At least ARM allows us to dump the stack, but we currently
have no prototype for this. Add a dump_stack prototype and
provide a static inline function for architectures without
stack dump support. Also, call dump_stack() in panic() to
provide more information in the case of a panic.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

- Don't call panic with "resetting CPU...". Depending on the
  configuration the system might also hang.
- panic does not return, so no need to call reset_cpu afterwards
- bundle show_regs and panic into a seperate functions to not have
  to call both functions from each exception handler

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

We do not have irq support in barebox, so remove the unused interrupt
functions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

The exception vector at 0x14 is not used on arm, so no need
to bind this address to a exception handler. Remove the
corresponding code

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Nishanth Menon wrote:
> no signed off by and no diffstat?

Ups.

> can you use git-format-patch to send please? it is easier to review.

Sure. Here it comes:

jbe

------8<---------8<---------8<---------8<---------8<---------8<----

Subject: [PATCH] Some doxygen related fixes:
  - fix a few doxygen comments that are used in a wrong way
  - move some pages and their content to a better place in the
    generated documentation

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

remove do_reset