This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM3352: Linux kernel boot time too long

Part Number: AM3352
Other Parts Discussed in Thread: AM3358

Hello,

We are using linux kernel 4.4.32 on custom board having AM3352. We observed that boot process is taking too much time after the print "Starting kernel..." .

Booting hangs here for 10 seconds and the next prints of kernel starts.

In between boot process we are receiving below print for different 3-4 times, and it hangs for 6-7 seconds each time:

[   ***] (2 of 2) A start job is running for Login Service (59s / 2min 8s)[   65.317937]

Below is the full boot log:

U-Boot SPL 2017.01 (Apr 12 2018 - 12:01:11)
Trying to boot from MMC2
reading u-boot.img
reading u-boot.img
reading u-boot.img
reading u-boot.img


U-Boot 2017.01 (Apr 12 2018 - 12:01:11 +0530)

CPU  : AM335X-GP rev 2.1
Model: TI AM335x EVM
DRAM:  1 GiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **
Using default environment

<ethaddr> not set. Validating first E-fuse MAC
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
3857280 bytes read in 775 ms (4.7 MiB/s)
36283 bytes read in 29 ms (1.2 MiB/s)
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Loading Device Tree to 8fff4000, end 8ffffdba ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.4.32-gc779b97590 (einfochips@AHMLPT0458) (gcc version 6.2.1 20161016 (Linaro GCC 6.2-2016.11) ) #7 PREEMPT Wed A
pr 25 18:52:33 IST 2018
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: TI AM335x EVM
[    0.000000] cma: Reserved 48 MiB at 0xbd000000
[    0.000000] Memory policy: Data cache writeback
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM335X ES2.1 (neon )
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260416
[    0.000000] Kernel command line: console=ttyO0,115200n8 root=PARTUUID=00000000-02 rw rootfstype=ext4 rootwait
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 978344K/1048576K available (7447K kernel code, 336K rwdata, 2492K rodata, 268K init, 292K bss, 21080K reserved, 49152K c
ma-reserved, 212992K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc09bcfec   (9940 kB)
[    0.000000]       .init : 0xc09bd000 - 0xc0a00000   ( 268 kB)
[    0.000000]       .data : 0xc0a00000 - 0xc0a54030   ( 337 kB)
[    0.000000]        .bss : 0xc0a54030 - 0xc0a9d33c   ( 293 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 32.
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[    0.000028] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000074] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000098] OMAP clocksource: timer1 at 24000000 Hz
[    0.000452] clocksource_probe: no matching clocksources found
[    0.000786] Console: colour dummy device 80x30
[    0.000843] Calibrating delay loop... 298.59 BogoMIPS (lpj=1492992)
[    0.067815] pid_max: default: 32768 minimum: 301
[    0.068048] Security Framework initialized
[    0.068144] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.068173] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.069677] Initializing cgroup subsys io
[    0.069738] Initializing cgroup subsys memory
[    0.069810] Initializing cgroup subsys devices
[    0.069842] Initializing cgroup subsys freezer
[    0.069872] Initializing cgroup subsys perf_event
[    0.069900] Initializing cgroup subsys pids
[    0.069960] CPU: Testing write buffer coherency: ok
[    0.070696] Setting up static identity map for 0x80008200 - 0x80008258
[    0.075882] devtmpfs: initialized
[    0.104764] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[    0.136243] omap_hwmod: debugss: _wait_target_disable failed
[    0.199619] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.207092] pinctrl core: initialized pinctrl subsystem
[    0.210232] NET: Registered protocol family 16
[    0.214965] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.237906] cpuidle: using governor ladder
[    0.267888] cpuidle: using governor menu
[    0.278646] OMAP GPIO hardware version 0.1
[    0.303207] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.368451] edma 49000000.edma: TI EDMA DMA engine driver
[    0.378430] SCSI subsystem initialized
[    0.379438] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c2_pins, deferring p
robe
[    0.379812] pps_core: LinuxPPS API ver. 1 registered
[    0.379836] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.379916] PTP clock support registered
[    0.380063] EDAC MC: Ver: 3.0.0
[    0.382567] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[    0.384669] Bluetooth: Core ver 2.21
[    0.384782] NET: Registered protocol family 31
[    0.384802] Bluetooth: HCI device and connection manager initialized
[    0.384837] Bluetooth: HCI socket layer initialized
[    0.384866] Bluetooth: L2CAP socket layer initialized
[    0.384961] Bluetooth: SCO socket layer initialized
[    0.387323] clocksource: Switched to clocksource timer1
[    0.414062] NET: Registered protocol family 2
[    0.415729] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.415960] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[    0.416179] TCP: Hash tables configured (established 8192 bind 8192)
[    0.416394] UDP hash table entries: 512 (order: 1, 8192 bytes)
[    0.416465] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)
[    0.416816] NET: Registered protocol family 1
[    0.417708] RPC: Registered named UNIX socket transport module.
[    0.417741] RPC: Registered udp transport module.
[    0.417757] RPC: Registered tcp transport module.
[    0.417773] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.419217] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[    0.423733] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.445309] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.449779] NFS: Registering the id_resolver key type
[    0.449938] Key type id_resolver registered
[    0.449957] Key type id_legacy registered
[    0.450137] ntfs: driver 2.1.32 [Flags: R/O].
[    0.481530] bounce: pool size: 64 pages
[    0.482116] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248)
[    0.482171] io scheduler noop registered
[    0.482208] io scheduler deadline registered
[    0.482310] io scheduler cfq registered (default)
[    0.484915] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[    0.649405] Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
[    0.658494] omap_uart 44e09000.serial: no wakeirq for uart0
[    0.658931] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 158, base_baud = 3000000) is a OMAP UART0
[    1.303289] console [ttyO0] enabled
[    1.308225] omap_uart 48024000.serial: no wakeirq for uart2
[    1.314591] 48024000.serial: ttyO2 at MMIO 0x48024000 (irq = 159, base_baud = 3000000) is a OMAP UART2
[    1.325619] omap_uart 481a6000.serial: no wakeirq for uart3
[    1.331910] 481a6000.serial: ttyO3 at MMIO 0x481a6000 (irq = 160, base_baud = 3000000) is a OMAP UART3
[    1.342885] omap_uart 481a8000.serial: no wakeirq for uart4
[    1.349166] 481a8000.serial: ttyO4 at MMIO 0x481a8000 (irq = 161, base_baud = 3000000) is a OMAP UART4
[    1.360217] [drm] Initialized drm 1.1.0 20060810
[    1.383335] loop: module loaded
[    1.395113] libphy: Fixed MDIO Bus: probed
[    1.402075] ksz8863 spi1.0: chip id 0x8831
[    1.409731] libphy: Switch MII bus: probed
[    1.443180] ksz8863: 0xC6(198) ->0xA
[    1.467166] cpsw 4a100000.ethernet: No slave[1] phy_id, phy-handle, or fixed-link property
[    1.476170] cpsw 4a100000.ethernet: Detected MACID = f4:5e:ab:39:6c:6c
[    1.498812] cpsw 4a100000.ethernet: cpts: overflow check period 850
[    1.509011] mousedev: PS/2 mouse device common for all mice
[    1.516424] i2c /dev entries driver
[    1.524188] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    1.531899] Bluetooth: HCI UART driver ver 2.3
[    1.536632] Bluetooth: HCI UART protocol LL registered
[    1.543045] cpuidle: enable-method property 'ti,am3352' found operations
[    1.551908] omap_hsmmc 48060000.mmc: Got CD GPIO
[    1.678793] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.693122] mmc0: new high speed SDHC card at address aaaa
[    1.700271] mmcblk0: mmc0:aaaa SL16G 14.8 GiB
[    1.712828]  mmcblk0: p1 p2 p3 p4 < p5 p6 >
[    1.759783] nf_conntrack version 0.5.0 (16054 buckets, 64216 max)
[    1.766493] mmc1: MAN_BKOPS_EN bit is not set
[    1.774453] ip_tables: (C) 2000-2006 Netfilter Core Team
[    1.780392] mmc1: new high speed MMC card at address 0001
[    1.788930] NET: Registered protocol family 10
[    1.795442] mmcblk1: mmc1:0001 W62704 3.56 GiB
[    1.802189] sit: IPv6 over IPv4 tunneling driver
[    1.807903] mmcblk1boot0: mmc1:0001 W62704 partition 1 2.00 MiB
[    1.815962] NET: Registered protocol family 17
[    1.821486] mmcblk1boot1: mmc1:0001 W62704 partition 2 2.00 MiB
[    1.828056] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[    1.843421] Bluetooth: RFCOMM TTY layer initialized
[    1.848964]  mmcblk1: p1 p2
[    1.856093] Bluetooth: RFCOMM socket layer initialized
[    1.862826] Bluetooth: RFCOMM ver 1.11
[    1.867070] 8021q: 802.1Q VLAN Support v1.8
[    1.875365] Key type dns_resolver registered
[    1.880407] omap_hsmmc 47810000.mmc: card claims to support voltages below defined range
[    1.889085] omap_voltage_late_init: Voltage driver support not added
[    1.898408] cpufreq: cpufreq_online: CPU0: Running at unlisted freq: 600000 KHz
[    1.906302] cpu cpu0: dev_pm_opp_domain_set_rate: failed to find current OPP for freq 600000000 (-34)
[    1.916428] cpufreq: cpufreq_online: CPU0: Unlisted initial frequency changed to: 300000 KHz
[    1.938856] mmc2: queuing unknown CIS tuple 0x91 (3 bytes)
[    1.952973] mmc2: new SDIO card at address 0001
[    1.962949] rtc-pcf8563 2-0051: chip found, driver version 0.4.4
[    1.995899] rtc-pcf8563 2-0051: rtc core: registered rtc-pcf8563 as rtc0
[    2.004610] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[    2.014579] rtc-pcf8563 2-0051: setting system clock to 2018-04-25 07:01:07 UTC (1524639667)
[    2.047662] sw-ksz8863: disabling
[    2.079931] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.089147] VFS: Mounted root (ext4 filesystem) on device 179:2.
[    2.107066] devtmpfs: mounted
[    2.112767] Freeing unused kernel memory: 268K (c09bd000 - c0a00000)
[    2.119722] This architecture does not have kernel memory protection.
[    2.566150] random: systemd: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    2.590218] random: systemd: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    2.655134] systemd[1]: systemd 229 running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRY
PT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN)
[    2.677238] systemd[1]: Detected architecture arm.

Welcome to Arago 2016.12!

[    2.713502] systemd[1]: Set hostname to <am335x-evm>.
[    3.084846] random: systemd-sysv-ge: uninitialized urandom read (16 bytes read, 20 bits of entropy available)
[    3.133501] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read, 20 bits of entropy available)
[    3.154406] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read, 20 bits of entropy available)
[    3.218274] random: systemd-sysv-ge: uninitialized urandom read (16 bytes read, 22 bits of entropy available)
[    3.360323] random: systemd: uninitialized urandom read (16 bytes read, 25 bits of entropy available)
[    3.378454] random: systemd: uninitialized urandom read (16 bytes read, 25 bits of entropy available)
[    3.391399] random: systemd: uninitialized urandom read (16 bytes read, 25 bits of entropy available)
[    3.406797] random: systemd: uninitialized urandom read (16 bytes read, 25 bits of entropy available)
[    5.396542] systemd[1]: Listening on Syslog Socket.
[  OK  ] Listening on Syslog Socket.
[    5.419854] systemd[1]: Listening on Journal Socket.
[  OK  ] Listening on Journal Socket.
[    5.449550] systemd[1]: Listening on udev Control Socket.
[  OK  ] Listening on udev Control Socket.
[    5.478565] systemd[1]: Reached target Remote File Systems.
[  OK  ] Reached target Remote File Systems.
[    5.518263] systemd[1]: Created slice System Slice.
[  OK  ] Created slice System Slice.
[    5.556099] systemd[1]: Starting Create list of required static device nodes for the current kernel...
         Starting Create list of required st... nodes for the current kernel...
[    5.615279] systemd[1]: Created slice User and Session Slice.
[  OK  ] Created slice User and Session Slice.
[    5.693755] systemd[1]: Created slice system-serial\x2dgetty.slice.
[  OK  ] Created slice system-serial\x2dgetty.slice.
[    5.750184] systemd[1]: Listening on Network Service Netlink Socket.
[  OK  ] Listening on Network Service Netlink Socket.
[    5.779103] systemd[1]: Listening on udev Kernel Socket.
[  OK  ] Listening on udev Kernel Socket.
[    5.809795] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[  OK  ] Started Dispatch Password Requests to Console Directory Watch.
[    5.843633] systemd[1]: Created slice system-getty.slice.
[  OK  ] Created slice system-getty.slice.
[    5.894515] systemd[1]: Starting Load Kernel Modules...
         Starting Load Kernel Modules...
[    5.939953] systemd[1]: Listening on Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[    6.036881] systemd[1]: Starting Journal Service...
         Starting Journal Service...
[    6.102228] cryptodev: driver 1.8 loaded.
[    6.192228] systemd[1]: Mounting Temporary Directory...
         Mounting Temporary Directory...
[    6.321882] systemd[1]: Starting Remount Root and Kernel File Systems...
         Starting Remount Root and Kernel File Systems...
[    6.541230] systemd[1]: Mounting Debug File System...
         Mounting Debug File System...
[    6.620395] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[  OK  ] Started Forward Password Requests to Wall Directory Watch.
[    6.709796] systemd[1]: Reached target Paths.
[  OK  ] Reached target Paths.
[    6.799940] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[  OK  ] Listening on /dev/initctl Compatibility Named Pi[    6.895457] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
pe.
[    6.919439] systemd[1]: Reached target Slices.
[  OK  ] Reached target Slices.
[    6.979255] systemd[1]: Reached target Swap.
[  OK  ] Reached target Swap.
[    7.074953] systemd[1]: Mounting POSIX Message Queue File System...
         Mounting POSIX Message Queue File System...
[    7.241453] systemd[1]: Starting Setup Virtual Console...
         Starting Setup Virtual Console...
[    8.748207] systemd[1]: Mounted POSIX Message Queue File System.
[  OK  ] Mounted POSIX Message Queue File System.
[    8.778950] systemd[1]: Mounted Debug File System.
[  OK  ] Mounted Debug File System.
[    8.808773] systemd[1]: Mounted Temporary Directory.
[  OK  ] Mounted Temporary Directory.
[    8.841058] systemd[1]: Started Journal Service.
[  OK  ] Started Journal Service.
[  OK  ] Started Create list of required sta...ce nodes for the current kernel.
[  OK  ] Started Load Kernel Modules.
[  OK  ] Started Remount Root and Kernel File Systems.
[  OK  ] Started Setup Virtual Console.
         Starting udev Coldplug all Devices...
         Mounting Configuration File System...
         Starting Apply Kernel Variables...
         Starting Create Static Device Nodes in /dev...
         Starting Flush Journal to Persistent Storage...
[  OK  ] Mounted Configuration File System.
[  OK  ] Started Apply Kernel Variables.
[  OK  ] Started Create Static Device Nodes in /dev.
[   18.144455] systemd-journald[104]: Received request to flush runtime journal from PID 1
[   18.157616] random: nonblocking pool is initialized
[  OK  ] Started Flush Journal to Persistent Storage.
[  OK  ] Reached target Local File Systems (Pre).
         Mounting /media/ram...
         Mounting /var/volatile...
         Starting udev Kernel Device Manager...
[  OK  ] Mounted /var/volatile.
[  OK  ] Mounted /media/ram.
[  OK  ] Started udev Kernel Device Manager.
[  OK  ] Started udev Coldplug all Devices.
[   24.435832] TI-am335x-tsc TI-am335x-tsc: ti,charge-delay not specified
[   24.599703] input: ti-tsc as /devices/platform/ocp/44e0d000.tscadc/TI-am335x-tsc/input/input0
[   26.593798] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[   26.805977] wlcore: loaded
[  OK  ] Found device /dev/ttyO0.
[   29.144830] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[   30.613001] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[  OK  ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
         Starting Load/Save Random Seed...
[  OK  ] Reached target Local File Systems.
         Starting Create Volatile Files and Directories...
[  OK  ] Started Load/Save Random Seed.
[  OK  ] Started Create Volatile Files and Directories.
         Starting Network Time Synchronization...
         Starting Update UTMP about System Boot/Shutdown...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.
[  OK  ] Started Network Time Synchronization.
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Reached target System Time Synchronized.
         Starting Synchronize System and HW clocks...
[  OK  ] Started Synchronize System and HW clocks.
[  OK  ] Reached target System Initialization.
[  OK  ] Listening on RPCbind Server Activation Socket.
[  OK  ] Listening on D-Bus System Message Bus Socket.
[  OK  ] Started Daily Cleanup of Temporary Directories.
[  OK  ] Reached target Timers.
[  OK  ] Listening on dropbear.socket.
[  OK  ] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
[  OK  ] Reached target Sockets.
[  OK  ] Reached target Basic System.
         Starting Permit User Sessions...
[  OK  ] Started System Logging Service.
         Starting Telephony service...
[  OK  ] Started A userspace daemon that run... under the eCryptfs mount point.
[  OK  ] Started Kernel Logging Service.
         Starting Avahi mDNS/DNS-SD Stack...
[  OK  ] Started D-Bus System Message Bus.
[  OK  ] Started Avahi mDNS/DNS-SD Stack.
[  OK  ] Started Telephony service.
         Starting Network Service...
         Starting Login Service...
[  OK  ] Started Permit User Sessions.
[  OK  ] Started Network Service.
[   51.577877] wlcore: firmware booted (Rev 6.3.10.0.133)
[   51.758889] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   51.957964] net eth0: initializing cpsw version 1.12 (0)
[   51.963753] net eth0: initialized cpsw ale version 1.4
[   52.013564] net eth0: ALE Table size 1024
[   52.107861] net eth0: phy found : id is : 0x0
[   52.112838] libphy: PHY  not found
[   52.116535] net eth0: phy "" not found on slave 1, err -19
[   52.223441] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   52.277819] 8021q: adding VLAN 0 to HW filter on device eth0
[   54.107888] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off
[   54.116405] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[  OK  ] Reached target Network.
         Starting Network Name Resolution...
         Starting Network Time Service...
         Starting LLDP daemon...
         Starting Lightning Fast Webserver With Light System Requirements...
[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyO0.
[  OK  ] Started LLDP daemon.
[  OK  ] Started Network Time Service.
[  OK  ] Started Login Service.
[  OK  ] Started Network Name Resolution.
[  OK  ] Started Lightning Fast Webserver With Light System Requirements.

 _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project http://arago-project.org am335x-evm ttyO0

Arago 2016.12 am335x-evm ttyO0

am335x-evm login: root

Thanks,

Rohit

  • Hello Rohit,

    Please, read this thread. After the "Starting kernel..." message the compressed kernel starts to decompress itself. There are some techniques to reduce this time by loading decompressed kernel or changing its compression. For more details, please read this thread too.

    Best regards,
    Kemal

  • Hi Kemal,

    Thanks for your reply.

    Before this, we were using same kernel with AM3358 and we did not observe this much boot time. I observed below differance in frequency and governor:

    In AM3358BZCZA100 based board:

    root@am335x-evm:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

    300000 600000 720000 800000 1000000

    root@am335x-evm:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
    1000000

    root@am335x-evm:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

    userspace

    In AM3352BZCEA30 based board:

    root@am335x-evm:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
    300000

    root@am335x-evm:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
    300000

    root@am335x-evm:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
    ondemand

    Why in AM3352BZCEA30 based board do not have other available frequencies? How can I add and use those? Also How can I change governor?

    Thanks,

    Rohit

  • Because 300MHz is the highest frequency at which AM3352BZCEA30 can operate.