In message 20050211223035.GA10412@ku-gbr.de you wrote:
I am trying to improve boot time of my linux system on my motorola i.MX system as much as possible. Therefore I tried to omit the copying and decompressing the linux kernel image ba using XIP, but the code runs
Are you sure that this is where you spend a significant part of your boot time? I guess you did run some analysis on which steps of the boot procedure take how long etc.???
I wonder how to make use of sync burst mode with u-boot in conjunction
What makes you think that this would solve a problem?
How do I disable serial support in u-boot? My u-boot is currently 60k big, in my opinion a simple bootloader which does something like memsetup and starting kernel afterwards should not be much bigger than 10k. Or is that wrong?
Your assumption may be of for "a simple bootloader", but then U-Boot is not such a beast.
Also, which problem do you try to solve? Boot time? Image size?
What makes you think that disabling the serial console would solve either of these problems? [If these actually are problems.]
Best regards,
Wolfgang Denk