Beaglebone black doesnt run initramfs to flash emmc

umit kayacik

Hi,

Related to below wiki link, I try to flash my sd card image to emmc of BBB.

I build modules and put them to sitara initramfs file system (sitara_flasher_initramfs) then build kernel with Processor SDK 2.0 (kernel initramfs option and path entered). The zImage is approx. 71MB and do the following commands to internal default u-boot on emmc.

DHCP takes ip and pull zImage with no problem.

DTB is also pulled and ruun with no problembut when I run bootz, it says on console "starting kernel" and waits, initramfs doesnt come ( I wait two hours :) ). Also led2 blinks with ~3-4 hz. Could you please help me to find way to copy my arago sd card image to emmc.

$dhcp

$run findfdt

$tftp ${fdtaddr} ${fdtfile}bootz ${loadaddr} - ${fdtaddr}

$bootz ${loadaddr} - ${fdtaddr}

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Hi,

I will ask the software team to take a look.

0 Yordan Kovachev over 9 years ago in reply to Biser Gatchev-XID

TI__Guru**** 161600 points

Hi,

Usually the console freezes at "starting kernel", when it cannot find the dtb file (dtb is not present, a wrong address is set in the u-boot config file. etc.), or the wrong dtb file is used.

Can you vefiry that ${fdtaddr} & ${loadaddr} are 0x88000000 & 0x82000000 respectively?

Best Regards,
Yordan

0 umit kayacik over 9 years ago in reply to Yordan Kovachev

Prodigy 250 points

Hi Yordan,

I checked the addresses from u-boot, and it seems they are correct. I also use am335x-boneblack.dtb, isnt it correct for beaglebone black ?

U-Boot 2015.10-00001-g143c9ee (Nov 06 2015 - 15:27:19 -0600), Build: jenkins-github_Bootloader-Builder-274

       Watchdog enabled
I2C:   ready
DRAM: 512 MiB
Reset Source: Global external warm reset has occurred.
Reset Source: Power-on reset has occurred.
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment

Net:   <ethaddr> not set. Validating first E-fuse MAC
cpsw
Hit any key to stop autoboot: 0
=> printenv fdt
fdt_addr_r fdtaddr fdtfile
=> printenv fdtaddr
fdtaddr=0x88000000
=> printenv loadaddr
loadaddr=0x82000000

Umit.

0 umit kayacik over 9 years ago in reply to Yordan Kovachev

Prodigy 250 points

Is there any solution for this problem ?

Ümit.

0 umit kayacik over 9 years ago in reply to umit kayacik

Prodigy 250 points

Could you please help me? Dtb and adresses arr correct and i use sdk uboot.img and mlo with arago rootfs.

Best regards
Umit

0 Yordan Kovachev over 9 years ago in reply to umit kayacik

TI__Guru**** 161600 points

Hi Umit,

Are you able to boot your device with SD Card?

Can you post your full environment (output of printenv)?

Have you done any modifications to u-boot code?

Best Regards,

Yordan

0 umit kayacik over 9 years ago in reply to Yordan Kovachev

Prodigy 250 points

Hi Yordan,

I solved problem. Actually initramfs is working but it doesnt put stdout to ttyO0 , it puts on tty1 when I connect to hdmi monitor I saw the fetcher.sh.

Best regards,

Umit.

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Beaglebone black doesnt run initramfs to flash emmc