernel Modules...
         Starting Load Kernel Modules...
[    4.157077] Loading cryptodev
[    4.160083] cryptodev: loading out-of-tree module taints kernel.
[    4.176953] systemd[1]: Starting Remount Root and Kernel File Systems...
         Starting Remount Root and Kernel File Systems cryptodev: disagrees about version of symbol crypto_skcipher_encrypt
[0m...
[    4.225949] systemd[1]: Starting udev Coldplug all Devices...
[    4.248895] cryptodev: Unknown symbol crypto_skcipher_encrypt (err -22)
         Starting udev Coldplug all Devices...
[    4.283558] cryptodev: disagrees about version of symbol fd_install
[    4.305979] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null)
[    4.318389] systemd[1]: Started RPC Bind.
[    4.322778] cryptodev: Unknown symbol fd_install (err -22)
[  OK  ] Started RPC Bind.
[    4.351613] systemd[1]: Mounted Huge Pages File System.
[    4.357220] cryptodev: disagrees about version of symbol crypto_skcipher_setkey
[  OK  ] Mounted Huge Pages File System.
[    4.383097] cryptodev: Unknown symbol crypto_skcipher_setkey (err -22)
[    4.395984] systemd[1]: Mounted POSIX Message Queue File System.
[    4.412981] cryptodev: disagrees about version of symbol crypto_skcipher_decrypt
[  OK  ] Mounted POSIX Message Queue File System.
[    4.436963] cryptodev: Unknown symbol crypto_skcipher_decrypt (err -22)
[    4.445556] systemd[1]: Mounted Kernel Debug File System.
[  OK  ] Mounted Kernel Debug File System.
[    4.466722] cryptodev: disagrees about version of symbol __close_fd
[    4.477623] systemd[1]: Mounted Temporary Directory (/tmp).
[  OK  ] Mounted Temporary Directory (/tmp) cryptodev: Unknown symbol __close_fd (err -22)
[0m.
[    4.515015] random: systemd-journal: uninitialized urandom read (16 bytes read)
[    4.525148] systemd[1]: Started Create list of static device nodes for the current kernel.
[    4.541172] cryptodev: disagrees about version of symbol crypto_alloc_skcipher
[  OK  ] Started Create list of sta�c nodes[    4.554280] random: systemd-journal: uninitialized urandom read (16 bytes read)
 for the current kernel.
[    4.569014] cryptodev: Unknown symbol crypto_alloc_skcipher (err -22)
[    4.577554] systemd[1]: Started Journal Service.
[  OK  ] Started Journal Service.[    4.594007] random: systemd-journal: uninitialized urandom read (16 bytes read)

[FAILED] Failed to start Start psplash boot splash screen.
See 'systemctl status psplash-start.service' for details.
[DEPEND] Dependency failed for Star�cprogress communication helper.
[FAILED] Failed to start Load Kernel Modules.
See 'systemctl status systemd-modules-load.service' for details.
[  OK  ] Started Remount Root and Kernel File Systems.
         Mounting Kernel Configuration File System...
         Starting Flush Journal to Persistent Storage...
[    4.816177] systemd-journald[173]: Received client request to flush runtime journal.
         Starting Apply Kernel Variables...
         Starting Create Static Device Nodes in /dev...
[  OK  ] Mounted Kernel Configuration File System.
[    4.899408] Loading sch_fq_codel
[  OK  ] Started Flush Journal to Persistent Storage.
[  OK  ] Started Apply Kernel Variables.
[  OK  ] Started Create Static Device Nodes in /dev.
[  OK  ] Reached target Local File Systems (Pre).
         Mounting /media/ram...
         Mounting /var/volatile...
         Starting udev Kernel Device Manager...
[  OK  ] Mounted /media/ram.
[  OK  ] Mounted /var/volatile.
         Starting Load/Save Random Seed...
[  OK  ] Reached target Local File Systems.
         Starting Create Volatile Files and Directories...
[  OK  ] Started udev Kernel Device Manager.
[  OK  ] Started Create Volatile Files and Directories.
         Starting Update UTMP about System Boot/Shutdown...
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Started udev Coldplug all Devices.
[    5.589711] random: systemd: uninitialized urandom read (16 bytes read)
[  OK  ] Reached target System Initialization.
[    5.625099] random: systemd: uninitialized urandom read (16 bytes read)
[  OK  ] Started Daily Cleanup of Temporary Directories.
[    5.657034] random: systemd: uninitialized urandom read (16 bytes read)
[  OK  ] Reached target Timers.
[  OK  ] Listening on D-Bus System Message Bus Socket.
[  OK  ] Listening on dropbear.socket.
[  OK  ] Reached target Sockets.
[  OK  ] Reached target Basic System.
[  OK  ] Started D-Bus System Message Bus.
         Starting Print notice about GPLv3 packages...
         Starting IPv6 Packet Filtering Framework...
         Starting IPv4 Packet Filtering Framework...
[  OK  ] Started GA.
         Starting Login Service...
[  OK  ] Started TEE Supplicant.
         Starting telnetd.service...
[  OK  ] Started IPv6 Packet Filtering Framework.
[  OK  ] Started IPv4 Packet Filtering Framework.
[  OK  ] Reached target Network (Pre).
         Starting Network Service...
[    6.382710] EXT4-fs (mmcblk0boot1): recovery complete
[  OK  ] Started telnetd.service.
[    6.420776] EXT4-fs (mmcblk0boot1): mounted filesystem with ordered data mode. Opts: (null)
         Starting LSB: Expand Rootfs of boot device...
[    6.489329] ext4 filesystem being mounted at /run/media/mmcblk0boot1 supports timestamps until 2038 (0x7fffffff)
[    6.738497] Loading esp32_spi
[    6.781550] ESP: SPI host config: GPIOs: Handshake[435] DataReady[439]
[    6.815494] ESP host driver claiming SPI bus [3],chip select [0] with init SPI Clock [1]
[    6.895448] random: systemd-journal: uninitialized urandom read (16 bytes read)
[    7.004704] random: crng init done
[    7.008129] random: 87 urandom warning(s) missed due to ratelimiting
[  OK  ] Started Load/Save Random Seed.
[  OK  ] Started Network Service.
         Starting Wait for Network to be Configured...
         Starting Network Name Resolution...
[  OK  ] Started LSB: Expand Rootfs of boot device.
[  OK  ] Started Login Service.
[  OK  ] Started Network Name Resolution.
[  OK  ] Reached target Network.
[  OK  ] Reached target Host and Network Name Lookups.
         Starting Permit User Sessions...
[  OK  ] Started Permit User Sessions.
[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyS2.
[  OK  ] Reached target Login Prompts.
         Starting Synchronize System and HW clocks...
[  OK  ] Started Synchronize System and HW clocks.
[    8.880884] Loading authenc
[    8.905504] Loading snd_soc_tlv320aic3x
***************************************************************
***************************************************************
NOTICE: This file system contains the following GPLv3 packages:
	bash
	cifs-utils
	dosfstools
	less
	libdw1
	libelf1
	libreadline8
	parted

If you do not wish to distribute GPLv3 components please remove
the above packages prior to distribution.  This can be done using
the opkg remove command.  i.e.:
  [    8.957803] Loading pruss
  opkg remove <package>
Where <package> is the name printed in the list above

NOTE: If the package is a dependency of another package you
      will be notified of the dependent packages.  You should
      use the --force-removal-of-dependent-packages option to
      also remove the dependent packages as well
***************************************************************
***************************************************************
[  OK  ] Started Print notice about GPLv3 packages.
[    9.056979] Loading mcrc
[    9.070634] Loading sha512_generic
[    9.076795] Loading cdns_dphy
[    9.093076] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_put_enum_double (err -2)
[    9.260829] Loading sa2ul
[    9.280931] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_read (err -2)
[    9.304904] Internal error: synchronous external abort: 96000010 [#1] PREEMPT SMP
[    9.312393] Modules linked in: sa2ul(+) pruss(+) sha512_generic cdns_dphy mcrc authenc esp32_spi(O) sch_fq_codel
[    9.322588] CPU: 0 PID: 193 Comm: systemd-udevd Tainted: G           O      5.10.168-g2c23e6c538 #115
[    9.331785] Hardware name: Texas Instruments AM625 SK (DT)
[    9.337260] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--)
[    9.343265] pc : clk_mux_get_parent+0x18/0x80
[    9.347615] lr : __clk_init_parent+0x3c/0x58
[    9.351873] sp : ffff8000115a35a0
[    9.355177] x29: ffff8000115a35a0 x28: ffff000005735150 
[    9.360480] x27: 0000000000000002 x26: 0000000000000001 
[    9.365783] x25: 0000000000000000 x24: ffff00000467f480 
[    9.371085] x23: ffff000005735100 x22: ffff000005735380 
[    9.376388] x21: ffff000005735280 x20: ffff000005735200 
[    9.381691] x19: ffff00000572a800 x18: 0000000000000001 
[    9.386994] x17: 0000000000000000 x16: 0000000000000000 
[    9.392297] x15: 0000afdbcd92e9e4 x14: 0000000000000069 
[    9.397600] x13: 0000000000000069 x12: 0000000000000008 
[    9.402902] x11: 0000000000000001 x10: 0101010101010101 
[    9.408205] x9 : 0000000000000000 x8 : ffff7f7f7f7f7f7f 
[    9.413507] x7 : fefdff2f2c6a6b62 x6 : 505c5b1900b0cfcf 
[    9.418810] x5 : cfcf3000195b5c50 x4 : ffff80001156503c 
[    9.424113] x3 : 6660606860606060 x2 : ffff80001055fcd0 
[    9.429416] x1 : 0000000000000000 x0 : ffff000005735200 
[    9.434720] Call trace:
[    9.437162]  clk_mux_get_parent+0x18/0x80
[    9.441163]  __clk_init_parent+0x3c/0x58
[    9.445076]  __clk_register+0x180/0x798
[    9.448902]  clk_hw_register+0x20/0x60
[    9.452642]  __clk_hw_register_mux+0x13c/0x1c0
[    9.457075]  clk_register_mux_table+0x4c/0x68
[    9.461428]  pruss_get+0x1a4/0x898 [pruss]
[    9.465517]  pruss_get+0x468/0x898 [pruss]
[    9.469605]  pruss_get+0x6bc/0x898 [pruss]
[    9.473695]  platform_drv_probe+0x54/0xa8
[    9.477697]  really_probe+0xec/0x400
[    9.481264]  driver_probe_device+0x58/0xb8
[    9.485351]  device_driver_attach+0x74/0x80
[    9.489524]  __driver_attach+0x68/0xf8
[    9.493265]  bus_for_each_dev+0x70/0xc0
[    9.497091]  driver_attach+0x24/0x30
[    9.500658]  bus_add_driver+0x150/0x200
[    9.504485]  driver_register+0x64/0x120
[    9.508310]  __platform_driver_register+0x48/0x58
[    9.513006]  init_module+0x24/0x1000 [pruss]
[    9.517269]  do_one_initcall+0x54/0x1b8
[    9.521097]  do_init_module+0x4c/0x1c8
[    9.524838]  load_module+0x1f58/0x23e8
[    9.528576]  __do_sys_finit_module+0xb8/0xf8
[    9.532834]  __arm64_sys_finit_module+0x20/0x30
[    9.537358]  el0_svc_common.constprop.0+0x78/0x1c8
[    9.542138]  do_el0_svc+0x24/0xa0
[    9.545447]  el0_svc+0x14/0x20
[    9.548495]  el0_sync_handler+0xb0/0xb8
[    9.552320]  el0_sync+0x180/0x1c0
[    9.555633] Code: 910003fd 3940b401 f9400c04 37280201 (b9400084) 
[    9.561718] ---[ end trace 5c49a828233fdb1c ]---
[   10.028826] Loading ti_k3_m4_remoteproc
[   10.166090] k3-m4-rproc 5000000.m4fss: assigned reserved memory node m4f-dma-memory@9cb00000
[   10.200707] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_test_bits (err -2)
[   10.416777] snd_soc_tlv320aic3x: Unknown symbol snd_soc_put_enum_double (err -2)
[   10.440679] k3-m4-rproc 5000000.m4fss: configured M4 for remoteproc mode
[   10.579409] k3-m4-rproc 5000000.m4fss: local reset is deasserted for device
[   10.596758] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_write (err -2)
[   10.749003] Loading rti_wdt
[   10.760866] Loading rti_wdt
[   10.765024] Loading rti_wdt
[   10.776990] Loading rti_wdt
[   10.779967] Loading rti_wdt
[   10.784766] Loading virtio_rpmsg_bus
[   10.829172] remoteproc remoteproc0: 5000000.m4fss is available
[   10.856617] snd_soc_tlv320aic3x: Unknown symbol devm_snd_soc_register_component (err -2)
[   10.936751] remoteproc remoteproc0: Direct firmware load for am62-mcu-m4f0_0-fw failed with error -2
[   10.956880] snd_soc_tlv320aic3x: Unknown symbol snd_soc_get_enum_double (err -2)
[   10.971183] remoteproc remoteproc0: powering up 5000000.m4fss
[   10.980802] remoteproc remoteproc0: Direct firmware load for am62-mcu-m4f0_0-fw failed with error -2
[   11.016782] remoteproc remoteproc0: request_firmware failed: -2
[   11.076443] am65-cpsw-nuss 8000000.ethernet eth1: PHY [8000f00.mdio:01] driver [TI DP83825S] (irq=POLL)
[   11.118114] am65-cpsw-nuss 8000000.ethernet eth1: configuring for phy/rgmii-rxid link mode
[   11.161422] snd_soc_tlv320aic3x: Unknown symbol snd_soc_info_volsw (err -2)
[   11.281305] am65-cpsw-nuss 8000000.ethernet eth0: PHY [8000f00.mdio:00] driver [TI DP83825S] (irq=POLL)
[   11.298155] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_put_volsw (err -2)
[   11.312679] am65-cpsw-nuss 8000000.ethernet eth0: configuring for phy/rgmii-rxid link mode
[   11.450730] snd_soc_tlv320aic3x: Unknown symbol snd_soc_add_component_controls (err -2)
[   11.567150] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_add_routes (err -2)
[   11.708815] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_kcontrol_dapm (err -2)
[   11.819018] snd_soc_tlv320aic3x: Unknown symbol snd_soc_info_enum_double (err -2)
[   11.928753] snd_soc_tlv320aic3x: Unknown symbol snd_soc_get_volsw (err -2)
[   12.047917] snd_soc_tlv320aic3x: Unknown symbol snd_soc_put_volsw (err -2)
[   12.143213] Loading snd_soc_simple_card_utils
[   12.171712] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_update_bits (err -2)
[   12.214378] snd_soc_simple_card_utils: Unknown symbol snd_soc_dai_set_tdm_slot (err -2)
[   12.260008] Loading crct10dif_ce
[   12.286910] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_new_controls (err -2)
[   12.333377] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_daifmt (err -2)
[   12.390796] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_get_volsw (err -2)
[   12.425241] snd_soc_simple_card_utils: Unknown symbol snd_soc_jack_add_gpios (err -2)
[   12.473241] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_mixer_update_power (err -2)
[   12.550020] snd_soc_simple_card_utils: Unknown symbol snd_soc_card_jack_new (err -2)
[   12.607451] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_get_enum_double (err -2)
[   12.664340] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_audio_routing (err -2)
[   12.750225] Loading snd_soc_tlv320aic3x
[   12.770282] snd_soc_simple_card_utils: Unknown symbol snd_soc_dai_set_sysclk (err -2)
[   12.805056] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_put_enum_double (err -2)
[   12.884472] snd_soc_simple_card_utils: Unknown symbol snd_soc_dapm_get_pin_switch (err -2)
[   12.920890] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_read (err -2)
[   12.988832] snd_soc_simple_card_utils: Unknown symbol snd_soc_runtime_calc_hw (err -2)
[   13.010871] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_test_bits (err -2)
[   13.093678] snd_soc_simple_card_utils: Unknown symbol snd_soc_dapm_put_pin_switch (err -2)
[   13.112698] snd_soc_tlv320aic3x: Unknown symbol snd_soc_put_enum_double (err -2)
[   13.182617] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_write (err -2)
[   13.205139] snd_soc_simple_card_utils: Unknown symbol snd_soc_dapm_info_pin_switch (err -2)
[   13.276738] snd_soc_tlv320aic3x: Unknown symbol devm_snd_soc_register_component (err -2)
[   13.297897] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_audio_simple_widgets (err -2)
[   13.408839] snd_soc_tlv320aic3x: Unknown symbol snd_soc_get_enum_double (err -2)
[   13.437049] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_card_name (err -2)
[   13.499190] snd_soc_tlv320aic3x: Unknown symbol snd_soc_info_volsw (err -2)
[   13.586507] Loading snd_soc_simple_card_utils
[   13.636795] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_put_volsw (err -2)
[   13.673064] snd_soc_simple_card_utils: Unknown symbol snd_soc_dai_set_tdm_slot (err -2)
[   13.740724] snd_soc_tlv320aic3x: Unknown symbol snd_soc_add_component_controls (err -2)
[   13.773544] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_daifmt (err -2)
[   13.833842] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_add_routes (err -2)
[   13.886157] snd_soc_simple_card_utils: Unknown symbol snd_soc_jack_add_gpios (err -2)
[   13.936731] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_kcontrol_dapm (err -2)
[   13.984764] snd_soc_simple_card_utils: Unknown symbol snd_soc_card_jack_new (err -2)
[   14.040793] snd_soc_tlv320aic3x: Unknown symbol snd_soc_info_enum_double (err -2)
[   14.086427] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_audio_routing (err -2)
[   14.144750] snd_soc_tlv320aic3x: Unknown symbol snd_soc_get_volsw (err -2)
[   14.216794] snd_soc_simple_card_utils: Unknown symbol snd_soc_dai_set_sysclk (err -2)
[   14.265984] snd_soc_tlv320aic3x: Unknown symbol snd_soc_put_volsw (err -2)
[   14.333677] snd_soc_simple_card_utils: Unknown symbol snd_soc_dapm_get_pin_switch (err -2)
[   14.360722] snd_soc_tlv320aic3x: Unknown symbol snd_soc_component_update_bits (err -2)
[   14.468938] snd_soc_simple_card_utils: Unknown symbol snd_soc_runtime_calc_hw (err -2)
[   14.496712] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_new_controls (err -2)
[   14.600724] snd_soc_simple_card_utils: Unknown symbol snd_soc_dapm_put_pin_switch (err -2)


 _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_ 
|     |  _[   14.617801] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_get_volsw (err -2)
| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project am62xx-evm ttyS2

Arago 2021.09 am62xx-evm ttyS2

am62xx-evm login: [   14.714418] snd_soc_simple_card_utils: Unknown symbol snd_soc_dapm_info_pin_switch (err -2)
[   14.757344] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_mixer_update_power (err -2)
[   14.802932] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_audio_simple_widgets (err -2)
[   14.856726] snd_soc_tlv320aic3x: Unknown symbol snd_soc_dapm_get_enum_double (err -2)
[   14.928756] snd_soc_simple_card_utils: Unknown symbol snd_soc_of_parse_card_name (err -2)
root

root@am62xx-evm:~# ifconfig 
eth0      Link encap:Ethernet  HWaddr 34:08:E1:87:A8:BD  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

eth1      Link encap:Ethernet  HWaddr 42:DD:D0:01:3D:71  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

ethap0    Link encap:Ethernet  HWaddr 94:B5:55:6B:90:39  
          inet addr:192.168.49.1  Bcast:192.168.49.255  Mask:255.255.255.0
          inet6 addr: fe80::96b5:55ff:fe6b:9039/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:1312 (1.2 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@am62xx-evm:~# phytool write     read eth1/0x1/0x16
0x0100
root@am62xx-evm:~# phytool read eth1/0x1/0x16d w r i t ephytool write eth1/0x1/0x16/0x16 0x110
root@am62xx-evm:~# phytool write eth1/0x1/0x16 0x110read eth1/0x1/0x16
0x0110
root@am62xx-evm:~# [  156.549062] am65-cpsw-nuss 8000000.ethernet eth1: Link is Up - 100Mbps/Full - flow control rx/tx
[  156.561814] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[  156.741081] am65-cpsw-nuss 8000000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[  156.751933] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
phytool read eth1/0x1/0x16
0x0110
root@am62xx-evm:~# phytool read eth1/0x1/0x16write eth1/0x1/0x16 0x110read eth1/0x1/0x16
root@am62xx-evm:~# ifconfig 
eth0      Link encap:Ethernet  HWaddr 34:08:E1:87:A8:BD  
          inet addr:192.168.39.1  Bcast:192.168.39.255  Mask:255.255.255.0
          inet6 addr: fe80::3608:e1ff:fe87:a8bd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:1444 (1.4 KiB)

eth1      Link encap:Ethernet  HWaddr 42:DD:D0:01:3D:71  
          inet6 addr: fe80::40dd:d0ff:fe01:3d71/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:2736 (2.6 KiB)

ethap0    Link encap:Ethernet  HWaddr 94:B5:55:6B:90:39  
          inet addr:192.168.49.1  Bcast:192.168.49.255  Mask:255.255.255.0
          inet6 addr: fe80::96b5:55ff:fe6b:9039/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:1396 (1.3 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@am62xx-evm:~# e ifconfig eth1 192.168.39.2
root@am62xx-evm:~# ifconfig eth1 192.168.39.2
eth0      Link encap:Ethernet  HWaddr 34:08:E1:87:A8:BD  
          inet addr:192.168.39.1  Bcast:192.168.39.255  Mask:255.255.255.0
          inet6 addr: fe80::3608:e1ff:fe87:a8bd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:19 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:1514 (1.4 KiB)

eth1      Link encap:Ethernet  HWaddr 42:DD:D0:01:3D:71  
          inet addr:192.168.39.2  Bcast:192.168.39.255  Mask:255.255.255.0
          inet6 addr: fe80::40dd:d0ff:fe01:3d71/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:3838 (3.7 KiB)

ethap0    Link encap:Ethernet  HWaddr 94:B5:55:6B:90:39  
          inet addr:192.168.49.1  Bcast:192.168.49.255  Mask:255.255.255.0
          inet6 addr: fe80::96b5:55ff:fe6b:9039/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:1396 (1.3 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@am62xx-evm:~# ifconfig 
eth0      Link encap:Ethernet  HWaddr 34:08:E1:87:A8:BD  
          inet addr:192.168.39.1  Bcast:192.168.39.255  Mask:255.255.255.0
          inet6 addr: fe80::3608:e1ff:fe87:a8bd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:1584 (1.5 KiB)

eth1      Link encap:Ethernet  HWaddr 42:DD:D0:01:3D:71  
          inet addr:192.168.39.2  Bcast:192.168.39.255  Mask:255.255.255.0
          inet6 addr: fe80::40dd:d0ff:fe01:3d71/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:3838 (3.7 KiB)

ethap0    Link encap:Ethernet  HWaddr 94:B5:55:6B:90:39  
          inet addr:192.168.49.1  Bcast:192.168.49.255  Mask:255.255.255.0
          inet6 addr: fe80::96b5:55ff:fe6b:9039/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:1396 (1.3 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@am62xx-evm:~#

0 Evan Mayhew over 1 year ago in reply to nakashima.bo

TI__Genius 17582 points

Hi Nakashima-san,

I discussed with the team and have more information requests for debug:

- Confirm trace length of RMII lines, and setup/hold time of TX/RX signals on MAC side

- Probe RMII lines during ping operation and share scope shot

- Perform tcpdump command during ping, to see packets sent vs. received

It appears the MDI side connections are working with link up, but the MAC side may not be valid.

Thank you,

Evan

0 nakashima.bo over 1 year ago in reply to Evan Mayhew

Prodigy 30 points

Hello Evan-san,

Please see the followings.

1)Trace length of RMII lines
All trace length of eth0 is longer than eth1, so I confirmed trace length of eth0 RMII signals as followings.
TX_D0: 31.98mm
TX_D1: 34.22mm
TX_EN: 34.63mm
RX_D0: 32.34mm
RX_D1: 29.26mm
CRS_DV: 35.63mm
50 MHz Clock (PHY -> MCU): 40.13mm

2)Setup/hold time of TX/RX signals on MAC side
I am sorry but how do you expect me to confirm it?
If from datasheet, the minimum values of these time are defined on AM62x datasheet.
If by probing TX/RX line, I cannot to confirm because these lines are always low (0V) as explained on the first of the following thread.
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1269687/am623-cannot-establish-ethernet-rmii-data-communication-tx-rx-between-mac-and-phy/4833929#4833929
>>We measured the waveform of main signal lines around PHY.
>>The waveforms of MDIO, MDC, 50MHzOut, TD_P/M, RD_P/M has the correct changes and seem no problem.
>>But the waveforms of TX_EN, TX_D0, TX_D1, RX_D0, RX_D1, RX_ER, CRS_DV are always 0V with no change.

3)Probe RMII lines during ping operation and share scope shot
This is explained on the first of the above thread, please confirm.

4)Perform tcpdump command during ping, to see packets sent vs. received
The result of tcpdump during ping from PC to PCB (MCU) was "no packet captured".

Regards,
Nakashima

0 Evan Mayhew over 1 year ago in reply to nakashima.bo

TI__Genius 17582 points

Hi Nakashima-san,

The 50 MHz clock should be length matched more precisely to the MAC TX/RX lines - the current offset may cause issues when sampling the MAC signals relative to the clock. However, this does not seem to be the root cause of the issue you are seeing.

The team found no issues with the current PHY-level implementation and status registers that would cause the MAC interface to fail to generate an output.

To confirm that there is no issue on the PHY-level, I suggest testing with a packet generator/checker direct to the MDI with the 825 in reverse loopback mode to validate the MDI and internal PHY signal chain:

If the generator receives the same data looped back, then the issue is isolated to the MAC / SoC side.

In this case, please follow-up with the MCU team to further discuss possible causes on the SoC side.

Thank you,

Evan

0 nakashima.bo over 1 year ago in reply to Evan Mayhew

Prodigy 30 points

Hello Evan-san,

Thanks for your comments.

As your suggestion, I tried to do MDI check as following procedure with the PHY in reverse loopback mode.
1. Connect LAN cable between PC and PCB.
2. Run ping command on PC.
3. Check Wireshark on PC whether two same ping request packet are shown on Ethernet network cyclically.

The result was that all ping request packet were shown cyclically as two same ones cyclically.

By your comments, I understand PHY team can determine that the diagram around PHY is no probelem and the PHY is operating normally from the confirmation results so far, so the cause of this issue is thought to be on the SoC (MAC) side.

Should I restart the discussion with the SoC team by posting new comment on this thread?
This thread was already closed the other day, but will posting a new reply comment make this thread open again?
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1269687/am623-cannot-establish-ethernet-rmii-data-communication-tx-rx-between-mac-and-phy/4833929#4833929

Give us an advice, thanks.

Nakashima

+1 Evan Mayhew over 1 year ago in reply to nakashima.bo

TI__Genius 17582 points

Hi Nakashima-san,

Thank you for confirming the reverse loopback test.

Yes, the MCU team is in a better position to support this issue.

Sincerely,

Evan

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