tree 4abb05c23dd1846666c327d4ccb8aa3458b6f44a
parent ba55d3db9bb59a52fe45dbc5d62776adbb289e54
author Will Deacon <will.deacon@arm.com> 1298661642 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1298727351 +0000

ARM: 6768/1: hw_breakpoint: ensure debug logic is powered up on v7 cores

ARMv7 allows the debug core logic to be powered down and provides the
DBGPRSR register so that software can power-up and check the status of
the logic.

This patch ensures that the debug logic is powered up on ARMv7 cores
before we attempt to access the extended debug registers.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>