| commit | ed19b739c5c76ad241d30f6c6a5ee96fb284f4cf | [log] [tgz] |
|---|---|---|
| author | Will Deacon <will.deacon@arm.com> | Fri Feb 11 15:55:12 2011 +0100 |
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | Fri Feb 11 22:54:47 2011 +0000 |
| tree | 5e36a488dbf997875b732faff8fabfdbe1fac070 | |
| parent | 34cd2d38db423a991a36d14e9f79e98993addd07 [diff] |
ARM: 6656/1: hw_breakpoint: avoid UNPREDICTABLE behaviour when reading DBGDSCR Reading baseline CP14 registers, other than DBGDIDR, when the OS Lock is set leads to UNPREDICTABLE behaviour. This patch ensures that we clear the OS lock before accessing anything other than the DBGDIDR, thereby avoiding this behaviour. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>