[U-Boot] make U-Boot quiet

[simon polette]

Hi,

I'm trying to get U-Boot run silently by #defining
CONFIG_SILENT_CONSOLE and CONFIG_SYS_DEVICE_NULLDEV in the config
file, and setting "silent" in the environment, but it still don't
work.
Do I forget anything?
My device is a at91sam9261ek board (arm).

Best regards,

Simon Polette
Adeneo - Adetel Group