Thanks a lot for your answers Stefano, I put the patch in my bsp directory and adjust my u-boot receipe. On Tue, Nov 19, 2013 at 3:40 PM, Stefano Babic wrote: > Hi Jack, > > On 19/11/2013 12:25, Jack wrote: > > > For Nor-Flash we have only three files(kernel,rootfs,dtb). Where is > u-boot? > > I think it is inside the fsl-image-minimal-p1022ds.ext2.gz.u-boot rootfs > > file. Is it true? > > I do not think so, but you are the best to answer this question: unzip > the file and check inside. > > However, even if it contains a u-boot.bin or whatever is your u-boot > file, you have to extract it to write the bootloader at the right address. > > In most cases, you will see a separate image for u-boot in > tmp/deploy/images diurectory. > > > > > So, for modifying u-boot to adujst serial boaudrate, > > No. To modify the serial console under linux. > > > I understand that I can > > add SERIAL_CONSOLE = "115200 ttyS0" to my local.conf according to your > reply > > See Robert reply. SERIAL_CONSOLE is deprecated, uses SERIAL_CONSOLES > instead. > > > and it doesnt need to modify u-boot source code. > > > > Am I in the right place? > > Mmmhh..there is something missing. Usually you have a separate file for > u-boot. Of course, if u-boot is part of the filesystem, you cannot use > for a first installation because u-boot must be copied at a specific > address. > Best regards, > Stefano Babic > > -- > ===================================================================== > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic@denx.de > ===================================================================== >