[U-Boot] difference between V_PROMPT and CONFIG_SYS_PROMPT?

[Robert P. J. Day]

  another beginner-level question, i'm sure, but what's the
distinction between V_PROMPT and CONFIG_SYS_PROMPT for customizing the
u-boot prompt?

  based on the output from a straightforward grep, it appears that
every example of customizing the prompt has the form:

#define V_PROMPT                "OMAP3_EVM # "
... snip ...
#define CONFIG_SYS_PROMPT               V_PROMPT

as in, V_PROMPT is set, for no other reason than to subsequently set
CONFIG_SYS_PROMPT a few lines later, at which point V_PROMPT never
seems to be used again.

  is this just a historical holdover?  any reason why
CONFIG_SYS_PROMPT can't be set directly and V_PROMPT ignored/removed?

rday
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Robert P. J. Day                               Waterloo, Ontario, CANADA

            Linux Consulting, Training and Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Twitter:                                       http://twitter.com/rpjday
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