Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>

Now that the other architecture-specific lib directories have been
moved out of the top-level directory there's not much reason to have the
'_generic' suffix on the common lib directory.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

circbuf could be used as a generic library and is only currently
needed when CONFIG_USB_TTY is defined.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

add support for USB-based console
(enable with "setenv stdout usbtty; setenv stdin usbtty")