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This section describes the an exemplary boot process, which means that the output depends on the specific system and has not to be the same, with its stage-specific outputs as mentioned in page "Board bring-up overview for TEI0022". The first section describes an overview with the information at which point which boot stage is started. The second section shows an exemplary excerpt from a boot process.

Overview of the console output during the boot process

Stage #Stage NameLineOutput Start
1BootROM
No output
2Preloader1U-Boot SPL 2013.01.01 (Jan 02 2020 - 11:23:24) ...
3Bootloader22U-Boot 2013.01.01 (Jan 06 2020 - 10:45:30) ...
4Kernel49Starting kernel ...
5Root Filesystem68Welcome to Poky (Yocto Project Reference Distro) 2.7.2 (warrior)!
6Linux86Poky (Yocto Project Reference Distro) 2.7.2 arrow-sockit ttyS0

Exemplary Boot Process Console Output

Code Block
titleBoot Process
linenumberstrue
U-Boot SPL 2013.01.01 (Jan 02 2020 - 11:23:24)

...


BOARD : Altera SOCFPGA Cyclone V Board

...


CLOCK: EOSC1 clock 25000 KHz

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CLOCK: EOSC2 clock 25000 KHz

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CLOCK: F2S_SDR_REF clock 0 KHz

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CLOCK: F2S_PER_REF clock 0 KHz

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CLOCK: MPU clock 600 MHz

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CLOCK: DDR clock 333 MHz

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CLOCK: UART clock 100000 KHz

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CLOCK: MMC clock 50000 KHz

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CLOCK: QSPI clock 400000 KHz

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RESET: COLD

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INFO : Watchdog enabled

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SDRAM: Initializing MMR registers

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SDRAM: Calibrating PHY

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SEQ.C: Preparing to start memory calibration

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SEQ.C: CALIBRATION PASSED

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SDRAM: 2048 MiB

...


ALTERA DWMMC: 0

...




U-Boot 2013.01.01 (Jan 06 2020 - 10:45:30)

...



CPU : Altera SOCFPGA Platform

...


BOARD : Altera SOCFPGA Cyclone V Board

...


I2C: ready

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DRAM: 2 GiB

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MMC: ALTERA DWMMC: 0

...


In: serial

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Out: serial

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Err: serial

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Skipped ethaddr assignment due to invalid EMAC address in EEPROM

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Net: mii0

...


Warning: failed to set MAC address

...



Hit any key to stop autoboot: 0

...


reading u-boot.scr

...


** Unable to read file u-boot.scr **

...


Optional boot script not found. Continuing to boot normally

...


reading zImage

...


4584536 bytes read in 219 ms (20 MiB/s)

...


reading socfpga.dtb

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19377 bytes read in 5 ms (3.7 MiB/s)

...


## Flattened Device Tree blob at 00000100

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Booting using the fdt blob at 0x00000100

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reserving fdt memory region: addr=0 size=1000

...


Loading Device Tree to 03ff8000, end 03fffbb0 ... OK

...



Starting kernel ...

...



Uncompressing Linux... done, booting the kernel.

...


[ 0.000000] Booting Linux on physical CPU 0x0

...


[ 0.000000] Linux version 4.9.0-g27c406b-dirty (soceds@ubuntu) (gcc version 5.5.0 (Linaro GCC 5.5-2017.10) ) #3 SMP Tue Mar 26 23:45:18 EDT 2019

...


[ 0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c5387d

...


[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

...


[ 0.000000] OF: fdt:Machine model: Trenz M Series Cyclone V SoC Development Kit

...


[ 0.000000] Memory policy: Data cache writealloc

...


[ 0.000000] percpu: Embedded 14 pages/cpu @eefcb000 s26944 r8192 d22208 u57344

...


[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 522752

...


[ 0.000000] Kernel command line: console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait

...



...

...


... Skipping

...

 lines  until the last one ...

...


...

...



[ 1.849673] systemd[1]: Detected architecture arm.

...



Welcome to Poky (Yocto Project Reference Distro) 2.7.2 (warrior)!

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[ 1.888466] systemd[1]: Set hostname to <arrow-sockit>.

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[ 2.113176] systemd[1]: File /lib/systemd/system/systemd-journald.service:12 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.

...


[ 2.130237] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)

...


[ 2.444313] systemd[1]: Listening on udev Control Socket.

...


[ OK ] Listening on udev Control Socket.

...


[ 2.486269] systemd[1]: Listening on Syslog Socket.

...


[ OK ] Listening on Syslog Socket.

...


[ 2.517683] systemd[1]: Started Forward Password Requests to Wall Directory Watch.

...


[ OK ] Started Forward Password R???uests to Wall Directory Watch.

...



...

...


... Skipping

...

 lines  until the last one ...

...


...

...



[ OK ] Started Update UTMP about System Runlevel Changes.

...



Poky (Yocto Project Reference Distro) 2.7.2 arrow-sockit ttyS0

...



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