Hi saida
uboot version can be found in i.MX_Linux_Release_Notes.pdf
included in documents L3.14.28_1.0.0_LINUX_DOCS
For modifications one can look at i.MX_6_BSP_Porting_Guide.pdf
Best regards
igor
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thank you for your reply
i gone through that document which shows that u-boot-2014.04 is supporting version
i downloaded source code and i have done following steps
$ tar xzf u-boot-2014.04.tar.bz
$ cd u-boot
$ make mx6dlsabresd_config (it was showing some nitrogenxl and config for mx6dlsabresd board)
generated u-boot.imx file than
$ dd if=u-boot.imx of=/dev/sdc1 bs=1k seek=1
$sync
i inserted in sdcard slot but its unable to boot
please help in this regard
thank you
I assume you don't want to dd to partition 1 on sdc disk, but /dev/sdc itself, or the offset will be wrong. And if you also have the rootfs on this disk make sure you have enough space for u-boot (and perhaps the environment depending on where you store that) before the rootfs partition starts (e.g. sdc1), start at e.g. 16MiB offset for that.
thank you for reply
when i insert sdcard through usb adapter in /dev/ there are two partions its showing sdc,sdc1 may be i selected wrong one(that is sdc1)
can you give the details of how sdcard should be formated and why the offset is at 1024 bytes address
thank you
sdc is not a partition but the raw disk. The offset is because the partition table will start from 0, so u-boot need to reside after that.
I'd recommend to create a partition for your file system at offset 16MiB from the start of the disk, that way you should also be sure that u-boot don't share a flash erase block with the file system, thus less likely to corrupt u-boot during a power outage for instance.
Use e.g. Gparted for creating the partition for the file system at the right offset, then "dd if=u-boot.imx of=/dev/sdc bs=1k seek=1", and you should be good to go.