Hi everyone, I searched the Internet but the help I found didn't work. I hope someone here may know how to fix it, here's the situation:
I have this ARM9 SAM9G25 which is accessed by its ttyS0. I want to disable all of the output, that was made during the U-Boot (v. 2010.06) boot, to decrease the CPU's load. Therefore there is the setenv silent 1 parameter, which i put into the BOOTCMD string like: #define CONFIG_BOOTCOMMAND " setenv silent 1;" \ "bootm " and there is (as mentioned in the Readme.silent http://git.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=blob;f=doc/README.silent;hb=v2013.10 ) the #define CONFIG_SILENT_CONSOLE #define CONFIG_SYS_DEVICE_NULLDEV #define CONFIG_SILENT_CONSOLE_UPDATE_ON_SET command, neither one is working (the lines printed out are still the same and the boot time didn't change). Whereas the setenv varify n is working, just to give an example. Does somebody see the error ? BTW (I'm not sure if this is related to this) in the referenced link there is the information, that u-boot sets the kernel command line to "console=" so that in the end there will be no output for the kernel too, but that didn't happen and it doesn't even happen if i force to boot Linux with "console=" in the default Linux command line string Thanks for your help. Kind Regards, Frank
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