tree 4b97879f42b15dc48b15776d1ff672b090731de3
parent 05ce97ae1034f03315a4cbfae5e05adae57a3843
author Mike Frysinger <vapier@gentoo.org> 1251161284 -0400
committer Mike Frysinger <vapier@gentoo.org> 1251885518 -0400

Blackfin: use scratch pad for exception stack

If the memory layout pushes the stack out of the default DCPLB coverage,
the exception handler may trigger a double fault by trying to push onto
the uncovered stack.  So handle the exception stack similar to the kernel
by using the top of the scratch pad SRAM.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>