not able to boot linux(yocto build) in am335x

Try to use "zImage"

bootz < kernel RAM address > - < DTB address >

Ex:

bootz 0x80200000 - 0x80F80000


Do you have DTB support in your yocto build ?

Kernel version ?

Do you have DTB support in your yocto build ?

yes

Kernel version ?

3.14

Shall I have to use bootz instead of bootm ?

Can you please provide the bootargs ?

Thanks

Bikash

Shall I have to use bootz instead of bootm ?

Yes.

Ex for NFS booting:

setenv bootargs console=ttyO0,115200n8 ip=dhcp nfsroot=10.100.1.94:/usr/local/filesystem_am335x root=/dev/nfs rw rootwait

setenv bootcmd 'tftpboot 0x80F80000 am335x-evmsk.dtb;tftpboot 0x80200000 zImage;bootz 0x80200000 - 0x80F80000'

Hi Stalin,

Thanks a lot. Can you please provide the bootargs for SD boot ?

Thanks

Bikash

Copy the "zImage" and "am335x-evmsk.dtb" DTB file into "boot" directory of MMC card.


setenv bootargs console=ttyO0,115200n8 root=/dev/mmcblk0p2 ro rootfstype=ext3 rootwait ip=none

setenv bootcmd 'fatload mmc 0 0x80F80000 am335x-evmsk.dtb;fatload mmc 0 0x80200000 zImage;bootz 0x80200000 - 0x80F80000'

Hi Stalin,

I am getting the below error while booting from SD card.

VAR_AM335X# boot
reading zImage-var-som-am33.dtb
39203 bytes read in 10 ms (3.7 MiB/s)
reading zImage
4335720 bytes read in 473 ms (8.7 MiB/s)
Unknown command 'bootz' - try 'help'

Thanks

Bikash