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PROCESSOR-SDK-AM62X: Reboot is not working on AM62X board.

Naresh Nakka
Expert 1040 points
Part Number: PROCESSOR-SDK-AM62X
Other Parts Discussed in Thread: AM625

Hi Ti,

working on AM62X customised board with SDK version 09_00_00_03.

Observed that reboot is not working .

Could you please help me on this.

Thanks,

Naresh.

  • 0
    TI__Guru**** 168231 points

    Hi Naresh,

    What is the AM62x part number on your board?

    Naresh Nakka said:
    Observed that reboot is not working .

    reboot with Linux 'reboot' command? What is "not working"? What is the console log after the "reboot" command?

  • 0 in reply to Bin Liu
    Expert 1040 points

    Hi Bin Liu,

    reboot command is not working in  the linux shell.

    please find the consol logs after reboot .

    root@am62xx-evm:~# 
root@am62xx-evm:~# 
root@am62xx-evm:~# 
root@am62xx-evm:~# reboot
root@am62xx-evm:~#          Stopping Session c1 of User root...
[  OK  ] Removed slice Slice /system/modprobe.
[  OK  ] Stopped target Login Prompts.
[  OK  ] Stopped target RPC Port Mapper.
[  OK  ] Stopped target System Time Set.
[  OK  ] Stopped target Timer Units.
[  OK  ] Stopped Daily Cleanup of Temporary Directories.
[  OK  ] Closed Process Core Dump Socket.
[  OK  ] Closed Load/Save RF Kill Switch Status /dev/rfkill Watch.
         Stopping Avahi mDNS/DNS-SD Stack...
         Stopping containerd container runtime...
         Stopping Getty on tty1...
         Stopping Netperf Benchmark Server...
         Stopping NFS status monitor for NFSv2/3 locking....
         Stopping Serial Getty on ttyS2...
         Stopping Load/Save Random Seed...
         Starting Record Runlevel Change in UTMP...
         Stopping TEE Supplicant...
         Stopping LSB: Expand Rootfs of boot device...
[  OK  ] Stopped TEE Supplicant.
[  OK  ] Stopped Wait for Network to be Configured.
[  OK  ] Stopped Avahi mDNS/DNS-SD Stack.
[  OK  ] Stopped Netperf Benchmark Server.
[  OK  ] Stopped NFS status monitor for NFSv2/3 locking..
[  OK  ] Stopped containerd container runtime.
[  OK  ] Stopped Getty on tty1.
[  OK  ] Stopped Serial Getty on ttyS2.
[  OK  ] Stopped Load/Save Random Seed.
[  OK  ] Stopped LSB: Expand Rootfs of boot device.
[  OK  ] Stopped Session c1 of User root.
[  OK  ] Finished Record Runlevel Change in UTMP.
[  OK  ] Removed slice Slice /system/getty.
[  OK  ] Removed slice Slice /system/serial-getty.
[  OK  ] Stopped target Host and Network Name Lookups.
         Stopping User Login Management...
         Stopping telnetd.service...
         Stopping User Manager for UID 0...
[  OK  ] Stopped User Login Management.
[  OK  ] Stopped User Manager for UID 0.
[  OK  ] Stopped telnetd.service.
         Stopping User Runtime Directory /run/user/0...
[  OK  ] Unmounted /run/user/0.
[  OK  ] Stopped User Runtime Directory /run/user/0.
[  OK  ] Removed slice User Slice of UID 0.
         Stopping Permit User Sessions...
[  OK  ] Stopped Permit User Sessions.
[  OK  ] Stopped target Network.
[  OK  ] Stopped target Remote File Systems.
         Stopping Network Name Resolution...
[  OK  ] Stopped Network Name Resolution.
         Stopping Network Configuration...
[  OK  ] Stopped Network Configuration.
[  OK  ] Stopped target Preparation for Network.
[  OK  ] Stopped IPv6 Packet Filtering Framework.
[  OK  ] Stopped IPv4 Packet Filtering Framework.
[  OK  ] Stopped target Basic System.
[  OK  ] Stopped target Path Units.
[  OK  ] Stopped Dispatch Password …ts to Console Directory Watch.
[  OK  ] Stopped Forward Password R…uests to Wall Directory Watch.
[  OK  ] Stopped target Slice Units.
[  OK  ] Removed slice User and Session Slice.
[  OK  ] Stopped target Socket Units.
[  OK  ] Closed Avahi mDNS/DNS-SD Stack Activation Socket.
[  OK  ] Closed Docker Socket for the API.
[  OK  ] Closed dropbear.socket.
[  OK  ] Closed GPS (Global Positioning System) Daemon Sockets.
[  OK  ] Closed Network Service Netlink Socket.
         Stopping D-Bus System Message Bus...
[  OK  ] Stopped D-Bus System Message Bus.
[  OK  ] Closed D-Bus System Message Bus Socket.
[  OK  ] Stopped target System Initialization.
[  OK  ] Stopped Apply Kernel Variables.
         Stopping Network Time Synchronization...
[  OK  ] Stopped Network Time Synchronization.
[  OK  ] Stopped Create Volatile Files and Directories.
[  OK  ] Stopped target Local File Systems.
         Unmounting /media/ram...
         Unmounting Temporary Directory /tmp...
         Unmounting /var/volatile...
[  OK  ] Unmounted /media/ram.
[  OK  ] Unmounted Temporary Directory /tmp.
[  OK  ] Unmounted /var/volatile.
[  OK  ] Stopped target Preparation for Local File Systems.
[  OK  ] Stopped target Swaps.
[  OK  ] Reached target Unmount All Filesystems.
[  OK  ] Stopped Remount Root and Kernel File Systems.
[  OK  ] Stopped Create Static Device Nodes in /dev.
[  OK  ] Reached target System Shutdown.
[  OK  ] Reached target Late Shutdown Services.
[  OK  ] Finished System Reboot.
[  OK  ] Reached target System Reboot.
[   43.737077] kauditd_printk_skb: 3 callbacks suppressed
[   43.737106] audit: type=1334 audit(1651169475.664:13): prog-id=8 op=UNLOAD
[   43.766681] audit: type=1334 audit(1651169475.684:14): prog-id=7 op=UNLOAD
[   43.782598] audit: type=1334 audit(1651169475.688:15): prog-id=10 op=UNLOAD
[   43.796365] audit: type=1334 audit(1651169475.688:16): prog-id=9 op=UNLOAD
[   43.809704] audit: type=1334 audit(1651169475.720:17): prog-id=6 op=UNLOAD
[   43.817246] audit: type=1334 audit(1651169475.720:18): prog-id=5 op=UNLOAD
[   43.827085] audit: type=1334 audit(1651169475.720:19): prog-id=4 op=UNLOAD
[   43.838384] audit: type=1334 audit(1651169475.720:20): prog-id=3 op=UNLOAD
[   43.877723] systemd-shutdown[1]: Syncing filesystems and block devices.
[   43.972394] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
[   44.008877] systemd-journald[172]: Received SIGTERM from PID 1 (systemd-shutdow).
[   44.036076] audit: type=1335 audit(1651169475.964:21): pid=172 uid=0 auid=4294967295 tty=(none) ses=4294967295 comm="systemd-journal" exe="/lib/systemd/systemd-journald" nl-mcgrp=1 op=disconnect res=1
[   44.092438] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[   44.116498] systemd-shutdown[1]: Unmounting file systems.
[   44.126961] [469]: Remounting '/' read-only with options 'n/a'.
[   44.156961] EXT4-fs (mmcblk0p1): re-mounted. Quota mode: none.
[   44.169182] systemd-shutdown[1]: All filesystems unmounted.
[   44.174921] systemd-shutdown[1]: Deactivating swaps.
[   44.180310] systemd-shutdown[1]: All swaps deactivated.
[   44.185576] systemd-shutdown[1]: Detaching loop devices.
[   44.195088] systemd-shutdown[1]: All loop devices detached.
[   44.200757] systemd-shutdown[1]: Stopping MD devices.
[   44.206289] systemd-shutdown[1]: All MD devices stopped.
[   44.211743] systemd-shutdown[1]: Detaching DM devices.
[   44.217194] systemd-shutdown[1]: All DM devices detached.
[   44.222624] systemd-shutdown[1]: All filesystems, swaps, loop devices, MD devices and DM devices detached.
[   44.241280] systemd-shutdown[1]: Syncing filesystems and block devices.
[   44.249581] systemd-shutdown[1]: Rebooting.
[   44.253880] kvm: exiting hardware virtualization
[   44.300639] reboot: Restarting system

CTRL-A Z for help | 115200 8N1 | NOR | Minicom 2.7.1 | VT102 | Offline | ttyUSB0

    Thanks,

    Naresh

  • 0 in reply to Naresh Nakka
    TI__Guru**** 168231 points

    Hi Naresh,

    Can command 'reset' at the U-Boot prompt reboot the board?

  • 0 in reply to Bin Liu
    TI__Guru**** 168231 points

    What is the boot media of the board, SD card, eMMC or something else?

  • 0 in reply to Bin Liu
    Expert 1040 points

    Hi Bin Liu,

    Thanks for your Quick Response,

    • Boot media is eMMC
    • Reset command also not working in uboot prompt , please find below logs

    Logs snippet:

    U-Boot 2023.04-00001-gf5b119738d (Nov 08 2023 - 15:51:26 +0530)

    SoC: AM62X SR1.0 GP
    Model: Texas Instruments AM625 SK
    EEPROM not available at 80, trying to read at 81
    Reading on-board EEPROM at 0x51 failed -121
    DRAM: 2 GiB
    Core: 71 devices, 31 uclasses, devicetree: separate
    MMC: mmc@fa10000: 0, mmc@fa00000: 1
    Loading Environment from nowhere... OK
    In: serial
    Out: serial
    Err: serial
    EEPROM not available at 80, trying to read at 81
    Reading on-board EEPROM at 0x51 failed -121
    Net: eth0: ethernet@8000000port@1
    Hit any key to stop autoboot: 0
    =>
    =>
    => reset
    resetting ...

    Thanks,

    Naresh

  • 0 in reply to Naresh Nakka
    TI__Guru**** 168231 points

    Hi Maresh,

    Can you please try the following u-boot command, then try Linux reboot or u-boot reset?

    => mmc rst-function 0 1

  • 0 in reply to Bin Liu
    Expert 1040 points

    Hi Bin Liu,

    Thanks  Bin Liu for your support , reset and reboot wokring fine after that issuing "mmc rst-function 0 1" command.

    but in uboot even i eabled saveenv command in menuconfig , i didnt observed that saveenv command in uboot shell . so on everytime i will issue below commands in uboot in order to boot entire linux kernel through emmc .

    uboot# setenv mmcdev 0

    uboot#bootpart 0

    uboot#boot.

    observtions on my board:

    => saveenv
    Unknown command 'saveenv' - try 'help'
    => env save
    env - environment handling commands

    Usage:
    env default [-f] -a - [forcibly] reset default environment
    env default [-f] var [...] - [forcibly] reset variable(s) to their default values
    env delete [-f] var [...] - [forcibly] delete variable(s)
    env edit name - edit environment variable
    env exists name - tests for existence of variable
    env export [-t | -b | -c] [-s size] addr [var ...] - export environment
    env import [-d] [-t [-r] | -b | -c] addr [size] [var ...] - import environment
    env print [-a | name ...] - print environment
    env run var [...] - run commands in an environment variable
    env set [-f] name [arg ...]

    Could you please help me how to enable saveenv in uboot ?

    Thanks,

    Naresh

  • 0 in reply to Naresh Nakka
    TI__Guru**** 168231 points

    Hi Naresh,

    Glad the reboot issue is resolved.

    Please create a new E2E post for the U-Boot ENV issue so that it will be routed to our U-Boot expert for comments.

  • 0 in reply to Bin Liu
    Expert 1040 points
    Bin Liu said:
    at it will be

    sure thanks Bin Liu for your support.